Mawayilesi pafupipafupizongokhala cheteamagwiritsidwa ntchito kwambiri pomanga masiteshoni oyambira opanda zingwe, komanso makina ogawa m'nyumba. Makamaka mu siginecha yopanda zingwe mnyumbayi, pali mitundu yambiri yogwiritsira ntchito pakugawa m'nyumba.
Ma radio frequency passive components amatenga gawo pakulumikiza kapena kugawa ma siginecha a RF pakumanga masiteshoni ndi ntchito zogawa m'nyumba. Dongosolo logawa m'nyumba limalumikiza kapena kugawa chizindikiro chomwe chimaperekedwa ndi malo oyambira kudzera m'zigawo zokhazikika, ndikuchigawa ku tinyanga tating'onoting'ono tomwe timapeza kudzera pa feeder, kuti mukwaniritse kufalikira kosalekeza komanso kwabwino kwa siginecha yamkati yopanda zingwe. Kuti mukhale ndi chidziwitso chowoneka bwino chamkati, makina ogawawa amalumikiza / kugawa chizindikiro chochokera ku siteshoni yoyambira kupita kumalo aliwonse ofikira a antennas kudzera pazigawo zomwe zimagwira ntchito.
Zipangizo zopanda kanthu ndizo zigawo zazikulu za kachitidwe ka antenna feeder.
Classic antenna feeder system topology motere:
Mawayilesi amtundu wamitundu ingapo amatumizidwa ndi siteshoni iliyonse, amaphatikizidwa ndi zida zophatikizira monga zophatikizira ma frequency angapo kapena milatho, kenako zimatumizidwa ku tinyanga tapadenga kapena zopachikika pakhoma zomwe zimagawidwa mnyumba yonse kudzera zingwe. Chizindikiro chophatikizika chingathenso kuphimbidwa mwachindunji ndi coupler, yomwe imagwirizanitsa gawo la chizindikiro. Chifukwa chogwiritsa ntchito zida zambiri, kutayika kwa zida zamapulagi kumachulukana komwe kungapangitse kuti siginecha itsindike kwambiri (kutumiza ma siginecha a RF mtunda wautali, komwe kungapangitse kutsika kwakukulu pakadutsa chingwe.)
Chizindikiro chophatikizika chimalumikizidwa ndi doko lotulutsa la chophatikizira cha ma frequency angapo ngati chogawa chamagetsi (pogwiritsa ntchito chophatikizira chosinthidwa). Chizindikirocho chikasefedwa ndi chophatikizira cha ma frequency angapo, chimatuluka ndi doko lolowera la multi-frequency combiner. Chifukwa cha mawonekedwe osefera a band-pass padoko lililonse, madokowa amangotulutsa siginecha mu bandi yogwira ntchito ya doko lililonse.
Zizindikiro izi zimatha kuperekedwa kwa obwereza apadera amiyezo yosiyanasiyana: kukulitsidwa, kutulutsa, kuphatikizidwa, kenako kukuphimbidwa kuti apereke chiwongola dzanja cha kutayika ndi kuchepetsedwa kwa chizindikiro pa ulalo, ndipo pamapeto pake amakwaniritsa magawo a kapangidwe ka bajeti kuti atsimikizire Kufotokozera zotsatira za mfundo iliyonse.
Choncho monga Mlengi wa zigawo RF kungokhala chete, Jingxin akhoza kukuthandizaniSinthani mwamakonda magawo ongokhalamalinga ndi ntchito. Mwalandiridwa kuti mutilankhule. Zikomo.
Nthawi yotumiza: Sep-24-2021
