Sichuan Keenlion Microwave Technology——Izihlungi
I-Sichuan Keenlion Microwave Technology Yasungulwa ngo-2004, i-Sichuan Keenlion Mircrowave techenology CO., Ltd. ingumkhiqizi ohamba phambili wezingxenye zePassive Mircrowave eSichuan Chengdu, eChina.
Sihlinzeka ngezingxenye ze-mirrowave ezisebenza kahle kakhulu kanye nezinsizakalo ezihlobene nezicelo ze-microwave ekhaya naphesheya. Imikhiqizo ibiza kakhulu, kufaka phakathi isihlukanisi samandla ahlukahlukene, ama-couplers aqondisayo, izihlungi, izihlanganisi, ama-duplexer, izakhi ezenziwe ngokwezifiso zokungenzi lutho, ama-isolator nama-circulator. Imikhiqizo yethu iklanyelwe ngokukhethekile izindawo ezihlukahlukene eziyingozi kanye namazinga okushisa. Imininingwane ingakhiwa ngokuya ngezidingo zamakhasimende futhi iyasebenza kuwo wonke amabhendi amafrikhwensi ajwayelekile nadumile anomkhawulokudonsa ohlukahlukene ukusuka ku-DC kuye ku-50GHz.
Isihlungi singakwazi ukuhlunga ngokuyimpumelelo ukuvama kwefrikhwensi ethile entanjeni yamandla noma ifrikhwensi ngaphandle kwephoyinti lefrikhwensi, sithole isignali yomthombo wamandla wefrikhwensi ethile, noma sisuse isignali ethile yamandla.
Isingeniso
Isihlungi siyidivayisi yokukhetha evumela ingxenye ethize yefrikhwensi kusignali ukuthi idluliswe, nezinye izingxenye zefrikhwensi zinciphe kakhulu. Lo mphumela wokukhetha usebenzisa isihlungi ungahlungwa kumsindo wokuphazamiseka noma wenze ukuhlaziya okubanzi. Ngamanye amazwi, kubizwa ngokuthi isihlungi esingabangela ingxenye ethile yefrikhwensi kusignali ukuthi idlule, futhi inciphise kakhulu noma icindezele ezinye izingxenye zefrikhwensi. Isihlungi siyidivayisi ehlungwa yigagasi. I-"Wave" ingumqondo obanzi kakhulu womzimba, emkhakheni wobuchwepheshe be-elekthronikhi, "igagasi" likhawulelwe kancane enqubweni yokukhipha inani lezinto ezibonakalayo ezahlukahlukene ngokuhamba kwesikhathi. Inqubo iguqulwa ibe umsebenzi wesikhathi we-voltage noma wamanje ngenani elihlukahlukene lomzimba, noma amasignali. Njengoba isikhathi esizishintshayo siyinani eliqhubekayo, sibizwa ngokuthi isignali yesikhathi esiqhubekayo, futhi ngokuvamile sibizwa ngokuthi isignali ye-analog.
Ukuhlunga kuwumqondo obalulekile ekucubunguleni isignali, futhi umsebenzi wokuhlunga isekethe kusilawuli se-voltage ye-DC ukunciphisa ingxenye ye-AC ku-voltage ye-DC ngangokunokwenzeka, kugcinwe isithako sayo se-DC, ukuze i-coefficient ye-voltage ephumayo ye-ripple yehliswe, i-waveform ibe Bushelelezi.
Tamapharamitha ayinhloko:
Imvamisa yesikhungo: Imvamisa ye-f0 yesihlungi sokudlula, ngokuvamile thatha u-f0 = (f1 + f2) / 2, f1, f2 njengephase yebhendi noma isihlungi sokumelana nebhendi kwesokunxele, ngokuphambene kwesokudla no-1 dB noma iphoyinti lemvamisa yonqenqema le-3DB. Isihlungi se-narrowband sivame ukubala umkhawulokudonsa we-passband ngephuzu elincane kakhulu lokulahlekelwa kokufaka.
Umnqamulajuqu: Isho indlela eya endleleni yebhendi yokudlula yesihlungi sephasi eliphansi kanye nebhendi yokudlula yesihlungi sokudlula okuphezulu. Ngokuvamile kuchazwa endaweni yokulahlekelwa ehlobene engu-1 dB noma i-3DB. Ireferensi yereferensi yokulahlekelwa okuhlobene iwukuthi: ukudlula okuphansi kusekelwe ekufakweni kwe-DC, futhi i-Qualcomm isekelwe kubuningi bokudlula okuphezulu okwanele komugqa we-parasitic.
I-passband bandwidth: ibhekisela kububanzi be-spectrum obudingekayo ukuze kudlule, BW = (F2-F1). I-F1, i-F2 isekelwe ekulahlekeni kokufaka ku-frequency emaphakathi F0.
Ukulahlekelwa kokufaka: Ngenxa yokwethulwa kwesihlungi emkhathini wesignali yoqobo kusekethe, ukulahlekelwa phakathi nendawo noma imvamisa yokunqamuka, njengokudingekile ukuze kugcizelelwe ukulahleka kwebhendi yonke.
I-Ripple: Ibhekisela kumkhawulokudonsa we-1DB noma we-3DB (imvamisa ye-cutoff), ukulahlekelwa kokufaka kushintsha inani eliphakeme lemvamisa kwijika lencazelo yokulahlekelwa.
Ukushintshashintsha kwangaphakathi: Ukulahlekelwa kokufakwa ebhendini edlulayo enokuhluka kwemvamisa. Ukushintshashintsha kwebhendi kumkhawulokudonsa ongu-1db ngu-1db.
Ukulinda okungaphakathi kwebhendi: Linganisa ukuthi isignali kubhendi yokudlula kusihlungi ilungile yini ukuze ihambisane nokudluliswa kokudlulisela. I-Ideal Match VSWR = 1: 1, i-VSWR inkulu kuno-1 uma ingafani. Ukuze uthole isihlungi sangempela, umkhawulokudonsa owanelisa i-VSWR ungaphansi kuka-1.5: u-1 ngokuvamile ungaphansi kwe-BW3DB, elandisa ingxenye ye-BW3DB kanye nokuhlelwa kwesihlungi nokulahlekelwa kokufaka.
Ukulahleka kwe-Roop: Izilinganiso zenani lama-decibel (DB) lamandla okufaka isignali yembobo namandla abonisiwe alingana no-20 Log 10ρ, ρ iyi-coefficient ebonisa i-voltage. Ukulahlekelwa kwembuyiselo akupheli uma amandla okokufaka amuncwa imbobo.
Ukukhiqizwa kabusha kwe-strip suppression: inkomba ebalulekile yekhwalithi yokusebenza kokukhetha isihlungi. Uma inkomba iphakeme, kungcono ukucindezelwa kwesignali yokuphazamiseka kwangaphandle. Ngokuvamile kunezinhlobo ezimbili zesiphakamiso: indlela yokucindezela ukuthi ingakanani i-DB inhibition yebhande elinikeziwe lokuwela imvamisa fs, indlela yokubala i-FS yehla; enye inkomba yesiphakamiso sentambo yesihlungi sophawu nendlela ekahle kanxande - I-Rectangular coefficient (KXDB inkulu kuno-1), i-KXDB = BWXDB / BW3DB, (X ingaba ngu-40dB, 30dB, 20DB, njll.). Ama-rectangles amaningi, ukuphakama kwawo unxande - okungukuthi, ukusondela kwenani elifanele elingu-1, futhi ubunzima bokwenza ukukhiqizwa kukhulu.
Ukubambezeleka: Isignali ibhekisela esikhathini esidingekayo ukuze isignali idlulisele umsebenzi wesigaba imvamisa ye-diagonal, okungukuthi, TD = DF / DV.
Umugqa wesigaba esingaphakathi kwebhendi: Lesi sihlungi sezinhlamvu zenkomba siwukuhlanekezelwa kwesigaba sesiginali edlulisiwe kubhendi yokungena. Isihlungi esidizayinwe umsebenzi wokuphendula wesigaba somugqa sinokulingana kwesigaba esihle.
Ukuhlukaniswa okuyinhloko
Ihlukaniswe yaba isihlungi se-analog kanye nesihlungi sedijithali ngokuya ngesignali ecutshungulwayo.
Iphaseji yesihlungi se-passive ihlukaniswe yaba iphasi eliphansi, iphasi ephezulu, i-bandpass, nesihlungi se-all-pass.
Isihlungi sokudlula okuphansi:ivumela i-low-frequency noma izingxenye ze-DC kusiginali ukuthi zidluliswe, cindezela izingxenye zefrikhwensi ephezulu noma ukuphazamiseka nomsindo;
Isihlungi se-High-pass: ivumela izingxenye zemvamisa ephezulu kusiginali ukuthi zidluliswe, cindezela imvamisa ephansi noma izingxenye ze-DC;
Isihlungi se-Band Pass: Ivumela amasignali ukuthi adluliswe, amasignali acindezelwe, ukuphazamiseka, nomsindo ngezansi noma ngaphezu kwebhendi;
Isihlungi se-Beltable: Icindezela amasiginali ngaphakathi kwebhendi ethile yefrikhwensi ivumela amasignali ngaphandle kwebhendi, eyaziwa nangokuthi isihlungi senotshi.
Isihlungi se-All-pass: Isihlungi esiphelele sisho ukuthi ukuphakama kwesiginali ngeke kushintshe phakathi kwebanga eligcwele, okungukuthi, inzuzo ye-amplitude yobubanzi obugcwele ilingana no-1. Izihlungi ezijwayelekile zokudlula zonke zisetshenziselwa isigaba, okungukuthi, isigaba sokushintsha kwesignali yokufaka, futhi okuhle ukuthi ukushintshwa kwesigaba kuhambisana nemvamisa, okulingana nesistimu yokubambezeleka kwesikhathi.
Zombili izingxenye ezisetshenzisiwe ziyizihlungi ezingenzi lutho nezisebenzayo.
Kuye ngokubekwa kwesihlungi, ngokuvamile sihlukaniswa sibe isihlungi sepuleti nesihlungi sephaneli.
Ebhodini, faka ebhodini, njenge-PLB, isihlungi sochungechunge lwe-JLB. Izinzuzo zalesi sihlungi ziyonga, futhi okubi ukuthi ukuhlunga imvamisa ephezulu akulungile. Isizathu sawo esikhulu yilesi:
1. Akukho ukuhlukaniswa phakathi kokufakwayo nokuphumayo kwesihlungi, esijwayele ukuhlangana;
2, i-impedance yaphansi yesihlungi ayiphansi kakhulu, yenza buthaka umphumela wokudlula imvamisa ephezulu;
I-3, ucezu lokuxhumana phakathi kwesihlungi kanye ne-chassis luzoveza imiphumela emibi emibili: enye iwukugxambukela kwe-electromagnetic kwesikhala sangaphakathi se-chassis, esidonswa ngokuqondile kulo mugqa, eduze kwekhebula, futhi ikhiphe isihlungi ngokusebenzisa imisebe yekhebula. Ukwehluleka; okunye ukuthi ukuphazamiseka kwangaphandle kuhlungwa ngesihlungi sokuhlunga ebhodini, noma imisebe ikhiqizwa ngokuqondile noma ngokuqondile kumjikelezo ebhodini lesifunda, okuholela ezinkingeni zokuzwela;
Izihlungi zohlu lwamapuleti, izixhumi zokuhlunga nezinye izihlungi zamaphaneli ngokuvamile zifakwa kuphaneli yensimbi ye-chassis evikelayo. Njengoba ifakwe ngokuqondile kuphaneli yensimbi, okokufaka nokuphuma kwesihlungi kuhlukaniswe ngokuphelele, umhlabathi usekelwe kahle, futhi ukuphazamiseka kwekhebula kuhlunga phezu kwembobo ye-chassis, ngakho umphumela wokuhlunga ulungile impela.
Isihlungi se-passive siyisekethe yesihlungi esisebenzisa i-resistor, i-reactor, kanye nengxenye ye-capacitor. Uma imvamisa ye-resonant, inani le-impedance yesifunda lincane, futhi i-impedance yesifunda inkulu, inani lengxenye yesifunda lilungiswa ukuze libe imvamisa ye-harmonic yesici, futhi i-harmonic current ingahlungwa; lapho amafrikhwensi amaningana we-harmonic Isifunda sokulungisa sakhiwa, khona-ke isici esihambisanayo imvamisa ye-harmonic singahlungwa, futhi ukuhlunga inombolo eyinhloko ye-harmonic (3, 5, 7) kufinyelelwa ngokudlula okuphansi kwe-impedance. Isimiso esiyinhloko singokwenombolo ehlukene yama-harmonics, ukuklama imvamisa ye-harmonic kuncane, kufinyelela umphumela wokuhlukanisa we-harmonic yamanje, ukuhlinzeka ngephaseji lokudlula lama-harmonics aphezulu ahlungiwe ukuze kuzuzwe i-waveform yokuhlanza.
Izihlungi ze-Passive zingahlukaniswa zibe izihlungi ze-capacitive, izifunda zokuhlunga isitshalo samandla, amasekhethi okuhlunga e-L-RC, amasekhethi okuhlunga e-RC amise okwe-π, amasekhethi okuhlunga e-RC anezigaba eziningi, kanye namasekethe okuhlunga e-LC anomumo ongu-π. Cindezela ukuze usebenze kusihlungi sokushuna esisodwa, isihlungi sokushuna okukabili, nesihlungi sokudlula okuphezulu. Isihlungi se-passive sinezinzuzo ezilandelayo: isakhiwo silula, izindleko zokutshala izimali ziphansi, futhi ingxenye esebenzayo ohlelweni inganxephezela isici samandla ohlelweni. Ithuthukisa isici samandla wegridi; ukuzinza kokusebenza kuphezulu, ukugcinwa kulula, ukuvuthwa kobuchwepheshe, njll Kusetshenziswa kabanzi. Kunezici eziningi zokushiyeka kwezihlungi ze-passive: umthelela wemingcele yegridi yamandla, inani le-impedance yesistimu kanye nenombolo eyinhloko yamafrikhwensi anomsindo ngokuvamile ashintsha njengezimo zokusebenza; isihlungi se-harmonic sincane, inombolo enkulu kuphela yezikhathi eziyinhloko ingahlungwa kuphela I-Harmonics, noma ngenxa yezinsalela ezifanayo, ama-harmonics akhulisayo; ukuxhumana phakathi kokuhlunga kanye nesinxephezelo esisebenzayo kanye nokulawula ingcindezi; njengoba i-current igeleza kusihlungi, ingabangela ukusebenza okugcwele kakhulu kwezinto zokusebenza; Izinto ezisetshenziswayo zikhulu kakhulu, isisindo nomthamo kukhulu; ukuzinza kokusebenza kubi. Ngakho-ke, isihlungi esisebenzayo esisebenza kangcono sinezinhlelo zokusebenza eziningi.
Singakwazi futhi ukwenza ngokwezifiso izingxenye ze-rf passive ngokuya ngezidingo zakho. Ungafaka ikhasi lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.
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Isikhathi sokuthumela: Feb-09-2022
