Dunida anteenada, waxaa jira sharci noocaas ah.Marka toosananteeno kala duwangudbiya, waxa kaliya oo lagu heli karaa anteeno toosan;marka anteenada si toosan u gudbiso, waxa kaliya oo heli kara anteeno toosan;marka gacanta midiganteeno wareeg ahgudbiya, waxa kaliya oo lagu heli karaa anteeno wareeg ah oo gacanta midig ah;marka anteenada wareegta ah ee gacanta bidix ay gudbiso, waxa kaliya oo heli kara anteeno wareeg ah oo gacanta midig ah;Anteenada wareegta ah ayaa gudbisa waxaana kaliya oo heli kara anteeno wareeg ah oo gacanta bidix ah.
RM-CPHA82124-20 (8.2-12.4GHz)
RM-CPHA1840kii-12 (18-40GHz)
RM-CPHA218-16 (2-18GHz)
RFMISOAlaabta anteenada geesaha ee wareegta ah
Anteenada waxa loogu yeero vertically polarized waxaa loola jeedaa mawjada ay anteenadu soo saarto, jihada dabayshana waa mid toosan.
Jihada polarization ee mawjadu waxay tilmaamaysaa jihada vector beerta korontada.
Sidaa darteed, jihada polarization ee mawjadu waa mid toosan, taas oo macnaheedu yahay in jihada fiilada korantada ay tahay mid toosan.
Sidoo kale, anteenada si toos ah u siman waxay ka dhigan tahay in jihada mawjadaha ay tahay mid toosan, taas oo macnaheedu yahay in jihada goobta korontada ee hirarka ay sii daayaan ay la siman yihiin dhulka.
Polarization vertical iyo horizontal polarization waa labada nooc ee polarization toosan.
Waxa loogu yeero polarization linear waxaa loola jeedaa polarization of mowjadaha, taas oo ah, jihada bareeg koronto ee jihada go'an.Go'an waxay ka dhigan tahay inaysan isbeddeli doonin.
Anteenada wareegta ah waxay tilmaamaysaa polarization of mowjadda, taas oo ah, jihada beerta korantada, taas oo ku wareegaysa xawaare xagal lebbisan w marka isbedel waqti.
Haddaba sidee loo go'aamiyaa kala-soocidda wareegtada gacanta bidix iyo midig?
Jawaabtu waa gacmahaaga.
Ka soo saar labada gacmood, iyaga oo suulka ay ku fiiqayaan jihada mawjada faafinteeda, ka dibna eeg faraha gacanta ee foorarsan ee u wareegaya isla jihada dabaysha.
Haddii gacanta midig ay isku mid tahay, waa polarization-ka midigta;haddii gacanta bidix ay la mid tahay, waa polarization-ka bidix.
Marka xigta, waxaan isticmaali doonaa qaacido si aan kuu sharaxo.Hadda ka soo qaad inay jiraan laba mowjadood oo toosan.
Mid ka mid ah jihada polarization waa jihada x iyo baaxaddu waa E1;hal jihada polarization waa jihada y iyo baaxadda waa E2;Labada mowjadoodba waxay ku faafiyaan jihada z.
Iyadoo kor loo qaadayo labada mowjadood, wadarta guud ee korontada waa:
Laga soo bilaabo qaacidada sare, waxaa jira fursado badan:
(1) E1≠0, E2=0, markaas jihada polarization ee hirarka diyaaraddu waa dhidibka x
(2) E1=0, E2≠0, markaas jihada polarization ee hirarka diyaaraddu waa dhidibka y
(3) Haddii E1 iyo E2 ay yihiin tirooyinka dhabta ah oo aan ahayn 0, markaa jihada polarization ee mawjada diyaaraddu waxay samaysaa xagasha soo socota ee dhidibka x:
(4) Haddii uu jiro farqi weji gaar ah oo u dhexeeya E1 iyo E2, sida ku cad sawirka hoose, mowjadda diyaaraddu waxay noqon kartaa mawjad wareeg ah oo wareeg ah oo gacanta midig ah ama mid wareeg ah oo gacanta bidix ah.
Anteenooyinka toosan si ay u helaan mowjado toosan oo toosan, iyo anteenooyinkooda si ay u helaan mowjado toosan, waxaad ku fahmi kartaa adiga oo fiirinaya sawirka hoose.
Laakiin ka waran hirarka wareegta ah?Habka soo saarista polarization-ka wareegtada, waxa lagu helaa iyada oo kor loo qaadayo laba polarizations toos ah oo leh kala duwanaansho waji.
Si aad wax badan uga ogaato anteenooyinka, fadlan booqo:
Waqtiga boostada: Meey-21-2024
