Garashada Joogtaynta Sare Gudida Wareegyada Daabacan

PCB-ga gaarka ah ee leh soo noqnoqoshada elektromagnetic sare, guud ahaan hadalka, soo noqnoqda sare waxaa lagu qeexi karaa inta jeer ee ka sarreeya 1GHz. Waxqabadkeeda jireed, saxsanaantiisa iyo cabbiraadaha farsamada ayaa aad u sarreeya, waxaana caadi ahaan loo adeegsadaa nidaamyada ka hortagga isku dhaca baabuurta, nidaamyada dayax-gacmeedka, nidaamyada raadiyaha iyo qeybaha kale. qiimuhu waa sarreeyaa, badiyaa ku dhawaad ​​1.8 yuan sentimitir laba jibaaran, ku dhawaad ​​18000 yuan halkii mitir laba jibaaran.
Astaamaha HF guddiga wareegga wareegga
1. Shuruudaha xakamaynta impedance waa mid adag, xakamaynta ballaca xariiqda waa mid aad u adag. Dulqaadka guud waa ilaa 2%.
2. Sababtoo ah saxanka gaarka ah, dhejinta PTH ee naxaasta ma aha mid sarreeya. Caadi ahaan waa lagama maarmaan in la hagaajiyo fiisooyinka iyo dusha sare iyadoo la kaashanayo qalabka daaweynta balaasmaha si loo kordhiyo ku dhejinta PTH copper iyo alxanka caabbinta khad.
3. Kahor alxanka caabbinta, saxanku ma noqon karo dhulka, haddii kale adhesion wuxuu noqon doonaa mid aad u liita, oo kaliya waxaa lagu qallajin karaa dareeraha etching micro.
4. Inta badan taarikada waxay ka samaysan yihiin maaddooyinka polytetrafluoroethylene. Waxaa jiri doona cidhifyo badan oo qallafsan marka lagu sameeyo gooyo wax-shiidka caadiga ah, sidaas darteed gooyayaasha wax-shiidka ee gaarka ah ayaa loo baahan yahay.
5. Guddiga wareegga wareegga sarreeya waa guddi wareeg ah oo gaar ah oo leh soo noqnoqoshada korantada sare. Guud ahaan, soo noqnoqda sare waxaa lagu qeexi karaa inta jeer ee ka sarreeya 1GHz.

Waxqabadkeeda jireed, saxsanaantiisa iyo cabbiraadaha farsamada ayaa aad u sarreeya, waxaana caadi ahaan loo adeegsadaa nidaamyada ka hortagga isku dhaca baabuurta, nidaamyada dayax-gacmeedka, nidaamyada raadiyaha iyo qeybaha kale.

Falanqaynta faahfaahsan ee xuduudaha Guddiga-Soo noqnoqoshada Sare
Soo noqnoqda sare ee qalabka elektiroonigga ah waa isbeddel horumarineed, gaar ahaan horumarinta sii kordheysa ee shabakadaha wireless-ka iyo isgaarsiinta dayax-gacmeedka, alaabooyinka macluumaadka waxay u socdaan xawaarahooda sare iyo soo noqnoqoshada sare, iyo alaabooyinka isgaarsiineed waxay u socdaan habaynta codka, fiidiyowga iyo xogta gudbinta wireless. oo leh awood weyn oo xawli badan leh. Sidaa darteed, jiilka cusub ee alaabtu waxay u baahan yihiin sabuurad-sare oo joogto ah. Alaabooyinka isgaadhsiinta sida nidaamka satalaytka iyo talefanka gacanta ee helaya saldhigyada saldhiga waa in ay adeegsadaan looxyada wareegyada ee soo noqnoqda. Dhawrka sano ee soo socda, waxay ku xidhan tahay inay si degdeg ah u horumarto, iyo sabuuradaha soo noqnoqda ee sarreeya waxay noqon doontaa baahi weyn.
(1) Isku-xidhka ballaadhinta kulaylka ee guddiga wareegga wareegga-sare iyo bireed naxaas ah waa inay ahaadaan kuwo joogto ah. Haddii kale, xaashida naxaasta ah ayaa la kala sooci doonaa habka isbeddelada qabow iyo kulul.
(2) Substrate-ka wareegga wareegga sare ee soo noqnoqda waa inuu lahaadaa nuugista biyaha hooseeya, nuugista biyaha sare waxay keeni doontaa lumis joogto ah dielectric iyo dielectric marka ay saamayso qoyaanka.
(3) Joogtada dielectric (Dk) ee guddiga wareegga wareegga-sare waa inuu ahaadaa mid yar oo deggan. Guud ahaan marka la eego, inta yar ayaa ka wanaagsan. Heerka gudbinta calaamaduhu waxa uu u dhigma si ka duwan xididka labajibbaaran ee joogtada ah ee walxaha. Joogtada dielectric sare waa ay fududahay in ay sababto dib u dhac gudbinta signal.
(4) Khasaaraha dielectric (Df) ee qalabka wareegga wareegga wareegga-sare waa inuu ahaadaa mid yar, kaas oo inta badan saameeya tayada gudbinta calaamadaha. Inta yar ee khasaaraha dielectric waa, waa yar yahay khasaaraha signalada.
(5) Iska caabbinta kulaylka kale, caabbinta kiimikaad, xoogga saamaynta iyo xoogga diirka ee qalabka wareegga wareegga-sare ee qalabka waa inay sidoo kale noqdaan kuwo wanaagsan. Guud ahaan, soo noqnoqda sare waxaa lagu qeexi karaa inta jeer ee ka sarreeya 1GHz. Waqtigan xaadirka ah, substrate-ka wareegga wareegga-sare ee inta badan loo isticmaalo waa substrate-ka fluorine dielectric, sida polytetrafluoroethylene (PTFE), kaas oo inta badan loo yaqaan Teflon oo inta badan loo isticmaalo ka sarreeya 5GHz. Intaa waxaa dheer, FR-4 ama substrate PPO waxaa loo isticmaali karaa alaabada u dhaxaysa 1GHz iyo 10GHz.

Waqtigan xaadirka ah, xabagta epoxy, xabagta PPO iyo fluoro waa saddexda nooc ee ugu waaweyn ee qalabka wareegga wareegga-sare ee qalabka, oo ay ka mid yihiin xabagta epoxy waa kan ugu jaban, halka xabka fluoro uu yahay kan ugu qaalisan; Iyadoo la tixgelinayo dielectric joogto ah, luminta dielectric, nuugista biyaha iyo sifooyinka soo noqnoqda, fluororesin waa kan ugu fiican, halka resin epoxy uu yahay kan ugu xun. Marka inta jeer ee codsiga alaabadu ka sarreeyo 10GHz, kaliya looxyada daabacan ee fluororesin ayaa la isticmaali karaa. Sida iska cad, waxqabadka substrate-soo noqnoqda sare ee fluororesin aad ayuu uga sarreeyaa kuwa kale ee substrates, laakiin faa’iidooyinkeeda waa qallafsanaan liidata iyo kororka fidinta kulaylka weyn marka lagu daro kharashka sare. Wixii polytetrafluoroethylene (PTFE), tiro badan oo ah walxo aan dabiici ahayn (sida silica SiO2) ama maro dhalada ah ayaa loo isticmaalaa xoojinta walxaha buuxinta si loo hagaajiyo waxqabadka, si loo hagaajiyo qallafsanaanta alaabta aasaasiga ah iyo in la yareeyo ballaarinta kulaylka.

Intaa waxaa dheer, iyada oo ay ugu wacan tahay inertia molecular ee resin PTFE lafteeda, ma fududa in lagu daro foornada naxaasta ah, sidaas darteed daaweynta dusha gaarka ah ayaa looga baahan yahay isdhexgalka leh naxaas naxaas ah. Marka la eego hababka daawaynta, etching kiimikaad ama etching plasma ayaa lagu fuliyaa dusha sare ee polytetrafluoroethylene si loo kordhiyo qallafsanaanta dusha sare ama lagu daro lakabka filimka dhejiska ah ee u dhexeeya foil copper iyo polytetrafluoroethylene resin si loo hagaajiyo adhesion, laakiin waxaa laga yaabaa inay saameyn ku yeelato waxqabadka dhexdhexaadka ah. Horumarinta oo dhan fluorine ku salaysan substrate guddiga-soo noqnoqoshada waxay u baahan tahay iskaashiga alaab-qeybiyeyaasha alaabta ceeriin, unugyada cilmi-baarista, alaab-qeybiyeyaasha qalabka, saarayaasha PCB iyo soo saarayaasha alaabta isgaarsiinta, Si loo sii wado horumarka degdega ah ee Guddiga wareegga wareegga-sare ee soo noqnoqdas goobtan.