Lub Wilkinson fais fab faib yog ib qho reactive divider uas siv ob lub transformers, parallel, uncoupled quarter-wavelength transmission line transformers. Kev siv cov kab kis tau ua rau Wilkinson divider yooj yim siv siv cov kab kis tau tus qauv luam tawm. Qhov ntev ntawm cov kab kis tau feem ntau txwv qhov zaus ntawm Wilkinson divider rau cov zaus siab dua 500 MHz. Lub resistor ntawm cov qhov tso zis tso cai rau lawv kom muaj cov impedances sib phim thaum tseem muab kev sib cais. Vim tias cov qhov tso zis muaj cov cim ntawm tib lub amplitude thiab theem, tsis muaj voltage hla lub resistor, yog li tsis muaj tam sim no ntws thiab lub resistor tsis dissipate lub zog.
Cov khoom faib hluav taws xob
Ib lub tshuab faib fais fab muaj ib lub teeb liab nkag thiab ob lossis ntau lub teeb liab tso zis. Cov teeb liab tso zis muaj qib fais fab uas yog 1/N qib fais fab nkag qhov twg N yog tus lej ntawm cov zis hauv lub tshuab faib. Cov teeb liab ntawm cov zis, hauv daim ntawv faib fais fab feem ntau, yog nyob rau hauv theem. Muaj cov tshuab faib fais fab tshwj xeeb uas muab kev hloov pauv theem tswj ntawm cov zis. Cov ntawv thov RF rau cov tshuab faib fais fab, raws li tau hais ua ntej, coj ib qho chaw RF sib xws mus rau ntau lub cuab yeej (Daim Duab 1).
Daim duab ntawm RF qhov chaw xa mus rau ntau lub cuab yeej
Daim Duab 1: Cov khoom faib fais fab siv los faib cov teeb liab RF rau ntau yam khoom siv xws li hauv lub kaw lus phased array antenna lossis hauv quadrature demodulator.
Piv txwv li yog lub kav hlau txais xov phased array qhov twg qhov chaw RF raug faib ntawm ob lub kav hlau txais xov. Cov kav hlau txais xov ntawm hom no feem ntau muaj ob txog yim lossis ntau dua cov khoom, txhua tus ntawm lawv tau tsav los ntawm lub qhov hluav taws xob faib tawm. Cov hloov pauv theem feem ntau yog sab nraud ntawm lub divider kom tso cai rau kev tswj hwm hluav taws xob los tsav lub kav hlau txais xov qauv teb.
Lub tshuab faib fais fab tuaj yeem khiav "rov qab" kom ntau lub tswv yim tuaj yeem sib koom ua ke rau hauv ib qho zis ua rau nws yog lub tshuab sib txuas fais fab. Hauv hom sib txuas no cov khoom siv no muaj peev xwm ua tau vector ntxiv lossis rho tawm cov teeb liab raws li lawv qhov amplitude thiab theem tus nqi.
Lub hwj chim faibCov yam ntxwv
• Cov khoom faib fais fab siv tau ua cov khoom sib txuas lossis cov khoom faib hluav taws xob
• Wilkinson thiab High isolation power dividers muab kev sib cais siab, thaiv kev sib txuas lus ntawm cov teeb liab ntawm cov chaw tso zis
• Kev ntxig thiab rov qab poob qis
• Wilkinson thiab resistive power dividers muab kev zoo heev (<0.5dB) amplitude thiab (<3°) theem sib npaug
• Cov kev daws teeb meem ntau-octave los ntawm DC mus rau 50 GHz
Kawm Ntxiv Txog Cov Khoom Siv Faib Fais Fab
Raws li lub npe qhia, RF/microwave fais fab faib yuav faib ib lub teeb liab nkag mus rau hauv ob lub teeb liab sib npaug thiab zoo ib yam (piv txwv li hauv-theem). Nws kuj tseem siv tau ua lub zog sib txuas, qhov twg qhov chaw nres nkoj sib koom yog qhov tso zis thiab ob lub zog sib npaug yog siv ua cov tswv yim. Cov lus qhia tseem ceeb thaum siv ua lub zog faib suav nrog kev poob ntxig, kev poob rov qab, thiab qhov loj thiab theem sib npaug ntawm caj npab. Rau kev sib txuas fais fab ntawm cov teeb liab tsis sib xws, xws li thaum ua qhov kev sim intermodulation distortion (IMD) zoo li IP2 thiab IP3, qhov tseem ceeb tshaj plaws yog kev sib cais ntawm cov chaw nres nkoj nkag.
Muaj peb hom tseem ceeb ntawm RF fais fab faib thiab RF fais fab sib txuas: 0º, 90 º hybrid, thiab 180 º hybrid. Zero-degree RF dividers faib ib lub teeb liab nkag mus rau hauv ob lossis ntau lub teeb liab tso zis uas yog sib npaug hauv ob qho tib si amplitude thiab theem. Zero-degree RF combiners koom nrog ntau lub teeb liab nkag los muab ib qho tso zis. Thaum xaiv 0 º dividers, kev faib fais fab faib yog ib qho tseem ceeb uas yuav tsum xav txog. Cov parameter no yog tus lej ntawm cov zis ntawm lub cuab yeej, lossis tus lej ntawm txoj kev uas lub teeb liab nkag tau faib ntawm qhov tso zis. Cov kev xaiv suav nrog 2, 3, 4, 5, 6, 7, 8, 9, 12, 16, 32, 48, thiab 64-txoj kev.
RF fais fab faib / faibyog cov khoom siv RF / microwave passive siv rau kev faib (lossis faib) cov teeb liab microwave. Sichuan Keenlion Microwave Technology CO., Ltd fais fab splitters suav nrog 2-txoj kev, 3-txoj kev, 4-txoj kev, 6-txoj kev, 8-txoj kev thiab txog li 48-txoj kev qauv rau 50 Ohm thiab 75 Ohm systems, nrog DC-passing thiab DC-blocking, hauv coaxial, surface mount, thiab MMIC tuag hom ntawv. Peb cov coaxial splitters muaj nrog SMA, N-Type, F-Type, BNC, 2.92mm thiab 2.4mm connectors. Xaiv los ntawm ntau tshaj 100 tus qauv hauv Tshuag nrog zaus ntau txog li 50
GHz, kev tswj fais fab txog li 200W, kev poob qis ntawm kev ntxig, kev rho tawm siab, thiab qhov tsis sib npaug ntawm qhov loj me thiab qhov tsis sib npaug ntawm theem zoo heev.
Peb kuj tseem tuaj yeem hloov kho lub lim dej Band Pass raws li koj xav tau. Koj tuaj yeem nkag mus rau nplooj ntawv hloov kho kom muab cov lus qhia koj xav tau.
Lub sijhawm tshaj tawm: Cuaj hlis-15-2022
