Microwave guddiga wareegga daabacan iyo RF PCB waxay u baahan yihiin taabasho gaar ah oo laga yaabo in lamaanayaashaada wax -soo -saarka ee caadiga ah aysan awoodin inay qabtaan. Waxaan u adeegsan karnaa laminate -yada soo noqnoqda oo leh isteerinka adag iyo xakamaynta tayada sare si aan si habboon u naqshadeynno una horumarinno PCB -gaaga RF si loo hubiyo hawlgalka caadiga ah.

Rayming wuxuu noqday hogaamiyaha alaab -qeybiye PCB -ga mikrowave RF ee adduunka, isagoo diiradda saaraya laamiyadaha PCB -ga HF. Rogers PCB, Teflon PCB, Arlon PCB, waan soo saari karaa qalabka aad u baahan tahay.

RFB PCB

< p> Waxaad ku tiirsanaan kartaa alaabada xirfadeed ee Rayming maxaa yeelay waxaan leenahay kooxda, aaladaha iyo waayo-aragnimada aan ku qaban karno alaabta dahaarka leh oo leh baahiyo gaar ah oo la xiriira farsamada, kuleylka, korontada iyo sifooyinka waxqabadka gaarka ah ee ka baxsan qalabka FR-4 ee caadiga ah.

Ku dheji alaabtaada gacmo badbaado leh adiga oo aaminaya alaab -qeybiye PCB microwave sare oo diiradda saaraya shuruudaha dulqaadka adag isla markaana ku siiya taageerada aad u baahan tahay waqtigeeda, mar kasta.

Faham waxa PCBS hf yihiin,

1. Hf PCBS ama wac microwave PCBS /RF PCBS /RF PCBS ayaa si weyn loogu adeegsadaa isgaarsiinta wireless -ka, shabakadaha bilaa -waayirka ah iyo isgaarsiinta dayax -gacmeedka, gaar ahaan shabakadaha 3G, kordhinta baahida suuqa ee badeecadaha HF PCBS. Maanta, baahida loo qabo makiinadaha microwave-ka ee naqshadaha PCB ayaa kor u sii kacaya, iyo helitaanka xogta xawaaraha sare (soo noqnoqoshada badan) ayaa si dhakhso leh u noqonaysa daruuri suuqyo badan sida difaaca, aerospace iyo shabakadaha guurguura. Beddelidda sharuudaha suuqa waxay sii wadaa inay waddo horumarinta soo noqnoqoshada sare ee looxyada wareegga daabacan. Sida 50+ GHz raadiyaha microwave-ka ama nidaamyada hawada difaaca, waxay sidoo kale dejin kartaa PCBS-da halogen-ka ah.

2. RFB PCB & PCBS-yada soo noqnoqda ee laga sameeyay polytetrafluoroethylene (PTFE PCB), fluoropolymers-ka-dhoobada ka buuxsamay ama qalabka kuleylka kaarboon-hydrocarbon-ka-buuxsamay ee leh guryaha korantada ee la hagaajiyay. Maaddadu waxay leedahay joogteyn joogto ah oo ah 2.0-3.8, qodob lumis hooseeya iyo astaamo lumis aad u fiican, laakiin sidoo kale waxay leedahay waxqabad wanaagsan, heerkulka kala-guurka galaaska sare, heerka hydrophilic-ka oo aad u hooseeya, xasilloonida kuleylka aad u fiican. Iskuduwaha ballaarinta ee alaabta PCB PTFE waxay la mid tahay tan naxaasta, taas oo ka dhigaysa maaddada inay leedahay xasilooni heer sare ah.

3.Panda PCB Company waxay kordhisay qalabka wax soo saarka iyo maalgelinta r ​​& d. Dhowrkii sano ee la soo dhaafay ee horumarinta HF PCB, macaamiisha ka socota adduunka oo dhan si ay ula kulmaan horumarka suuqa PCB RFB, waxaan khibrad ballaaran u leenahay soo saarista PTFE PCB ee looxyada HF ee kala duwan, si dhakhso leh ayey ugu dhaqaaqi kartaa tusaalaha iyo wax soo saarka mugga. Alaab -qeybiyeyaasha guud ee alaabta teflon -ka waxaa ka mid ah: Rogers PCB, Nelco PCB, PCB Taconic, Arlon PCB.

Tilmaamaha guud ee RF guddiyada wareegga daabacan

RF iyo Mircowave PCB design

PCBS-da casriga ahi waxay isku daraan farsamooyin kala duwan oo dhijitaal ah iyo kuwo isku-dhafan, sidaa darteed qaabaynta iyo naqshadeynta ayaa noqda kuwo aad u dhib badan, gaar ahaan marka rf iyo microwave-ka lagu qaso qaybaha-hoose. Haddii aad nala shaqayso, iibiyaha kale ee PCB RF, ama aad naqshadayso RFB PC -gaaga, waxaa jira tixgelinno badan.

Midda hore waa in inta jeer ee RF inta badan ay tahay 500 MHz illaa 2 GHz, laakiin naqshadaha ka sarreeya 100 MHz waxaa badanaa loo tixgeliyaa RF PCBS. Haddii aad ka gudubto 2 GHz, waxaad ku jirtaa inta jeer ee microwave -ka.

Naqshadaha RFB iyo microwave PCB waxay leeyihiin kala duwanaansho weyn – farqiga u dhexeeya iyaga iyo wareegga dhijitaalka ama analogga ah.

Marka la soo koobo, guddiyada wareegga ee daabacan ee RF waxay adeegsanayaan astaamaha analogga inta jeer ee dabeecadda aad u sarraysa. Calaamaddaada RF waxay noqon kartaa ku dhawaad ​​danab kasta iyo heerka hadda jira waqti kasta, ilaa inta ay u dhexeyso xadkaaga ugu yar iyo kan ugu sarreeya.

RF -yada iyo microwave -ka guddiyada wareegga ee daabacan waxay gudbiyaan calaamado isku mid ah oo ku jira xadka soo noqnoqoshada qaarkood. Miirayaasha Bandpass waxaa loo isticmaalaa in lagu diro calaamadaha “kooxda xiisaha” iyo si loo shaandheeyo calaamado ka baxsan xadka soo noqnoqda. Kooxdu waxay noqon kartaa mid cidhiidhi ah ama ballaaran waxayna faafin kartaa xambaarsan soo noqnoqoshada sare.