Qhov zoo ntawm cov hmoov ceramic thiab cov txheej txheem sintering ncaj qha cuam tshuam rau kev ua haujlwm ntawm gps kav hlau txais xov.Ceramic thaj tam sim no siv nyob rau hauv kev ua lag luam feem ntau yog 25 × 25, 18 × 18, 15 × 15, thiab 12 × 12.Qhov loj ntawm thaj tsam ntawm thaj chaw ceramic, qhov ntau dua qhov dielectric tas li, qhov siab dua qhov resonant zaus, thiab qhov zoo dua ntawm GPS kav hlau txais xov zoo.
Cov nyiaj txheej ntawm cov kav hlau txais xov ceramic tuaj yeem cuam tshuam rau qhov resonant zaus ntawm tus kav hlau txais xov.Qhov zoo tshaj plaws GPS ceramic nti zaus yog raws nraim 1575.42MHz, tab sis tus kav hlau txais xov zaus tau yooj yim heev cuam tshuam los ntawm ib puag ncig ib puag ncig, tshwj xeeb tshaj yog tias nws tau sib sau ua ke hauv tag nrho lub tshuab, cov nyiaj txheej txheej yuav tsum tau kho.Qhov zaus ntawm GPS navigation kav hlau txais xov tuaj yeem hloov kho kom muaj qhov zoo ntawm GPS navigation kav hlau txais xov ntawm 1575.42MHz.Yog li ntawd, GPS ua tiav tshuab chaw tsim khoom yuav tsum koom tes nrog cov chaw tsim khoom kav hlau txais xov thaum yuav lub kav hlau txais xov, thiab muab cov qauv ua tiav tshuab rau kev sim.
Cov ntsiab lus pub cuam tshuam rau kev ua haujlwm ntawm gps kav hlau txais xov
Lub kav hlau txais xov ceramic sau cov teeb liab resonant los ntawm qhov chaw noj mov thiab xa mus rau tom qab kawg.Vim yog qhov tseem ceeb ntawm cov kav hlau txais xov impedance txuam, qhov taw tes pub yog feem ntau tsis nyob hauv nruab nrab ntawm lub kav hlau txais xov, tab sis hloov me ntsis hauv XY kev taw qhia.Txoj kev sib piv impedance no yooj yim thiab tsis nce nqi, txav tsuas yog nyob rau hauv cov kev taw qhia ntawm ib axis yog hu ua ib tug tib-biased kav hlau txais xov, thiab tsiv nyob rau hauv ob axes yog hu ua ob-biased kav hlau txais xov.
Amplifying circuit cuam tshuam kev ua haujlwm ntawm gps kav hlau txais xov
Cov duab thiab thaj chaw ntawm PCB nqa lub kav hlau txais xov ceramic, vim qhov xwm txheej ntawm GPS rov qab, thaum lub keeb kwm yav dhau yog 7cm x 7cm tsis muaj kev cuam tshuam hauv av, thaj kav hlau txais xov qhov kev ua tau zoo tuaj yeem ua tiav.Txawm hais tias nws raug txwv los ntawm cov tsos thiab cov qauv, sim ua kom nws ncaj ncees Lub cheeb tsam thiab cov duab ntawm lub amplifier yog uniform.Qhov kev xaiv ntawm qhov nce ntawm lub amplifier Circuit Court yuav tsum phim qhov nce ntawm qhov rov qab-kawg LNA.GSC 3F ntawm Sirf xav kom tag nrho qhov nce ua ntej lub teeb liab tawm tswv yim yuav tsum tsis pub tshaj 29dB, txwv tsis pub lub GPS navigation kav hlau txais xov teeb liab yuav oversaturated thiab nws tus kheej zoo siab.Lub kav hlau txais xov GPS muaj plaub qhov tseem ceeb: Tau Txais, Sawv Ntxov Wave (VSWR), Nrov Nrov Figure, thiab Axial Ratio, ntawm cov uas Axial Ratio yog tshwj xeeb, uas yog ib qho kev ntsuas ntawm lub teeb liab nce ntawm tag nrho lub tshuab nyob rau hauv ntau cov lus qhia.qhov taw qhia tseem ceeb ntawm qhov sib txawv.Txij li thaum lub satellites raug faib nyob rau hauv lub hemispherical ntuj, nws yog ib qho tseem ceeb heev kom paub tseeb tias cov kav hlau txais xov muaj rhiab heev rhiab heev nyob rau hauv tag nrho cov lus qhia.Lub axial piv yog cuam tshuam los ntawm kev ua tau zoo ntawm GPS kav hlau txais xov, qhov tsos thiab qauv, sab hauv Circuit Court ntawm tag nrho lub tshuab, thiab EMI.
Post lub sij hawm: Oct-27-2022