Kwihlabathi le-antenna, kukho umthetho onjalo. Xa ngokuthe nkqoipolarized eriyaliihambisa, inokufunyanwa kuphela nge-eriyali ethe nkqo; xa i-eriyali enqamlekileyo ihambisa, inokufunyanwa kuphela nge-eriyali enqamlekileyo; xa isandla sasekunenei-eriyali ejikelezayoidlulisa, inokufunyanwa kuphela nge-eriyali ye-polarized yesandla sasekunene; xa i-eriyali ye-polarized yesandla sasekhohlo idlulisa, inokufunyanwa kuphela nge-eriyali ye-polarized yesandla sasekunene; I-eriyali ejikelezayo ejikelezayo idlulisela kwaye inokufunyanwa kuphela nge-eriyali ejikelezayo esekhohlo esekhohlo.
RM-CPHA82124-20(8.2-12.4GHz)
RM-CPHA1840-12(18-40GHz)
RM-CPHA218-16(2-18GHz)
RFMISOIimveliso ze-eriyali ze-polarized polarized
I-eriyali ebizwa ngokuba yi-vertically polarized antenna ibhekiselele kumaza akhutshwa yi-eriyali, kwaye isalathiso sayo se-polarization sithe nkqo.
Isalathiso se-polarization ye-wave sibhekisela kwicala le-vector yentsimi yombane.
Ngoko ke, ulwalathiso lwe-polarization lwe-wave luthe nkqo, oku kuthetha ukuba ulwalathiso lwe-vector yentsimi yombane luthe nkqo.
Ngokunjalo, i-eriyali ethe tyaba ethe tyaba ithetha ukuba icala lamaza lithe tye, nto leyo ethetha ukuba indawo yombane eya ngakuyo yamaza iwakhuphayo ihambelana nomhlaba.
I-polarization ethe nkqo kunye ne-horizontal polarization zombini iindidi ze-polarization yomgca.
I-polarization ebizwa ngokuba yi-linear polarization ibhekisela kwi-polarization yamaza, oko kukuthi, isalathiso samanqaku ombane kwindawo echanekileyo. Ukulungiswa kuthetha ukuba ayiyi kutshintsha.
I-eriyali eyi-circularly polarized ibhekisela kwi-polarization ye-wave, oko kukuthi, isalathiso sendawo yombane, ejikeleza kwi-angular velocity efanayo njengoko ixesha litshintsha.
Ke kumiselwa njani i-polarization yesandla sasekhohlo kunye nesandla sasekunene?
Impendulo isezandleni zakho.
Khupha izandla zozibini, oobhontsi babo bejongiswe kwicala lokusasazwa kwamaza, uze ubone ukuba yeyiphi iminwe egobileyo yesandla ejikelezayo kwicala elinye nepolarization.
Ukuba isandla sokunene siyafana, yipolarization yesandla sasekunene; ukuba isandla sasekhohlo siyafana, yipolarization yesandla sasekhohlo.
Okulandelayo, ndiza kusebenzisa iifomula ukukucacisela. Ngoku masithi kukho amaza amabini alungelelanisiweyo.
Isalathiso esinye se-polarization yi-x direction kwaye i-amplitude yi-E1; Isalathiso esinye se-polarization yi-y direction kwaye i-amplitude yi-E2; omabini amaza asasazeka kwicala lika-z.
Ukuphakamisa amaza amabini, indawo yombane iyonke yile:
Ukusuka kule fomula ingasentla, zininzi izinto ezinokwenzeka:
(1) E1≠0, E2=0, ngoko icala lepolarization yendiza yamaza yi-x-axis
(2) E1=0, E2≠0, emva koko icala lepolarization yendiza yamaza yi-y-axis
(3) Ukuba u-E1 kunye no-E2 zombini ngamanani okwenyani kwaye ingenguye u-0, ngoko isalathiso sepolarization yendiza yamaza yenza le engile ilandelayo nge-x-axis:
(4) Ukuba kukho umahluko wesigaba esithile phakathi kwe-E1 kunye ne-E2, njengoko kubonisiwe kumzobo ongezantsi, i-wave yenqwelomoya ingaba yi-polarized wave yesandla sasekunene okanye i-polarized wave yesandla sasekhohlo.
Ukuze ii-eriyali ezithe tyaba ezithe nkqo zifumane amaza amiswe ngokuthe nkqo, kunye nee-eriyali ezithe tyaba ezithe tyaba ukufumana amaza anqamlezileyo, unokuyiqonda ngokujonga lo mfanekiso ungezantsi.
Kodwa kuthekani ngamaza ajikelezayo? Kwinkqubo yokufumana i-polarization yesetyhula, ifunyenwe ngokugqithisa iipolarizations ezimbini zomgca kunye nokwahlukana kwesigaba.
Ukuze ufunde ngakumbi ngee-eriyali, nceda undwendwele:
Ixesha lokuposa: May-21-2024
