Ukongeza kwimbonakalo yomgca we-RF, isakhiwo esiselula kwiBhodi yePCB yePCB sikwadinga ukuqwalasela imiba efana nokuchithwa kobushushu, izixhobo ezikhoyo, isakhiwo kunye nesiphumo solusu. Ngokwesiqhelo sibambekile kwaye sibambeke kwiBhodi ePrintayo yeMultayer. Landela imigaqo esisiseko:
A) Umaleko ngamnye wePCB ye-RF igutyungelwe yindawo enkulu ngaphandle kweplagi yamandla. Iingqimba eziphezulu nezisezantsi ze-RF kufuneka zibe ziinqwelomoya.
Nokuba yibhodi edityanisiweyo ye-digital, icandelo ledijithali linokuba neplagi yamandla, kodwa indawo ye-RF isafuneka ifezekise imfuneko yomgangatho omkhulu womgangatho kumgangatho ngamnye.
B) Iphaneli ephindwe kabini ye-RF, umaleko ophezulu ngumqondiso womqondiso, kwaye umlinganiso ongezantsi yindiza yasemhlabeni.
Ibhodi ye-RF ye-RF enye, umaleko oPhezulu ngumqondiso womqondiso, iingqimba zesibini neyesibini zineendiza zomhlaba, kwaye ungqameko lwesithathu lweyamandla kunye nemigca yesithathu yeyamandla kunye nokulawula imigca yamandla kunye nokulawula. Kwiimeko ezikhethekileyo, imigca eminye yemiqondiso ye-RF inokusetyenziswa kwi-famier yesithathu. Iingcambo ezininzi iibhodi zeRF, njalo njalo.
C) Ukufumana i-RF i-RF i-RF, iindawo ezingaphezulu nezingaphantsi zomhlaba zombini zomabini umhlaba. Ukwenzela ukunciphisa ukunqunyulwa kwengcibi kubangelwa yi-VIA kunye neChanch, yesibini, okwesithathu, eyesine, kunye nelesihlanu isebenzisa imiqondiso yedijithali.
Ezinye iindawo zomhluzi-manani kumhlaba ongezantsi ziziimbambo ezisezantsi. Kwangokunjalo, la manani mabini akufuphi ne-RF yomqondiso kufuneka abe ngumhlaba, kwaye umaleko ngamnye kufuneka agutyungelwe yindawo enkulu.
D) Amandla amakhulu, iBhodi ePhakamileyo ye-RF ephezulu, ikhonkco eliphambili le-RF kufuneka ibekwe kwi-fayint ephezulu kwaye iqhagamshelwe kumgca obanzi we-hictripr.
Oku kulungele ukubekwa kwe-hope kunye nelahleko yamandla, ukunciphisa iimpazamo zokubonisa ucingo.
E) Indiza yamandla yecandelo ledijithali kufuneka isondele kwindiza yomhlaba kwaye icwangciswe ngezantsi inqwelomoya.
Ngale ndlela, amandla phakathi kweepleyiti ezimbini zentsimbi zinokusetyenziswa njenge-capyuting ye-cangoub yokubonelela, kwaye kwangaxeshanye, inqwelomoya ikwanokukhusela i-radiations yangoku yenziwa kwindiza yamandla.
Indlela ethile yokutsalela kunye neemfuno zecandelo leplani zinokubhekisa kwi-"20050818 yeemfuno zeBhodi yeSheet yoyilo-kwi-EMC" ezibhengezwe liSebe Loyilo le-EDA, kwaye imigangatho ye-intanethi iya kubakho.
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I-RF yeBhodi yeeMfuno zeRhafu
2.1 Ikona
Ukuba umkhondo we-RF uhamba ngee-angles ezichanekileyo, ububanzi bokusebenza kwilayini ziya kunyuka, kwaye ukudinwa kuya kuyeke kwaye kubangele. Ke ngoko, kuyimfuneko ukujongana neekona, ubukhulu becala ngeendlela ezimbini: kwikona yokusika kunye nokujikeleza.
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(2) Irediya ye-angle ye-arc kufuneka ibe inkulu ngokwaneleyo. Ngokubanzi, qinisekisa: R> 3w.
2.2 I-winstrip wiring
Umaleko ophezulu we-PCB uhambisa umqondiso we-RF, kwaye i-themering yeplanethi phantsi kwe-RF kufuneka ibe yindiza yomgangatho opheleleyo ukwenza isakhiwo somgangatho we-microstrip. Ukuqinisekisa ukunyaniseka kwendlela yomgca we-Microstrip, kukho ezi mfuno zilandelayo:
. Kuluhlu lwe-3W, kufuneka kungabikho vias ezingengomhlaba.
(2) Umgama phakathi komgca we-microstrip kunye nodonga olukhuselekileyo kufuneka lugcinwe ngaphezulu kwe-2w. (Qaphela: W ngumgangatho wobubanzi).
. Isithuba seHole singaphantsi kwe-λ / 20, kwaye bazilungiselelwe ukulungiswa.
Umphetho we-foil yobhedu i-foil kufuneka igudile, iflethi, kwaye akukho burgli. Kucetyiswa ukuba umphetho we-copper yomhlaba ungaphezulu okanye ulingana nobubanzi be-1.5w okanye i-3h ukusuka kumda we-microstrip chiner chiner chiner chiner subcest.
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2.3 I-Stripline
Iimpawu zerediyo zerediyo ngamanye amaxesha zidlula kwi-right ephakathi ye-PCB. Eyona ixhaphakileyo ivela kuluma wesithathu. Iingqimba zesibini neyesine kufuneka zibe yindiza epheleleyo ye-suble, leyo, i-eccentric stripline. Ingqibelelo yolwakhiwo lomgca wotyando iya kuqinisekiswa. Iimfuneko ziya kuba:
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. Isithuba seHole singaphantsi kwe-λ / 20, kwaye bazilungiselelwe ukulungiswa. Umphetho we-foil yobhedu buthathaka kufuneka igudile, iflethi kwaye akukho burgy bebukhali.
Kucetyiswa ukuba umphetho wesikhumba sobhedu esincinci sikhulu okanye silingane nobubanzi be-1.5w okanye ububanzi be-3h ukusuka kumda womgca. H imele ubungqingqwa obungaphezulu kunye neendlela ezisezantsi zomgca wemigca.
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