Za mlongoti, apa ndikuuzeni ~

Antenna, yomwe ingagwiritsidwe ntchito kutumiza zizindikiro ndi kulandira zizindikiro, imasinthidwa, imakhala yofanana, ndipo imatha kuonedwa ngati transducer, yomwe ndi chipangizo cholumikizira pakati pa dera ndi danga.Akagwiritsidwa ntchito potumiza ma siginecha, ma siginecha amagetsi apamwamba kwambiri opangidwa ndi gwero la ma siginoloji amasinthidwa kukhala mafunde amagetsi mumlengalenga ndikutulutsa mbali ina.Akagwiritsidwa ntchito polandila ma siginecha, mafunde a electromagnetic mumlengalenga amasinthidwa kukhala ma siginecha amagetsi ndikutumizidwa kwa wolandila kudzera pa chingwe.

Mlongoti uliwonse uli ndi magawo ena omwe amatha kufotokozedwa bwino, omwe angagwiritsidwe ntchito kuwunika momwe mlongoti umagwirira ntchito, kuphatikiza magawo amagetsi ndi mawonekedwe amakanika.

Zimango katundu wa tinyanga

Dongosolo la antenna losavuta kapena losavuta mawonekedwe

Kukula kwa dimension

Kaya ndi yamphamvu, yodalirika komanso yosavuta kugwiritsa ntchito

Zochita za antenna

Nthawi zambiri

phindu

Antenna factor

Directional chithunzi

mphamvu

kulephera

Voltage stand wave ratio

Gulu la mlongoti

Antennas akhoza kugawidwa m'njira zosiyanasiyana, makamaka:

Gulu ndi ntchito: akhoza kugawidwa mu mlongoti kulankhulana, mlongoti TV, rada mlongoti ndi zina zotero.

Malinga ndi gulu la ma frequency band: litha kugawidwa mu mlongoti wofupikitsa, mlongoti wa ultra-short-wave, mlongoti wa microwave ndi zina zotero.

Malinga ndi gulu la Directivity: akhoza kugawidwa mu mlongoti omnidirectional, directional mlongoti, etc.

Malinga ndi mawonekedwe a mawonekedwe: akhoza kugawidwa mu mlongoti mzere, mlongoti planar ndi zina zotero

Directional antenna: Mayendedwe a mlongoti amangopita kumayendedwe opingasa osakwana madigiri 360.

Tinyanga ta Omnidirectional nthawi zambiri zimatha kugwiritsidwa ntchito kulandira / kutumiza ma siginecha mbali zonse nthawi imodzi.Izi zitha kukhala zofunika ngati siginecha ikufunika kulandilidwa/kufalitsidwa mbali zonse, monga mawayilesi akale.Komabe, nthawi zambiri pamakhala zochitika pomwe mayendedwe a chizindikiro amadziwika kapena ochepa.Mwachitsanzo, ndi telesikopu yawayilesi, zimadziwika kuti ma siginecha azilandilidwa mbali ina (kuchokera mumlengalenga), pomwe tinyanga ta omni-directional sizothandiza kwambiri pakutola ma sign a nyenyezi.Pamenepa, mlongoti wolunjika womwe umakhala ndi phindu lalikulu ukhoza kugwiritsidwa ntchito kulandira mphamvu zambiri zazizindikiro mbali yomwe mwapatsidwa.

Chitsanzo cha mlongoti wolunjika kwambiri ndi mlongoti wa Yagi.Mitundu ya tinyanga iyi ndi ma frequency omwe amagwiritsidwa ntchito potumiza/kulandira ma siginecha olankhulirana pa mtunda wautali pomwe komwe amalowera kapena chandamale chimadziwika.Chitsanzo china cha mlongoti wolunjika kwambiri ndi mlongoti wa nyanga ya waveguide.Tinyanga zimenezi nthawi zambiri zimagwiritsidwa ntchito poyesa ndi kuyeza, monga kuyeza kagwiridwe ka mlongoti wina, kapena polandira/kutumiza zizindikiro mu bandi yapamwamba ya ma frequency a waveguide.Tinyanga zolunjika zimatha kupangidwanso m'mapangidwe opepuka opepuka kuti apange mosavuta pamagawo wamba a RF monga PCBS.Tinyanga tating'onoting'ono timeneti timakonda kugwiritsidwa ntchito polumikizirana ndi ogula komanso m'mafakitale chifukwa ndizotsika mtengo kupanga ndipo ndi zopepuka komanso zazing'ono.