Sichuan Keenlion Microwave Technology——Izihluzi
I-Sichuan Keenlion Microwave Technology Yasekwa ngo-2004, iSichuan Keenlion Mircrowave techenology CO., Ltd. ngumenzi okhokelayo wamacandelo ePassive Mircrowave eSichuan Chengdu, eChina.
Sinikezela ngamacandelo e-mirrowave asebenza kakhulu kunye neenkonzo ezinxulumene noko kwizicelo ze-microwave ekhaya naphesheya. Iimveliso azibizi kakhulu, kubandakanya ukwahlula amandla okwahlukeneyo, ii-couplers ezikhokelayo, izihluzi, izihlanganisi, ii-duplexers, iikhomponenti ezenziwe ngokwezifiso, i-isolator kunye neesetyhula. Iimveliso zethu ziyilelwe ngokukodwa iimeko ezahlukeneyo ezingqongileyo kunye namaqondo obushushu. Iinkcukacha zinokuqulunqwa ngokweemfuno zabathengi kwaye zisebenza kuzo zonke iibhendi eziqhelekileyo kunye nezidumileyo ezinamaza ohlukeneyo ukusuka kwi-DC ukuya kwi-50GHz.
Isihluzi sinokuhluza ngokufanelekileyo ukuphindaphinda kwefrikhwensi ethile kwintambo yamandla okanye ukuphindaphinda ngaphandle kwendawo yefrikhwensi, sifumane isignali yomthombo wamandla wefrikhwensi ethile, okanye siphelise isignali ethile yamandla.
Intshayelelo
Isihluzi sisixhobo sokukhetha esivumela inxalenye ethile yefrikhwensi kwisignali ukuba igqithiswe, kunye namanye amalungu efrikhwensi athotywe kakhulu. Esi siphumo sokhetho sisebenzisa isihluzo sinokuhluzwa kwingxolo yokuphazamiseka okanye ukwenza uhlalutyo lwe-spectrum. Ngamanye amazwi, ibizwa ngokuba sisihluzo esinokubangela ukuba inxalenye ethile yefrikhwensi kuphawu idlule, kwaye ithotywe kakhulu okanye icinezele amanye amalungu efrikhwensi. Isihluzi sisixhobo esihluzwa ngamaza. "I-Wave" yingcamango yomzimba ebanzi kakhulu, kwintsimi yeteknoloji ye-elektroniki, "i-wave" inqunyelwe ngokuncinci kwinkqubo yokukhupha ixabiso lezinto ezahlukeneyo zomzimba ngokuhamba kwexesha. Inkqubo iguqulwa ibe ngumsebenzi wexesha le-voltage okanye yangoku ngokusebenzisa ubuninzi bezinto eziphathekayo, okanye izibonakaliso. Ekubeni ixesha lokuzitshintsha liyixabiso eliqhubekayo, libizwa ngokuba ngumqondiso wexesha eliqhubekayo, kwaye libizwa ngokuqhelekileyo njengesignali ye-analog.
Ukuhluza ingcamango ebalulekileyo ekusetyenzweni komqondiso, kunye nomsebenzi wokucoca isekethe kwi-DC voltage regulator kukunciphisa icandelo le-AC kumbane we-DC kangangoko kunokwenzeka, ukugcina isithako sayo se-DC, ukwenzela ukuba i-coefficient ye-voltage ripple yemveliso ithotywe, i-waveform ibe yi-Smooth.
Tiiparameters eziphambili:
Ukuphindaphinda kombindi: Ifrikhwensi f0 yesihluzo sokugqitha, thatha ngokubanzi f0 = (f1 + f2) / 2, f1, f2 njengebhendi yokudlula okanye isihluzo sokumelana nebhendi ekhohlo, ekunene ngokuchasene ne-1 dB okanye i-3DB edge frequency point. Isihluzi se-narrowband sihlala sibala i-bandwidth yebhendi kunye neyona ndawo incinci yelahleko yokufaka.
Umhla wokugqibela: Ibhekisa kumendo wendlela yepasile yesihluzo sokupasa esisezantsi kunye nebhendi yokupasa yesihluzo sokupasa okuphezulu. Ngokuqhelekileyo ichazwa kwindawo yokulahlekelwa kwesalamane ye-1 dB okanye i-3DB. Isalathiso sereferensi yereferensi yelahleko yile: ukupasa okuphantsi kusekwe kufakelo lwe-DC, kwaye i-Qualcomm isekwe kwi-high-pass frequency eyaneleyo ye-parasitic strip.
I-Passband bandwidth: ibhekisela kububanzi be-spectrum obufunekayo ukudlula, i-BW = (F2-F1). I-F1, i-F2 isekelwe kwilahleko yokufaka kwi-frequency center F0.
Ilahleko yokufaka: Ngenxa yokungeniswa kwesihluzi kwiatmosfera yesiginali yentsusa kwisekethe, ilahleko embindini okanye i-cutoff frequency, efunekayo ukuba ibenayo yonke ilahleko yebhendi ukugxininisa.
I-Ripple: Kubhekiselele kwi-1DB okanye i-3DB bandwidth (i-cutoff frequency) uluhlu, ilahleko yokufaka iguqula i-peak of frequency on the loss mean curve.
Ukuguquguquka kwangaphakathi: Ilahleko yokufaka kwi- through band enezahluko zamaza. Ukuguquguquka kwebhendi kwi-1db bandwidth yi-1db.
I-standby engaphakathi: Linganisa ukuba umqondiso kwi-passband kwisihluzi kulungile ukuhambelana nokuhanjiswa kokudluliselwa. Umdlalo ofanelekileyo weVSWR = 1: 1, i-VSWR inkulu kune-1 xa ingafani. Kwi-filter yangempela, i-bandwidth eyanelisayo i-VSWR ingaphantsi kwe-1.5: i-1 ngokuqhelekileyo ingaphantsi kwe-BW3DB, echaza umlinganiselo we-BW3DB kunye nomyalelo wokucoca kunye nokufaka ilahleko.
Ilahleko yophahla: Inani lee-decibels (DB) umlinganiselo we-port yesignali yokufakelwa kwamandla kunye namandla abonakalisiweyo alingana ne-20 Log 10ρ, ρ yi-coefficient yokubonisa umbane. Ilahleko yembuyekezo ayinasiphelo xa igalelo lamandla lifunxwa lizibuko.
Ukuveliswa kwakhona koxinzelelo lwe-strip: isalathisi esibalulekileyo somgangatho womsebenzi wokhetho lokucoca. Ukuphakama kwesalathisi, kungcono ukunyanzeliswa kwesignali yokuphazamiseka kwangaphandle. Kudla ngokubakho iindidi ezimbini zesindululo: indlela yokucinezela ingakanani i-DB inhibition yebhendi enikiweyo yokuwela frequency fs, indlela yokubala yiFS yehla; esinye isalathisi sesiphakamiso sesimboli sokucoca ukuthunga kunye nendlela efanelekileyo yoxande - i-coefficient yoxande (i-KXDB inkulu kuno-1), i-KXDB = BWXDB / BW3DB, (X ingaba yi-40dB, 30dB, 20DB, njl.). I-rectangles engaphezulu, i-rectangular ephezulu - oko kukuthi, ukusondela kwixabiso elifanelekileyo le-1, kunye nobunzima bokwenza imveliso ngokuqinisekileyo inkulu.
Ukulibazisa: Umqondiso ubhekisela kwixesha elifunekayo ukuze umqondiso udlulise umsebenzi wesigaba se-diagonal frequency, oko kukuthi, TD = DF / DV.
Umgca wenqanaba elingaphakathi: Esi sihluzo sophawu lwesalathisi kukuphazamiseka kwesigaba somqondiso ogqithisiweyo kwi-passband. Icebo lokucoca eliyilwe ngumsebenzi wempendulo yesigaba somgca sinesigaba esilungileyo somgca.
Ukuhlelwa okuphambili
Ukwahlulwe kwisihluzo se-analog kunye nesihluzo sedijithali ngokomqondiso ocutshungulwayo.
Ipaseji yendlela yesihluzo esenziwayo yahlulwe yaba yipasi esezantsi, ipasi ephezulu, ibhendi yokudlula, kunye nesihluzo sokugqitha konke.
Isihluzi sokudlula okusezantsi:ivumela i-low-frequency okanye amacandelo e-DC kwisiginali ukuba idluliswe, ukucinezela amacandelo aphezulu okanye ukuphazamiseka kunye nengxolo;
Isihluzi sokuphumelela okuphezulu: ivumela amacandelo aphezulu e-frequency kwisiginali ukuba igqithiswe, icinezele i-frequency ephantsi okanye amacandelo e-DC;
Isihluzo seBand Pass: Ivumela imiqondiso ukuba idluliswe, imiqondiso ecinezelweyo, ukuphazamiseka, kunye nengxolo engezantsi okanye ngaphezulu kwebhendi;
Isihluzi sebhanti: Icinezela imiqondiso ngaphakathi kwebhendi ethile yefrikhwensi ivumela imiqondiso ngaphandle kwebhendi, ekwabizwa ngokuba sisihluzo senotshi.
Isihluzi sokudlula zonke: Isihlungi esipheleleyo sithetha ukuba i-amplitude yesiginali ayiyi kutshintsha ngaphakathi koluhlu olupheleleyo, oko kukuthi, inzuzo ye-amplitude yoluhlu olupheleleyo ilingana ne-1. Iifilitha eziqhelekileyo zonke zisetyenziselwa isigaba sesigaba, oko kukuthi, isigaba sokutshintshwa kwesignali yegalelo, kwaye into efanelekileyo kukuba ukutshintshwa kwesigaba kuhambelana nokuphindaphinda, elilingana nenkqubo yokulibaziseka kwexesha.
Zombini izixhobo ezisetyenzisiweyo zizihluzo ezisebenzayo nezisebenzayo.
Ngokuxhomekeke ekubekweni kwecebo lokucoca, ngokuqhelekileyo lahlulahlulwe kwipleyiti yokucoca kunye nepaneli yokucoca.
Ebhodini, faka ebhodini, njenge-PLB, i-JLB series filter. Iingenelo zesi sihluzo zinoqoqosho, kwaye i-disadvantage kukuba ukuhluza amaza amaninzi akulunganga. Esona sizathu sayo kukuba:
1. Akukho nto yodwa phakathi kwegalelo kunye nemveliso yesihluzi, esilungele ukudibanisa;
I-2, i-impedance yokumisa isihluzi ayiphantsi kakhulu, yenza buthathaka isiphumo sokudlula amaza amaninzi;
I-3, iqhekeza lokudibanisa phakathi kwesihluzo kunye ne-chassis iya kuvelisa iziphumo ezimbini ezibi: enye i-electromagnetic interference yendawo yangaphakathi ye-chassis, eyenziwa ngokuthe ngqo kulo mgca, ecaleni kwentambo, kwaye isasaze isihluzo ngokusebenzisa i-cable radiation. Ukusilela; enye kukuba ukuphazamiseka kwangaphandle kuhluzwa ngesihluzo sokucoca ebhodini, okanye i-radiation yenziwa ngokuthe ngqo okanye ngokuthe ngqo kwisekethe kwibhodi yesiphaluka, okubangela iingxaki zobuntununtunu;
Iipleyiti zoluhlu lwesihluzi, izihlanganisi zesihluzi kunye nezinye izihluzi zepaneli zihlala zixhonywe kwipaneli yesinyithi yetshiesisi ekhuselayo. Ekubeni ifakwe ngokuthe ngqo kwipaneli yentsimbi, igalelo kunye nemveliso yesihluzi yodwa ngokupheleleyo, umhlaba usekelwe kakuhle, kwaye ukuphazamiseka kwintambo kuhluzwa phezu kwe-chassis port, ngoko ke umphumo wokucoca ulungile.
Isihluzo sokwenziwa sisihluzo sesekethe esebenzisa isichasi, ireactor, kunye necapacitor component. Xa i-resonant frequency, ixabiso le-impedance yesiphaluka lincinci, kwaye i-impedance yesiphaluka inkulu, ixabiso lecandelo lesiphaluka lihlengahlengiswa kwi-frequency ye-harmonic frequency, kwaye i-harmonic current inokucoca ngaphandle; xa iifrikhwensi ezininzi ze-harmonic Isekethe ye-tuning iqulunqwe, emva koko uphawu oluhambelanayo lwe-harmonic frequency lunokuhluzwa, kunye nokucoca inani eliphambili le-harmonic (3, 5, 7) liphunyezwa ngokudlula okuphantsi kwe-impedance. Umgaqo-siseko uphambili inani ezahlukeneyo harmonics, ukuyila i-harmonic frequency lincinci, ukuphumeza isiphumo ukwahlula ye-harmonic lwangoku, ukubonelela ngepaseji bypass for prefiltered high harmonics ukufezekisa ukuhlanjululwa kwamaza.
Izihluzi ze-Passive zinokwahlulwa zibe zizihluzi ze-capacitive, iisekethe zokucoca isityalo sombane, iisekethe zokucoca i-L-RC, iisekethe zokucoca i-RC ezinokwakheka kwe-π, iisekethe zokucoca i-RC enamacandelo amaninzi, kunye neesekethe zokucoca ze-LC ezinokwakheka kwe-π. Cinezela ukuze usebenze kwisihluzi sokulungisa esinye, isihluzo sokulungisa kabini, kunye nesihluzo sokupasa okuphezulu. Isihluzo se-passive sineenzuzo ezilandelayo: isakhiwo silula, iindleko zotyalo-mali ziphantsi, kunye necandelo elisebenzayo kwinkqubo inokuhlawula amandla ombane kwinkqubo. Iphucula amandla ombane wegridi; ukuzinza kokusebenza kuphezulu, ukugcinwa kulula, ukuvuthwa kobugcisa, njl. Kusetyenziswa ngokubanzi. Kukho iinkalo ezininzi zeentsilelo zeefilitha ze-passive: impembelelo yeeparamitha zegridi yamandla, ixabiso le-impedance yenkqubo kunye nenani eliphambili lee-resonant frequencies zihlala zitshintsha njengeemeko zokusebenza; isihluzi se-harmonic sincinci, kuphela inani eliphambili lamaxesha aphambili anokucoca kuphela i-Harmonics, okanye ngenxa yeentsalela ezihambelanayo, i-harmonics yokukhulisa; ulungelelwaniso phakathi kohluzo kunye nembuyekezo esebenzayo kunye nolawulo loxinzelelo; njengoko umbane uqukuqela kwisihluzi, unokubangela umsebenzi ogqithisileyo wesixhobo; Izinto ezisetyenziswayo zikhulu kakhulu, ubunzima kunye nomthamo zikhulu; uzinzo lokusebenza buthathaka. Ngoko ke, isihluzo esisebenzayo esinokusebenza okungcono sisebenza ngakumbi nangakumbi.
Sisenokwenza ngokwezifiso amalungu e-rf passive ngokweemfuno zakho. Ungangenisa iphepha lokulungiselela ukubonelela ngeenkcukacha ozifunayo.
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Ixesha lokuposa: Feb-09-2022
