Lithapo tsa RF tse Tloaelehileng le Khokahano ea PCB bakeng sa Khokahano e Seamless

Lithapo tsa RF ke Eng?

RF Cables (Radio Frequency cables) ke likhokahano tse khethehileng tse etselitsoeng ho fetisa melaetsa ho pholletsa le mefuta e mengata e fapaneng ea maqhubu a seea-le-moea. Ke karolo ea bohlokoa ea litsamaiso tsa sejoale-joale tsa puisano le tsa elektroniki, moo tahlehelo e tlase ea likhoele tsa RF le kopano e nepahetseng ea cable ea RF e leng bohlokoa bakeng sa ho boloka ts'ebetso le ts'epahalo.

Litšobotsi tsa Bohlokoa le Mesebetsi ea Lithapo tsa RF

• Phetiso ea Lipontšo tsa Maqhubu a Phahameng
  Lithapo tsa RF li entsoe hore li tsamaise mats'oao ka har'a sebono sa RF, ho tloha ho megahertz (MHz) e 'maloa ho ea ho li-gigahertz tse' maloa (GHz), ka likhetho tse kang lithapo tsa tloaelo tsa RF tse etselitsoeng litlhoko tse ikhethileng tsa kopo.
• Likarolo tse fapaneng tsa Likopo
  Hangata li sebelisoa mecheng ea puisano ea mehala, sefofane, tšireletso le lisebelisoa tsa bongaka, lisebelisoa tse hokahanyang tse kang li-antenna, li-radios le li-transmitters. Haholo-holo, likhoele tsa RF coaxial bakeng sa puisano e se nang mohala li sebelisoa haholo ho netefatsa khokahanyo e se nang moeli.
• Botšepehi ba Pontšo ea Maqhubu a Phahameng
  Monyetla o ka sehloohong oa lithapo tsa RF ke bokhoni ba tsona ba ho boloka sets'oants'o sa mats'oao le maemong a batlang a lebelo le phahameng. Ho sireletsa le ho haha ​​ka mokhoa o nepahetseng ho thusa ho fokotsa ho fokotseha, ho netefatsa phetiso e matla le e hlakileng.
• Kaho bakeng sa Tshebetso
  Tšebeliso ea lisebelisoa tse tsoetseng pele, mekhoa ea ho sireletsa, le ho etsa lintho ka nepo li netefatsa hore lithapo tsa RF li fana ka ts'ebetso e tsitsitseng ea motlakase, haholo lits'ebetsong tse hlokang tahlehelo e tlase ea ho kenya le karabelo e tsitsitseng ea mohato.
• Ts'ebeliso e fapaneng
  Lithapo tsa RF ha li felle indastering e le 'ngoe feela. Li bohlokoa ho phatlalatso, marang-rang a data, litsamaiso tsa sathelaete, le lisebelisoa tsa liteko, moo ho ts'epahala le ho tšoarella ho leng bohlokoa.

Ka bokhutšoanyane, lithapo tsa RF—ebang ke litharollo tse tloaelehileng kapa tse tloahelehileng tsa RF—li phetha karolo ea bohlokoa ho nolofatseng khokahanyo e tšepahalang, e sebetsang hantle ho pholletsa le liindasteri. Khetho ea bona e nepahetseng le ho kopanngoa likopanong tsa elektronike li susumetsa ka ho toba katleho ea tsamaiso le ho tšepahala ha nako e telele.

Mefuta ea Lithapo le Lihahi

Kaho le mefuta ea likhoele tsa RF li fapana haholo, e 'ngoe le e' ngoe e etselitsoe lits'ebetso tse ikhethileng le mekhoa ea ts'ebetso:

1. Lik'hafo tsa Coaxial
   • Inner Conductor: Mokhanni oa bohareng o pota-potiloe ke insulator ea dielectric.
   • Outer Conductor: E sebetsa joalo ka thebe, hangata e entsoe ka tšepe.
   • Frequency Range: Hangata e sebelisoa ho fihla ho 6 GHz.
   • Mefuta:
     • RG-174: E tšesaane ebile e tenyetseha, e loketse ho fihla ho 3 GHz.
     • RG-58: Tahlehelo e tlase, e sebetsang ho fihla ho 1 GHz.
     • RG-8 le RG-213: E teteaneng ebile e etselitsoe lisebelisoa tse phahameng tsa matla.
     • Semi-Rigid: E na le conductor e tiileng, e ka sebelisoang ho fihla ho 18 GHz.
2. Lithapo tsa Twinaxial
   • Kaho: Li-conductors tse peli tse ka hare tse nang le li-twist ho boloka litšobotsi tse leka-lekaneng.
   • Sebelisa: E loketse phetiso ea data, e tšehetsang lebelo ho fihla ho 10 Gbps.
3. Lithapo tsa Triaxial
   • Moralo: E ts'oana le likhoele tsa coaxial empa e na le lera la thebe e eketsehileng.
   • Shielding: E ​​fana ka tšireletso e phahameng haholo ea lerata ka lebaka la tšireletso e eketsehileng.
4. Litataiso tsa maqhubu
   • Sebopeho: Lipeipi tsa tšepe tse se nang letho tse tataisang maqhubu a RF.
   • Frequency Range: E sebelisoa bakeng sa maqhubu a fetang 18 GHz, e fanang ka tahlehelo ea matšoao a tlase le ho fihla ho 100 GHz.
5. Leaky Feeder Cables
   • Moralo: Lithapo tsa coaxial tse nang le li-slots tsa nako le nako ka har'a thebe.
   • Mosebetsi: E khantša lets'oao ho latela bolelele ba thapo, e sebelisoang hangata ho tsamaiseng litsamaiso tsa mehala tsa kahare.

Mofuta o mong le o mong oa lithapo o etsa karolo e ikhethileng, o ipapisitse le litlhoko tse fapaneng ho latela khafetsa, ts'ebetso ea matla le maemo a tikoloho.

Ikopanye le rona kajeno ho fumana lithapo tse ntle ka ho fetisisa tsa RF le ho ntlafatsa lisebelisoa tsa hau tsa elektroniki!

Lisebelisoa tsa RF Cables

Lithapo tsa RF li fumana ts'ebeliso e kholo indastering le lits'ebetsong tse fapaneng ka lebaka la matla a tsona a ts'epahalang a phetiso ea mats'oao. Mona ke tse ling tsa libaka tsa bohlokoa moo hangata ho sebelisoang likhoele tsa RF:

Mecha ea puisano e se nang mohala

• Antenna e fepa bakeng sa ho fetisa le ho amohela matshwao
• Ho hokahanya liteishene tsa motheo ho netefatsa puisano e se nang moeli
• Sistimi ea li-antenna tse ajoang bakeng sa tšireletso e ntlafalitsoeng le kabo ea matšoao

Marang-rang a se nang mehala

• Ho hokela li-routers, libaka tsa phihlello, le li pheta-pheto ho theha marang-rang a se nang mohala
• Li-cabling tse hlophisitsoeng ka har'a meaho ho fana ka khokahano ea marang-rang
• Litsi tsa data le likamore tsa li-server bakeng sa phetiso e nepahetseng ea data

Phatlalatsa TV / Radio

• Li-wiring tsa studio le li-antenna li fepa liteishene tsa khaso
• Lihokelo tsa thepa e nkehang bakeng sa khaso ea ha u ntse u tsamaea
• Litlhophiso tsa nakoana tsa kantle bakeng sa khaso ea liketsahalo

Aerospace / Ts'ireletso

• Litsamaiso tsa radar le lifofane tsa lifofane bakeng sa puisano le ho tsamaea ka sefofane
• Lipuisano tsa sekepe le likoloi bakeng sa ts'ebetso ea likepe le tsa naha
• Sistimi ea tataiso ea metsu bakeng sa ho shebisisa hantle
• Litsamaiso tsa liroboto li laola likoloi tsa sefofane tse sa sebetsoeng le likoloi tse thehiloeng fatše

Mekhoa ea Bongaka

• MRI le lisebelisoa tsa litšoantšo bakeng sa litšoantšo tsa bongaka tse phahameng
• Lihokelo tsa lisebelisoa tsa ho buoa bakeng sa taolo e nepahetseng le ho beha leihlo nakong ea lits'ebetso
• Litsamaiso tsa tlhokomelo ea mokuli bakeng sa ho beha leihlo bophelo bo botle ka nako ea sebele

Teko le Tekanyo

• Ho hokela lisebelisoa tsa liteko joalo ka lijenereithara tsa matšoao, li-oscilloscopes le li-spectrum analyzers bakeng sa litekanyo tse nepahetseng.
• Wiring ea kamore ea Anechoic bakeng sa tikoloho ea tlhahlobo e laoloang

Tšireletso ho RF Cable Assemblies

Ho sireletsa dikopanong tsa thapo ya RF ke karolo ya bohlokwa e netefatsang botšepehi ba letshwao le ho fokotsa tshitiso ya motlakase ( EMI ). E kenyeletsa ho sebedisa lera le tsamaisang motlakase, leo hangata le entsweng ka thepa e kang koporo kapa aluminium, le potileng karolo e ka hare ya thapo. Thebe ena e tsamaisang motlakase e sebetsa e le tshitiso, e thibelang EMI ya kantle ho sotha letshwao le ho emisa letshwao la RF ka hara thapo ho dutla le ho ama disebediswa tse ding.

Ho sireletsa ka katleho ho bohlokoa tikolohong e nang le maemo a holimo a EMI, joalo ka maemo a indasteri, lits'ebeletso tsa bongaka, kapa libaka tse nang le lisebelisoa tse ngata tsa elektroniki. Ho sebetsa hantle ha tšireletso ho ipapisitse le lintlha tse kang thepa e sebelisitsoeng, sebaka sa tšireletso, le moralo oa mohala. Lithapo tse sirelelitsoeng ka nepo li netefatsa phetiso ea matšoao a hlakileng, a bohlokoa bakeng sa ho ts'epahala le ho nepahala ha litsamaiso tsa puisano le data.

Lintlha tsa Tikoloho tse Amang Lithapo tsa RF

Lithapo tsa RF li pepesehetse maemo a fapaneng a tikoloho a ka amang ts'ebetso le ho tšoarella ha tsona. Ho utloisisa lintlha tsena ho bohlokoa bakeng sa ho netefatsa phetisetso ea mats'oao e tšepahalang le ho boloka nako e telele ea ts'ebetso ea li-cable tsa RF. Mona ke lintlha tse ling tsa bohlokoa tsa tikoloho tse lokelang ho nahanoa:

1. mocheso
   Lithempereichara tse feteletseng li ka ama thepa ea motlakase le botsitso ba 'mele ba likhoele tsa RF. Lithempereichara tse phahameng li ka baka tahlehelo ea matšoao, ho fokotseha ho hoholo, esita le ho senyeha ha insulation. Ka lehlakoreng le leng, mocheso o tlase o ka etsa hore likhoele li robehe, e leng se etsang hore ho be bonolo ho senya kapa ho robeha.
2. Mongobo le Mongobo
   Mongobo le mongobo li ka baka kutu le oxidation ea likarolo tsa conductive tsa cable, e leng se lebisang ho senyeha ha matšoao le ho eketseha ha khanyetso. E ka boela ea ama thepa ea dielectric ea thapo, e bakang impedance e fetotsoeng le tahlehelo ea matšoao. Libakeng tse nang le mongobo o phahameng, ho tiisa mongobo ka mokhoa o nepahetseng le ho kenya cable ho bohlokoa ho thibela litaba tsena.
3. Ho pepesehela Lik'hemik'hale
   Lithapo tsa RF tse kentsoeng libakeng tse pepesehetseng lik'hemik'hale, joalo ka lisebelisoa tsa indasteri kapa lilaboratori, li hloka ho mamella ho hola ho ka bang teng ke lik'hemik'hale. Lik'hemik'hale tse ling li ka theola mokelikeli, tšireletso kapa likhokahano tsa thapo, e leng se lebisang tšitisong ea mats'oao, tahlehelo, kapa esita le ho hloleha ho felletseng ha cable. Ho khetha lithapo tse nang le lisebelisoa tse hananang le lik'hemik'hale le mekhoa e nepahetseng ea tsamaiso ea cable ke tsa bohlokoa bakeng sa ho boloka ts'ebetso libakeng tse joalo.
4. Khatello ea Mechini
   Lithapo tsa RF li ka ba le khatello ea maikutlo ka lebaka la lintho tse kang ho kobeha, ho kobeha kapa ho thothomela. Ho kobeha ho feteletseng kapa ho sa lokelang ho ka baka tahlehelo ea matšoao, ho fokotseha ho hoholo, esita le ho robeha ha cable. Vibration e ka lokolla likhokahano kapa ea senya sebopeho sa cable, e amang botšepehi ba matšoao. Tsela e nepahetseng ea cable, ho imolla khatello, le mehato ea tšireletso ea cable lia hlokahala ho fokotsa khatello ea mochine.
5. Tšitiso ea motlakase (EMI)
   Lithapo tsa RF li ka ba kotsing ea ho sitisoa ke motlakase ho tsoa lisebelisoa tse haufi tsa motlakase, lithapo tsa motlakase kapa mehloling e meng ea RF. EMI e ka hlahisa lerata le sa batleheng kapa ea senya lets'oao le lakatsehang, e lebisang ho boleng bo bobe ba matšoao. Mekhoa e nepahetseng ea ts'ireletso ea cable le ho thea fatše e thusa ho fokotsa tšusumetso ea EMI le ho netefatsa phetisetso ea mats'oao e tšepahalang.

Ka ho ela hloko lintlha tsena tsa tikoloho le ho kenya tšebetsong mehato e nepahetseng, joalo ka ho khetha likhoele tse etselitsoeng maemo a itseng a tikoloho, ho sebelisa mekhoa e nepahetseng ea taolo ea lithapo, le ho latela mekhoa e metle ea indasteri, ts'ebetso le ho tšoarella ha likhoele tsa RF li ka ntlafatsoa, ​​​​ho netefatsa phetiso ea mats'oao e tšepahalang lits'ebetsong tse fapaneng. .

Kopano ea RF Cable le ho kenya

Ho kopanya le ho kenya cable ea RF ho kenyelletsa mehato le lintlha tse 'maloa tsa bohlokoa ho netefatsa ts'ebetso le ts'ebetso e nepahetseng. Lintlha tse ling tsa bohlokoa ke tsena:

Dikopano tsa Dikheibole tsa Elektroniki: Dikopano tsa dikheibole tsa RF di na le dikheibole le dihokelo. Mefuta e mengata ya dihokelo tsa coaxial, tse kang SMA, SSMA, TNC, N-Type, DIN, jj., di a fumaneha. Dikgokelo tse entsweng ka nepo di netefatsa phetiso e tshepahalang ya letshwao.

Ho hokela Lihokelo: Lihokelo li ka hokeloa ho thapo ka ho sebelisa mekhoa e fapaneng, ho kenyeletsoa ho soldering, crimping, compression fittings, kapa mekhoa e khethehileng ea khokahano. Khetho e itšetlehile ka mofuta oa khokahano le kaho ea thapo.

Ho Tsamaisa le ho Sireletsa: Ho lokela ho elwa hloko ho tsamaisa le ho tiisa likhoele hantle. Qoba ho kobeha kapa ho kobeha ho feteletseng, 'me u tiise likhoele tseleng ea tsona ntle le ho li tiisa haholo. Li-clamp, li-lacing le li-conduit li ka sebelisoa bakeng sa taolo e nepahetseng ea likhoele. Ho siea li-loop tsa tšebeletso likhokahanong ho lumella ho tenyetseha nakong e tlang.

Ho Qoba ho Kena Tshitiso: Ho fokotsa tšitiso, ho bohlokoa ho boloka likhoele tse sirelelitsoeng hantle le ho boloka karohano e nepahetseng lipakeng tsa tsona. Ho sebelisa mekhoa ea ho tšela ho ka thusa ho fokotsa ho kopana. Ho emisa fatše le ho emisa thebe ho lokela ho etsoa ka nepo ho boloka botšepehi ba lets'oao.

Ho Thibela Boemo ba Leholimo: Libakeng tse kantle kapa tse thata, mehato ea ho thibela boemo ba leholimo ea hlokahala. Lisebelisoa tse khethehileng tsa ho roala li ka sireletsa likhoele mongobong le linthong tse amang tikoloho. Li-roller loops li ka sebelisoa ho tlosa mongobo libakeng tsa khokahano, 'me likhokahano tsa ho koala li thibela ho kena ha mongobo.

Tšireletso ea Lehalima: Tšireletso e nepahetseng ea lehalima e bohlokoa bakeng sa lits'ebetso tsa RF tsa kantle. Likhoele tse thellang tse kenang mehahong li thusa ho qhala maqeba a lehalima. Li-arrester tsa lehalima li ka kenngoa ho khelosa le ho qhala matla a lehalima. Li-surge suppressor li ka boela tsa sebelisoa lisebelisoa ho sireletsa khahlanong le ho phahama ha motlakase ka nakoana.

Ka ho latela mehato ena le ho nahana ka lintlha tsena nakong ea kopano le ho kenya thapo ea RF, u ka netefatsa ts'ebetso e nepahetseng, ts'ebetso le tšireletso ea sistimi ea RF . E thusa ho boloka botšepehi ba lets'oao, ho fokotsa tšitiso, le ho sireletsa khahlanong le likotsi tsa tikoloho le ho phahama ha motlakase.

Ikopanye le rona ho Highleap Electronic ho fumana lithapo tsa premium tsa RF le ho li kopanya ntle le moroallo likopanong tsa hau tsa PCB.

Tlhahlobo ea Cable

Teko ea cable ea RF ke ts'ebetso ea bohlokoa ho netefatsa ts'ebetso le ts'epahalo ea likhoele tse sebelisoang lits'ebetsong tsa RF. Teko e phethahetseng e netefatsa hore thapo e kopana le lintlha tsa motlakase, tsa mochini le tsa tikoloho pele e tsamaisoa.

Ha o rala sistimi ea RF, likarolo tse kang li-module, li-IC, lihokelo le likhoele li khethoa ho latela litlhoko. Le hoja hangata ho shebiloe likaroloana tse sebetsang, ho tlameha ho hlokomeloa ho reka le ho lekola likhokahano tse sa sebetseng joalo ka likhoele. Li ka etsa kapa tsa senya ts'ebetso ea sistimi.

Hang ha thapo e rekiloe, tlhahlobo e netefatsa hore na e kopana le lintlha tse hlokahalang bakeng sa kopo. Mekhahlelo ea bohlokoa e kang tahlehelo ea ho kenya, tahlehelo ea ho khutla, VSWR, katleho ea tšireletso, botsitso ba mohato le ho sebetsana le matla li tlameha ho hlahlojoa. Sena se hloka ho utloisisa mekhoa e fapaneng ea liteko, mekhoa ea ho lekanya, litekanyo, mamello le lisebelisoa.

Liteko Parameters le Mekhoa

Tahlehelo ea ho Kena: E lekanya ho fokotseha ha lets'oao ka thapo e fetang lebanta la maqhubu a sebetsang ho sebelisoa sesebelisoa sa ho sekaseka marang-rang a vector (VNA). Jenereithara ea ho sweep e khanna VNA. Thapo e tlas'a teko (CUT) e hokahane pakeng tsa sehokelo sa tataiso le koung ea teko ea VNA. Tahlehelo khahlanong le makhetlo e tlalehiloe.

Tahlehelo ea ho Khutla: E netefatsa hore na thapo e tsamaisana hantle hakae le lisebelisoa tse hokahantsoeng. Ho bapisa ho fokolang ho baka ponts'o ea lets'oao. Ha ho sebelisoa VNA, tahlehelo ea ho khutla e lekanngoa ka ho lekanya liphoso tsa ho seta liteko ebe ho felisoa CUT ka mojaro. Molaetsa oa tahlehelo ea ho khutla o bonoa ho pholletsa le sehlopha.

VSWR: E amanang le tahlehelo ea ho khutla, VSWR e hlahloba ho se tsitse ha impedance ho bakang ho bonahatsa. VSWR e phahameng e bontša ho se lumellane ho senyang matšoao.

Katleho ea ho Sireletsa: E netefatsa bokhoni ba thebe ea cable ba ho thibela tšitiso masimong a kantle a nang le mahlaseli. E etsoa ka lisebelisoa tse khethehileng tsa teko tse kenyang matšoao le ho lekanya ho kenella ka har'a cable.

Tieho ea ho Hasana: E lekanya nako ea ho hasana ha lets'oao ka har'a thapo. E bohlokoa bakeng sa lits'ebetso tse hlokang nako e nepahetseng le ho hokahanya. E fumanoa ka ho lekanya mohato kapa tieho ea nako khahlanong le makhetlo.

Ho Tsitsisa Mokhahlelo: Ho lekola ho kheloha ha mokhahlelo oa matšoao holim'a ho fetoha ha mocheso le ho sebetsana le mechine. Ho ntlafatsa ho nepahala ha sistimi le ho lekanyetsa. Phetoho ea mokhahlelo e lekanngoa ho sebelisoa VNA ha ho ntse ho hatisoa thapo.

Ho Sebetsana le Motlakase: Ho leka hore na thapo e mamella maemo a matla a RF a itseng ntle le tshenyo kapa ho futhumatsa ho feteletseng. E sebediswa ho sebediswa jenereithara ya matshwao le ho beha leihlo mocheso le diparamithara tsa thapo.

Sekgala sa ho Kobeha: Thapo e kobeha kgafetsa ho potoloha di-radii tse fapaneng mme e lekoa bakeng sa ho senyeha ha tshebetso ya motlakase. E netefatsa ho tenyetseha ha ho kenngwa le ho sebediswa.

Teko ea Tikoloho: E beha cable mochesong o feteletseng, mongobong, ho thothomela, ho tšoha, ho bola jj. ho latela litlhoko tsa ts'ebeliso ho sebelisoa likamore tse ikhethileng.

Teko ea Mekaniki: Cable e pepesetsoa matla a ho pshatla, ho thula, ho sotha le ho hula ho netefatsa ho tiea le ho tšoarella.

Ho Latela Melao: Ho netefatsa hore thapo e fihlela maemo a hlokahalang a motlakase, a mechini, a tikoloho le a polokeho bakeng sa indasteri le ts'ebeliso.

Lisebelisoa tsa Teko le Seta

Lisebelisoa tse tloaelehileng tsa tlhahlobo ea cable:

• Vector Network Analyzer (VNA): E lekanya tahlehelo ea ho kenya, tahlehelo ea ho khutla, VSWR, mohato joalo-joalo.
• Time Domain Reflectometer (TDR): E sebelisetsoa litekanyo tsa impedance le sebaka sa phoso.
• Jenereithara ea Letšoao, Metha ea Matla: Hlahisa matšoao a tlhahlobo, lekanya ts'ebetso ea matla.
• Spectrum Analyzer: E hlahloba lintho tse fosahetseng, tse lumellanang, tse sothehileng.
• Network Analyzer: Bakeng sa ho lekanya bokhoni, inductance le likarolo tse ling tsa motlakase.
• Chambers: Fana ka mocheso, mongobo, vibration, corrosion joalo-joalo.
• Lisebelisoa tsa Matla, Amplifiers: Ho leeme, ho khanna likhoele tlas'a teko.
• Mechanical Fixtures: Sebelisa matla a ho kobeha, ho sotha, ho pshatla le ho hula.

Calibration e sebelisa litekanyetso tse tsebahalang e tlosa liphoso tsa tsamaiso. Lihokelo tse nepahetseng, li-adapter le likhoele tsa liteko li sebelisoa ho hokahanya CUT ho lisebelisoa tsa liteko. Automation e eketsa lebelo le ho pheta-pheta.

Litokomane tse phethahetseng le tlhahlobo ea liphetho tsa tekanyo ke tsa bohlokoa. Ka kakaretso, ho hlokahala mokhoa o matla oa tlhahlobo ho netefatsa ts'ebetso ea 'nete ea lefats'e ea cable. Sena se tiisa ho ts'epahala maemong a fapaneng a ts'ebetso ha e kentsoe.

1. Kena Tahlehelo Testing

Tahlehelo ea ho kenya ke phokotso ea lets'oao ka thapo ho feta maqhubu. E itšetlehile ka bolelele ba cable, kaho, makhetlo a mangata, ho khumama joalo-joalo IL e fokotsa ka ho toba matla a pontšo a fumanehang, kahoo ho fokotsa IL ke ntho e lakatsehang. Moralo o nepahetseng oa sistimi ea lithuso tsa data tsa IL.

Kenyelletso Tahlehelo Lisosa

Tahlehelo ea Mokhanni: Tahlehelo e hanyetsang ho khanni e bohareng le thebe. E eketseha khafetsa ka lebaka la phello ea letlalo. E tlase bakeng sa khanni e kholo.

Tahlehelo ea Dielectric: Tahlehelo ea thepa e sireletsang mocheso e baka ho fokotseha ha mocheso, haholo-holo maqhubung a phahameng. Li-dielectric tse nang le tahlehelo e tlase joalo ka PE e nang le foam lia thusa.

Ho dutla ha metsi: Ho lahleheloa ke mahlaseli a kotsi ka lebaka la tšireletso e sa phethahalang. Tšireletso e ntle ea tšireletso e ntlafatsa ho dutla ha metsi.

Tahlehelo ea VSWR: Ho se lumellane ha lihokelo kapa ho kobeha ho etsa hore matla a mang a bonahale morao ho fapana le ho fetisoa.

Tahlehelo ea Sehokelo: Li-interface li eketsa ho se tsoele pele le ho hanyetsa ho kopana. Lihokelo tsa boleng bo holimo li fokotsa sena.

Tahlehelo ea ho kobeha: Ho kobeha ho mpefatsa tahlehelo ea mahlaseli le khatello ea jakete. Radius e kholo ea ho kobeha e fana ka tahlehelo e tlase.

Mathata a Kopano: Tokisetso e fokolang le ho khomarela ho eketsa ho hanyetsa ho kopana. Kopano e sa tsitsang e baka dipharologanyo.

Kenyelletso Tahlehelo Testing

Helmets

• Vector network analyzer e nang le likhoele tsa teko
• Feela jenereithara, amplifier
• Directional couplers, attenuators
• Li-detectors le li-sensor tsa matla
• Lisebelisoa tsa calibration

Tsamaiso

1. Bokella seta sa liteko: jenereithara, li-couplers, likhoele tsa liteko, VNA
2. Lekanya lisebelisoa, haholo-holo li lebisa ho sesebelisoa tlas'a teko
3. Hokela thapo tlas'a teko pakeng tsa coupler ka tsela le VNA
4. Lumella melumo ea ho fiela le tahlehelo ea ho kenya rekoto ho VNA ho latela mefuta ea maqhubu
5. Lekanya IL ho li-frequencies tse ngata tsa setsi le li-spans ho koahela sebaka se feletseng
6. Bapisa liphetho le litlhaloso. Etsa tlhahlobo ea ho pheta-pheta.
7. Tlhahlobo ea ho hloleha ho likhoele tse nang le tahlehelo e feteletseng
8. Liphetho tsa litokomane bakeng sa lisampole tsohle ho contqin

Teko ea tahlehelo e kentsoeng e tiisa hore ho fokotsa thapo ho ka har'a meeli ebile ho tsitsitse ho feta mofuta o hlokahalang oa maqhubu. Lithuso tsa data ho moralo oa sistimi le khakanyo ea ts'ebetso.

2. Khutlisa Tahlehelo Testing

Tahlehelo ea ho khutlisa (RL) e bonts'a hore na thapo e na le impedance hantle hakae le lisebelisoa tseo e li hokahanyang. Ho se tsamaisane ho baka likhakanyo tsa mats'oao tse ka theolang ts'ebetso. RL e angoa ke sehokelo sa sehokelo, prep ea cable le ho sebetsana. Ka hona ho lekanya RL ho bohlokoa ho tšoaneleha likhoele tse kopaneng.

Tahlehelo ea ho khutla e bapisa matla a lets'oao la ketsahalo le matla a bonahatsoang a bakoang ke li-discontinuities joalo ka likhokahano tsa likhokahano. Ke karo-karolelano ea matla a ketsahalo ho dB. Tahlehelo e phahameng ea ho khutla ho dB e bonts'a likhakanyo tse tlase le ho tsamaisana hantle.

Cable e ts'oanang hantle e ka ba le tahlehelo e sa feleng ea ho khutla. Empa ha e le hantle, litekanyetso tse ka holimo ho 15 ho isa ho 20dB lia amoheleha. Tahlehelo e tlase e bonts'a ho se lumellane ho bakang likhakanyo tsa mats'oao. Sena se ka kena-kenana le matšoao a fetisoang a bakang liphoso tsa data.

Tahlehelo e mpe ea ho khutla e ka hloka ho poma bolelele ba lithapo, ho kopanya likhokahano bocha, kapa ho khutlisa likhoele tse senyehileng. RL e tlameha ho netefatsoa ho netefatsa ts'ebetso e nepahetseng lits'ebetsong tsa RF.

Mekhoa ea Teko

Likhetho tse tsebahalang tsa ho lekanya tahlehelo ea cable:

Sehlahlobi sa Marangrang a Vector: Se dumella ditekanyo tsa RL tse tjheseditsweng hodima mefuta ya maqhubu. Di-couple tse tataisang di arola matshwao a ketsahalo le a bonahatswang. Di-VNA tsa sejwalejwale di fana ka diphetho tse lekantsweng le tse nepahetseng tsa broadband.

Ditshekatsheko tsa Cable: Disebediswa tse inehetseng tsa teko tse nang le mohlodi, mokopanyi le mithara ho lekanya RL ka maqhubu a fapaneng kapa ho feta sebaka. Tse ding di kenyeletsa bokgoni ba reflectometry ya nako-domain (TDR).

Limithara tsa Setšoantšo sa Lerata: Fana ka bokhoni ba ho lekanya RL hammoho le Setšoantšo sa Lerata. Teko e potlakileng ea ho se tsamaee/ho se tsamaee ea RL e amohelehang.

Sehlahlobi sa Spectrum: Ka jenereithara ea ho latela le sehokelo, e ka lekanya RL khahlanong le makhetlo. Ho hlokahala mosebetsi o mongata oa ho seta.

Di-Reflectometer: Disebediswa tse inehetseng ho lekanya ho bonahatsa lesedi ka ho sebedisa marokho le di-receiver tse lokisitsweng. Di sebediswa bakeng sa di-band tse itseng tsa maqhubu.

Tlhakiso

Ho tlosa liphoso ka lebaka la lithapo tsa liteko, likhokahano le li-couplers, ho hlokahala hore ho lekoe pele ho lekanya thapo tlas'a teko. Litekanyetso tse khutšoane, tse bulehileng, tsa mojaro, le ka mokhoa oa ho lekanya li sebelisoa ho etsa hore sefofane se lekanye se tloaelehe. Li-VNA tsa sejoale-joale li na le mekhoa ea ho lekanya e ikemetseng bakeng sa boiketlo.

Khutlisetsa Mehato ea Tekanyo ea Tahlehelo

1. Lokisa lisebelisoa tsa tlhahlobo bakeng sa tekanyo ea tahlehelo ea ho khutla. Hokela likarolo tse kang coupler, jenereithara, detectors.
2. Etsa teka-tekano ka ho sebelisa maemo a makhutšoane a nepahetseng, a bulehileng, a mojaro, ka tsela e nepahetseng.
3. Hokela thapo tlas'a teko. Emisa hole ka mokhoa o ikhethileng.
4. Lumella matšoao a tlhahlobo 'me u shebe tahlehelo ea ho khutla khahlano le khafetsa. Fetola sekala bakeng sa tharollo e ntle.
5. Tahlehelo ea ho khutlisa hangata e ka baloa ho sebelisoa matšoao. Bonyane ba moralo, boleng bo phahameng.
6. Bapisa liphetho le litlhaloso. Pheta bakeng sa lihokelo ka bobeli.
7. Hlalosa liphapang leha e le life le ho li lokisa ha ho hlokahala ka ho emisa bocha, ho metha bocha kapa ho kopanya hape.
8. Liphetho tsa litokomane. Pasa/feela ho ipapisitsoe le litlhoko.

Teko e nepahetseng ea tahlehelo ea ho khutla e lekanya boleng ba kopano ea cable le Matching. E netefatsa ts'ebetso e nepahetseng ea sistimi mme e thibela mathata a tšimo ka lebaka la ho se lumellane.

3. Tlhahlobo ea VSWR

VSWR (voltage stand wave ratio) e lekanya ho se lumellane ha likhoele tse bakang menahano. Ke karo-karolelano ea boholo ho isa ho bonyane ba motlakase leqhubung le emeng ka lebaka la maqhubu a tsamaeang a eang pele le a bonahatsang.

VSWR e bonts'a li-discontinuities tse hlahang ho tsoa ho likhokahanyo tse sa tsamaisaneng kapa ho fapana ha thapo ea cable. Mohala o ts'oanang hantle o ka ba le VSWR ea 1. Litekanyetso tse fihlang ho 1.5 li amoheleha ka kakaretso.

Lisosa tsa VSWR e Phahameng

• Ho fokotsa lithapo tse mpe kapa ho hlobola ha cable ho lebisa phetohong ea impedance
• Sehokelo sa boleng bo tlase kapa se sa nepahalang
• Tokiso ea lithapo e sa nepahalang joalo ka li-conductors tse kentsoeng kapa tse sa lekanang
• Tšenyo kapa ho kobeha ho fetolang phepelo ea cable
• Tšilafalo e amang likhokahano tsa lihokelo
• Ho kenyeletsoa ha thapo ho baka liphetoho tsa sebopeho

Mekhoa ea ho lekanya ea VSWR

• Vector Network Analyzer: E lekanya VSWR ho tloha ho impdance kapa ho khutlisa data ea tahlehelo. Ha ho lisebelisoa tse hlokahalang.
• VSWR Meter e inehetseng: E ​​bonts'a VSWR ka kotloloho. Litsela tsa Directional coupler ho ea pele le matshwao a bonahatsang.
• Spectrum Analyzer: Ka jenereithara ea ho latela le coupler, VSWR e ka fumanoa tahlehelong ea ho khutla.
• Slotted Line: E lumella ho khetholla libaka tsa motlakase oa min/max ho bala VSWR. Hangata ha e sebetse kajeno.
• Reflectometers: Lisebelisoa tse bonolo tsa VSWR tse sebelisang borokho le detector. Ho nepahala ho fokolang.

Mehato ea ho lekanya VSWR

1. Lokisetsa ho qala liteko ka mitha ea VSWR kapa VNA e nang le coupler
2. Etsa tlhahlobo ea lisebelisoa ha ho hlokahala
3. Hokela thapo tlas'a teko, emisa pheletso e hole ka Z0
4. Lumella lets'oao la tlhahlobo le ho fiela sebaka se lakatsehang sa maqhubu
5. Rekota VSWR ka linako tse ling kapa boholo/min ho feta nako
6. Sekaseka liphetho 'me u li bapise le meeli e amohelehang
7. Lekola hape kamora ho emisoa bocha kapa ho kopanya hape ha ho hlokahala
8. Tokomane liphetho tsa VSWR bakeng sa lisampole tsohle

Lithapo tsa RF tsa boleng bo botle li lokela ho ba le VSWR e tlase, e tsitsitseng ho pholletsa le sehlopha sa ts'ebetso. Teko ea VSWR e fumana mathata leha e le afe pele a kenya.

4. Teko ea Botsitso ea Phase

Botsitso ba karolo bo bontša kamoo thapo ea RF e bolokang karolo e sa fetoheng ea maemo a tikoloho joalo ka mocheso hammoho le ho sebetsana le mochini joalo ka ho tenyetseha le ho thothomela. Botsitso bo betere ba mohato bo ntlafatsa ho nepahala le ho lekanya tsamaiso.

Liphoso tsa botsitso ba mohato li hlaha ka lebaka la liphetoho tse sa fetoheng tsa dimensional le dielectric ho feta mocheso hammoho le deformation ea mochini e fetolang bolelele ba motlakase. Lithapo tse phahameng tsa ts'ebetso li sebelisa lisebelisoa tse khethehileng le mekhoa ea kaho ho matlafatsa botsitso ba mekhahlelo.

Botsitso ba mohato oa teko bo kenyelletsa ho lekanya liphetoho tsa mokhahlelo kapa bolelele ba motlakase ka har'a likhoele ha li ntse li le tlas'a khatello ea mocheso kapa mochini. Phetoho ea sekhahla sa tlhoro e lekanya botsitso.

Mokhoa oa ho Leka

Helmets

• Kamore ea mocheso e khonang ho sebetsa bonyane -40C ho isa ho 85C
• Tafole ea vibration e nang le maqhubu a feto-fetohang le amplitude
• Vector network analyzer ho lekanya mohato
• Lithapo tsa tlhahlobo tse tsitsitseng, lihokelo
• Lisebelisoa tsa ho ts'oara le ho tsamaisa likhoele

Tsamaiso

1. Lekanya karabo ea mokhahlelo ka mocheso oa kamore e le tšupiso
2. Mocheso oa mocheso ho feta sebaka se hlokahalang (mohlala -40C ho isa ho 85C)
3. Lekanya mohato khahlano le mocheso le ho rekota ho kheloha ha tlhoro
4. Cable e tsamaisanang le liteko tsa vibrate ho tloha ho 10 Hz ho isa ho 2 kHz
5. Lekola phapang ea mohato khahlano le maqhubu a ho sisinyeha
6. Pheta lisampole tse ngata le liphetho tsa litokomane
7. Sekaseka haeba tshebetso e kopana le ditekanyetso

Ho ntlafatsa Botsitso ba Mokhahlelo

• Dielectric tsa polyethylene tse phahameng haholo
• Li-conductor tse entsoeng ka silevera
• Kaho e lefshoang/e leka-lekaneng
• Li-laminate tse kopantsoeng
• Jacket e hlephileng bakeng sa mamello ea flexure
• Ho qoba li-plasticizers
• Ho fokotsa ho kenella ha mongobo

Teko e matla ea ho tsitsa e tiisa ts'ebetso ea cable bakeng sa lits'ebetso tse hlokang ho kenyelletsoa likhokahano tsa satellite, radar le litsamaiso tsa calibration.

5. Cable Bend Testing

Teko ea ho kobeha ha cable e lekola sebaka se tlase sa ho kobeha seo thapo ea RF e ka mamellang ntle le ho nyenyefatsa ts'ebetso ea motlakase. Bend radius e ipapisitse le bophara ba cable. Likoba tse thata li eketsa mahlaseli a kotsi le tahlehelo ea khatello ea baki.

Teko ea bend e kenyelletsa ho phunya likhoele khafetsa ho potoloha li-diameter tse fapaneng tsa mandrel, le methapo ea ho lekanya joalo ka tahlehelo ea ho kenya kamora tlhahlobo ka 'ngoe. Bophahamo bo bonyenyane ka ho fetisisa bo nang le liphetho tse amohelehang bo etsa qeto ea sebaka sa ho kobeha se ka sebelisoang.

Mekhoa ea ho Bend Tahlehelo

• Jacket Compression: Braid e hatelloa haufi le mokhanni, e fetola ho se sebetse le tahlehelo e ntseng e eketseha.
• Dielectric Stress: Insulator e ba le khatello ea maikutlo, e fetola litšobotsi tsa motlakase
• Tahlehelo ea Mahlaseli: Likoba li phahamisa matla a tšimo ho lumella matla a mangata ho tsoa ka ntle
• Phetoho ea Conductor: Mokhanni oa bohareng o hatelloa ke ho kobeha ka thata
• Tšenyo ea Sebopeho: Ho kobeha ho feteletseng ho ka senya li-conductor kapa lithebe
• Metallic Creep: Ho kobeha ha nako e telele ho susumetsa ts'ebetso ea tšepe e fetohang

Mokhoa oa ho Bend Testing

• Sebelisa mandrels ka bophara bo fapaneng, hangata bo fapana ka 6 mm
• Koahela thapo ho pota mandrel bonyane likhato tse 90
• Etsa bonyane makhetlo a 10 bakeng sa bophara bo bong le bo bong bo bonyenyane
• Lekanya lintlha tsa bohlokoa tse kang tahlehelo ea ho khutla le tahlehelo ea ho kenya ka mor'a sete ka 'ngoe
• Hlahloba cable 'meleng bakeng sa tšenyo leha e le efe ea baki kapa kinks
• Pheta tatellano ea bend ho fihlela ts'ebetso e senyeha
• Bophahamo bo fetileng bo nang le ts'ebetso e amohelehang bo tsejoa e le radius e fokolang ea bend
• Amahanya liphetho le litlhaloso tsa moetsi

Lithapo tsa tlhahlobo ea bend pele li tsamaisoa li fokotsa ho hloleha ha masimo le tlhokomelo. Lithapo tse lekantsoeng hantle li etsa bonnete ba ho fetoha habonolo bakeng sa ho tsamaisa ntle le ho nyenyefatsa ts'ebetso ea motlakase.

6. Teko ea ho Tšoara Matla a Cable

Ho sebetsana le motlakase ho lekanya boholo ba matla a RF ao thapo e ka a fetisang ntle le ho senyeha kapa ho phahama ho feta tekano. Teko ke ea bohlokoa bakeng sa lihokelo tsa matla a phahameng. Matla a feteletseng a ka senya lithapo.

Ho sebetsana le matla ho itšetlehile ka kaho ea cable, lisebelisoa, bophara le ho pholile. Teko e netefatsa lintlha ka ho fetisetsa matla a RF maemong a phahameng ka ho latellana ha ho ntse ho lekola boemo ba cable.

Mokhoa oa ho Leka

Helmets

• Sekoaelo sa jenereithara ea RF se hlokahalang khafetsa
• Directional coupler, attenuator
• Li-sensor tsa matla ho lekanya matla a RF
• Thermocouples kapa khamera e futhumatsang ho shebella mocheso
• Khalorimitha (ka boikhethelo) ho lekanya mocheso hantle

Tsamaiso

1. Lokisetsa kopano ea liteko ka jenereithara ea matšoao, coupler, sensor ea matla le thapo tlas'a teko
2. Qala ka matla a tlase ho pota 1 watt
3. Eketsa matla a RF ka mehato, ho lumella mocheso ho tsitsa
4. Lekola mocheso oa cable ka bolelele ba eona
5. E nyolohela ho 50% e phahameng ho feta ts'ebeliso ea matla e lekantsoeng
6. Sheba tšenyo e kang dielectric e qhibilihisitsoeng
7. Pheta ka linako tse fapaneng tsa mesebetsi le maqhubu
8. Matla a phahameng ka ho fetisisa a ts'ehetsoeng ka har'a meeli a lekanya matla a matla

Ho theha matla a motlakase ka nepo ho qoba ho bua haholo ka lithapo bakeng sa ho boloka litšenyehelo kapa ho se hlalose ka mokhoa o kotsi hore na ke litsamaiso life tse senyang.

fihlela qeto e

Ho khetha thapo e nepahetseng ea RF ho bohlokoa bakeng sa lits'ebetso tsa maqhubu a holimo, empa mefuta e fapaneng ea likhetho e ka etsa hore qeto e be thata. Ho lekola likarolo tsa bohlokoa joalo ka lebelo la maqhubu, boemo ba matla, le maemo a tikoloho ho bohlokoa ho hokahanya thapo le litlhoko tsa kopo. Ho sebelisana 'moho le bahlahisi ba tsebahalang ba sebetsanang le moralo oa likhoele tsa RF le ho fana ka tlhahiso e tsitsitseng le tlhahlobo e matla ho bohlokoa. Lisebelisoa tsa boleng le boenjiniere bo nepahetseng li netefatsa ts'ebetso, ts'epahalo le boleng ba nako e telele.

Ho Highleap Electronic , le hoja re sa hlahise dikheibole tsa RF, re sebedisa marangrang a rona a pharaletseng a bahlahisi ba dikheibole tsa RF ba tshepahalang ho thusa bareki ba rona ho fumana dikheibole tsa RF tsa boleng bo hodimo, tse ikgethileng tse etseditsweng ditlhoko tsa bona tse ikgethang. Hore na o hloka dikheibole tse nang le tahlehelo e tlase ya ho kenngwa, botsitso bo botle ba mohato, kapa tshireletso e tswetseng pele bakeng sa dibaka tse thata, re netefatsa hore ditharollo tse nepahetseng di a fanwa. Ho feta moo, jwalo ka mofani ya ka sehloohong wa ditshebeletso tsa tlhahiso le kopano ya PCB , re fana ka kopanyo e se nang sekoli ya dikheibole tsa RF dikopanong tsa hao tsa elektroniki, ho netefatsa boleng bo hodimo le botshepehi ho pholletsa le potoloho ya bophelo ba sehlahiswa sa hao.

Ho tsetela ho likhoele tsa RF tsa boleng bo holimo ho ka 'na ha kenyelletsa litšenyehelo tse phahameng tsa pele, empa melemo ea nako e telele ha e latoloe—ts'ebetso e phahameng ea motlakase, nako e fokotsehileng ea ho sebetsa, le ts'epo e ntlafalitsoeng ea sistimi. Ka litsamaiso tsa RF tse matlafatsang mefuta e mengata ea lits'ebetso, ho tloha puisanong ea waelese ho ea ho litsamaiso tsa sathelaete le radar, ho khetha khoele e nepahetseng le molekane ea tšepahalang joalo ka Highleap Electronic ho netefatsa hore litsamaiso tsa hau li sebetsa ka botlalo. Ikopanye le rona kajeno ho buisana ka likhoele tsa hau tsa RF le litlhoko tsa kopano ea PCB , 'me re re thuse ho phethahatsa projeke ea hau ka boiphihlelo le ts'ebeletso e sa bapisoeng.

LBH

1. Mefuta e atileng haholo ea likhoele tsa RF ke efe?

Lithapo tse tloaelehileng tsa RF li kenyelletsa lithapo tsa coaxial, twinaxial, triaxial, waveguides, le likhoele tse lutlang. Har'a tsena, likhoele tsa RF coaxial ke tsona tse sebelisoang haholo puisanong e se nang mohala, khaso le lisebelisoa tsa liteko hobane li fana ka ts'ireletso e tsitsitseng le tšireletso e ntle. Bakeng sa lits'ebetso tse ikhethileng, likhoele tsa RF tse tloaelehileng li ka etsoa ho fana ka tahlehelo e tlase kapa botsitso bo ntlafalitsoeng ba mohato.

2. Mokhoa oa ho khetha likhoele tsa RF bakeng sa puisano e se nang mohala?

Ha u khetha lithapo tsa RF coaxial bakeng sa puisano ea waelese, nahana ka lintlha tsa bohlokoa joalo ka mefuta ea maqhubu, tahlehelo ea mats'oao, ts'ebetso ea ts'ireletso, le mofuta oa sehokelo. Bakeng sa marang-rang a sebetsang hantle, mehala ea RF e tahlehelo e tlase e thusa ho boloka botsitso ba matšoao libakeng tse telele. Litsamaisong tse rarahaneng, ho khetha thapo e nang le tšireletso e matla le kopano e nepahetseng ea cable ea RF ho netefatsa ts'ebetso e tšepahalang libakeng tse nang le tšitiso e phahameng.

3. Phapano ke efe lipakeng tsa lithapo tsa coaxial le twinaxial RF?

Lithapo tsa coaxial RF li sebelisa khondara e le 'ngoe e bohareng e pota-potiloeng ke tšireletso, e etsang hore e be e loketseng bakeng sa lisebelisoa tse phahameng le phetisetso ea sebaka se selelele. Ka lehlakoreng le leng, lithapo tsa twinaxial RF li na le li-conductors tse peli tse ka hare tse sothehileng hammoho, tse fanang ka tšireletso e ntle ea lerata 'me hangata li sebelisetsoa ho fetisetsa data ea digital ka lebelo le phahameng. Khetho e ipapisitse le hore na o hloka ho fokotseha ho tlase bakeng sa matšoao a RF kapa phetiso e leka-lekaneng bakeng sa botšepehi ba data.

4. Lintlha tsa tikoloho li ama ts'ebetso ea cable ea RF joang?

Mocheso, mongobo, ho pepeseha ha lik'hemik'hale, le khatello ea mochine li ka ama haholo ho tšoarella le ts'ebetso ea likhoele tsa RF. Ka mohlala, mocheso o phahameng o ka fokotsa mocheso, ha mongobo o ka fokotsa tšireletso. Libakeng tse thata, litharollo tsa lithapo tsa RF tse tloaelehileng tse nang le lijase tse thibelang boemo ba leholimo, ho tiisa mongobo, kapa lisebelisoa tse hananang le lik'hemik'hale li thusa ho boloka ts'epahalo ea nako e telele. Tsela e nepahetseng le ho imolla khatello nakong ea kopano ea cable ea RF le tsona li fokotsa khatello ea kelello.

5. Ke liteko life tse sebelisoang ho netefatsa boleng ba cable ea RF?

Teko ea cable ea RF e bohlokoa ho netefatsa ts'ebetso pele e romelloa. Liteko tse tloaelehileng li kenyelletsa tahlehelo ea ho kenya, tahlehelo ea ho khutla, VSWR, botsitso ba karolo, ts'ebetso ea ts'ireletso, le ts'ebetso ea matla. Bakeng sa lits'ebetso tse bohlokoa haholo, likhoele tsa RF tse tahlehelo e tlase li lekoa ho sebelisoa Vector Network Analyzer (VNA) ho netefatsa hore li fihlela lintlha tse hlokahalang. Liteko tsa khatello ea tikoloho le tsa mochini le tsona li etsoa ho netefatsa ho tšoarella maemong a nnete a lefats'e.