Sichuan Keenlion Tignoolajiyada Microwave——Shaandhaynta
Sichuan Keenlion Tiknoolajiyada Microwave ee la aasaasay 2004, Sichuan Keenlion Mircrowave teknoolajiyada CO., Ltd. waa soo saaraha ugu horreeya ee qaybaha Mircrowave Passive ee Sichuan Chengdu, Shiinaha.
Waxaan bixinaa wax qabad heer sare ah qaybaha mirrowave iyo adeegyada la xidhiidha codsiyada microwave ee gudaha iyo dibaddaba. Alaabooyinku waa kuwo kharash-ool ah, oo ay ku jiraan awood qaybiye kala duwan, lamaanayaasha jihada, filtarrada, isku-dariyeyaasha, duplexers, qaybaha dadban ee la habeeyey, go'dooyeyaasha iyo wareegayaasha. Alaabadayada waxaa si gaar ah loogu talagalay deegaan iyo heerkul aad u daran. Qeexitaannada waxaa loo qaabayn karaa iyadoo loo eegayo shuruudaha macaamiisha waxaana lagu dabaqi karaa dhammaan xargaha soo noqnoqda ee caadiga ah iyo kuwa caanka ah ee leh xajmiyada kala duwan ee DC ilaa 50GHz.
Shaandheeyaha ayaa si wax ku ool ah u shaandheyn kara inta jeer ee soo noqnoqoshada gaarka ah ee xadhkaha korantada ama inta jeer ee aan ka ahayn barta inta jeer ee ay joogto, waxa uu heli karaa isha isha tamarta ee soo noqnoqoshada gaar ah, ama waxa uu meesha ka saarayaa calaamad tamareed gaar ah.
Hordhac
Shaandheeyaha waa qalab doorasho kaas oo u oggolaanaya qaybta soo noqnoqda ee gaarka ah ee calaamadda in la dhaafo, iyo qaybaha kale ee soo noqnoqda ayaa si weyn loo yareeyey. Saamaynta doorashadan iyadoo la adeegsanayo shaandhada waxaa laga sifeyn karaa buuqa faragelinta ama samaynta falanqaynta spectrum. Si kale haddii loo dhigo, waxaa loo yaqaan shaandheyn sababi karta qayb ka mid ah soo noqnoqoshada calaamadda si ay u gudubto, oo aad u yaraysay ama u joojiso qaybaha kale ee soo noqnoqda. Shaandheeyaha waa qalab lagu sifeeyo mawjada. "Wave" waa fikrad jireed oo aad u ballaaran, dhinaca farsamada elektaroonigga ah, "mawjada" ayaa si ciriiri ah u xaddidan habka soo saarista qiimaha tirada jirka ee kala duwan waqti ka dib. Habka waxa loo beddelaa shaqo wakhti ah oo danab ah ama hadda iyada oo loo marayo tiro jireed oo kala duwan, ama calaamado. Maadaama wakhtiga is-beddelka ahi uu yahay qiime joogto ah, waxaa loo yaqaannaa calaamad waqti joogto ah, waxaana caadi ahaan loogu yeeraa calaamad analog ah.
Shaandhaynta waa fikrad muhiim ah oo ka mid ah habaynta signalada, iyo shaqada shaandhaynta wareegga ee danab korantada DC waa in la yareeyo qaybta AC ee danab DC sida ugu macquulsan, xajisto ay ka kooban DC, si wax soo saarka korantada coefficient la hoos u, qaab mawjado noqdo siman.
Tisaga ayaa ugu muhiimsan:
Inta jeer ee xarunta: Inta jeer ee f0 ee baska shaandhada, guud ahaan qaado f0 = (f1 + f2) / 2, f1, f2 sida baska band ama shaandhada iska caabbinta band ee bidix, midig ka soo horjeeda 1 dB ama 3DB barta soo noqnoqda. Shaandheeyaha cidhiidhiga ahi wuxuu inta badan xisaabiyaa xadhkaha xadhkaha baska oo leh meesha ugu yar ee luminta galinta.
kama dambaysta Waxa loola jeedaa dariiqa loo maro marinka baaska shaandhada hoose ee ka gudubka iyo ka gudubka shaandhada sare ee baska. Caadi ahaan waxaa lagu qeexaa barta khasaaraha qaraabada ah ee 1 dB ama 3DB. Tixraaca tixraaca ee qaraabada khasaaraha waa: kaarka hoose wuxuu ku salaysan yahay galinta DC, iyo Qualcomm waxay ku salaysan tahay inta jeer ee baaska sare ee ku filan ee falinka dulinka.
Baadhitaanka xadhkaha goosadka: waxa loola jeedaa ballaca spectrum loo baahan yahay si loo gudbo, BW = (F2-F1). F1, F2 waxay ku salaysan tahay luminta galinta inta jeer ee F0.
Luminta Gelida: Iyadoo ay ugu wacan tahay hordhaca shaandhada jawiga calaamadda asalka ah ee wareegga, khasaaraha dhexda ama inta jeer ee goynta, sida loo baahan yahay in la helo dhammaan khasaaraha band si loo xoojiyo.
Ripple: Waxa loola jeedaa 1DB ama 3DB bandwidth (inta jeer ee la gooyey), khasaaraha gelintu wuxuu beddelaa heerka ugu sarreeya ee inta jeer ee luminta celceliska qalooca.
Isbeddellada gudaha: Gelida luminta ee dhexda iyada oo loo marayo band oo leh kala duwanaansho soo noqnoqda. Isbeddelka band ee xawaaraha 1db waa 1db.
heeganka gudaha Cabbir in calaamada ku jirta baaska shaandhada ku jirta ay wanaagsan tahay si ay ula mid noqoto gudbinta. Isu-dheelitirnaan ku habboon VSWR = 1: 1, VSWR way ka weyn tahay 1 marka ay ismaan-dhaaf la'aan. Shaandhaynta dhabta ah, bandwidth qanciya VSWR wuu ka yar yahay 1.5: 1 guud ahaan wuu ka yar yahay BW3DB, kaas oo xisaabiya saamiga BW3DB iyo amarka shaandhaynta oo geliso khasaare.
Dildilaaca Tirada decibels (DB) ee awoodda gelinta signalka dekedda iyo awoodda muuqata waxay la mid tahay 20 Log 10ρ, ρ waa iskudhaf milicsiga danab. Khasaaraha soo laabashadu waa mid aan xad lahayn marka awoodda wax gelinta ay nuugo dekeddu.
Soo saarista xakamaynta xariijimaha: tilmaame muhiim ah oo tayada waxqabadka xulashada shaandhada. Mar kasta oo tilmaamuhu uu sarreeyo, way fiicnaan doontaa xakamaynta calaamadda faragelinta dibadda. Inta badan waxaa jira laba nooc oo soo jeedin ah: Habka lagu xakameynayo inta DB ee xannibaadda inta jeer ee ka gudubka band, habka xisaabinta waa FS hoos u dhac; tilmaame kale oo loogu talagalay soo jeedinta dunta shaandhada calaamadda iyo habka ugu habboon ee leydi-xagalka ah (KXDB way ka weyn tahay 1), KXDB = BWXDB / BW3DB, (X waxay noqon kartaa 40dB, 30dB, 20DB, iwm.). Laydi badan oo leydi ah, ayaa sare u kacaya leydi - taas oo ah, u dhowaanshaha qiimaha ku habboon 1, iyo dhibka samaynta wax soo saarka ayaa dabcan ka weyn.
Dib u dhac: Calaamaduhu waxa ay tilmaamayaan wakhtiga loo baahan yahay in calaamaduhu gudbiso inta jeer ee shaqada wejiga, taas oo ah, TD = DF/DV.
linearity wejiga in-band: Shaandheynta tilmaamta tilmaameheedu waa qallooca wejiga ee calaamadda la kala qaado ee ku dhex jirta baaska. Shaandheeyaha u qaabeeyay shaqada jawaabta wajiga toosan ayaa leh toosnaan waji oo wanaagsan.
Kala soocida ugu weyn
Waxaa loo qaybiyaa shaandhada analoogga ah iyo shaandhada dhijitaalka ah iyadoo loo eegayo calaamada la shaqaynayo.
Maritaanka marinka shaandhada dadban waxa loo qaybiyaa baas hoose, baas sare, baasas, iyo shaandhada dhammaan-baaska.
Shaandheeyaha baaska hooseeya:waxay u ogolaataa qaybaha hoose ama qaybaha DC ee calaamada in la gudbiyo, la xakameeyo qaybaha soo noqnoqda sare ama faragelinta iyo buuqa;
Shaydh-baas sare: waxay u ogolaataa qaybaha soo noqnoqda sare ee calaamada in la gudbiyo, la xakameeyo inta jeer ee hooseeya ama qaybaha DC;
Shaandheynta Gudubka Band: Waxay ogolaataa in calaamadaha la gudbiyo, calaamadaha la xakameeyey, faragelinta, iyo buuqa ka hooseeya ama ka sarreeya band;
Shaandheeyaha dhuuban: Waxay xakameysaa calaamadaha ku dhex jira koox soo noqnoqota oo u oggolaanaysa calaamado aan ahayn kooxda, oo sidoo kale loo yaqaan filter-ka.
Shaydh-dhammaan-dhaaf ah: Filter-baas buuxa macnaheedu waa in baaxadda calaamaduhu aysan isbeddelin gudaha xadka buuxa, taas oo ah, faa'iidada baaxadda ee qiyaasta buuxda waxay la mid tahay 1. Guud ahaan filtarrada guud ee dhammaanba waxaa loo isticmaalaa marxaladda wejiga, taas oo ah, marxaladda calaamadda gelinta isbeddelka, iyo fikradda waa in isbeddelka wejiga uu la siman yahay inta jeer, taas oo u dhiganta nidaamka dib u dhigista wakhtiga.
Labada qaybood ee la isticmaalay labaduba waa filtarrada dadban iyo kuwa firfircoon labadaba.
Iyada oo ku xidhan meelaynta filtarka, guud ahaan waxa loo qaybiyaa filter saxan iyo filter panel.
Sabuuradda, ku rakib sabuurad, sida PLB, filter JLB taxane ah. Faa'iidooyinka shaandhayntani waa mid dhaqaale, faa'iido-darraduna waa in shaandhaynta soo noqnoqoshada badan aysan wanaagsanayn. Sababteeda ugu weyn waa:
1. Ma jiro wax go'doon ah oo u dhexeeya gelinta iyo soo saarista shaandhada, taas oo u nugul isku-xidhka;
2, impedance grounding filter ma aha mid aad u hooseeya, daciifiyay saamaynta soo noqnoqda sare;
3, qayb ka mid ah isku xirka shaandhada iyo shasigu waxay dhalin doontaa laba saameynood oo xun: mid waa faragelinta korantada ee booska gudaha ee chassis-ka, kaas oo si toos ah loogu soo jiido khadkan, oo weheliya fiilada, oo iftiimiya shaandhada iyada oo la adeegsanayo shucaaca fiilada. Fashilan; Midda kale waa in faragelinta dibadda lagu sifeeyo filter filter ee guddiga, ama shucaaca ayaa si toos ah ama si toos ah u soo baxa wareegga wareegga wareegga, taasoo keenta dhibaatooyin xasaasi ah;
Taarikada isku shaandhaynta, isku xidhayaasha filtarrada iyo filtarrada guddiyada kale ayaa guud ahaan lagu dhejiyaa guddida birta ah ee chassis-ka gaashaanka. Maadaama si toos ah loogu rakibay birta birta ah, wax-soo-saarka iyo soo-saarka shaandhada ayaa si buuxda u go'doonsan, dhulku si fiican ayaa loo dhisay, faragelinta fiilada waxaa lagu sifeeyaa dekedda chassis, sidaas darteed saameynta shaandhaynta waa mid aad u fiican.
Filter-ka dadban waa wareege filter ah oo ka faa'iidaysanaya iska caabin, reactor, iyo qayb capacitor ah. Marka inta jeer ee resonant, qiimaha impedance wareegga waa yar yahay, iyo impedance wareegga waa weyn yahay, qiimaha qaybta wareegga waxaa lagu hagaajiyaa si joogto ah harmonic feature, iyo hadda harmonic waa la sifeyn karaa; Marka dhawr jeer oo is-waafajin ah Wareegga hagaajintu uu ka kooban yahay, ka dib qaabka u dhigma inta jeer ee iswaafajinta waa la sifayn karaa, iyo shaandhaynta tirada ugu weyn ee harmonic (3, 5, 7) waxaa lagu gaaraa bypass impedance hoose. Mabda'a ugu muhiimsan waa tirada kala duwan ee harmonics, naqshadeynta soo noqnoqoshada harmonic waa yar yahay, gaaritaanka saamaynta kala qaybsanaanta hadda harmonic, siinta marin marin for prefiltered harmonics sare prefiltered si loo gaaro mowjadda nadiifinta.
Shaandhaynta dadban waxaa loo qaybin karaa filtarrada awoodda leh, wareegyada shaandhaynta warshadda korontada, wareegyada shaandhaynta L-RC, wareegyada filterka RC-qaabeeya, wareegyada filterka RC ee qaybo badan, iyo π-qaabeeya wareegyada shaandhaynta LC. Riix si aad u shaqayso shaandheynta hal hagaajinta ah, shaandhada labba hagaajinta, iyo shaandhada gudbinta sare. Shaandheeyaha dadban wuxuu leeyahay faa'iidooyinka soo socda: qaab-dhismeedku waa mid fudud, kharashka maalgashiga waa yar yahay, iyo qaybta falcelinta ee nidaamka ayaa magdhow u ah qodobka awoodda ee nidaamka. Waxay wanaajisaa qodobka awoodda ee shabagga; xasiloonida shaqadu waa mid sareysa, dayactirku waa mid sahlan, korriinka farsamada, iwm. Waxaa si ballaaran loo isticmaalaa. Waxaa jira dhinacyo badan oo ka mid ah cilladaha filtarrada dadban: saameynta xuduudaha korantada korantada, qiimaha xannibaadda nidaamka iyo tirada ugu weyn ee soo noqnoqoshada resonant waxay inta badan isbeddelaan sida xaaladaha shaqada; shaandheynta harmonic waa cidhiidhi, kaliya tirada ugu weyn ee jeer ee ugu muhiimsan oo kaliya ayaa lagu sifeyn karaa Harmonics, ama ay sabab u tahay hadhaaga is barbar socda, xoojinta harmonics; iskudubarid ka dhexeeya shaandhaynta iyo magdhowga falcelinta iyo xakamaynta cadaadiska; sida hadda uu ku dhex qulqulayo shaandhada, waxay keeni kartaa culays xad dhaaf ah oo qalabka ah; Alaabta la isticmaalo ayaa aad uga weyn, miisaanka iyo mugga ayaa weyn; xasiloonida hawleed ayaa liidata. Sidaa darteed, filtar firfircoon oo leh waxqabad wanaagsan waa codsiyo badan oo badan.
Waxaan sidoo kale u habeyn karnaa qaybaha rf dadban sida waafaqsan shuruudahaaga. Waxaad geli kartaa bogga habaynta si aad u bixiso qeexitaannada aad u baahan tahay.
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Waqtiga boostada: Febraayo-09-2022
