Ifrikhwensi yomsakazoizingxenye ze-passivezisetshenziswa kakhulu ekwakhiweni kweziteshi eziyisisekelo zesistimu yokuxhumana engenazintambo, kanye nezinhlelo zokusabalalisa ngaphakathi endlini. Ikakhulukazi kusignali engenantambo esakhiweni, kunezinhlobo eziningi zezinhlelo zokusebenza ekumbozweni kokusabalalisa kwangaphakathi.
Izingxenye zokungenzi lutho zefrikhwensi yomsakazo zidlala indima ekuxhumeni noma ekusabalaliseni amasignali e-RF ekwakhiweni kwesiteshi esiyisisekelo kanye namaphrojekthi wokusabalalisa ngaphakathi endlini. Isistimu yokusabalalisa yasendlini ixhuma noma ihlukanise isignali edluliswa yisiteshi esiyisisekelo ngokusebenzisa izingxenye ze-passive, bese iyisabalalisa ezimpondweni zephoyinti ngalinye lokukhava ngesiphakeli, ukuze kuzuzwe ukumbozwa okuqhubekayo nokuhle kwesignali yasendlini engenantambo. Ukuze uthole ukumbozwa kwesignali okungcono kwasendlini, le sistimu yokusabalalisa ixhuma/ihlukanisa isignali edluliswa kusukela esiteshini esiyisisekelo ukuya endaweni ngayinye yokumboza yezimpondo kusetshenziswa izingxenye ze-passive.
Amadivaysi angasebenziyo ayizingxenye eziyinhloko zesistimu yokuphakela kwezinti.
I-topology yesistimu ye-antenna feeder yakudala kanje:
Amasiginali wefrikhwensi yomsakazo wamafomethi amaningi athunyelwa yisiteshi ngasinye, ahlanganiswa yizinto ezenziwayo ezinemisebenzi ehlanganisayo njengezihlanganisi zamafrikhwensi amaningi noma amabhuloho, bese zidluliselwa ezintini zophahla noma izilenge ezisatshalaliswa esakhiweni sonke ngezintambo. Isignali ehlanganisiwe ingabuye ihlanganiswe ngokuqondile yi-coupler, ehlanganisa ingxenye yesiginali. Ngenxa yokusebenzisa izisetshenziswa ezengeziwe, ukulahleka kokufakwa kwamadivayisi e-plug-in kuyanqwabelana okungabangela ukuncishiswa okukhulu kwesiginali (ukudlulisa amasignali e-RF ebangeni elide, okungaveza ukuncishana okukhulu phakathi nokudluliswa kwekhebula.)
Isignali ehlanganisiwe ixhunywe kumbobo yokuphumayo yesihlanganisi samafrikhwensi amaningi njengesihlukanisi samandla (sisebenzisa isihlanganisi esibuyiselwe emuva). Ngemuva kokuthi isignali isihlungiwe yisihlanganisi samafrikhwensi amaningi, ikhishwa ngembobo yokufaka yesihlanganisi samafrikhwensi amaningi. Ngenxa yezici zokuhlunga i-band-pass yembobo ngayinye, lezi zimbobo zikhipha kuphela isignali kubhendi yefrikhwensi yokusebenza yembobo ngayinye.
Lezi zimpawu zingadluliselwa kwabaphindayo abakhethekile bamazinga ahlukahlukene: ukukhuliswa, ukukhishwa, kuhlanganiswe, bese bembozwa ukunxephezela ukulahleka nokuncishiswa kwesiginali ekusixhumanisi, futhi ekugcineni kuhlangatshezwane nemingcele yokuklanywa kwesabelomali sesixhumanisi ukuqinisekisa ukuthi umphumela wokuhlanganisa wephuzu ngalinye.
Ngakho njengomkhiqizi wezingxenye ze-RF zokungenzi lutho, u-Jingxin angakuxhasa ukuzeyenza ngokwezifiso izingxenye ze-passivengokwesicelo. Wamukelekile ukuthi usithinte. Ngiyabonga.
Isikhathi sokuthumela: Sep-24-2021
