Izithandani eziqondisayo ziyizinto ezijwayelekile ze-microwave / millimeter wave engxenyeni ye-microwave kanye nezinye izinhlelo ze-microwave. Zingasetshenziselwa ukwehlukaniswa kwesiginali, ukwahlukana kanye nokuxuba, njengokuqapha amandla, umthombo wokuphuma kwamandla okuhlukaniswa amandla, njll. Kuyinto eqondile ye-microwave powerlider, futhi iyingxenye ebaluleke kakhulu kuma-swepturen-frequency ama-talviderense. Imvamisa, kunezinhlobo eziningana, ezifana ne-waveguide, umugqa we-coaxial, i-stripline, kanye ne-microSTRIP.
Umdwebo 1 ungumdwebo we-schematic wesakhiwo. Kuhlanganisa ikakhulukazi izingxenye ezimbili, i-mainline kanye nomugqa osizayo, okuhambisana nomunye ngezindlela ezahlukahlukene zezimbobo ezincane, ama-slits, nezikhala. Ngakho-ke, ingxenye yokufakwa kwamandla okuvela ku- "1" ekugcineni kwe-mainline izohlanganiswa emugqeni wesibili. Ngenxa yokuphazanyiswa noma amandla amagagasi, amandla azodluliselwa kuphela eceleni komugqa wesibili - okukodwa (okubizwa ngokuthi "Phambili"), kanti omunye akukho okudluliselwe kwamandla ku-oda elilodwa (okubizwa ngokuthi "ukubuyela emuva")
Umdwebo 2 yi-coupler eqondayo, elinye lamachweba ku-coupler lixhumeke kumthwalo wokuqhathanisa owakhelwe ngaphakathi.
Ukusetshenziswa kwe-coupler eqondayo
1, ngohlelo lwe-Power Synthesis
I-coupler eqondayo ye-3DB (eyaziwa kakhulu njengebhuloho le-3DB) ivame ukusetshenziswa kuhlelo lwenkampani yenethiwekhi yenkampani ethwala, njengoba kukhonjisiwe kwisibalo esingezansi. Lolu hlobo lwesifunda luvamile ezinhlelweni zangaphakathi ezisatshalaliswa. Ngemuva kwamasiko F1 kanye ne-F2 kusuka kumandla amabili ama-amplifiers adlula nge-3DB Directive Coupler, umphumela wesiteshi ngasinye uqukethe izingxenye ezimbili zemvamisa i-F1 ne-F2, futhi i-3DB yehlisa i-amplitude yengxenye ngayinye yemvamisa. Uma elinye lama-terminals okukhipha lixhumeke emthwalweni wokuthatha, okunye ukuphuma kungasetshenziswa njengomthombo wamandla wokulinganisa wokulinganisa kokuhlangana. Uma udinga ukuthuthukisa ukwehlukaniswa ngokuqhubekayo, ungangeza ezinye izingxenye ezinjengokuhlunga kanye nama-isolators. Ukuhlukaniswa kwebhuloho le-3DB elakhiwe kahle kungaba ngaphezu kwama-33DB.
I-Coupler eqondayo isetshenziswa ku-Power ukuhlanganisa uhlelo.
Indawo eqondayo ye-gully njengoba olunye ukusetshenziswa kwamandla okuhlanganisa kukhonjiswa kuMfanekiso (a) ngezansi. Kulesi sifunda, ukuqondiswa kwe-coupler eqondayo kusetshenziswe ngobuqili. Ukucabanga ukuthi ama-coupling degrees ama-couplers amabili angu-10DB futhi ukuqondiswa yi-25DB, ukwahlukaniswa phakathi kwe-F1 ne-F2 ukuphela kungama-45DB. Uma okokufaka kwe-F1 ne-F2 bobabili ku-0DBM, okuhlanganisiwe kungukuthi -10dbm. Uma kuqhathaniswa ne-Wilkinson Coupler kuMdwebo (b) ngezansi (inani layo elijwayelekile lokuhlukaniswa liyi-20DB), isibonakaliso esifanayo sokufaka se-ODBM, ngemuva kokuqonda, kukhona -3dbm (ngaphandle kokubheka ukuncipha kokufaka). Uma kuqhathaniswa nesimo sesampula sampula, sikhulisa isinali yokufaka kuMfanekiso (a) nge-7DB ukuze umphumela wawo uhambisana nesithombe (b). Ngalesi sikhathi, ukwahlukaniswa phakathi kwe-F1 ne-F2 kuMfanekiso (a) "kuyancipha" "yi-38 dB. Umphumela wokugcina wokuqhathanisa ukuthi indlela yokuhlobisa amandla aqondayo i-18DB ephakeme kune-Wilkinson Coupler. Lesi sikimu silungele ukukalwa kokuhlangana kwama-amplifiers ayishumi.
I-coupler eqondayo isetshenziswa ku-Power ukuhlanganisa uhlelo 2
2, esetshenziselwa ukwalelwa kokulwa nokuphazamiseka noma ukulinganisa okuxakile
Ohlelweni lokuhlolwa kwe-RF kanye nohlelo lokulinganisa, umjikelezo oboniswe kwisibalo esingezansi ngokuvamile angabonakala. Ake sithi i-DUT (idivaysi noma imishini evivinywayo) iyitholile. Kuleso simo, isiginali yokuphazamiseka kwesiteshi esiseduze ingafakwa otholwayo ngokuphela kokuhlangana kwe-coupler eqondayo. Ngemuva kwalokho umhloli ohlanganisiwe oxhumeke kubo ngokusebenzisa i-coupler eqondayo angahlola ukumelana nokuvuma - ukusebenza okungaphazanyiswa kwezinkulungwane. Uma i-DUT uhlelo lwamaselula, ukudluliselwa kwefoni kungavulwa ngumhloli ophelele oxhumeke ekugcineni kwe-coupler eqondayo. Ngemuva kwalokho i-spectrum analyzer ingasetshenziselwa ukukala umphumela oshubile wesehlakalo sesehlakalo. Vele, eminye imibuthano yokuhlunga kufanele ingezwe ngaphambi kokuhlaziya i-Spectrum. Njengoba lesi sibonelo sidingida kuphela ukusetshenziswa kwama-coupler aqondayo, umjikelezo wokuhlunga awushiywanga.
I-coupler eqondayo isetshenziselwa ukulinganisa okulwa nokuphazamiseka komukeli noma ukuphakama okusebenzayo kocingo lweselula.
Kulesi sifunda sokuhlola, ukuqondiswa kwe-coupler eqondayo kubaluleke kakhulu. I-spectrum analyzer exhunywe ku-end kuphela ifuna ukuthola isiginali kusuka ku-DUT futhi ayifuni ukuthola iphasiwedi ekupheleni kokuhlangana.
I-3, yesampula yesiginali nokuqapha
Ukudlulisela ukulutha okuku-inthanethi nokuqapha kungaba ngolunye lwezicelo ezisetshenziswa kakhulu zabathandanayo eziqondisayo. Lesi sibalo esilandelayo siwukusetshenziswa okujwayelekile kwezikhulu eziqondisayo zokulinganisa kwesiteshi se-Cellula. Ake sithi amandla okukhipha ama-transmitter ngu-43dbm (20w), ukuhlanganiswa kwe-coupler eqondayo. Umthamo u-30DB, ukulahleka kokufaka (ukulahleka komugqa kanye nokulahleka kokuhlangana) ngu-0.15DB. I-coupling End ine-13DBBM (20mw) Signal ethunyelwe kumhloli wesiteshi sesisekelo, umphumela oqondile we-coupler eqondayo ngu-42.85dbm (19.3W), kanye nokuvuza amandla ohlangothini olungawodwa kudonswa ngumthwalo.
I-Coupler eqondayo isetshenziselwa isilinganiso sesiteshi sesisekelo.
Cishe bonke abathengi basebenzisa le ndlela ngesampula nokuqapha online kanye nokuqapha, futhi mhlawumbe yile ndlela kuphela engaqinisekisa ukuhlolwa kokusebenza kwe-transmitter ngaphansi kwezimo ezijwayelekile zokusebenza. Kepha kufanele kuqashelwe ukuthi okufanayo ukuhlolwa kwe-transmitter, futhi abahloli abahlukile banokukhathazeka okuhlukile. Ukuthatha iziteshi zesisekelo ze-WCDMA njengesibonelo, ama-opharetha kufanele anake izinkomba kubhendi yazo yokusebenza imvamisa (2110 ~ 2170MHHZ), amazinga wesiteshi, amandla esiteshini, njll. Ngaphansi kwalesi siteshi, njll. Ngaphansi kwalesi siteshi, njll. Ngaphansi kwesikhashana maphakathi nganoma yisiphi isikhathi.
Uma kungumlawuli weRadio Frequency Spectrum-isiteshi sokuqapha umsakazo ukuvivinya izinkomba zesiteshi esithambile, ukugxila kwaso kuhluke ngokuphelele. Ngokusho kwezidingo zokubaluleka komsakazo, uhla lwemvamisa lokuhlola lunwetshwa kuya ku-9Khz ~ 12.75GHz, kanye nesiteshi esisesisekelweni esihlolwe sibanzi. Kuzokhiqizwa imisebe enzima kangaki i-Frequency Band futhi iphazamise ukusebenza okujwayelekile kwezinye iziteshi eziyisisekelo? Ukukhathazeka kweziteshi zokuqapha umsakazo. Ngalesi sikhathi, i-coupler eqondayo ene-bandwidth efanayo iyadingeka kwisampula yesiginali, kepha i-coupler eqondayo engase ikhava i-9Khz ~ 12.75GHz ayibonakali. Siyazi ukuthi ubude bengalo yokuhlangana ye-coupler eqondayo ihlobene nokuvama kwezikhungo. I-bandwidth ye-ultra-widelend coupler engafinyelela amabhendi we-5-6 octave, njenge-0.5-18ght, kepha ibhendi yemvamisa engaphansi kuka-500mhhz ayikwazi ukumbozwa.
4, Ukulinganiswa Kwamandla Oku-Inthanethi
Kubuchwepheshe bokulinganisa kwamandla kagesi, i-coupler eqondayo iyithuluzi elibucayi kakhulu. Lesi sibalo esilandelayo sibonisa umdwebo we-schematic wohlelo olujwayelekile lokulinganisa amandla. Amandla okuya phambili avela ku-amplifier ngaphansi kokuhlolwa ahlehliswa yi-Forward Coupling End (terminal 3) ye-coupler eqondayo futhi athunyelwe kumitha yamandla. Amandla abonisiwe ahlehliswa yi-terminal ephindaphindayo yokuhlangana (i-terminal 4) futhi ithunyelwe kumamitha wamandla.
I-coupler eqondayo isetshenziselwa ukukalwa kwamandla aphezulu.
Uyacelwa uqaphele: Ngaphezu kokuthola amandla abonisiwe emthanjeni, i-terminal ephindaphindayo yokuhlanganisa (i-terminal 4) futhi ithola amandla avuzayo ukusuka phambili (ukuphela kwe-terminal 1), okubangelwa ukuqondiswa kwe-coupler eqonde phambili. Amandla abonisiwe yilokho umhloli athemba ukukala, futhi amandla okuvuza ngumthombo oyinhloko wamaphutha ekulinganiseni kwamandla okubonisiwe. Amandla abonisiwe amandla okuvuza kanye nokuvuza ahlelwe kakhulu ekupheleni kokuhlangana kokuhlangana (ama-4 ama-Ends) bese athumela imitha yamandla. Njengoba izindlela zokudlulisela kwalezi zimpawu ezimbili zihlukile, kuyisimo se-vector. Uma ukufakwa kwamandla okuvuza kumitha yamandla kungaqhathaniswa namandla abonisiwe, kuzokhiqiza iphutha elibalulekile lokulinganisa.
Vele, amandla abonisiwe avela kumthwalo (ukuphela 2) azovuza nasekupheleni kokuhlanganisa (ukuphela kwe-1, akuboniswanga kwisibalo ngenhla). Noma kunjalo, ubukhulu bawo buncane uma kuqhathaniswa namandla okuya phambili, okulinganisa amandla phambili. Iphutha elilandelayo linganakwa.
I-Beijing Rofea Optoelectoronics Co, Ltd. Inkampani yethu isebenza ngokukhethekile ocwaningweni oluzimele kanye nentuthuko, ukuklama, ukukhiqiza, ukuthengiswa kwemikhiqizo ye-opoleectronic, futhi kunikeze izixazululo ezintsha kanye nezinsizakalo ezenziwe ngezifiso zabaphenyi besayensi nonjiniyela bezimboni. Ngemuva kweminyaka yokuqamba okuzimele, kwakha uchungechunge olucebile futhi oluphelele lwemikhiqizo yezithombe, esetshenziswa kabanzi kumasipala, ezempi, ezokuhamba, amandla kagesi, ezezimali, ezemfundo, ezemfundo.
Silangazelela ukubambisana nawe!
Isikhathi sePosi: APR-20-2023