TheBand Stop Sefa, (BSF) imwe mhando yefrequency selective circuit inoshanda nenzira yakapesana neBand Pass Filter yatakambotarisa. Iyo bhendi yekumisa sefa, inozivikanwawo sebhendi yekuramba sefa, inopfuura ese mafrequency kunze kweaya ari mukati meyakatarwa stop bhendi ayo akadzikiswa zvakanyanya.
Kana iyi bhendi yekumisa iri nhete uye yakanyungudika zvakanyanya pamusoro pemahertz mashoma, ipapo bhendi rinomira sefa rinowanzo kunzi notch sefa, sezvo mhinduro yaro yefrequency ichiratidza iyo yakadzika notch ine high selectivity (inokwidza-side curve) pane bhendi rakafaranuka.
Zvakare, sezvakangoita bhendi pass sefa, bhendi rinomira (bhendi reramba kana notch) sefa ndeyechipiri-odha (mbiri-danda) sefa ine maviri akachekwa-ma frequency, anowanzozivikanwa se -3dB kana hafu-simba mapoinzi achigadzira yakakura yekumisa bhendi bandwidth pakati peaya maviri -3dB mapoinzi.
Ipapo basa rebhendi rekumisa sefa rakanyanya kupfuura ese mafrequency kubva ku zero (DC) kusvika kune yekutanga (yepasi) yekucheka-kubvisa frequency point ƒL, uye pfuudza iwo mafrequency pamusoro pechipiri (yepamusoro) yekucheka-frequency ƒH, asi vhara kana kuramba ese mafrequency ari pakati. Ipapo mafirita bandwidth, BW inotsanangurwa se: (ƒH - ƒL).
Saka kune yakakura-bhendi yekumisa sefa, mafirita chaiwo ekumira bhendi anorara pakati pepasi nepamusoro -3dB mapoinzi sezvaanorembera, kana kuramba chero frequency pakati peaya maviri akachekwa-ma frequency. Iyo frequency mhinduro curve yeyakanaka bhendi yekumisa sefa inopihwa.
Zvakanakiraband stop sefayaizove nekudzikama kusingaperi mubhendi yekumira uye zero attenuation mune chero bhendi rekupfuura. Shanduko pakati pemabhendi maviri ekupfuura uye bhendi rekumisa raizomira (madziro ezvidhina). Pane nzira dzakati wandei dzatinogona kugadzira "Band Stop Filter", uye dzese dzinozadzisa chinangwa chimwe.
Mauniti anouya akajairwa ane SMA kana N chidzitiro chekubatanidza, kana 2.92mm, 2.40mm, uye 1.85mm majoini epamusoro ma frequency ezvikamu.
Isu tinogona zvakare kugadzirisa iyoBand Stop Sefamaererano nezvaunoda. Iwe unogona kupinda peji rekugadzirisa kuti upe zvakatemwa zvaunoda.
Nguva yekutumira: Aug-20-2022
