Nhau

Nguva: 2021-11-10

A sefa yebhendimabasa:

Sefa yakanaka inofanira kunge iine passband yakatsetseka zvachose, semuenzaniso, hapana kuwedzera mu passband kana attenuation pama frequency ese ari kunze kwe passband kunodzikira zvachose. Uyezve, kushandurwa kwepass-band mu frequency range diki kwazvo kuti ipedzwe. Kutaura zvazviri, hapana band-pass filter yakanaka. Sefa haikwanise kutarisira kuti ma frequency ese ari kunze kwe frequency range adzikira zvachose, kunyanya, pane bhendi inofanira kudzikira asi kwete range yakaparadzaniswa. Izvi zvinowanzonzi filter roll-off phenomenon, uye attenuation mu dB pagumi rega rega inomiririra. Kazhinji, dhizaini yefirita inoedza kuona kuti rolloff inodzikisa chiyero chekushanda kuri nani kwe filter design yakadaro. Zvisinei, ne roll-off range iri kuramba ichiwedzera kuderera, pass-band haisisiri flat - yakatanga kuoneka "kudonha". Chiitiko ichi chinonyanya kuoneka mumucheto wepassband, mhedzisiro iyi inonzi Gibbs phenomenon.

Sefa yemugodhi

Sefa yemukati ifirita ye microwave ine chimiro chemukati che resonant. Kaburi kanogona kuenzana ne inductance iri pamwe chete ne capacitor kuti igadzire danho re resonant kuti iite basa re microwave filtering. Kana ichienzaniswa nedzimwe mhando dze microwave filters, firita yemukati ine chimiro chakasimba, kushanda kwakasimba uye kwakavimbika, Q value yakakwira, kupisa kwakanaka, uye passive passband yayo yepamusoro iri kure. Saka, filtering yemukati inoshandiswa munzvimbo huru dzekutaurirana. Kushandiswa kwemudziyo kwakajairika.

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Tinogonawo kugadzirisa zvikamu zveRF passive zvinoenderana nezvamunoda. Munogona kupinda papeji rekugadzirisa kuti mupe zvinodiwa zvamunoda.
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