Khafetsa moralo oa pcb e ama kamoo waelese pcb sebetsa ka malapeng a bohlale. E 'ngoe le e' ngoe ea li-wireless pcb e hokahanya limmojule tsa Wi-Fi, Zigbee, le Bluetooth. Baenjiniere ba tseba hore likhetho tsa waelese tsa pcb li ama puisano le mefuta. Li boetse li ama tsela eo li-module li kopanang ka eona. Pcb e se nang mohala e tlameha ho sebetsa le limmojule tse ngata tse se nang mohala. E tlameha hape ho ts'ehetsa lits'ebetso tsa iot. Litlhophiso tse nyane tsa pcb li thusa lisebelisoa tse bohlale ho sebelisa sebaka se fokolang. Baqapi ba tsotella puisano e se nang mohala le ts'ebetso e phahameng. Ba batla hore li-module tsohle li sebetse hantle. Molemo oa waelese pcb moralo emisa tšitiso. E boetse e thusa marang-rang a lisebelisoa hore li sebetse hantle. Lisebelisoa tse bohlale li hloka tharollo ea waelese ea pcb bakeng sa EMI le EMC. Ho ithuta oaelese pcb le moralo oa mojule ho etsa lisebelisoa tse matla. E boetse e thusa ho etsa li-module ho itokisetsa bokamoso.
Theknoloji e se nang mohala
Wi-Fi, Zigbee, Bluetooth Overview
Malapa a bohlale a sebelisa theknoloji e se nang mohala ho hokahanya lisebelisoa. Wi-Fi, Zigbee, le Bluetooth e 'ngoe le e' ngoe e na le likarolo tse ikhethang tsa iot. Wi-Fi e lumella lisebelisoa tse ngata ho romella data kapele ho marang-rang. Zigbee e sebelisa matla a fokolang mme e haha marang-rang a marang-rang bakeng sa li-module tse bohlale. Bluetooth e thusa lisebelisoa ho buisana libakeng tse khutšoane.
Technology | maqhubu Band | Sekhahla sa phetiso ea data | Range | Liketso tse tloaelehileng |
|---|---|---|---|---|
WiFi | 2.4 GHz / 5 GHz | High | Long | Phallela, lik'hamera, iot hubs |
Zigbee | 2.4 GHz | Low | Medium | Li-sensor, mabone, li-control tse bohlale |
Bluetooth | 2.4 GHz | Medium | Short | Liaparo, molumo, linotlolo tse bohlale |
Li-module tsa Wi-Fi tsamaisa data e ngata bakeng sa lisebelisoa tse bohlale. Li-module tsa Zigbee li boloka matla le ho hokahanya lisebelisoa tse ngata hammoho. Li-module tsa Bluetooth li fana ka lihokelo tse matla tsa waelese bakeng sa lisebelisoa tsa motho ka mong le lisebelisoa tse bohlale.
Keletso: Ho sebelisa Wi-Fi, Zigbee, le Bluetooth hammoho ho thusa malapa a bohlale. Ka tsela ena, mats'oao a waelese a fihla libakeng tse ngata mme a ts'ehetsa ts'ebeliso e eketsehileng ea iot.
Li-protocols le Li-Frequency Bands
Li-module tse se nang mohala li sebelisa melao le lihlopha tse fapaneng ho romella data. Wi-Fi e sebetsa ho lihlopha tsa 2.4 GHz le 5 GHz. Zigbee e sebelisa sehlopha sa 2.4 GHz bakeng sa marang-rang a marang-rang. Bluetooth e boetse e sebelisa sehlopha sa 2.4 GHz ho arolelana data e bolokehileng.
Theknoloji e se nang mohala e hloka ho sebetsana le melao e mengata ka nako e le 'ngoe. Limojule tse hahelletsoeng ka mehala li lumella lisebelisoa tse bohlale hore li fetohe lipakeng tsa Wi-Fi, Zigbee le Bluetooth. Sena se etsa hore iot e sebetse hantle. Baenjiniere ba rala li-PCB tse se nang mohala ho emisa mathata a matšoao le ho thusa data ho tsamaea kapele. Ba khetha li-module tse lumellanang le seo lisebelisoa tse bohlale li se hlokang.
Wireless modules ke tsa bohlokoa ho marang-rang a bohlale a lapeng. Li thusa ho romella data kapele le ho boloka likhokahano li le matla. Ts'ehetso ea li-multi-protocol e lumella lisebelisoa tse bohlale ho arolelana data li sebelisa theknoloji e fapaneng e se nang mohala.
Moqapi oa PCB oa maemo a holimo
Melemo ea Multilayer PCB
Baenjiniere ba khetha meralo ea PC ea multilayer bakeng sa lisebelisoa tse bohlale tsa lapeng. Meetso ena e na le matlalo a mane kapa ho feta. E mong le e lera thusa ka qhekella waelese pcb dipeakanyo. Multilayer pcbs molemo bakeng sa pcb e phahameng ea maqhubu litlhoko. Ba etsa hore ho be bonolo ho tsamaisa matshwao a waelese. Likarolo tse ling li lumella baenjiniere ho arola matla le lifofane tse fatše. Karohano ena e fokotsa lerata le ho emisa tšitiso ea puisano e se nang mohala.
Pcb ea multilayer e boetse e boloka sebaka ka lisebelisoa. Lisebelisoa tsa lapeng tse bohlale li hloka liboto tse nyane. Meralo e mengata e lumella baenjiniere ho beha li-module tse ngata tse se nang mohala ho pcb e le 'ngoe. Sena se thusa ntho e 'ngoe le e' ngoe ho sebetsa 'moho le ho etsa hore pcb ea waelese e be matla le ho feta. Lisebelisoa li ka sebelisa Wi-Fi, Zigbee, le Bluetooth kaofela ka nako e le 'ngoe. Multilayer pcbs e boetse e thusa ho laola mocheso. Taolo e ntle ea mocheso e boloka li-module tse se nang mohala li sebetsa nako e telele.
Ela hloko: Multilayer pcbs thusa ho laola litsela lipontšo. Sena se etsa hore waelese e sebetse hantle le ho thibela matshwao ho lahleha.
Impedance le Pontšo ea Botšepehi
Taolo ea impedance ke ea bohlokoa haholo ka moralo o phahameng oa maqhubu a pcb. Mongolo o mong le o mong oa pcb o tlameha ho ts'oana le ho senyeha ha mojule oa waelese. Haeba impedance e sa tsamaisane, lets'oao le ka khutla. Sena se baka tahlehelo mme se fokolisa puisano e se nang mohala.
Botšepehi ba pontšo bo bolela ho boloka matšoao a le matla a bile a hlakile. Baenjiniere ba sebelisa mekhoa e khethehileng ho thibela matšoao ho tšela kapa ho tsoakana. Li boloka mesaletsa e mekhutšoanyane ebile e otlolohile. Sena se thusa waelese pcb romela le ho fumana ya data ntle le liphoso. Botšepehi bo botle ba matšoao bo bolela hore mojule oa mohala o ka bua le lisebelisoa tse ling ntle le bothata.
Tafole ke ena e nang le mekhoa ea ho ntlafatsa boleng ba matšoao:
Method | Rua Molemo |
|---|---|
Impedans e laoloang | E fokotsa ho tlola ha lets'oao |
Bolelele bo bokhutšoane ba mohlala | E fokotsa tahlehelo ea matšoao |
Theko e nepahetseng | E emisa lerata le sa batleheng |
Ho itšireletsa | E thibela tšitiso ea kantle |
Puisano e se nang mohala e hloka matshwao a matla. Baenjiniere ba leka pcb ho etsa bonnete ba hore matšoao a lula a sireletsehile. Ba sebelisa lisebelisoa ho hlahloba tahlehelo ea lets'oao le ho lokisa mathata pele ba etsa pcb ea ho qetela ea waelese.
Lintlha tsa EMI/EMC
EMI e bolela ho kena-kenana le motlakase. EMC e emetse ho lumellana ha motlakase. Ka bobeli ke mathata a maholo ka moralo oa waelese oa pcb. EMI ka tsoa elektronike tse ling kapa esita le ho tswa ho pcb tšoanang. EMI e ngata haholo e ka thibela matšoao a se nang mohala kapa ea baka liphoso.
Baenjiniere ba sebelisa maqheka ho theola EMI. Ba eketsa lifofane fatše ka pcb. Lifofane tsena li ntša matšoao a mabe. Ba boetse ba sebelisa tšireletso ho sireletsa likarolo tsa bohlokoa tsa pcb ea waelese. Ho beha likarolo ka hloko le hona hoa thusa. Ho boloka likarolo tse lerata hole le li-module tsa waelese ho etsa hore puisano e se nang mohala e be matla.
Keletso: Kamehla hlahloba pcb ea waelese bakeng sa EMI le EMC pele u e sebelisa ka lisebelisoa tse bohlale tsa lapeng. Teko ena e thusa ho emisa mathata ka matshwao a waelese hamorao.
Lisebelisoa tsa lapeng tse bohlale li hloka puisano e matla ea waelese. Molemo EMI le EMC moralo boloka waelese pcb sebetsa hantle. E boetse e thusa sesebelisoa ho feta liteko tsa polokeho le ho sebetsa malapeng a mangata.
Khokahano ea Zigbee le Antenna
Zigbee e sebelisa sehlopha sa 2.4 GHz. E lumella lisebelisoa tsa lapeng tse bohlale ho buisana. Baenjiniere ba bangata ba khetha zigbee hobane ha e sebelise matla a mangata. Sena se thusa li-sensor le mabone ho tšoarella nako e telele. Zigbee e ka etsa marang-rang a marang-rang. Mojule o mong le o mong oa zigbee o ka romella melaetsa ho li-module tse ling. Marang-rang a marang-rang a lumella matšoao ho fihla likarolong tsohle tsa ntlo. Moralo oa Zigbee o leka ho boloka matla le ho boloka likhokahano li le matla.
Mefuta ea Antenna ea PCB
Lisebelisoa tsa lapeng tse bohlale li sebelisa li-antenna tse peli tse kholo tse nang le zigbee. Ea pele ke antenna ea PCB. Baenjiniere ba beha antenna ena hantle holim'a boto ea potoloho. Liantenna tsa PCB li nyane ebile li bitsa chelete e nyane. Li sebetsa hantle ka lisebelisoa tse nyane tsa zigbee. Ea bobeli ke antenna ea omnidirectional. Antenna ena e hlahella ka ntle ho sesebelisoa. E romela melaetsa ka nqa tsohle. Li-antenna tsa Omnidirectional li ka fa li-module tsa zigbee sebaka se selelele.
Mofuta oa Antenna | Size | ditjeho | Range | Sebelisa Nako |
|---|---|---|---|---|
Antenna ea PCB | Nyane haholo | Low | Medium | Lisebelisoa tsa zigbee tse kopaneng |
Moeli o moholo | E kholoanyane | Holimo | Nako e telele | Liheke, li-hubs |
Tlhokomeliso: Li-antenna tsa PCB li molemo ka ho fetisisa bakeng sa meralo ea zigbee moo sebaka se leng thata.
Ho beha le ho Ntlafatsa
Baenjiniere ba tlameha ho beha antenna ea zigbee sebakeng se setle. Ho beha hantle ho thusa mojule oa zigbee ho romella le ho fumana matšoao hantle. Li boloka lenakana le le hole le lipotoloho tsa tšepe le tse lerata. Sena se emisa tšitiso mme se boloka lets'oao le le matla. Baenjiniere ba bangata ba sebelisa sefofane se fatše tlas'a lenaka la zigbee. Sena se etsa hore antenna e sebetse hantle. Ba boetse ba leka sesebelisoa malapeng a sebele ho hlahloba letšoao.
Malebela ke ana a ho bea antenna ea zigbee hamolemo:
Beha lenaka la zigbee haufi le ntlha ea boto.
Boloka mojule oa zigbee hole le libeteri le likarolo tse kholo tsa tšepe.
Sebelisa mesaletsa e mekhutšoanyane lipakeng tsa mojule oa zigbee le antenna.
Lekola sesebelisoa sa zigbee likamoreng tse fapaneng ho fumana libaka tse fokolang.
Zigbee e thusa malapa a bohlale ka ho sebelisa matla a manyenyane le marang-rang a matla a marang-rang. Ho khetha lenakana le nepahetseng le ho le beha sebakeng se setle ho etsa hore zigbee e sebetse hantle le ho feta.
Sebopeho sa PCB se se nang mohala
Ho arola le ho Ikhetha
Baenjiniere ba arola waelese pcb ka likarolo tse fapaneng. Ba arola likarolo tsa analog, digital, le wireless. Sena se thibela lerata ho tsamaea lipakeng tsa likarolo. Karolo ka 'ngoe e etsa mosebetsi oa eona. Karolo e se nang mohala e sebetsana le ho romella le ho fumana matšoao. Karolo ea analoge e sebetsa le matšoao a sensor. Karolo ea digital e laola data le logic.
Ho arola pcb ho thusa ho emisa tšitiso. Baenjiniere ba sebelisa lifofane tse fatše ho arola likarolo. Ba beha mojule oa mohala hole le likarolo tse lerata tsa dijithale. Sena se boloka lets'oao la waelese le bolokehile ebile le hlakile. Ho itšehla thajana ho thusa pcb ea waelese hore e fete liteko tsa EMC.
Keletso: Beha karolo ea waelese haufi le ntlha ea manakana. Sena se thusa ho boloka matshwao a le matla mme se etsa hore waelese e sebetse hantle.
Moralo oa Trace
Moralo oa mohlala ke ea bohlokoa bakeng sa tshebetso ya waelese pcb. Baenjiniere ba etsa mesaletsa e khutšoanyane le e otlolohileng. Mesaletsa e khutšoanyane e fokotsa khanyetso le ho boloka matšoao a le matla. Mesaletsa e pharalletseng e thusa ho romella mats'oao a maqhubu a holimo. Li boetse li thusa ho emisa pcb ho chesa haholo.
Baenjineri ba khetha bophara ba trace ho tsamaisana le tšitiso e hlokahalang. Impedans e laoloang e boloka matšoao a hloekile. Ba sebelisa li-curve tse boreleli ho e-na le likhutlo tse bohale. Li-curve tse boreleli li thusa matšoao a potlakileng ho tsamaea hantle. Baenjiniere ba sebelisa mekhoa ea microstrip kapa stripline bakeng sa boleng bo botle ba matšoao.
Mona ke tafole e nang le malebela a moralo oa mohala oa mohala oa pcb:
Keletso ea Moralo oa Trace | Molemo bakeng sa Wireless PCB |
|---|---|
Mesaletsa e khutšoanyane, e tobileng | Lets'oao le matla la waelese |
Impedans e laoloang | Molemo phetiso boleng |
Li-curve tse boreleli | Ponahatso e nyane ea lets'oao |
Mesaletsa e pharaletseng | Ho hanyetsa ho tlaase, mocheso o fokolang |
Baenjiniere ba leka pcb bakeng sa tahlehelo ea matšoao. Ba sebelisa lisebelisoa ho hlahloba hore na matšoao a matla ka ho lekaneng. Moralo o motle oa mohlala o thusa pcb ho sebetsa ka Wi-Fi, Zigbee, le Bluetooth.
Phokotso ea Tšitiso
Tšitiso ka etsa waelese pcb sebetsa hampe. Baenjiniere ba sebelisa mekhoa e mengata ea ho fokotsa tšitiso. Ba eketsa lifofane tsa fatše tlas'a karolo e se nang mohala. Lifofane tse fatše li thibela lerata 'me li boloka matšoao a sireletsehile. Shielding e koahela likarolo tsa bohlokoa tsa pcb. Sena se boloka lerata le kantle hole le mojule oa waelese.
Baenjiniere sebaka tsoa mela phetiso ka pcb. Sena se thibela matšoao ho tsoakana hammoho. Li boloka matla le lithapo tsa fatše li le hole le mesaletsa ea waelese. Ho beha karolo ka hloko ho thusa ho fokotsa tšitiso. Baenjiniere ba sebelisa li-filters ho hloekisa matla bakeng sa karolo e se nang mohala.
Mona ke tse ling tsa mehato ea ho theola tšitiso ea waelese pcb:
Sebelisa lifofane tsa fatše tlas'a li-module tsa waelese.
Eketsa tšireletso ho sireletsa puisano e se nang mohala.
Tlosa lithapo tsa phetiso ho emisa crosstalk.
Beha likarolo tsa waelese hole le lipotoloho tse lerata.
Sebelisa lihloela lithapong tsa motlakase bakeng sa matšoao a hloekileng.
Ela hloko: Testing ea waelese pcb bophelong ba sebele thusa ho fumana le ho lokisa tšitiso pele ho etsa sehlahiswa ho qetela.
Baenjiniere ba sebetsa ka thata ho fokotsa tšitiso le ho boloka matšoao a le matla. Pcb e ntle ea waelese e thusa lisebelisoa tse bohlale tsa lapeng ho romella le ho fumana data ntle le mathata.
Teko le ho netefatsoa ka Wireless
RF Compliance
Lisebelisoa tsa lapeng tse bohlale li tlameha ho latela RF ho latela melao melaoana. Melao ena etsa bonnete ba hore mong le e mong waelese pcb bolokehileng. Li boetse li thusa ho emisa mathata ka lisebelisoa tse ling. Baenjiniere ba leka pcb ea waelese ho bona hore na e kopana le litekanyetso tse kang FCC kapa CE. Ba lekanya hore na PCB ea waelese e romela matla a makae. Ba boetse ba hlahloba hore na matšoao a lula lihlopheng tse nepahetseng tsa maqhubu.
Lisebelisoa tse khethehileng li sebelisoa bakeng sa tlhahlobo ea ho latela melao ea RF. Baenjiniere ba kenya pcb ka kamoreng ea teko. Ba sebelisa li-antenna ho lekanya matšoao. Haeba pcb ea waelese ha e fete, baenjiniere ba fetola moralo. Ba ka eketsa tšireletso kapa ho tsamaisa likarolo ho potoloha. Ho fetisa liteko tsa ho latela melao ea RF ho etsa hore lisebelisoa tse bohlale tsa lapeng li sebetse linaheng tse ngata.
Tlhokomeliso: Teko ea ho latela melao ea RF e boloka basebelisi ba bolokehile. E boetse e thusa ho sireletsa marang-rang a waelese ho tsoa tšitiso.
Letšoao le Tlhahlobo ea Matla
Baenjiniere ba leka lets'oao le matla a pcb e 'ngoe le e' ngoe e se nang mohala. Ba hlahloba hore na matšoao a lula a le matla ho tloha mojuleng ho ea ho antenna. Lisebelisoa tse kang spectrum analyzers li ba thusa ho bona hore na matšoao a hlakile. Matshwao a fokolang kapa a lerata a ka etsa hore disebediswa tsa lapeng tse bohlale di lahlehelwe ke kgokelo.
Teko ea matla e hlahloba hore na pcb e fana ka motlakase o nepahetseng le hona joale. Matla a mangata haholo kapa a fokolang haholo a ka lematsa pcb e se nang mohala. E ka boela ea etsa hore e khaotse ho sebetsa. Baenjiniere ba sebelisa li-multimeter le li-oscilloscope bakeng sa liteko tsena. Ba sheba marotholi kapa li-spikes tse matla tse ka bakang mathata.
Lethathamo le bonolo la tlhahlobo ea lets'oao le matla:
Lekanya matla a pontšo libakeng tse fapaneng ho pcb.
Sheba lerata kapa matshwao a sa batleheng.
Lekola lithapo tsa motlakase bakeng sa motlakase o tsitsitseng le oa hona joale.
Sheba mocheso haufi le mojule oa waelese.
Teko e ntle e thusa baenjiniere ho fumana mathata esale pele. Sena se etsa hore pcb ea waelese e sebetse hantle ho lisebelisoa tse bohlale tsa lapeng.
Litlhahiso Tse Sebetsang
Kopano le Tharollo ya Mathata
Baenjiniere ba na le mathata ha ba kopanya li-module tsa wireless bakeng sa iot. Ba lokela ho ba hlokolosi ka mong le e mong pcb. Sena se boloka likarolo tsa waelese li sireletsehile kotsing. Libaka tse hloekileng tsa mosebetsi li bohlokoa molemong oa botle kopano. Litšila kapa lerōle li ka thibela matšoao a lisebelisoa tse se nang mohala. Baenjiniere ba sebelisa lisebelisoa tsa antistatic ho sireletsa zigbee le li-module tse ling ho tloha motlakase o tsitsitseng.
Ba hlahloba mong le e mong kgokelo ya ka pcb nakong kopano. Likarolo tse hlephileng li ka etsa hore matšoao a se nang mohala a khaotse ho sebetsa. Li-magnifiers li thusa baenjiniere ho fumana mathata a manyane. Haeba mochini o se nang mohala o hloleha, ba leka phepelo ea motlakase pele. Matla a fokolang a ka emisa lits'ebetso tsa iot ho sebetsa. Bahlahlobi ba matšoao ba thusa ho lekola hore na mojule oa mohala o romella le ho fumana data.
Ho rarolla mathata ho bolela ho batla mesaletsa e robehileng kapa manakana. Baenjiniere ba fapanyetsana likarolo tse mpe ebe ba leka pcb hape. Ba ngola tokiso e 'ngoe le e 'ngoe ho thusa ka litokiso tse tlang.
Keletso: Lekola lisebelisoa tse se nang mohala lits'ebetsong tsa 'nete tsa iot pele u li sebelisa. Sena se thusa ho fumana mathata a patiloeng esale pele.
Bopaki ba bokamoso
Theknoloji ea lapeng e bohlale e fetoha kapele. Baenjiniere ba rala li-PC tsa waelese bakeng sa ts'ebeliso e ncha ea iot le maemo a tlang. Ba khetha li-module tse ka ntlafatsang software ea bona. Sena se boloka lisebelisoa li le molemo ha iot e ntse e hola.
Baenjiniere ba khetha li-module tse se nang mohala tse sebetsang ka liprothokholo tse ngata. Zigbee le Wi-Fi li thusa lisebelisoa tse bohlale ho hokela lits'ebetsong tse ngata tsa iot. Ba tlohela sebaka se eketsehileng ho pcb bakeng sa likarolo tse ncha tsa waelese. Sena se nolofalletsa ho ntlafatsa.
Tafole e ka tlase e bonts'a mekhoa ea ho sebelisa li-wireless pcbs nakong e tlang:
Method | Molemo bakeng sa Likopo tsa IoT |
|---|---|
Mokhoa o itekanetseng | Lintlafatso tse bonolo bakeng sa theknoloji e ncha e se nang mohala |
Lisebelisoa tsa Firmware | Tšehetso bakeng sa likarolo tse ncha tsa iot |
Li-module tse ngata tsa protocol | Hokela ho lisebelisoa tse ling tse bohlale |
Baenjiniere ba lekola li-PC tsa waelese ka lits'ebetso tse fapaneng tsa iot. Ba etsa bonnete ba hore mojule ka mong o sebetsa libakeng tse ngata tse bohlale. Moralo ona o thusa litsamaiso tsa othomathike ho tšoarella nako e telele le ho ts'ehetsa lisebelisoa tse ngata.
Tlhokomeliso: Li-wireless pcbs tsa nako e tlang li thusa malapa a bohlale ho hola ka tšebeliso e ncha ea iot le theknoloji e se nang mohala.
Lisebelisoa tsa lapeng tse bohlale li tlameha ho ba le moralo o motle oa waelese. Baenjiniere ba khetha li-PCB tse ngata ho etsa hore mohala o sebetse hantle. Ba leka ho thibela EMI le EMC ho tsoa mats'oao a kotsi. Sebopeho se setle se thusa ho boloka matšoao a le matla a bile a hlakile. Teko e etsa bonnete ba hore mojule ka mong oa mohala o sebetsa hantle. Baenjiniere ba sebelisa li-module tse se nang mohala tse sebetsang le iot. Moralo o hlokolosi o thusa malapa a bohlale ho fumana maemo, lebelo le polokeho. Lihlopha tse sebelisang mehato e ntle ea waelese li etsa lihlahisoa tseo u ka li tšepang.
Matlo a bohlale a hloka litharollo tsa waelese tse sebetsang kamehla.
LBH
Molemo o ka sehloohong oa ho sebelisa multilayer PCB ho lisebelisoa tsa lapeng tse bohlale ke ofe?
A PCB e fapaneng lumella lienjiniere ho beha lipotoloho tse ngata sebakeng se senyenyane. E thusa matšoao ho lula a le matla a bile a hlakile. Moralo ona o boetse o fokotsa tšitiso. Lisebelisoa li ka sebetsa betere 'me tsa tšoarella nako e telele ka li-PCB tse ngata.
Ho beoa ha antenna ho ama ts'ebetso ea waelese joang?
Moo u behang antenna ho fetola tsela eo e sebetsang hantle ka eona. Haeba lenakana le haufi le moeli 'me le se haufi le tšepe, le romela le ho fumana matšoao hamolemo.
Keletso: Leka libaka tse fapaneng tsa antenna ka likamoreng tsa 'nete ho bona hore na ke efe e fanang ka molumo o motle.
Hobaneng ha lienjineri li laola ho se sebetse ha meralo ea PCB e phahameng haholo?
Baenjineri ba laola tšitiso ho thibela matšoao hore a se ke a fokola. Haeba impedance e fosahetse, matšoao a ka khutla mme a baka liphoso. Impedans e bapisang e thusa lisebelisoa ho buisana ntle le mathata.
Ke liteko life tse thusang ho netefatsa hore PCB e se nang mohala e sebetsa hantle?
Baenjiniere ba sebelisa liteko tsena:
Ho latela melao ea RF ho hlahloba hore na sesebelisoa se bolokehile mme se latela melao.
Liteko tsa matla a mats'oao li bonts'a hore na sesebelisoa se ka romella data hole ho lekana.
Liteko tsa matla li etsa bonnete ba hore sesebelisoa se lula se fumana matla a lekaneng.
Mofuta oa Teko | morero |
|---|---|
RF Compliance | E hlahloba melao ea polokeho |
Matla a Signal | E bontša hore na data e ea hole hakae |
Teko ea Matla | E hlahloba matla a tsitsitseng |
