Q-band thiab EHF (Hloov Siab Tshaj Lij) band yog qhov tseem ceeb zaus hauv cov khoom siv hluav taws xob, nrog cov yam ntxwv tshwj xeeb thiab kev siv dav.
Q-band:
Q-band feem ntau yog hais txog qhov ntau zaus ntawm 33 thiab 50 GHz, uas nyob hauv EHF ntau.
Nws cov yam ntxwv tseem ceeb suav nrog:
High zaus: luv wavelength, txog 6 mus rau 9 mm.
High bandwidth: haum rau high-ceev cov ntaub ntawv kis tau tus mob.
Cov cheeb tsam tseem ceeb ntawm Q-band yog:
Kev sib txuas lus satellite: siv rau uplink thiab downlink ntawm high-throughput satellite (HTS) systems los muab broadband Internet kev pab cuam.
Kev sib txuas lus hauv av microwave: siv rau qhov luv luv, muaj peev xwm xa cov ntaub ntawv siab.
Xov tooj cua astronomy: siv los soj ntsuam cov xov tooj cua zaus hauv ntiaj teb.
Automotive radar: luv-ntau radar siv nyob rau hauv advanced driver help systems (ADAS).
EHF Band:
EHF band hais txog qhov zaus ntawm 30 thiab 300 GHz thiab lub wavelength yog 1 txog 10 hli, yog li nws tseem hu ua millimeter yoj band.
Nws cov yam ntxwv tseem ceeb suav nrog:
Ultra-siab zaus: muaj peev xwm muab cov ntaub ntawv sib kis tau zoo heev.
Nqaim nqaj: tus kav hlau txais xov me me me thiab muaj zog ncaj qha.
Cov cheeb tsam tseem ceeb ntawm EHF band yog:
Kev sib txuas lus tub rog: siv rau kev sib txuas lus nrog cov kev xav tau ceev ceev, xws li Asmeskas tub rog Milstar thiab Advanced Extremely High Frequency (AEHF) systems.
Kev sib txuas lus satellite: muab kev pabcuam broadband thiab txhawb kev xa cov ntaub ntawv ceev ceev.
Radar systems: siv rau high-resolution radars thiab hluav taws kub tswj radars.
Kev tshawb fawb tshawb fawb: siv rau kev tshawb pom huab cua thiab xov tooj cua astronomy soj ntsuam.
Kev sib tw thiab kev txhim kho:
Txawm hais tias Q-band thiab EHF bands muaj kev cia siab rau daim ntawv thov dav dav, lawv tseem ntsib qee qhov teeb meem hauv kev siv tswv yim:
Atmospheric attenuation: high-frequency signals raug cuam tshuam rau huab cua yam xws li nag attenuation thaum propagation, ua rau lub teeb liab attenuation.
Technical complexity: high-frequency devices muaj cov qauv tsim thiab tsim khoom thiab cov nqi siab.
Txhawm rau ua kom tau raws li cov kev cov nyom no, cov kws tshawb fawb tab tom tsim cov kev hloov kho tshiab thiab coding thev naus laus zis, nrog rau cov phiaj xwm kev sib txawv ntawm lub qhov rooj ntse kom txhim kho kev ntseeg tau thiab muaj peev xwm tiv thaiv kev cuam tshuam.
Xaus:
Q-band thiab EHF-band ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus niaj hnub no, radar thiab kev tshawb fawb tshawb fawb.
Nrog rau kev nce qib ntawm thev naus laus zis, daim ntawv thov ntawm cov zaus bands no yuav raug nthuav dav ntxiv, muab cov hauv kev tshiab rau kev txhim kho ntawm ntau yam.
Post lub sij hawm: Dec-23-2024
