Wilkinson lub tshuab faib hluav taws xobyog lub voj voog faib fais fab. Thaum txhua lub qhov (ports) sib phim, nws tuaj yeem paub txog kev sib cais ntawm ob lub qhov (output ports). Txawm hais tias Wilkinson lub cuab yeej faib fais fab tuaj yeem tsim los ua kom paub txog txhua qhov kev faib fais fab (piv txwv li, saib Pozar [1]), qhov piv txwv no yuav kawm txog rooj plaub ntawm kev faib sib npaug (3dB). FDTD yuav raug siv los txais cov kev teeb tsa scattering ntawm lub cuab yeej.
Wilkinson lub tshuab faib hluav taws xobKev Teeb tsa Analog
Cov qauv pawg "trace thiab load" siv rau hauv FDTD simulation file Wilkinson_ power_ divider. Cov yam ntxwv ntawm lub cev thiab hluav taws xob ntawm Wilkinson power divider tau tsim thiab teeb tsa hauv fsp. Cov kab xa xov microstrip yog qauv siv ob-seem perfect electrical conductor (PEC) rectangular plate uas muab tso rau ntawm 1.59mm tuab substrate nrog qhov dielectric constant ntawm 2.2. Qhov dav uas xav tau ntawm txhua ntu kab xa xov yog xam los ntawm kev siv equation. 3.195 thiab 3.197 hauv Pozar [1] (saib microstrip.lms script file hauv microstrip piv txwv) yog 4.9mm (Z0 = 50 ohms) thiab 2.804 mm (√ 2Z0 = 70.7 ohms) feem. Cov kab xa xov quarter wavelength yog tsim los ntawm kev siv 2D polygons tsim rau hauv lub nplhaib. 3.194 hauv Pozar [1] yog λ g/4=55.5 mm。 Tus resistor yog modeled siv ib lub phaj rectangular 2D uas qhia txog cov khoom siv nrog R=100 ohms.
Cov chaw nres nkoj raug muab tso rau ntawm cov kab nkag thiab cov zis tawm kom txhaj cov kab xa mus rau hauv qhov zaus ntawm 0.5 - 1.5 GHz thiab xam cov kev sib kis ntawm cov khoom siv. Yog xav paub ntxiv txog nws cov chaw teeb tsa, saib nplooj ntawv Ports. Raws li tau piav qhia hauv qab no, qhov chaw nres nkoj yuav raug hloov pauv tes kom tua ib qho chaw nres nkoj ib zaug.
Thaj chaw npog mesh raug muab tso rau ntawm txhua txoj kab kom daws tau nws qhov ntev thiab dav. Cov khoom khoov thiab lub kaum sab xis ntawm cov ceg ntoo yuav tsum tau kom qhov loj ntawm daim phiaj hauv x thiab y cov lus qhia sib npaug (dx = dy). Qhov no tsis yog kev txwv rau cov khoom noj thiab cov khoom tso tawm uas sib phim rau lub axis sib koom ua ke. Ib daim qauv ntawm thaj chaw npog mesh siv rau kev taug qab ceg ntoo raug muab tso rau sab xis ntawm cov kab tso tawm kom tswj tau lub mesh sib npaug.
Tus mob ciam teb nqus PML nyob ib puag ncig tag nrho thaj chaw simulation, tshwj tsis yog tus ciam teb z-yam tsawg kawg nkaus, uas yog xaiv los ua tus mob ciam teb hlau simulation lub dav hlau av ntawm kab xa xov microstrip.
Wilkinson lub tshuab faib hluav taws xob Cov txiaj ntsig thiab kev tshuaj xyuas
Daim duab saum toj no qhia txog qhov zaus teb ntawm cov kev sib tsoo uas siv rau kev sib cais thiab kev sib kis thiab kev faib hluav taws xob ntawm 1GHz. Cov lej no yog tsim los ntawm tsab ntawv tom qab kev sim ua tiav. Nws yuav tsum tau sau tseg tias cov txiaj ntsig no tuaj yeem tau txais ntawm txoj kev taug kev siv cov meshes zoo dua li cov uas tau teev tseg hauv cov ntaub ntawv simulation.
Cov analogueWilkinson lub tshuab faib hluav taws xobzoo sib xws ntawm nws cov tswv yim (S11 = - 40dB, f = 1.0GHz) thiab cov zis (S22 = - 32dB, f = 1GHz) chaw nres nkoj, muaj kev sib cais zoo (S32 = - 43dB, f = 1GHz), thiab nws qhov zaus nruab nrab yog 1.01GHz, uas yog nyob rau hauv 1% ntawm qhov tsim qauv ua haujlwm zaus ntawm 1GHz. Tsis tas li ntawd, peb pom 3dB sib npaug zog faib (S31 = - 3dB ntawm f = 1GHz) nrog kev hloov pauv tsawg dua 10% hauv analog zaus band.
Si Chuan Keenlion Microwave muaj ntau hom kev xaiv hauv narrowband thiab broadband configurations, npog cov zaus txij li 0.5 txog 50 GHz. Lawv tau tsim los tswj hwm los ntawm 10 txog 30 watts input zog hauv 50-ohm transmission system. Microstrip lossis stripline designs siv, thiab optimized rau kev ua tau zoo tshaj plaws.
Peb kuj tseem tuaj yeem kho qhov Power Divider raws li koj xav tau. Koj tuaj yeem nkag mus rau hauvnplooj ntawv kho kom haum koj xav tau.
Sichuan Keenlion Microwave Technology Co., Ltd.
Email:
sales@keenlion.com
tom@keenlion.com
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-06-2022
