Xov xwm

Sijhawm: 2021-11-10

A band-pass limua haujlwm:

Ib qho zoo tagnrho lim yuav tsum muaj ib tug passband tiaj tus kiag li, piv txwv li, tsis muaj kev nce nyob rau hauv passband los yog attenuation ntawm tag nrho cov frequencies sab nraum lub passband yog kiag li attenuate Ntxiv mus, hloov dua siab tshiab ntawm pass-band nyob rau hauv ib tug tsawg zaus ntau zaus kom tiav. Qhov tseeb, tsis muaj qhov zoo tshaj plaws band-pass lim. Lub lim tsis tuaj yeem cia siab tias txhua qhov ntau zaus sab nraum qhov ntau zaus attenuate kiag li, tshwj xeeb tshaj yog, muaj ib pawg yuav tsum tau attenuated tab sis tsis cais ntau yam. Qhov no feem ntau yog hu ua lub lim roll-off tshwm sim, thiab attenuation hauv dB ib xyoo caum los sawv cev. Feem ntau, lub lim tsim sim ua kom paub tseeb tias qhov rolloff nqaim qhov kev ua tau zoo ntawm cov lim tsim los ze dua. Txawm li cas los xij, nrog rau qhov kev sib tw yob tau me dua thiab me dua, qhov hla-band tsis tiaj tus - pib tshwm rau "ripple". Qhov no tshwm sim tshwj xeeb tshaj yog tshwm sim nyob rau hauv lub passband ntug, cov nyhuv no yog hu ua Gibbs phenomenon.

Cavity lim

Cov kab noj hniav lim yog lub tshuab lim microwave nrog cov kab noj hniav resonant. Lub kab noj hniav tuaj yeem sib npaug rau qhov inductance nyob rau hauv parallel nrog lub capacitor los ua ib theem resonant kom paub txog microwave filtering muaj nuj nqi. Piv nrog rau lwm hom microwave lim, cov kab noj hniav lim muaj cov qauv ruaj khov, kev ua haujlwm ruaj khov thiab txhim khu kev qha, Q tus nqi siab, zoo cua sov dissipation, thiab nws high-end parasitic passband nyob deb. Yog li ntawd, kab noj hniav filtering yog siv nyob rau hauv loj kev sib txuas lus chaw nres tsheb. Daim ntawv thov ntawm cov cuab yeej muaj ntau heev.

Sichuan Keenlion Microwave yog ib qho ntawm RF / Microwave Cheebtsam tsum. Cov khoom tseem ceeb yog lub hwj chim divider, band pass lim, coupler, duplexer. Tshwj xeeb tshaj yog cov khoom nram qab no yog microstrip power divider, directional coupler, band pass filter, Hybrid Bridge, Microwave Isolator, Microwave Circulator, Passive Components VHF Duplexer, Combiner, etc. Sichuan Keenlion Microwave tau dhau los ua ib lub tuam txhab high-tech R & D, ntau lawm, muag thiab kev pabcuam tuam txhab. Cov khoom siv dav siv hauv xov tooj cua paging, digital TV, microwave kev sib txuas lus system (GSM, 3G, Wimax, LTE), radar system thiab ntau yam RF syste.Sichuan Keenlion Microwave cov khoom muag thoob plaws ntiaj teb thiab tau txais txiaj ntsig zoo. Raws li ib qho ntawm cov chaw tsim khoom thiab xa tawm cov ntaub ntawv microwave, Sichuan Keenlion Microwave suab nrov lag luam lub koob npe nrov, kev lag luam dav dav, cov neeg siv khoom ruaj khov thiab muaj kev sib tw ua lag luam.

Peb kuj tuaj yeem kho cov rf passive Cheebtsam raws li koj xav tau. Koj tuaj yeem nkag mus rau nplooj ntawv customization los muab cov kev qhia tshwj xeeb uas koj xav tau.
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