Li-Fi le Optical Communication LED PCBs: High-Speed ​​Light Transmission Solutions

Li-Fi PCB Technology ke eng

Li-Fi PCB e emela motheo oa hardware bakeng sa mekhoa ea puisano e khanyang e bonahalang. Theknoloji ea Light Fidelity e fetisa lintlha ka mehloli ea leseli la LED e feto-fetohang ho tloha ho MHz tse 'maloa ho ea ho feta 1 GHz, e sa bonahaleng mahlong a motho empa e khona ho fana ka khokahanyo ea mohala oa Broadband. Li-Fi PCB e fetola matšoao a data ea motlakase hore e be tlhahiso e fetotsoeng ea optical, e fihlela lebelo le fetang Wi-Fi ea setso ha e ntse e sa sireletseha ho tšitiso ea maqhubu a seea-le-moea.

Boto ea potoloho e hatisitsoeng e kopanya lipotoloho tsa mokhanni oa LED , likarolo tsa modulation ea lebelo le phahameng, le litsamaiso tsa taolo ea mocheso sethaleng se kopaneng. Moralo o nepahetseng oa Li-Fi PCB o boloka botšepehi ba lets'oao nakong eohle ea phetoho ea motlakase ho ea ho optical ha o ntse o laola tlhahiso ea mocheso ho tsoa ts'ebetsong ea ho fetola ka potlako e ka behang boleng ba phetisetso le ts'epo ea likarolo kotsing.

Mesebetsi ea mantlha ea Li-Fi PCB Systems

Pontšo ea Modulation le Mokhanni oa Kopanyo

Li-Fi PCB e hlophisa mokhoa o nepahetseng oa ho feto-fetoha ha matla a tlhahiso ea LED ho kenyelletsa data ea dijithale. Li-circuitry tsa bakhanni li fetola melaetsa ea data hore e be mefuta e fapaneng ea hona joale e tsamaisang li-LED ka lebelo le fihlang maqhubu a gigahertz. Melato e laoloang ea impedance le likarolo tse fokolang tsa likokoana-hloko li boloka botšepehi ba matšoao ho tloha ho modulation IC ho ea ho LED junction.

Thermal Management Architecture

Phallo ea mocheso e arola meralo e sebetsang ea Li-Fi PCB ho litsamaiso tse sa tšepahaleng. Ho feto-fetoha ha maqhubu a phahameng ho hlahisa meroalo ea bohlokoa ea mocheso eo likaroloana tsa tšepe tsa mantlha li sebetsanang le tsona ka aluminium kapa likarolo tsa koporo tse fanang ka 100-200 W/mK thermal conductivity khahlano le FR-4's 0.3 W/mK. Thermal vias le lifofane tse inehetseng tse hasang mocheso li thibela ho phahama ha mocheso oa mateano tse fetolang bolelele ba maqhubu a LED le ho fokotsa modulation bandwidth.

Lintlha tsa bohlokoa tsa moralo oa thermal li kenyelletsa:

• Metal-core substrate kopanyo - Litsi tsa aluminium kapa tsa koporo li fana ka litsela tse tobileng tsa mocheso ho tloha LED ho ea mocheso oa mocheso.
• Leano ka ho beha – Thermal vias amahanya likarolo likarolo ho le dikarolo ka hare tšepe bakeng sa e sebetsang hantle mocheso ho hasana.
• Lifofane tse inehetseng tsa mocheso - Likarolo tsa koporo li aba meroalo ea mocheso libakeng tse pharalletseng ho thibela libaka tse hotspots tsa lehae.

Optical Alignment le Coupling

Li-Fi PCB e boloka boemo bo nepahetseng ba karolo bakeng sa kopanyo ea sistimi ea optical. Ho nepahala ha ho behoa ha LED ka har'a ± 50 micrometers ho tiisa ho lumellana hantle le lilense, li-reflectors, kapa li-interfaces tsa fiber optic tse bōpang le ho tsamaisa lebone la leseli le fetotsoeng bakeng sa katleho e kholo ea phetisetso.

Lintlha tsa Moqapi bakeng sa Li-Fi PCB

Moralo oa Tsela ea Letšoao la Maqhubu a Phahameng

Lithapo tsa phetiso ea Li-Fi PCB li hloka hore ho be le tšitiso e laoloang lipakeng tsa 50-75 ohms ho latela lintlha tsa mokhanni. Li-geometri tsa Microstrip kapa stripline li boloka botsitso ba impedance ka bophara bo nepahetseng, botenya ba dielectric, le khetho ea boima ba koporo. Ka li-stubs tse khuts'oane ho feta leqhubu la maqhubu a 1/10, fokotsa likhatiso tse theolang boleng ba ho feto-fetoha ha molumo.

Botšepehi ba sefofane se tlase se ama ka kotloloho ts'ebetso ea Li-Fi PCB. Lifofane tse sa khaotseng tsa litšupiso tse ka tlas'a matšoao a mats'oao li fana ka litsela tsa ho khutla tse nang le tšitiso e tlase ha li ntse li itšireletsa khahlano le tšitiso ea motlakase. Ho roka ka lera ka vias tse thehiloeng ka har'a limilimithara tse 5-10 ho boloka ts'ebetso ea mobu ho pholletsa le likarolo tsa boto.

Khetho ea lintho tse bonahalang bakeng sa li-PCB tsa Optical

Khetho ea substrate e leka-lekanya ts'ebetso ea motlakase le litlhoko tsa mocheso:

• Li-laminates tsa maqhubu a phahameng – laminate e ikhethang e nang le tahlehelo e tlase kapa thepa e tšoanang e nang le tangent ea tahlehelo e ka tlase ho 0.004 ho boleng ba lets'oao la polokelo ea 1 GHz.
• Metal-core substrates - Aluminium IMS kapa liboto tsa koporo-core li fana ka conductivity ea mocheso ka makhetlo a 300-500 ho feta FR-4.
• Lisebelisoa tsa polyimide flex - Ho tsitsisa ha mocheso o phahameng ho ts'ehetsa ts'ebetso ea LED ka holimo ho 150 ° C ha e ntse e nolofalletsa ho kenngoa ka mokhoa o hlophisitsoeng.

Khetho ea ho qetela ea bokaholimo e ama kopano le ho ts'epahala. ENIG e fana ka sebaka se setle sa ho rekisoa le ho kopanya lithapo tse nang le khanyetso e phahameng ea oxidation. OSP e qeta ho fokotsa litšenyehelo empa e hloka polokelo e laoloang le nako ea kopano.

Lera Stackup Configuration

Li-stackups tsa Li-Fi PCB tse ngata-ngata li fana ka likarolo tse ka hare ho lipontšo tsa litsela tse nang le lifofane tse fatše. Meralo ea mekhahlelo e mene ho isa ho e tšeletseng hangata e fana ka likarolo tse ka ntle bakeng sa ho kenya likarolo, likarolo tse ka hare bakeng sa tsamaiso e laoloang ea impedance, le lifofane tse inehetseng bakeng sa kabo ea matla le tsamaiso ea mocheso.

Mefuta ea Li-Fi PCB Configuration

Maboto a Phatlalatso ea Boitsebiso ba Lebelo le Phahameng

Meralo ea Li-Fi PCB ea ts'ebetso e le 'ngoe e ntlafatsa bandwidth e phahameng. Liboto tsena li kopanya li-driver tsa modulation tse tšehetsang lebelo la ho fetoha ho feta 100 MHz ka liphutheloana tsa LED tse nang le matla a tlase. Maano a moralo a fokotsa bolelele ba ho latellana lipakeng tsa tlhahiso ea mokhanni le anode ea LED, a fokotsa inductance ea parasitic e fokotsang nako ea ho phahama le maqhubu a phahameng a ho feto-fetoha ha maemo.

Meetso ea Bidirectional Transceiver

Likopano tsa Li-Fi PCB tsa duplex tse felletseng li kopanya phetisetso le ho amohela mesebetsi ho substrate e tloaelehileng. Li-Photodetector arrays li lula libakeng tse arohaneng tsa boto tse nang le li-circuits tsa amplification tse ikhethileng tse arohaneng le bakhanni ba matla a phahameng a LED. Lifofane tsa fatše tse arohaneng le litsela tsa ho lebela li thibela ho kopana ha optical crosstalk le motlakase pakeng tsa mechine ea phetisetso le ea ho amohela.

Hybrid Lighting-Communication Platforms

Li-PCB tse nang le merero e 'meli li kopanya taolo ea ho bonesa le phetiso ea data. Meralo ena e leka-lekanya DC bias ea hajoale bakeng sa tlhahiso ea leseli khahlano le botebo ba ho feto-fetoha ha AC bakeng sa bandwidth ea puisano. Li-circuits tsa dimming tse kopaneng li lokisa boemo ba mabone le boholo ba modulation ho boloka litefiso tsa data tse sa fetoheng ho latela litlhoko tse fapaneng tsa khanya.

Mathata a ho Hlahisa Tlhahisong ea Li-Fi PCB

Litlhoko tsa Kopano e nepahetseng

Kopano ea Li-Fi PCB e hloka taolo e matla ea ho beoa bakeng sa likarolo tsa optical. Sistimi e tataisoang ke pono ea ho khetha le ho beha sebaka e fihlela ± 25 micrometer ho nepahala hoa bohlokoa bakeng sa ho tsamaisana ha LED-to-lens. Tlhahlobo ea X-ray e netefatsa boleng bo kopanetsoeng ba solder tlas'a liphahlo tsa mocheso tsa LED moo lintho tse se nang letho li tlamehang ho lula li le ka tlase ho 25% ho netefatsa hore mocheso o fetisetsoa ka ho lekaneng.

Li-parameter tsa bohlokoa tsa kopano li kenyelletsa:

• Mamello ea ho beha likarolo - Boemo ba LED le photodetector ka har'a ± 50 micrometers bo boloka ho lumellana ha optical.
• Taolo ea lefeela ea solder - Thermal pad voiding ka tlase ho 25% e netefatsa hore mocheso o sebetsa hantle ho substrate.
• Ntlafatso ea boemo bo bocha - Lithapo tsa mocheso li sireletsa likaroloana tsa mahlo ha li ntse li fumana manonyeletso a tšepahalang a solder.

Ngoliso ea Lera le ka Theknoloji

Ho etsoa ha Li-Fi PCB tse ngata-ngata ho hloka hore motho a ngolisoe ka har'a ± 75 micrometer. Ho se tsamaisane hantle ho sitisa meaho e laoloang ea impedance mme ho baka ho se tsoelepele ha liphetoho. Li-microvias tse entsoeng ka laser tse nang le li-diameter tse nyane joalo ka 0.1 mm li nolofalletsa likhokahano tse teteaneng ha li ntse li fokotsa bolelele ba tsela ea matšoao le litlamorao tsa stub.

Ho patoa le ho foufala ka meaho ho fokotsa sebaka sa ho tsamaisa mats'oao empa ho eketsa ho rarahana ha tšebetso. Via plating e tlameha ho fihlella ts'ireletso e ts'oanang ea koporo e fetang botenya ba li-micrometer tse 20 ho netefatsa ho ts'epahala ka ho palama baesekele e futhumetseng le khatello ea maikutlo.

Lisebelisoa tsa Li-Fi PCB Technology

Indoor Wireless Network Infrastructure

Sistimi ea Li-Fi PCB e fetola lisebelisoa tsa mabone ho ba libaka tsa phihlello tsa marang-rang. Liluminaire tse kentsoeng siling tse nang le bokhoni ba Li-Fi li fana ka khokahanyo ea Broadband ka lisebelisoa tsa motlakase tse teng. Phetiso ea optical e kenya data ka har'a libaka tsa 'mele, ka tlhaho e fana ka ts'ireletso ea marang-rang ha e ntse e qoba tšubuhlellano ea maqhubu a radio.

Lits'ebetso tsa khoebo li bonts'a litefiso tsa data tse fetang 100 Mbps ka lits'ebetso tsa Li-Fi PCB. Meaho ea asymmetric e sebelisa leseli le bonahalang bakeng sa phetisetso e tlase ha li-infrared kapa RF uplinks li sebetsana le liteishene tse khutlang tsa bandwidth.

Smart Building le IoT Integration

Ho aha li-automation leverages Li-Fi PCB platforms tse kopanyang taolo ea mabone le marang-rang a sensor. Liluminaire ka bomong li fetoha li-node tse bohlale tse khonang ho beha leihlo tikoloho, ho bona hore na ho na le batho ba kae, le ho fetisoa ha data ka waelese. Li-Fi PCB e kopanya bakhanni ba mabone, li-transceivers tsa puisano, le li-interface tsa sensor ka har'a lintlha tsa compact form tse loketseng matlo a tloaelehileng.

Tikoloho e Ikgethileng ya Dipuisano

Theknoloji ea Li-Fi PCB e sebeletsa lits'ebetso moo tšitiso ea maqhubu a seea-le-moea e bakang matšoenyeho:

• Lits'ebeletso tsa bophelo bo botle - Puisano ea mahlo e felisa tšitiso ea RF le lisebelisoa tsa bongaka tse hlokolosi.
• Likamore tsa lifofane - Li-Fi e tlatsetsa khokahanyo ea onboard ntle le lithibelo tsa maqhubu a seea-le-moea.
• Libaka tsa indasteri - Ho itšireletsa ho tšitiso ea motlakase ho tšehetsa puisano e tšepahalang haufi le mochini o boima.

Litaelo tsa kamoso tsa Li-Fi PCB

Theknoloji e tsoetseng pele ea ho kopanya

Meralo ea PCB ea Li-Fi ea moloko o latelang e kenyelletsa li-array tsa micro-LED le li-chip-on-board tse felisang likokoana-hloko tsa liphutheloana tse fokotsang bandwidth ea hona joale. Ho hokela ka kotloloho ho fokotsa bokhoni ba khokahano ha ka nako e ts'oanang ho tšehetsa maqhubu a modulation a atamelang 5 GHz. PCB e fetoha substrate ea optoelectronic e kopanyang li-photonic waveguides le lipotoloho tsa elektroniki.

Khokahano ea Boemo ba Tsamaiso

Li-platform tsa Li-Fi PCB tsa nakong e tlang li kopanya khanya, puisano, ho utloa le ho sebetsa ka bohale. Meralo e kopantsoeng e kopanya bakhanni ba LED, li-transceivers tse lebelo le phahameng, li-sensor tsa tikoloho, le li-microprocessors ka har'a meralo e kopaneng ea meralo. Li-node tse nang le mesebetsi e mengata li tšehetsa bohlale bo abuoang ka har'a meaho e bohlale ha li ntse li boloka li lumellana le liprothokholo tse tloaelehileng tsa mabone.

fihlela qeto e

Theknoloji ea Li-Fi PCB e theha motheo oa lisebelisoa bakeng sa puisano e se nang mohala ea moloko o latelang. Liboto tse khethehileng tsa potoloho li sebetsana le liphephetso tse ikhethang ts'ebetsong ea mats'oao a maqhubu a phahameng, taolo ea mocheso, le kopanyo ea mahlo ha li ntse li ts'ehetsa lits'ebetso ho tloha marang-rang a kahare ho ea ho litsamaiso tsa IoT. Ha lebelo la ho feto-fetoha ha molumo le ntse le eketseha le tsoelo-pele ea kopanyo ea likaroloana, lipolanete tsa Li-Fi PCB li tla tsoela pele ho holisa bokhoni ba puisano ba mahlo.

Highleap Electronics Li-Fi PCB Bokhoni ba

• e tsoetseng pele Tlhahiso ea PCB tsebo - Liboto tse nang le likarolo tse ngata tse nang le impedance e laoloang, li-substrates tsa tšepe-core, le ngoliso e nepahetseng ea lera bakeng sa lisebelisoa tsa optical tse phahameng haholo.
• sebetsa ka ho nepahetseng Seboka sa PCB ditshebeletso - Ho beoa ha karolo e tataisoang ke pono ka ho nepahala ha ± 25 micrometer, tlhahlobo ea X-ray, le li-profiles tse ntlafalitsoeng tsa reflow bakeng sa likarolo tsa optical.
• Therisano ea moralo - Tšehetso ea boenjiniere bakeng sa ts'ebetso ea botšepehi ba matšoao, maano a tsamaiso ea mocheso, le tlhahlobo ea DFM ho netefatsa tlhahiso e tšepahalang.
• Prototype ho tlhahiso ea molumo - Litekanyo tse feto-fetohang tsa tlhahiso ho tloha ho li-prototype tsa pele ka tlhahiso e phahameng ea boleng bo nang le boleng bo tsitsitseng le phetoho e potlakileng.

Na u se u loketse ho nts'etsapele tharollo ea hau ea Li-Fi PCB? Ikopanye le Highleap Electronics ho buisana ka litlhoko tsa hau tsa projeke ea puisano ea optical. Sehlopha sa rona sa boenjiniere se fana ka tšehetso e felletseng ho tsoa ntlafatsong ea moralo ka tlhahiso e felletseng.