- Waa maxay faa'iidada anteenada?
Anteenadafaa'iidada waxaa loola jeedaa saamiga cufnaanta awoodda signalka ay dhaliso anteenada dhabta ah iyo unugga shucaaca ugu habboon ee isla goobta bannaan ee hoos yimaada xaaladda awoodda gelinta siman. Tiro ahaan waxay qeexaysaa heerka uu anteenadu u iftiiminayso awoodda wax gelinta si habaysan. Faa'iidada ayaa si cad ugu dhow inay la xiriirto qaabka anteenada. Sida cidhiidhiga ah ee lafaha ugu weyn ee qaabka iyo inta yar ee lafaha dhinaca, ayaa kor u kacaya faa'iidada. Faa'iidada anteenada waxaa loo isticmaalaa in lagu cabbiro awoodda anteenadu u dirto oo ay ku hesho calaamadaha jihada gaar ah. Waa mid ka mid ah halbeegyada ugu muhiimsan ee xulashada anteenooyinka saldhigga saldhigga.
Guud ahaan, horumarinta faa'iidada waxay inta badan ku tiirsan tahay dhimista ballaca iftiinka shucaaca toosan iyadoo la ilaalinayo waxqabadka shucaaca jihada dhan ee diyaaradda jiifka. Faa'iidada anteenada ayaa aad muhiim ugu ah tayada hawlgalka ee hababka isgaarsiinta mobaylada sababtoo ah waxay go'aamisaa heerka signalka cidhifka gacanta. Kordhinta faa'iidada waxay kordhin kartaa daboolida shabakada jihada cayiman, ama waxay kordhin kartaa faa'iidada faa'iidada ilaa xad go'an. Nidaam kasta oo gacanta ah waa hab-socodka laba-geesoodka ah. Kordhinta faa'iidada anteenada waxay isla mar ahaantaa hoos u dhigi kartaa faa'iidada miisaaniyada nidaamka labada dhinac. Intaa waxaa dheer, xuduudaha u taagan faa'iidada anteenada waa dBd iyo dBi. dBi waa faa'iidada la xiriirta anteenada isha isha, iyo shucaaca jihooyinka oo dhan waa lebis; dBd waxay u dhigantaa faa'iidada anteenada summeeyeyaasha ah dBi=dBd+2.15. Isla shuruudo la mid ah, korodhka faa'iidada, waa dheeraanta fogaanta hirarka raadiyaha.
jaantuska helitaanka anteenada
Markaad dooranayso faa'iidada anteenada, waa in lagu go'aamiyaa iyadoo lagu saleynayo baahida codsiga gaarka ah.
- Isgaarsiinta fogaanta gaaban: Haddii masaafada isgaarsiintu ay gaaban tahay oo aysan jirin caqabado badan, faa'iidada anteenada sare waxaa laga yaabaa inaan loo baahnayn. Xaaladdan oo kale, faa'iido hoose (sida0-10dB) waa la dooran karaa.
RM-BDHA0308-8 (0.3-0.8GHz,8 Typ.dBi)
Isgaarsiinta masaafada-dhexe: Isgaarsiinta masaafada-dhexe, faa'iidada anteenada dhexdhexaadka ah ayaa laga yaabaa in loo baahdo si loo magdhabo attenuation signal Q ee ay sababtay fogaanta gudbinta, iyadoo sidoo kale la tixgelinayo caqabadaha deegaanka. Xaaladdan oo kale, faa'iidada anteenada ayaa la dejin karaa inta u dhaxaysa10 iyo 20 dB.
RM-SGHA28-15 (26.5-40 GHz, 15 Nooca dBi)
Isgaarsiinta fogfog: Xaaladaha isgaarsiinta ee u baahan in ay daboosho masaafo dheer ama ay leedahay caqabado badan, faa'iidada anteenada sare ayaa laga yaabaa in loo baahdo si ay u bixiso xoog calaamad ku filan si looga gudbo caqabadaha fogaanta gudbinta iyo caqabadaha. Xaaladdan oo kale, faa'iidada anteenada ayaa la dejin karaa inta u dhaxaysa 20 iyo 30 dB.
RM-SGHA2.2-25(325-500GHz,25 Nooca dBi)
Deegaanka buuqa badan: Haddii ay jirto faragelin badan iyo buuq ka jira deegaanka isgaadhsiinta, anteenooyinka faa'iidada badan waxay gacan ka geysan karaan hagaajinta saamiga signal-ilaa-sanqa oo sidaas darteed wanaajiya tayada isgaarsiinta.
Waa in la ogaadaa in kordhinta faa'iidada anteenada ay la socon karto allabaryo dhinacyo kale ah, sida toosinta anteenada, caymiska, kharashka, iwm. Sidaa darteed, marka la dooranayo faa'iidada anteenada, waxaa lagama maarmaan ah in la tixgeliyo arrimo kala duwan oo la sameeyo go'aamo ku habboon oo ku salaysan kuwa gaarka ah. xaalad. Habka ugu fiican waa in la sameeyo imtixaanada goobta ama la isticmaalo software jilitaanka si loo qiimeeyo waxqabadka hoos yimaada qiyamka faa'iidada kala duwan si loo helo goobta ugu habboon ee faa'iidada dabiiciga ah.
Si aad wax badan uga ogaato anteenooyinka, fadlan booqo:
Waqtiga boostada: Nov-14-2024