Antenna ya kunja kwa modemu ya 3G - zifukwa zogwiritsira ntchito chipangizochi

Munthu aliyense amene adagula modem ya 3G, posachedwa, akukumana ndi vuto la kulandila kosavomerezeka. Pa mlingo wake wofooka, mawonekedwe apansi a modem ya 3G angathandize. Kugwiritsa ntchito kwake kwakukulu kumawonjezera mlingo wa chizindikiro chovomerezeka. Pulogalamu ya kunja ya 3G-modem imalola nthawi zina kupititsa patsogolo kufalitsa uthenga. Icho chimaperekedwa mwa mawonekedwe a galimoto yopanga. Pachifukwa ichi, adapita zosagwiritsa ntchito zimagwiritsidwa ntchito. Amatulutsanso chizindikiro kuchokera ku modem kupita ku antenna yakunja. Izi zikutanthauza kuti ndondomekoyi ndi yotsatila imodzi: Kutsegula kwapadera kwa 3G modem, intaneti mkati ndi makina opambana a coaxial RF omwe ali ndi coefficient yochepetsera kuchepa pafupipafupi 2100 MHz. Zonsezi zingagulidwe pa sitolo yapadera, kapena mungathe kupanga chipangizo chapanokha nokha.

Zomangamanga zosavuta

Chingwe chakunja cha modem ya 3G ndi manja anu sivuta. Chimodzi mwa zojambula zoterezi chimaperekedwa pa intaneti nthawi zambiri. Ichi ndi chithunzi cha modem ya Kharchenko 3G. Amatchedwanso "eyiti" chifukwa cha mawonekedwe ake. Maziko ake ndiwotchulidwa ku Harchenko, kukumbukira zowonjezera zisanu ndi zitatu zokhala ndi nsalu ziwiri, zomwe mlembiyo adapereka kuti alandire chithandizo cha televizioni mu decimeter range. Komabe, kuti muigwiritse ntchito monga chizindikiro cha 3G, zotsatila zina ziyenera kupangidwira kupanga. Idzakuthandizira kulimbitsa chizindikiro, ngati chiri. Ngati chizindikiro cha GSM sichoncho, ndibwino kugwiritsa ntchito njira ina, pogwiritsa ntchito mbale ya satana. "Eight" ayenera kupangidwa ndi waya wamkuwa gawo 4mm², omwe angagulidwe mu sitolo iliyonse yamagetsi. Mpikisano wa chipangizo cholandirira ndi wotsika kuchokera ku waya. Awa ndi nsapato ziwiri zokhala ndi mbali ya 53 mm ndi makilogalamu awiri a 120 ° pa nsonga zazitali za nsalu zokhala ndi nsalu. "Chachisanu ndi chitatu sichingagwirizane pakati, monga momwe chiwonetserocho chili, pali kusiyana kwa mpweya wa 5 mm, ndipo izi ndi zofunika. Mapeto a dera amatsekedwa ndi soldering. Za aluminiyamu pepala lakuya kwa 2 mm, muyenera kudula mbale 140x140 mm, yomwe idzachita mbali yawonetsera. Pakatikati mwa mbaleyo, dzenje likufalikira pa chingwe ndi pakati pa 8-10 mm. Mpikisano uli wokwanira 36 mm pamwamba pa zowonetsera. Iye sayenera kumukhudza iye kulikonse. Kuti muchite izi, fasteners amapangidwa ndi dielectric. Iwo akhoza kukhala pulasitiki. Tsopano mukuyenera kusankha momwe mungakwirire chipangizo pa khoma. Kuti muchite izi, mungagwiritse ntchito kachipangizo kuchokera ku mbale ya satana. Chingwecho chimagulitsidwa ku antenna. Ndibwino kuti mugwiritse ntchito chingwe cha coaxial 75 Ohm. Komabe, zinapezeka poyesera kuti pamene maulendo 2100MHz amalandila, omwe ali ofanana ndi HSDPA mlingo, chizindikiro cha mphamvu zoterezi chimachitika chomwe, pakutsutsa pamwamba pa 50 ohms, nthawi yomweyo imatha. Choncho, akukonzekera kugwiritsa ntchito chingwe ndi kutsutsa kwa 50 ohms. Ndi chingwe chotere, wopanga amapangidwa ndi mkuwa, ndipo amatha kusonkhanitsa mosavuta ndi soldering. Chipangizocho chiyenera kukhazikitsidwa ndikukhazikitsidwa m'malo. Kumapeto ena a chingwe, chipangizo chofananamo chaikidwa. Izi zidzafuna zojambula zamkuwa. Chojambula choterechi chingapezeke mwa kuchotseratu transformer yakale, kapena kungoigula mu sitolo yapadera. Chophimba chapadera chimapangidwa ndi zojambulajambula. Mbali imodzi ya chivundikirochi iyenera kukhala 45 mm. Nkhaniyi sayenera kukhazikika mwatsatanetsatane ndi chida chathu cha 3G.

Pogwiritsa ntchito chingwe, mukufunikira chidutswa cha 27x76 mm. Chibokosicho chimagulitsidwa kumtundu uwu wa zojambulazo zomwe zimaphimba chivundikirocho, koma palibe paliponse chomwe chimakhudza icho, ndipo chingwe chachitsulo chimagulitsidwa ku chivundikiro chomwecho. Koma sikufunikiranso kugwiritsira ntchito mwachindunji nkhani ya modem. Kwenikweni, mchere wa kunja kwa 3gG-modem ili wokonzeka kugwira ntchito. Tsopano mukufunika kuti muzisinthe, mutangoyang'ana pa phiri mukufunafuna phwando labwino la ma signal.