• Ukuze uhlukanise isignali ibe amasignali amabili e-amplitude elinganayo kanye nomehluko wesigaba esingu-90° noma esingu-180° ongashintshi.
• Ngokuhlanganiswa kwe-quadrature noma ukwenza ukuhlanganisa/ukuhlanganisa okuhlukile.
Isingeniso
Izithandani namahybrids angamathuluzi lapho imigqa yokudlulisela emibili idlula eduze ngokwanele ukuze amandla asabalale kulayini owodwa ukuya komunye komunye. I-3dB 90° noma 180° hybrid ihlukanisa isignali yokufaka ibe okokukhiphayo okubili okulinganayo kwe-amplitude. I-coupler eqondisayo ivamise ukuhlukanisa isignali yokufaka ibe yimiphumela emibili engalingani ye-amplitude. Leli gama elithi “directional coupler”, “90° hybrid”, kanye “180° hybrid” lisekelwe kumthethosisekelo. Nokho, ama-hybrids angu-90° kanye no-180° angacatshangwa njengama-couplers angu-3 dB. Ngaphandle kwalokhu kufana, amapharamitha asetshenziselwa ukuchaza ukugeleza kwesignali kumabhangqana aqondisayo kanye nohlelo lokusebenza, ekusetshenzisweni kwangempela, luhluke ngokwanele ukuze kugunyazwe ukucatshangelwa okuhlukene.
180° Hybrids Incazelo Esebenzayo
I-hybrid engu-180° iyidivayisi ehambisanayo enezimbobo ezine enikeza amasignali amabili alinganayo e-amplitude yesigaba uma inedliwe kusuka ku-sum port (S) kanye namasiginali amabili alinganayo we-amplitude 180° angaphandle kwesigaba uma idliwe kusuka kumbobo yomehluko (D). Ngokuphambene, okokufaka amasiginali kuzimbobo C kanye no-D kuzokwengeza ku-sum port (B) futhi umehluko wamasignali amabili uzovela embobeni ehlukile (A). Umfanekiso 1 uwumdwebo osebenzayo ozosetshenziswa kulesi sihloko ukumela ingxube ye-180°. Ichweba B lingathathwa njengechweba lesamba kanye nechweba A liyimbobo ehlukile. Izimbobo A no-B kanye nezimbobo C kanye no-D zingamapheya angawodwa ezikhumulo.
90° AmaHybrid noma ama-hybrid couplers ngokuyisisekelo angamabhangqana aqondisayo angu-3 dB lapho isigaba sesiginali yokuphumayo ehlanganisiwe nesiginali yokuphumayo kuhlukana ngo-90°. Njengoba -3 dB imele amandla ayingxenye, i-coupler engu-3 dB ihlukanisa amandla ngokulinganayo (ngaphakathi kokubekezelela okuthile) phakathi kokukhiphayo nezimbobo zokuphumayo ezihlanganisiwe. Umehluko wesigaba esingu-90° phakathi kokuphumayo wenza ama-hybrids abe usizo ekwakhiweni kwezixhumi ezishintshashintshayo ze-elekthronikhi, izixube zama-microwave, amamodulator nezinye izingxenye namasistimu amaningi e-microwave. Umfanekiso 5 ubonisa umdwebo wesifunda kanye nethebula leqiniso elizosetshenziswa ekuchazeni ukusebenza kwehybrid ye-RF frequency 90°. Njengoba kungabonwa kulo mdwebo, isignali esetshenziswa kunoma yikuphi okokufaka izoholela kumasignali amabili alinganayo e-amplitude ayi-quadrature, noma 90°, aphume esigabeni nomunye. Amachweba A no-B kanye namachweba C kanye no-D ahlukene. Njengoba kushiwo ngaphambili esigabeni se-hybrid esingu-180°, imishini ye-RF kanye ne-microwave zisebenzisa izindlela ezahlukene zokwakha. Nakuba izimpendulo zethiyori ziyefana, indawo yechweba kanye nokuziphatha kuhlukile. Ngezansi, Emfanekisweni kukhona izinguqulo "eziwela ngaphesheya" kanye "nezinqamuleli" ezinikezwa amafrikhwensi e-microwave (500 MHz nangaphezulu) kanye nethebula leqiniso eliwumphumela. Ama-hybrid degree angama-90 abuye abizwe ngokuthi ama-quadrature hybrids ngoba isigaba semiphumela emibili siyi-quadrant (90°) ngokuhlukana. Qaphela futhi ukuthi akwenzi mehluko ukuthi iyiphi imbobo eyimbobo yokufaka inqobo nje uma ubudlelwano phakathi kwezimbobo busekhona. Lokhu kungenxa yokuthi ama-hybrids angu-90° ahambisana ngogesi nangokomshini mayelana nama-X kanye ne-Y Axes.
Si Chuan Keenlion Microwave ukukhethwa okukhulu kwebhuloho elihlanganisiwe le-3DB ekucushweni kwe-narrowband kanye ne-broadband, elimboza amaza asuka ku-0.5 kuya ku-50 GHz. Zenzelwe ukuphatha amandla okufaka ama-watts asuka ku-10 kuye kwangama-30 kusistimu yokudlulisa engu-50-ohm. Imiklamo ye-Microstrip noma ye-stripline isetshenziswa, futhi yenzelwe ukusebenza kahle kakhulu.
Amayunithi eza ajwayelekile anezixhumi ze-SMA noma ze-N zesifazane, noma izixhumi ezingu-2.92mm, 2.40mm, nezingu-1.85mm zezingxenye zefrikhwensi ephezulu.
Singakwazi futhi ukwenza ngokwezifiso i-3DB Hybrid Bridge ngokwezidingo zakho. Ungafaka ikhasi lokwenza ngokwezifiso ukuze unikeze imininingwane oyidingayo.
Isikhathi sokuthumela: Oct-09-2022
