Maxay yihiin arrimaha saameeya waxqabadka anteenooyinka GPS-ka?

Tayada budada dhoobada ah iyo habka sinta ayaa si toos ah u saameeya waxqabadka anteenada gps. Baakadaha dhoobada ah ee hadda laga isticmaalo suuqa ayaa ah inta badan 25×25, 18×18, 15×15, iyo 12×12. Baaxadda bedka balastar dhoobada ah, ayaa sii weynaan doonta joogteynta dielectric, sare u kaca inta jeer ee resonant, iyo sida wanaagsan ee soo dhaweynta anteenada GPS.

Lakabka qalinka ah ee korka anteenada dhoobada ah wuxuu saameyn karaa inta jeer ee resonant anteenada. Inta jeer ee ugu habboon ee chip dhoobada GPS waa 1575.42Mhz, laakiin inta jeer ee anteenada ayaa si fudud u saameeya deegaanka ku xeeran, gaar ahaan haddii lagu ururiyo mashiinka oo dhan, daahan dusha lacagta ah waa in la hagaajiyaa. Inta jeer ee anteenada navigation-ka GPS-ka waa la hagaajin karaa si loo ilaaliyo qaabka anteenada GPS-ka ee 1575.42MHz. Sidaa darteed, soo saaraha mashiinka dhamaystiran ee GPS waa inuu la shaqeeyaa soo saaraha anteenada marka ay iibsanayaan anteenada, oo ay bixiyaan muunada mishiinka oo dhamaystiran si loo tijaabiyo.

Barta quudinta waxay saamaysaa waxqabadka anteenada gps
Anteenada dhoobada ahi waxay soo ururisaa calaamada resonant iyada oo loo marayo barta quudinta waxayna u dirtaa dhamaadka dambe. Sababtoo ah qodobka is-waafajinta anteenada, barta quudinta guud ahaan kuma taal bartamaha anteenada, laakiin wax yar ayaa lagu hagaajiyay jihada XY. Habkan isbarbardhigga ah ee u dhigma waa mid fudud oo aan kordhinayn Kharashka, u dhaqaaqida jihada hal dhidib kaliya waxaa loo yaqaan anteeno hal-eex ah, ku dhaqaaqida labada faasna waxaa loo yaqaan anteeno labajibbaaran.

Kordhinta wareegga waxay saamaysaa waxqabadka anteenada gps
Qaabka iyo aagga PCB ee sidata anteenada dhoobada, iyadoo ay ugu wacan tahay dabeecadda dib u soo celinta GPS-ka, marka asalka uu yahay 7cm x 7cm dhul aan kala go' lahayn, waxqabadka anteenada balastar-ka waa la kordhin karaa. Inkasta oo ay xaddidan tahay muuqaalka iyo qaab-dhismeedka, isku day inaad si caddaalad ah u ilaaliso Goobta iyo qaabka cod-weyneyayaashu waa isku mid. Xulashada faa'iidada wareegga cod-weyneeye waa inay la mid noqotaa faa'iidada LNA-da dambe. GSC 3F ee Sirf-ku wuxuu u baahan yahay in wadarta faa'iidada ka hor gelinta calaamadaha waa in aanay dhaafin 29dB, haddii kale calaamada anteenada navigation-ka ee GPS-ka ayaa noqon doonta mid xad-dhaaf ah oo is faraxsan. Anteenada GPS-ku waxay leedahay afar qaybood oo muhiim ah: Gain, Wave Standing (VSWR), Jaantuska qaylada, iyo Ratio Axial, oo ay ka mid yihiin Ratio Axial si gaar ah loo xoojiyay, taas oo ah cabbirka faa'iidada calaamadda mashiinka oo dhan ee jihooyin kala duwan. tilmaame muhiim ah oo kala duwan. Maaddaama dayax-gacmeedyadu si aan kala sooc lahayn loogu qaybiyay cirka hemispherical, aad bay muhiim u tahay in la hubiyo in anteenooyinku ay leeyihiin dareen isku mid ah dhammaan jihooyinka. Saamiga axial waxaa saameeya waxqabadka anteenada GPS, muuqaalka iyo qaab-dhismeedka, wareegga gudaha ee mashiinka oo dhan, iyo EMI.