Ukuqonda Amapharamitha e-S: Izinkomba Zokusebenza Ezibalulekile Ekwakhiweni Kwe-RF

Isingeniso kuma-S-Parameters: Ukubuka Okufushane

Ekwakhiweni kwezokuxhumana okungenantambo kanye nemvamisa yomsakazo (RF), amapharamitha okusakaza (amapharamitha e-S) ayithuluzi elibalulekile elisetshenziselwa ukulinganisa ukusebenza kwezingxenye ze-RF. Achaza izici zokusabalala kwezimpawu ze-RF kumadivayisi namanethiwekhi ahlukene, ikakhulukazi kumanethiwekhi anamachweba amaningi njenge-amplifier, izihlungi, noma ama-attenuator. Kwabonjiniyela abangewona ama-RF, ukuqonda la mapharamitha kungakusiza ukuthi uqonde kangcono ubunzima bomklamo we-RF.

Ayini amapharamitha e-S?

Amapharamitha e-S (amapharamitha okusabalala) asetshenziselwa ukuchaza izici zokubonakaliswa kanye nokudluliselwa kwezimpawu ze-RF kumanethiwekhi ama-port amaningi. Ngamagama alula, alinganisa ukusabalala kwezibonakaliso ngokulinganisa isigameko kanye namagagasi abonakalisiwe esignali kuma-port ahlukene. Ngalezi pharamitha, onjiniyela bangaqonda ukusebenza kwedivayisi, njengokulahlekelwa kokuboniswa, ukulahlekelwa kokudluliselwa, njll. kwesignali.

Izinhlobo Eziyinhloko Zamapharamitha e-S

Amapharamitha e-S esignali encane: Chaza impendulo yedivayisi ngaphansi kokukhuthazwa kwesignali encane futhi asetshenziselwa ukunquma izici ezifana nokulahlekelwa kokubuya kanye nokulahlekelwa kokufakwa.

Amapharamitha e-S esignali enkulu: Asetshenziswa ukukala imiphumela engeyona eye-linear lapho amandla esignali enkulu, okusiza ukuqonda ukuziphatha okungekho eye-linear kwedivayisi.

Amapharamitha e-S ashukunyiswayo: Anikeza idatha enembile kakhulu kunepharamitha ye-S evamile yamadivayisi esignali ashukunyiswayo.
Amapharamitha emodi ebandayo S: chaza ukusebenza kwedivayisi esimweni sokungasebenzi futhi usize ukuthuthukisa izici ezifanayo.
Amapharamitha emodi exubile S: asetshenziselwa amadivayisi ahlukanisayo, asiza ukuchaza izimpendulo zemodi ezihlukanisayo nezivamile.

Isifinyezo

Amapharamitha e-S ayithuluzi elibalulekile lokuqonda nokwenza ngcono ukusebenza kwezingxenye ze-RF. Kungakhathaliseki ukuthi kusesiginali encane, isignali ye-pulse, noma izinhlelo zokusebenza zesignali ezinkulu, amapharamitha e-S anikeza onjiniyela idatha ebalulekile yokulinganisa ukusebenza kwedivayisi. Ukuqonda la mapharamitha akusizi nje kuphela ukuklama i-RF, kodwa futhi kusiza onjiniyela abangewona ama-RF ukuqonda kangcono ubunzima bobuchwepheshe be-RF.