Alub zog dividerfaib cov teeb liab tuaj rau hauv ob (lossis ntau dua) cov teeb liab tso tawm. Hauv qhov zoo tshaj plaws, lub zog faib hluav taws xob tuaj yeem suav tias yog qhov poob-tsawg, tab sis hauv kev coj ua ib txwm muaj qee lub zog dissipation. Vim tias nws yog ib qho kev sib txuas lus, lub zog sib txuas kuj tuaj yeem siv los ua lub zog sib txuas, qhov twg ob (lossis ntau dua) cov chaw nres nkoj siv los muab cov tswv yim tawm tswv yim rau hauv ib qho kev tso zis. Raws li txoj cai, lub hwj chim faib thiab lub zog sib txuas tuaj yeem yog tib yam, tab sis hauv kev xyaum yuav muaj qhov sib txawv ntawm cov khoom sib txuas thiab cov khoom sib faib, xws li kev tuav fais fab, theem sib txuam, qhov chaw nres nkoj thiab kev sib cais.
Fais fab faib thiab cov khoom sib txuas feem ntau hu ua splitters. Thaum qhov no yog technically raug, engineers feem ntau khaws lo lus "splitter" txhais tau hais tias tus nqi pheej yig resistive qauv uas faib lub hwj chim hla bandwidth dav heev, tab sis muaj kev poob qis thiab kev siv zog tsawg.
Lo lus "divider" feem ntau yog siv thaum lub teeb liab tuaj yuav raug faib sib npaug thoob plaws txhua qhov khoom tawm. Piv txwv li, yog tias muaj ob qhov chaw tso zis, txhua tus yuav tau txais me ntsis tsawg dua ib nrab ntawm cov teeb liab tawm tswv yim, qhov zoo tshaj -3 dB piv rau cov teeb liab tawm tswv yim. Yog tias muaj plaub qhov chaw nres nkoj, txhua qhov chaw nres nkoj yuav tau txais txog ib feem peb ntawm lub teeb liab, lossis -6 dB piv rau cov teeb liab tawm tswv yim.
Muab cais nyob ib leeg
Thaum xaiv hom kev faib tawm lossis cov khoom sib txuas siv, nws tseem ceeb heev uas yuav tsum xav txog kev cais. Kev sib cais siab txhais tau hais tias cov teeb meem tshwm sim (hauv ib qho kev sib txuas) tsis cuam tshuam nrog ib leeg, thiab txhua lub zog uas tsis xa mus rau cov zis yog dissipated es tsis xa mus rau qhov chaw tso zis. Ntau hom kev sib faib ua qhov no sib txawv. Piv txwv li, nyob rau hauv Wilkinson divider, tus resistor muaj 2Z0 tus nqi thiab yog strapped hla cov outputs. Nyob rau hauv lub quadrature coupler, plaub qhov chaw nres nkoj muaj qhov xaus. Qhov kev txiav tawm dissipates tsis muaj zog tshwj tsis yog tias muaj qee yam tsis zoo tshwm sim, zoo li ib lub amp tsis ua haujlwm lossis lub amplifiers muaj ntau theem.
Hom Dividers
Muaj ntau ntau hom thiab subtypes ntawm lub hwj chim dividers los yog combiners. Qee qhov ntawm ntau qhov ntau suav nrog:
Lub Wilkinson divider faib cov teeb liab tawm tswv yim rau hauv ob theem sib npaug ntawm cov zis tawm, lossis muab ob lub cim sib npaug sib npaug rau hauv ib qho ntawm qhov sib txawv. Lub Wilkinson divider tso siab rau lub quarter-wave transformers kom phim qhov chaw nres nkoj. Ib tug resistor muab tso rau thoob plaws cov zis, qhov uas nws tsis muaj teeb meem rau lub input teeb liab ntawm qhov chaw nres nkoj 1. Hom kev faib no feem ntau yog siv nyob rau hauv ntau lub xov tooj cua zaus tshuab vim nws tuaj yeem muab kev sib cais siab ntawm cov chaw nres nkoj tso zis. Los ntawm cascading ntau lub quarter nthwv dej, Wilkinson's tuaj yeem yooj yim lis 9: 1 bandwidths ntawm kev ua tsov rog hluav taws xob.
Raws li lub npe qhia, RF / microwave fais fab faib yuav faib cov teeb liab tawm tswv yim rau hauv ob qhov sib npaug thiab zoo ib yam (piv txwv li hauv-theem) cov cim. Nws kuj tseem tuaj yeem siv los ua lub zog sib txuas, qhov chaw nres nkoj feem ntau yog cov khoom tso tawm thiab ob lub zog sib npaug sib npaug siv los ua cov khoom siv. Cov ntsiab lus tseem ceeb thaum siv los ua lub zog faib hluav taws xob muaj xws li qhov poob qis, amplitude thiab theem sib npaug ntawm caj npab, thiab rov poob. Rau lub zog sib txuas ntawm cov cim tsis sib xws, qhov tshwj xeeb tseem ceeb tshaj plaws yog kev sib cais, uas yog qhov poob ntawm ib qho hluav taws xob sib npaug mus rau lwm qhov.
• Fais fab faib tuaj yeem siv los ua cov sib txuas lossis sib cais
• Wilkinson thiab High isolation power dividers muab kev sib cais siab, thaiv cov teeb liab sib tham ntawm cov chaw nres nkoj tso zis
• Kev nkag qis thiab rov qab poob
• Wilkinson thiab resistive power dividers muab zoo heev (<0.5dB) amplitude thiab (<3°) theem sib npaug
Si Chuan Keenlion Microwave ib qho kev xaiv loj ntawm 2-txoj kev sib faib hluav taws xob hauv qhov nqaim thiab kev teeb tsa dav dav, suav nrog zaus ntawm DC mus rau 50 GHz. Lawv tau tsim los tswj los ntawm 10 mus rau 30 watts input zog hauv 50-ohm kis tau tus mob. Microstrip los yog stripline designs yog siv, thiab optimized rau kev ua tau zoo tshaj plaws.
Cov chav nyob tuaj txheem nrog SMA lossis N poj niam connectors, lossis 2.92mm, 2.40mm, thiab 1.85mm connectors rau cov khoom siv ntau zaus.
Peb kuj tuaj yeem kho lub zog faib 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.
Post lub sij hawm: Aug-09-2022
