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    Kev paub yooj yim ntawm ONU khoom kav hlau txais xov

    Post lub sij hawm: May-04-2023

    Kav hlau txais xov hloov hluav taws xob cov teeb liab kis tau los ntawm cov khoom siv rau hauv electromagnetic nthwv dej rau kev sib kis. Feem ntau, cov kav hlau txais xov muaj lub luag haujlwm ntawm kev xa thiab txais, tab sis tshwj xeeb, lawv tsuas yog ua haujlwm ntawm kev txais. (xws li xov tooj cua tshaj tawm)

    Lub ntsiab lus ntawm lub kav hlau txais xov yog ib qho cuab yeej uas tuaj yeem ua kom muaj hluav taws xob hluav taws xob zoo nyob rau hauv ib qho kev taw qhia ntawm qhov chaw lossis tau txais hluav taws xob tsis zoo hauv qhov chaw tshwj xeeb.

    Lub luag haujlwm ntawm lub kav hlau txais xov yog xa los yog tau txais hluav taws xob tsis zoo, thaum tseem muaj cov haujlwm hauv qab no:

    1. Lub kav hlau txais xov yuav tsum muaj peev xwm hloov tau ntau npaum li kev coj yoj lub zog raws li ua tau rau hauv hluav taws xob yoj lub zog. Qhov no yog thawj zaug xav kom tus kav hlau txais xov yog qhov zoo electromagnetic qhib system, thiab thib ob xav kom tus kav hlau txais xov kom phim lub transmitter lossis receiver.

    2. Lub kav hlau txais xov yuav tsum tau mloog zoo rau electromagnetic nthwv dej kom ntau li ntau tau nyob rau hauv ib qho kev taw qhia, los yog ua kom siab tshaj qhov kev lees txais ntawm cov nthwv dej tuaj rau hauv ib qho kev taw qhia, uas yog, cov kev taw qhia yuav tsum muaj directionality.

    3. Lub kav hlau txais xov yuav tsum muaj peev xwm xa lossis tau txais cov hluav taws xob tsis zoo nrog cov polarization, uas yog, lub kav hlau txais xov muaj qhov tsim nyog polarization.

    4. Lub kav hlau txais xov yuav tsum muaj kev khiav hauj lwm zaus bands txaus.

    Lub hauv paus ntsiab lus ntawm kav hlau txais xov: Lub kav hlau txais xov xa hluav taws xob tsis zoo, thiab lub hauv paus ntsiab lus ntawm kev tsim hluav taws xob hluav taws xob:

    Raws li Maxwell txoj kev xav ntawm electromagnetic teb, ib qho hluav taws xob hloov pauv hloov pauv hloov pauv hauv qhov chaw nyob ib puag ncig, thiab qhov hloov pauv magnetic teb kuj ua rau hloov hluav taws xob. Nyob rau hauv txoj kev no, qhov hloov hluav taws xob thiab qhov hloov hluav taws xob sib nqus yog sib cuam tshuam, sib koom ua ke, hloov pauv, thiab nthuav tawm tawm ntawm qhov chaw ntawm qee qhov ceev ntawm ze rau deb.

    Peb cov khoom muag zoo tshaj plaws npog ntau homONUseries khoom, nrog rau ACONU/ kev sib txuas lusONU/ ntseONU/ lub thawvONU, etc. Tag nrho covONUseries cov khoom siv tuaj yeem siv rau kev xav tau hauv network hauv ntau yam xwm txheej.

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