Ubuchwepheshe be-Microwave be-Sichuan Keenlion——Izihlungi
Ubuchwepheshe be-Microwave beSichuan Keenlion Obusungulwe ngo-2004, i-Sichuan Keenlion Mircrowave techenology CO., Ltd. ingumkhiqizi ohamba phambili wezingxenye ze-Passive Mircrowave eSichuan Chengdu, eShayina.
Sinikeza izingxenye ze-mirrowave ezisebenza kahle kakhulu kanye nezinsizakalo ezihlobene nezinhlelo zokusebenza ze-microwave ekhaya nakwamanye amazwe. Imikhiqizo ishibhile, kufaka phakathi i-power divider ehlukahlukene, ama-directional couplers, ama-filters, ama-combiners, ama-duplexers, izingxenye ezingasebenzi ezenziwe ngokwezifiso, ama-isolators nama-circulator. Imikhiqizo yethu yenzelwe ngokukhethekile izindawo ezahlukene kanye namazinga okushisa aphezulu. Imininingwane ingakhiwa ngokuya ngezidingo zamakhasimende futhi isebenza kuwo wonke ama-frequency band ajwayelekile nathandwayo anama-bandwidth ahlukahlukene kusukela ku-DC kuya ku-50GHz.
Isihlungi singahlunga ngempumelelo imvamisa yemvamisa ethile entanjeni kagesi noma imvamisa ngaphandle kwephuzu lemvamisa, sithole isignali yomthombo wamandla yemvamisa ethile, noma siqede isignali yamandla yemvamisa ethile.
Isingeniso
Isihlungi siyidivayisi yokukhetha evumela ukuthi ingxenye ethile yemvamisa esignalini idluliswe, kanti ezinye izingxenye zemvamisa zincishiswe kakhulu. Lo mphumela wokukhetha usebenzisa isihlungi ungahlungwa uphume emsindweni wokuphazamiseka noma wenze ukuhlaziywa kwe-spectrum. Ngamanye amazwi, kubizwa ngokuthi isihlungi esingabangela ukuthi ingxenye ethile yemvamisa esignalini idlule, futhi sincishiswe kakhulu noma sicindezele ezinye izingxenye zemvamisa. Isihlungi siyidivayisi ehlungwa yigagasi. "Igagasi" liwumqondo obanzi kakhulu, emkhakheni wobuchwepheshe be-elekthronikhi, "igagasi" lilinganiselwe kancane enkambisweni yokukhipha inani lamanani ahlukahlukene angokwenyama ngokuhamba kwesikhathi. Inqubo iguqulwa ibe umsebenzi wesikhathi we-voltage noma wamanje ngokusebenzisa amanani ahlukahlukene angokwenyama, noma amasignali. Njengoba isikhathi esiguquguqukayo siyinani eliqhubekayo, sibizwa ngokuthi isignali yesikhathi eqhubekayo, futhi ngokujwayelekile sibizwa ngokuthi isignali ye-analog.
Ukuhlunga kuwumqondo obalulekile ekucutshungulweni kwesignali, futhi umsebenzi wesekethe yokuhlunga kumlawuli we-DC voltage ukunciphisa ingxenye ye-AC ku-voltage ye-DC ngangokunokwenzeka, ukugcina isithako sayo se-DC, ukuze i-coefficient ye-voltage yokukhipha yehliswe, i-waveform ibe yi-Smooth.
Tamapharamitha ayinhloko:
Imvamisa ephakathi: Imvamisa f0 ye-passband yesihlungi, ngokuvamile ithatha i-f0 = (f1 + f2) / 2, f1, f2 njengesihlungi sokumelana nebhendi kwesobunxele, kwesokudla maqondana nephuzu lemvamisa yomphetho ongu-1 dB noma we-3DB. Isihlungi se-narrowband sivame ukubala i-bandwidth yebhendi ye-passband enephuzu elincane kakhulu lokulahlekelwa kokufakwa.
Isikhathi sokugcina: Kubhekisela endleleni eya endleleni ye-passband yesihlungi se-low pass kanye ne-passband yesihlungi se-high pass. Ngokuvamile kuchazwa endaweni yokulahlekelwa okuhlobene engu-1 dB noma i-3DB. Ukulahlekelwa okuhlobene kwesithenjwa sesithenjwa sesithenjwa yilokhu: i-low pass isekelwe ekufakweni kwe-DC, kanti i-Qualcomm isekelwe emvamisa eyanele ye-high-pass yesicubu se-parasitic.
Ububanzi be-passband: bubhekisela ebubanzi be-spectrum obudingekayo ukuze kudlule, BW = (F2-F1). F1, F2 isekelwe ekulahlekelweni kokufakwa ku-frequency ephakathi F0.
Ukulahlekelwa kokufakwa: Ngenxa yokwethulwa kwesihlungi emoyeni wesiginali yokuqala kusekethe, ukulahlekelwa okuphakathi noma imvamisa yokusika, njengokudingekayo ukuze kube nokulahlekelwa kwebhendi yonke okugcizelelwe.
Ukuqhuma: Kubhekisele kububanzi be-bandwidth ye-1DB noma ye-3DB (imvamisa yokusika), ukulahlekelwa kokufakwa kushintshashintsha inani eliphakeme lemvamisa ku-curve ephakathi yokulahleka.
Ukuguquguquka kwangaphakathi: Ukulahlekelwa kokufakwa kwebhendi edlulayo ngokushintshashintsha kwemvamisa. Ukuguquguquka kwebhendi ku-bandwidth ye-1db kuyi-1db.
Ukulinda okungaphakathi kwebhendi: Linganisa ukuthi isignali ebhendini lokudlulisa esihlungini ilungele yini ukufana nokudluliswa kokudlulisela. Okufanelekile I-VSWR = 1: 1, i-VSWR inkulu kune-1 uma ingafani. Kwisihlungi sangempela, i-bandwidth eyanelisa i-VSWR ingaphansi kwe-1.5: 1 ngokuvamile ingaphansi kwe-BW3DB, ebala isilinganiso se-BW3DB kanye nokuhleleka kwesihlungi kanye nokulahlekelwa kokufakwa.
Ukulahlekelwa yi-roop: Inani lama-decibel (DB) ratios wamandla okufaka isignali ye-port kanye namandla abonakalisiwe lilingana no-20 Log 10ρ, i-ρ iyi-voltage reflection coefficient. Ukulahlekelwa kokubuya akunamkhawulo lapho amandla okufaka emuncwa yi-port.
Ukukhiqizwa kabusha kokucindezela kwe-strip: inkomba ebalulekile yekhwalithi yokusebenza kokukhetha isihlungi. Uma inkomba iphakeme, kulapho ukucindezelwa kwesignali yokuphazamiseka kwangaphandle kuba ngcono khona. Ngokuvamile kunezinhlobo ezimbili zesiphakamiso: indlela yokucindezela ukuthi kungakanani ukuvinjelwa kwe-DB kwemvamisa yokuwela ibhendi ethile i-fs, indlela yokubala iwukwehla kwe-FS; esinye isibonakaliso sesiphakamiso sokufakwa kwentambo yesihlungi sezimpawu kanye nendlela efanele yesikwele - i-coefficient engunxande (i-KXDB inkulu kune-1), i-KXDB = i-BWXDB / i-BW3DB, (i-X ingaba yi-40dB, i-30dB, i-20DB, njll.). Uma ama-rectangles amaningi, kulapho unxande uphakama khona - okungukuthi, kuseduze nenani elifanele 1, futhi ubunzima bokwenza umkhiqizo bukhulu impela.
Ukubambezeleka: Isignali ibhekisela esikhathini esidingekayo ukuze isignali idlulise imvamisa evundlile yomsebenzi wesigaba, okungukuthi, i-TD = DF / DV.
Ukulingana kwesigaba esingaphakathi kwebhendi: Lesi sihlungi sokulinganisa izinkomba siwukuhlanekezelwa kwesigaba sesignali edluliselwe ku-passband. Isihlungi esakhiwe umsebenzi wempendulo yesigaba esiqondile sinomugqa omuhle wesigaba.
Ukuhlukaniswa okuyinhloko
Ihlukaniswe yaba isihlungi se-analog kanye nesihlungi sedijithali ngokuya ngesignali ecutshungulwayo.
Indlela yokudlula kwesihlungi esingasebenzi ihlukaniswe ngokuthi i-low pass, i-high pass, i-bandpass, kanye nesihlungi se-all-pass.
Isihlungi sokudlula okuphansi:ivumela izingxenye zemvamisa ephansi noma ze-DC esignalini ukuthi zidluliswe, icindezele izingxenye zemvamisa ephezulu noma ukuphazamiseka nomsindo;
Isihlungi esidlula kakhulu: ivumela izingxenye zemvamisa ephezulu esignalini ukuthi zidluliswe, zicindezele izingxenye zemvamisa ephansi noma ze-DC;
Isihlungi se-Band Pass: Ivumela amasignali ukuthi adluliswe, kucindezelwe amasignali, kuphazanyiswe, futhi kuzwakale umsindo ngaphansi noma ngaphezulu kwebhendi;
Isihlungi esibambekayo: Icindezela amasignali ngaphakathi kwebhendi ethile yemvamisa ivumela amasignali ngaphandle kwebhendi, eyaziwa nangokuthi isihlungi se-notch.
Isihlungi se-All-pass: Isihlungi se-full-pass sisho ukuthi ubukhulu besiginali ngeke bushintshe ngaphakathi kobubanzi obugcwele, okungukuthi, inzuzo ye-amplitude yobubanzi obugcwele ilingana no-1. Izihlungi ezijwayelekile ze-all-pass zisetshenziselwa isigaba sesigaba, okungukuthi, isigaba soshintsho lwesiginali yokufaka, futhi okuhle ukuthi ukushintsha kwesigaba kuhambisana nemvamisa, okulingana nohlelo lokulibaziseka kwesikhathi.
Zombili izingxenye ezisetshenziswayo ziyizihlungi ezingasebenzi kanye nezisebenzayo.
Kuye ngokuthi isihlungi sibekwe kuphi, ngokuvamile sihlukaniswe sibe isihlungi sepuleti kanye nesihlungi sephaneli.
Ebhodini, faka ebhodini, njenge-PLB, isihlungi sochungechunge lwe-JLB. Izinzuzo zalesi sihlungi zingabizi, kanti ububi ukuthi ukuhlunga okuvama kakhulu akukuhle. Isizathu saso esiyinhloko:
1. Akukho ukuhlukaniswa phakathi kokufakwayo nokukhishwa kwesihlungi, okuvame ukuhlanganiswa;
2, ukuvimba kwesisekelo kwesihlungi akuphansi kakhulu, kwenze umphumela wokudlula kwemvamisa ephezulu ube buthaka;
3, ucezu lokuxhumana phakathi kwesihlungi kanye ne-chassis luzodala imiphumela emibi emibili: eyodwa ukuphazamiseka kwe-electromagnetic kwesikhala sangaphakathi se-chassis, okubangelwa ngqo kulo mugqa, eduze kwekhebula, bese kukhishwa isihlungi ngokusebenzisa imisebe yekhebula. Ukwehluleka; okunye ukuthi ukuphazamiseka kwangaphandle kuhlungwa yisihlungi sesihlungi ebhodini, noma imisebe ikhiqizwa ngqo noma ngqo kwisekethe ebhodini lesifunda, okubangela izinkinga zokuzwela;
Amapuleti e-filter array, izixhumi ze-filter kanye nezinye izihlungi zephaneli ngokuvamile zifakwa kuphaneli yensimbi ye-shielding chassis. Njengoba ifakwe ngqo kuphaneli yensimbi, okokufaka kanye nokukhipha kwesihlungi kuhlukanisiwe ngokuphelele, inhlabathi isekelwe kahle, futhi ukuphazamiseka kwekhebula kuhlungwa phezu kwe-chassis port, ngakho-ke umphumela wokuhlunga ulungile impela.
Isihlungi esingasebenzi siyisekethe yesihlungi esisebenzisa i-resistor, i-reactor, kanye nengxenye ye-capacitor. Uma imvamisa ye-resonant, inani le-impedance yesekethe lincane, futhi i-impedance yesekethe inkulu, inani lengxenye yesekethe lilungiswa kwimvamisa ye-harmonic yesici, futhi i-harmonic current ingahlungwa; lapho imvamisa eminingana ye-harmonic Isekethe yokulungisa yakhiwa, khona-ke imvamisa ye-harmonic yesici ehambisanayo ingahlungwa, futhi ukuhlunga i-harmonic yenombolo eyinhloko (3, 5, 7) kufezwa nge-impedance bypass ephansi. Umgomo oyinhloko ungowenani elihlukile lama-harmonic, ukuklama imvamisa ye-harmonic kuncane, kufeza umphumela wokuhlukaniswa kwe-harmonic current, kuhlinzeka ngendlela yokudlula yama-harmonic aphezulu ahlungiwe ngaphambilini ukuze kufezwe i-waveform yokuhlanzwa.
Izihlungi ezingasebenzi zingahlukaniswa zibe izihlungi ezikwazi ukuthwala amandla, izihlungi zezitshalo zamandla, izihlungi ze-L-RC, izihlungi ze-RC ezimise okwe-π, izihlungi ze-RC ezimise okwe-multi-section, kanye nezihlungi ze-LC ezimise okwe-π. Cindezela ukuze usebenze njengesihlungi sokuhlela esisodwa, isihlungi sokuhlela esikabili, kanye nesihlungi esidlula phezulu. Isihlungi esingasebenzi sinezinzuzo ezilandelayo: isakhiwo silula, izindleko zokutshalwa kwezimali ziphansi, kanti ingxenye esabelayo ohlelweni ingakhokhela amandla ohlelweni. Sithuthukisa amandla egridi; ukuzinza kokusebenza kuphezulu, ukugcinwa kulula, ukuvuthwa kobuchwepheshe, njll. Sisetshenziswa kabanzi. Kunezici eziningi zokushiyeka kwezihlungi ezingasebenzi: umthelela wamapharamitha egridi yamandla, inani le-impedance yesistimu kanye nenani eliyinhloko lama-resonant frequency avame ukushintsha njengoba izimo zokusebenza zishintsha; isihlungi se-harmonic sincane, inani eliyinhloko lezikhathi eziyinhloko kuphela elingahlungwa kuphela yi-Harmonics, noma ngenxa yezinsalela ezifanayo, ukukhulisa ama-harmonics; ukuxhumanisa phakathi kokuhlunga kanye nesinxephezelo esisabelayo kanye nokulawula ingcindezi; njengoba ugesi ugeleza ngesihlungi, kungabangela ukusebenza ngokweqile kwemishini; Izinto ezisetshenziswayo zikhulu kakhulu, isisindo kanye nomthamo kukhulu; ukuzinza kokusebenza kubi. Ngakho-ke, isihlungi esisebenzayo esisebenza kangcono siwukusetshenziswa okuningi.
Singakwazi futhi ukwenza ngezifiso izingxenye ze-rf passive ngokwezidingo zakho. Ungangena ekhasini lokwenza ngezifiso ukuze unikeze imininingwane oyidingayo.
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Isikhathi sokuthunyelwe: Feb-09-2022
