I-Custom Radar PCB Design, Ukukhiqiza kanye Nezinsizakalo Zomhlangano

Esikhathini sokuthuthuka okusheshayo kwezobuchwepheshe, izinhlelo ze-radar ziyisisekelo ezimbonini ezisukela kwezezimoto kanye nezindiza kuya kwezokuxhumana kanye nokuzivikela. Lezi zinhlelo zithembele esicini esibalulekile: i-Radar PCB. I-Radar PCB eklanywe kahle iqinisekisa ukucutshungulwa kwesignali okunembile, ukusebenza okuqinile, kanye nokusebenza okuthembekile ngaphansi kwezimo ezidinga amandla. Lesi sihloko sihlola izisekelo ze-Radar PCB, izingxenye zazo, izinto zokwakha, izinhlelo zokusebenza, kanye nokucatshangelwa kokuklama ukuze kukusize wenze izinqumo ezinolwazi ngamaphrojekthi akho. Kumabhodi e-antenna e-radar e-RO4533 , ukukhethwa kwe-laminate kanye ne-geometry yomqhubi kufanele kuqinisekiswe ndawonye ngaphambi kokuba ukusebenza kwe-antenna kuhlolwe kumasampula enziwe.

Iyini i-Radar PCB?

I-Radar PCB iyibhodi lesekethe elikhethekile elakhelwe ukukhiqiza, ukudlulisa, nokwamukela amasiginali we-radar yamaza aphezulu. Isebenza njengengxenye eyinhloko ezinhlelweni ze-radar, esekela izici ezibalulekile ezifana ne-antenna, i-RF circuitry, nezingxenye zokuhlaziya isignali. Ama-PCB e-radar abalulekile ekusebenzeni kwezinhlelo ze-radar, ezithembele ekuphathweni okunembile kwamasignali amaza aphezulu. Lawa ma-PCB asebenza ngokukhiqiza amasiginali e-radar ngomjikelezo we-RF, ewadlulisela ngothi, futhi athole amasiginali abonisiwe (ama-echoes) ngemva kokushaya into. Lawa ma-echoes abe esecutshungulwa ukuze kutholwe ulwazi olubalulekile, njengendawo yento, isivinini, noma izimo zemvelo.

Kunezinhlobo ezahlukene zama-Radar PCB, kufaka phakathi ama-RF PCB , ama-microwave PCB , nama -millimeter-wave PCB . Lawa aklanyelwe ukusingatha ububanzi bemvamisa ethile kanye nezidingo zokusebenza:

• • Ama-RF PCBs asetshenziselwa amaza ama-microwave aphansi (afinyelela cishe ku-10 GHz) futhi ngokuvamile asetshenziswa kumasistimu e-radar yezimoto noma i-radar yesimo sezulu.
  • Ama-PCB we-microwave sebenza kububanzi obungu-1 GHz ukuya ku-30 ​​GHz, evame ukusetshenziselwa amasistimu e-radar ebanga eliphakathi nendawo ukuya kwelase-aerospace nasezinhlelweni zokuvikela.
  • I-Millimeter-Wave PCBs isebenza kumafrikhwensi angaphezu kuka-30 GHz futhi ibalulekile kumasistimu e-radar athuthukisiwe, njengalawo asetshenziswa ezimotweni ezizimele, izinzwa zezimboni, kanye nokuxhumana kwe-5G.

Leli khono lokuphatha amasignali amaza aphezulu ngendlela efanele lenza i-Radar PCBs ibaluleke kakhulu ezinhlelweni ezidinga ukutholwa okunembayo kanye nokucutshungulwa kwedatha ngesikhathi sangempela. Kusukela kumasistimu okuphepha kwezimoto kanye nokuzulazula kwe-aerospace kuya ekuhlolweni kwezokuvikela nesimo sezulu, ama-Radar PCB abalulekile ekunikezeni amandla amasistimu e-radar athembekile, asebenza kahle kakhulu. Idizayini yabo iqinisekisa ukuthi izinhlelo ze-radar zingasebenza ngokunemba nokusebenza kahle, ngisho nasezindaweni ezidinga kakhulu, okwenza ama-Radar PCB abe ubuchwepheshe obuyisisekelo ezimbonini lapho ukuthatha izinqumo ngesikhathi sangempela kubalulekile.

Izingxenye Eziyinhloko ze-Radar PCB

I-Radar PCB iyingxenye ebalulekile ezinhlelweni ze-radar, evumela ukudluliswa okunembayo, ukwamukela, nokucubungula amasignali. Ifinyelela lokhu kusebenza ngokuhlanganiswa kwezakhi ezimbalwa ezibalulekile:

• • Umthumeli: Ikhulisa isignali ye-radar ekhiqizwa amajeneretha e-waveform kumaleveli wamandla aphezulu, iqinisekisa ukuthi isignali ingahamba amabanga amade.
  • Umamukeli: Izinqubo zibonise amasiginali (ama-echoes) ngokuwakhulisa, ukuwahlunga, nokuwehlisa ukuze kukhishwe idatha enengqondo, njengebanga, isivinini, nokutholwa kwento.
  • Antenna: Ithumela isignali ye-radar endaweni bese ithola ama-echoes abonisiwe. Izinhlobo ezingukhiye zifaka izibonisi ze-parabolic, amalungu afanayo afakwe ngezigaba (alawuleka ngogesi), kanye namalungu afanayo ahleliwe amasistimu ahlangene.
  • I-Duplexer: Isebenza njengeswishi, ivumela uthi ukuthi lushintshane phakathi kwamamodi okudlulisela nawokwamukela ngaphandle kokulimaza isamukeli esibucayi.
  • Amagagasi: Imigqa yokudlulisela ephethe amasignali amaza aphezulu phakathi kwesidluliseli, i-antenna, nomamukeli ngokulahleka okuncane.
  • I-Threshold Decision Circuit: Iqhathanisa amandla esignali acutshunguliwe ngokumelene nomkhawulo ochazwe kusengaphambili ukuze kunqunywe ukuthi ithagethi evumelekile ikhona noma uma isignali iwumsindo nje.

Lezi zingxenye zakha isisekelo se-Radar PCB, esebenza ndawonye ukuze kuqinisekiswe ukugeleza kwesignali okungenamthungo, ukunemba, nokwethembeka ezinhlelweni ze-radar. Ukuhlanganiswa kwalezi zingxenye kwenza amasistimu e-radar enze imisebenzi ebalulekile njengokutholwa kwezinto, ukukalwa kobubanzi, nokubalwa kwesivinini. Kungakhathaliseki ukuthi isetshenziswa ezinhlelweni zokuphepha kwezimoto, ukulandelela kwezempi, noma ukuzulazula kwe-aerospace, i-Radar PCB eklanywe kahle iqinisekisa ukusebenza okuphezulu nokunemba kokusebenza.

Izici ezibalulekile zama-PCB eRadar

Ama-PCB e-radar abalulekile ukuze enze amasistimu e-radar emvamisa ephezulu asebenze ngokwethembeka nangempumelelo. Lawa mabhodi esekethe akhethekile aklanyelwe ukuhlangabezana nezidingo zokusebenza ezinzima, njengokuphatha amaza e-microwave nama-millimeter-wave, ukuqinisekisa ukuzinza kwe-thermal, nokusebenza ezimeni ezinzima. Ngezansi ukubuka konke kochwepheshe kanye nemininingwane yezici ezibalulekile ezichaza i-Radar PCB esebenza kahle kakhulu.

1. Ukusebenza kwe-High-Frequency

Izinhlelo ze-radar zisebenza kuma-frequency asukela kuma-microwave band (isb., 24 GHz) kuya kuma-millimeter-wave band (isb., 77 GHz nangaphezulu). Ama-frequency aphezulu anjalo abalulekile ezinhlelweni zokusebenza ezifana nokutholwa kokushayisana kwezimoto, i-weather radar, kanye nezinhlelo zokuzivikela. Ukuze kugcinwe amandla esignali nokucaca, ama-Radar PCB kumele anciphise ukulahleka kwesignali kanye nokuphazamiseka kwe-electromagnetic (EMI). Lokhu kufezwa ngokusebenzisa izinto ezikhethekile zokulahlekelwa okuncane njengeRogers RO4003C, ama-laminate asekelwe ku-PTFE, kanye nezinye izinto ezisetshenziswa kakhulu. Ngaphezu kwalokho, izindlela zesignali ezimfushane neziqondile zifakiwe ekwakhiweni ukuze kuncishiswe ukulahleka kokufakwa nokuqinisekisa ubuqotho besignali.

2. Impedance elawulwayo

Ukulawulwa kokuphazamiseka kubalulekile kumasekhethi e-RF kanye ne-microwave radar ukuze kuqinisekiswe ukusakazwa kwesignali okushelelayo kuyo yonke i-PCB. Ngaphandle kokufanisa okunembayo kwe-impedance, amasignali e-radar angahlupheka ngenxa yokubonakala, ukulahlekelwa, nokuhlanekezela, okonakalisayo kwesistimu. Ama-PCB e-Radar afinyelela ukuvimbela okulawulwayo ngokusebenzisa:

• • Ubukhulu bokulandela umkhondo obulungiselelwe (ububanzi, ukujiya, isikhala) ngokusekelwe ku-dielectric constant ye-substrate (Dk).
  • Idizayini yesitaki ecophelelayo ukuze ulawule i-impedance ngaphakathi kwamabhodi anezingqimba eziningi ngokusebenzisa izindiza eziphansi nokuvikela.
  • Amathuluzi okulingisa, njenge-HFSS noma i-CST Microwave Studio, ukuze abikezele futhi aqinisekise ukuziphatha kokuphazamiseka ngaphambi kokwenziwa.

Ukulawula okunembe kwe-impedance kubalulekile ezinhlelweni ezifana nezinzwa ze-radar yezimoto nezinhlelo zokuvikela, lapho ukuthembeka kwesignali kuthinta ngokuqondile ukuphepha nokusebenza.

3. Ukuphathwa Okushisayo

Amasistimu e-radar, ikakhulukazi ama-radar transmitters anamandla amakhulu, akhiqiza ukushisa okukhulu phakathi nokusebenza. Ngaphandle kokuphatha okushisayo okufanele, ukushisa okudlulele kungalulaza izingxenye, kufinyeze ubude bokuphila, futhi kufake engozini ukusebenza. Ama-PCB eRadar asebenzisa amasu amaningana okulawula ukushisa, okuhlanganisa:

• • Thermal vias: Khipha ukushisa kude nezingxenye ezibekwe phezulu kuya ezendlalelo zokulahla ukushisa zangaphakathi noma zangaphandle.
  • I-Metal-core PCBs (MCPCBs): I-aluminium noma i-copper cores ithuthukisa ukuqhutshwa kokushisa kwezinhlelo zokusebenza ezishisa kakhulu.
  • Ama-substrates aphezulu e-thermal-conductivity, njenge-PTFE egcwele i-ceramic, idlulisa kahle ukushisa kude nezindawo ezinamandla amakhulu.
  • Amasinki okushisa nezisakaza: Nikeza izixazululo zokupholisa zangaphandle zezikhulisamandla kanye nezingxenye ze-RF.

Ukuphatha okushisayo okusebenzayo kuqinisekisa ukusebenza okuzinzile nokuthembeka, ikakhulukazi ezinhlelweni eziqhubekayo, ezinomthwalo omkhulu njenge-radar yokulawula ukuhamba kwezindiza kanye nezinhlelo zokuzwa zezimboni.

4. Ukuqina Ezimweni Ezinzima

Ama-PCB e-radar avamise ukuthunyelwa ezindaweni ezinezinga lokushisa elidlulele, umswakama, ukudlidliza, nokuchayeka kwamakhemikhali. Kuzinhlelo zokusebenza ezifana ne-aerospace, i-radar yezempi, namasistimu ezimoto, ukuqina kubaluleke kakhulu. Ukuqinisekisa ukwethembeka kwesikhathi eside, ama-radar PCB aklanywe ngalezi:

• • Ukuzinza kwezinga lokushisa eliphezulu: Izinto ezisetshenziswayo ezinezinga lokushisa eliphezulu le-Glass Transition (Tg) zivimbela ukungqubuzana noma ukonakala ngaphansi kwengcindezi yokushisa.
  • Ukumelana nomswakama: Ama-substrates anomswakama ophansi, njengama-laminates asekelwe ku-PTFE, avimbela ukulahlekelwa kwesignali ezimeni ezinomswakama.
  • Ukuqiniswa kwemishini: Izendlalelo zethusi eziwugqinsi nama-substrates aqinile athuthukisa ukumelana nokudlidliza nokucindezeleka komshini.
  • Izingubo zokuzivikela: Izembatho ezivumelanayo, njenge-polyurethane noma i-silicone, zivikela ama-PCB kumswakama, uthuli, nama-ejenti abolayo.

Lokhu kwakhiwa okumazombezombe kuvumela ama-PCB e-Radar ukuthi asebenze ngokuthembekile ezinhlelweni ezibucayi njengezinhlelo ze-radar zasolwandle, i-ADAS yezimoto, nezinhlelo zokulandela umkhondo wezokuvikela.

5. Ukulahleka Kwe-Dielectric Ephansi

Amasistimu e-radar ancike ekudluliselweni okunembile nokwamukela amasignali kumafrikhwensi aphezulu kakhulu. Ukulahleka kwe-Dielectric, okwenzeka njengoba amasiginali asakazeka nge-PCB substrate, kunganciphisa amandla esignali futhi kuphazamise ukusebenza kwe-radar. Ukulwa nalokhu, ama-Radar PCB asebenzisa izinto ezisetshenziswayo:

• • I-Low Dielectric Constant (Dk): Ama-substrate afana ne-Rogers RO4350B kanye ne-PTFE aqinisekisa ukubambezeleka okuncane kwesignali kanye nokuphambuka kwesigaba.
  • I-Low Dissipation Factor (Df): I-Df ephansi inciphisa ukulahleka kwamandla, igcina ukucaca kwesignali namandla.
  • ukungaguquguquki: Izakhiwo ze-dielectric ezifanayo kuyo yonke i-PCB zivimbela ukungafani kwe-impedance nokuhluka kwesigaba.

Kuzinhlelo ze-radar zamagagasi amamilimitha asebenza ku-77 GHz noma ngaphezulu, ukulahleka kwe-dielectric okuphansi kubaluleke kakhulu ekutholeni ukutholwa kwebanga elide, ukuthwebula isithombe sokucaca okuphezulu, nokucubungula isignali ngokushesha.

6. Idizayini Enembayo Yezicelo Zemvamisa Ephakeme

Ukuzuza ukusebenza okuphezulu kuma-PCB e-Radar kudinga ubunjiniyela obunembayo kanye namasu okuklama athuthukile. Abaklami kufanele bathuthukise ukwakheka kwe-PCB kumasiginali we-RF yemvamisa ephezulu kuyilapho benciphisa imiphumela yezinambuzane, umsindo, nokulahlekelwa. Okucatshangelwayo okubalulekile kuhlanganisa:

• • Ukuthuthukisa Isitaki: Ukubekwa kwesendlalelo esibalulekile sesignali, amandla, nezindiza eziphansi ukuze kuthuthukiswe ukuhlukaniswa nokunciphisa i-crosstalk.
  • Ukuphathwa Kwesiginali Ubuqotho: Kusetshenziswa isivikelo se-RF, izindiza ezingaphansi, nemikhondo ye-impedance elawulwayo ukuze kugcinwe ukucaca kwesignali.
  • Izindlela Ezifushane Zokudlulisa: Ukunciphisa ubude bokulandelela kanye nokuqinisekisa umzila ohlanzekile kunciphisa ukubambezeleka kwesigaba nokulahlekelwa kwesignali.
  • Ukulingisa nokuhlola: Ukulingisa okuthuthukisiwe kwe-electromagnetic nokuhlolwa komhlaba wangempela kuqinisekisa ukusebenza kwe-PCB ngaphambi kokuthunyelwa.

Ukunemba ekuklanyweni kuqinisekisa ukuthi ama-Radar PCBs angakwazi ukuhlangabezana nezidingo zokusebenza ezinzima zamasistimu e-radar ezimotweni, emkhathini, nasezimbonini zokusebenza.

Ama-PCB e-radar aklanywe ngobunono ukuze asingathe izinselelo zokusebenza kwe-high-frequency, ukuphathwa kwezinga lokushisa, kanye nezindawo ezinokhahlo kuyilapho kugcinwa ukungasebenzi okulawulwayo kanye nokulahlekelwa okuphansi kwe-dielectric. Lezi zici zizenza zibaluleke kakhulu ezinhlelweni ezibucayi ezifana nezinhlelo zokushayela ezizimele, ukulawula kwethrafikhi yendiza, ukubhekwa kwezempi, kanye ne-radar yesimo sezulu. Ngokusebenzisa izinto ezithuthukisiwe, izixazululo ezishisayo, nezindlela zokuklama ezinembayo, ama-Radar PCB aqinisekisa ukwethembeka okukhethekile, ukunemba, nokusebenza ezimeni ezidinga kakhulu.

Izinhlobo zamaRadar PCB

Amamojula eradar ezimoto nezimboni angabuyekezwa futhi mayelana nokukhiqizwa kwe-RF laminate PCB okukhethekile noma ukwakhiwa kwe-ITEQ IT-88GMW PCB lapho kuchazwa uhlelo lwemvamisa, isabelomali sokulahlekelwa, kanye nokwakhiwa kokukhiqiza.

Amasistimu e-radar ahlukene adinga izinhlobo ezithile zamaRadar PCB, ngalinye lenzelwe izinhlelo zokusebenza ezihlukile:

1. I-Doppler Radar PCB
   Isebenzisa umphumela we-Doppler ukukala isivinini sezinto ezihambayo. Okujwayelekile kuma-radar ezimoto namasistimu okuthola isivinini.
2. I-Monopulse Radar PCB
   Ikala indawo okuqondiwe kuyo ngokuqhathanisa izici zesignali ngaphakathi kokushaya kwenhliziyo okukodwa. Ngokuvamile isetshenziselwa ukulandela ngomkhondo nokunemba kwamasistimu.
3. I-Passive Radar PCB
   Ithola okuqondiwe kusetshenziswa amasiginali e-RF azungezile, iyenze ilungele izinhlelo zokusebenza ezidinga ukukhishwa okuncane okusebenzayo.
4. Isimo sezulu Radar PCB
   Ihlaziya imvula nezimo zomoya kusetshenziswa amasiginali wefrikhwensi yomsakazo, ngokuvamile ahlanganiswe nobuchwepheshe be-Doppler ukuze kukale isivinini somoya.
5. I-Pulsed Radar PCB
   Ikhipha ama-pulses aphezulu futhi ibala indawo yento ngokusekelwe ekubambezelekeni kwesikhathi kwamasignali abonisiwe. Isetshenziswa ezinhlelweni ezidinga ibanga eliqondile nokutholwa kokunyakaza.

Ukucatshangelwa Kwedizayini yama-Radar PCB

Ukuklama ama-PCB eRadar asebenza kahle kudinga ukuhlela ngokucophelela nokunaka imininingwane ukuze kuhlangatshezwane nezidingo eziqinile zezinhlelo zesimanje ze-radar. Ama-PCB e-radar ngokuvamile asebenza kuma-microwave nama-millimeter-wave frequencies futhi ngokuvamile asetshenziswa ezindaweni eziyinselele. Ukuqinisekisa ukusebenza okuthembekile nokusebenza kahle, izici ezibalulekile ezifana nobuqotho besignali, ukuzinza kokushisa, nokuhlukaniswa komsindo kufanele kulungiselelwe ngokucophelela. Lesi sihloko sinikeza ukubuka konke okubanzi kwezici zedizayini ezibalulekile zokuzuza ama-Radar PCB ekhwalithi ephezulu aletha ukunemba, ukusebenza kahle, nokuqina.

1. Ukulawulwa Kwe-Impedans Routing

Ama-PCB e-Radar asebenza ngamaza aphezulu, lapho ngisho nokungafani okuncane kwe-impedance kungaholela ekuboniseni isignali, ukuncipha, nokulahlekelwa ubuqotho besignali. Ukulawulwa kwe-impedance routing kubalulekile ukuze kuqinisekiswe ukuthi amasiginali ahamba ngemikhondo ye-PCB enokonakala okuncane. Ukuze kuzuzwe lokhu, kufanele kucatshangelwe izici eziningana zokuklama, njenge-trace geometry, ukukhethwa kwempahla ye-dielectric, nokwenza kahle kwesitaki sesendlalelo. Ububanzi bokulandelela, ukujiya, nesikhala kufanele kubalwe ngokunembile ngokusekelwe kubuningi bokusebenza nezici ze-dielectric. Ukwengeza, amathuluzi okulingisa emvamisa ephezulu njenge-HFSS ne-CST Microwave Studio abalulekile ekuqinisekiseni umklamo. Ukulawulwa kwe-impedance routing kubalulekile ekugcineni amasiginali ahlanzekile futhi angahlanekezeli ezinhlelweni ze-radar, ukuqinisekisa ukusebenza okuthembekile kuzo zonke izinhlelo zokusebenza ezifana ne-automotive radar kanye nezinhlelo ze-aerospace.

2. Ukuphathwa Okushisayo

Amasistimu e-radar, ikakhulukazi amandla aphezulu njengama-radar transmitters nama-antenna ahlelwe ngezigaba, akhiqiza ukushisa okukhulu. Ngaphandle kokuphathwa kokushisa okwanele, ukushisa okudlulele kungabangela ukulimala kwengxenye, kunciphise ukuphila kwe-PCB, futhi kwehlise ukusebenza okuphelele. Amasu okuphatha okushisayo asebenzayo ahlanganisa ukusetshenziswa kwe-thermal vias, i-metal core PCBs (MCPCBs), kanye nezingqimba zethusi eziqinile. I-Thermal vias isiza ukudlulisa ukushisa kusuka ezingxenyeni ezibamba amandla kuya izendlalelo zangaphakathi noma osinki bokushisa bangaphandle, kuyilapho ama-MCPCB athuthukisa ukunqanyulwa kokushisa ngokuhlanganisa umongo wensimbi. Ukwengeza, ukusebenzisa izinto ezine-conductivity ephezulu ye-thermal, njengezinhlanganisela ze-PTFE ezigcwele i-ceramic, kusiza ekulawuleni ukushisa okuphumelelayo. Ukuphatha okushisayo okufanelekile kuqinisekisa ukwethembeka kwesikhathi eside, kunciphisa ukukhukhuleka kokusebenza ngenxa yokuguquguquka kwezinga lokushisa, futhi kuvikela izingxenye ezibucayi ekushiseni ngokweqile ngesikhathi sokusebenza okuqhubekayo.

3. Ukulahlekelwa Kwesiginali

Ukulahlekelwa kwesignali, noma ukuncishiswa, kuba yinto ekhathazayo kakhulu kumaza e-microwave nama-millimeter-wave, lapho ngisho nokungapheleli okuncane kungase kuthuntubeze ukusebenza kwe-radar. Ukunciphisa ukulahlekelwa kwesignali kubalulekile ukuze kugcinwe amandla esignali, ukucaca, nobubanzi. Amasu abalulekile okunciphisa ukulahlekelwa kwesignali ahlanganisa ukusebenzisa izindlela ezimfushane, eziqondile zomzila we-high-frequency traces, ukukhetha ukulahlekelwa okuphansi kwe-dielectric materials (isb, ama-laminates asekelwe ku-PTFE), nokugwema imiphumela ye-parasitic efana nokugoba okungadingekile, i-vias, nama-crossovers. Indawo yethusi ebushelelezi nayo ibalulekile ekwehliseni ukulahleka kwemiphumela yesikhumba, egqama kakhulu kumafrikhwensi aphezulu. Ngokunciphisa ukulahleka kwesignali, amasistimu e-radar angakwazi ukuthola ibanga elingcono lokutholwa, ukulungiswa okuthuthukisiwe, nokusebenza okuphezulu ezinhlelweni ezifana ne-radar yesimo sezulu namasistimu okushayela ngokuzenzakalelayo.

4. Ukuvikela kanye Nokuzihlukanisa

Ama-PCB erada ngokuvamile asebenza ezindaweni ezinokuphazamiseka okuphawulekayo kozibuthe kagesi (EMI) okungaphazamisa amasignali amaza aphezulu. Ukuvikela okufanele nokuhlukaniswa kuyadingeka ukuze kuqinisekiswe ubuqotho besignali futhi kuvimbele ukucekelwa phansi komsindo, i-EMI, kanye ne-crosstalk. Amasu okuvikela ahlanganisa ukusebenzisa izindiza eziphansi eziqhubekayo ngaphansi kwezingqimba zesignali ye-RF, ukwengeza izihlangu zethusi noma izivalo zensimbi ezizungeze izingxenye ezibucayi, nokusebenzisa ngothango ukuqukatha izinkambu ze-electromagnetic. Ukwengeza, ukuhlukanisa i-RF kanye namasekhethi edijithali kunciphisa ngokomzimba ingozi yokuphazamiseka, kuyilapho ukuphambana kwemizila ehlukene kanye nezindlela zokubuya ezilawulwayo kunciphisa nokuba sengozini yomsindo. Ukuvikela okuphumelelayo nokuhlukaniswa kuqinisekisa ukuthi amasistimu e-radar aletha ukusebenza okuthembekile, okungenaziphazamiso, ngisho nasezindaweni ezinomsindo noma ezinamandla amakhulu.

5. Ukuthuthukiswa Kwesitaki Sezingxenye Eziningi

Amasistimu e-radar esimanje ngokuvamile adinga ama-PCB anezingqimba eziningi ukuze amukele ukujikeleza okuyinkimbinkimbi, ukusatshalaliswa kwamandla, kanye nezici zefomu elihlangene. Ukuthuthukisa isitaki sezendlalelo eziningi kubalulekile ekulinganiseni ubuqotho besignali, ukuzihlukanisa, nokuphathwa kokushisa. Ukucatshangelwa okubalulekile kufaka phakathi ukubeka izingqimba zesignali ye-RF ngobuchule phakathi kwezindiza eziphansi ukuze kuncishiswe i-EMI kanye ne-crosstalk, ukulawula ukushuba kwe-dielectric ukuze kufaniswe i-impedance enembile, kanye nokuqinisekisa amandla afanele nokusatshalaliswa komhlaba ukuze kuncishiswe umsindo futhi kuthuthukiswe ukuzinza. Ukwengeza, ukuhlanganisa izingqimba zokuphatha ezishisayo, njengama-metal cores, kusiza ukuqeda ukushisa ngenkathi kugcinwa ukuzinza kwemishini. I-stack-up ye-multilayer eklanywe kahle yenza i-radar PCB ingene ngaphakathi kwamamojula ahlangene we-radar futhi igcine ubuqotho besignali kuyilapho inciphisa ukuphazamiseka kozibuthe kagesi.

6. Ukukhethwa Kwezinto Ezisetshenziswayo zamafrikhwensi aphezulu

Kumaphrojekthi e-mmWave, izinto ze-PCB ze-radar ezingama-77 GHz kumele zikhethwe kanye ne-stackup, iphrofayili yethusi, i-geometry ye-antenna, kanye nokubekezelelana kokukhiqiza kunokuba kuthathwe egameni le-laminate kuphela.

Ukukhetha izinto ezifanele zama-radar PCB kubalulekile ukubhekana nezinselele ezifana nokulahlekelwa yisignali, ukulawulwa kwe-impedance, kanye nokusebenza kokushisa. Izinto ezifana nama-laminate asekelwe ku-PTFE kanye nama-Rogers high-frequency substrates (isb., RO4350B, RO3000) zinikeza ukuzinza okuhle kakhulu kwe-dielectric kanye nezici zokusaphazeka okuphansi, okwenza kube kuhle kakhulu ekusetshenzisweni kwe-high-frequency. Izinto ezigcwele i-ceramic zithuthukisa ukuhanjiswa kokushisa ngenkathi zinciphisa ukulahleka kwesignali, kanye ne-copper foil ephansi inciphisa ukulahleka komphumela wesikhumba kuma-frequency aphezulu. Ukukhetha okufanele kwezinto kuqinisekisa ukuthi ama-radar PCB ahlangabezana nezidingo ezithile zama-frequency ngenkathi elinganisa izindleko, ukusebenza kokushisa, kanye nokuqina. Ukukhetha izinto kuthinta ngqo ukusebenza okuphelele, ukuthembeka, kanye nokuphila kwesikhathi kwezinhlelo ze-radar.

Ukuklama i-Radar PCB esebenza kahle kakhulu kuhilela ukubhekana nezinto eziningi ezibalulekile, okuhlanganisa umzila olawulwayo we-impedance, ukuphathwa okushisayo, ukuncishiswa kokulahlekelwa kwesignali, nokuvikela, kuyilapho kulungiselelwa ukupakishwa kwe-multilayer nokukhetha izinto ezifanele. Ngokuphatha ngokucophelela lezi zici zokuklama, onjiniyela bangafinyelela ubuqotho besignali obuphakeme, ukuphazamiseka okuncane, nokusebenza okungaguquki. Lokhu kuqinisekisa ukuthi amasistimu e-radar asebenza ngokuthembekile kuzo zonke izinhlelo zokusebenza ezinzima, njenge-ADAS yezimoto, ukuzulazula kwe-aerospace, ukuqapha isimo sezulu, ne-radar yokuvikela. I-Radar PCB eklanywe kahle iyisisekelo sokuthuthukisa isizukulwane esilandelayo sobuchwepheshe be-radar obunembayo, ehlinzeka ngokwethembeka nokusebenza okudingekayo kumasistimu e-radar aphambili anamuhla.

Isiphetho

Ama-PCB e-radar awumgogodla wezinhlelo ze-radar zesimanje, ezivumela ukutholwa okunembayo, ukucubungula ngesikhathi sangempela, nokuxhumana okuthembekile kuzo zonke izimboni eziningi. Ikhono labo lokuphatha amasignali amaza aphezulu ngokulahleka okuncane, kuhlanganiswe nokuqina kanye nokuphathwa kwezinga lokushisa okuthuthukisiwe, kuwenza abaluleke kakhulu ezinhlelweni zokusebenza ezifana nokuphepha kwezimoto, ukuzulazula kwe-aerospace, kanye ne-automation yezimboni.

Lapho uklama futhi wenza i-Radar PCB, ukusebenzisana nomkhiqizi we-PCB onolwazi nomethembayo kuqinisekisa ukusebenza okuthuthukisiwe, ukukhethwa kwezinto ezibonakalayo, nokuqinisekiswa kwekhwalithi. Ukutshala imali kuma-PCB e-Radar ekhwalithi ephezulu kuqinisekisa ukwethembeka nokunemba okudingekayo kumasistimu e-radar esizukulwane esilandelayo, kunikeza izimboni amandla ukuze zisebenze ngobuchule, ngokuphepha, nangempumelelo kakhudlwana.