I-dipole egoqiwe iyi-antenna equkethe ama-conductor amabili ahambisanayo axhunywe kuzo zombili izinhlangothi, akha isakhiwo esimise okweluphu evaliwe, lapho indawo yokuphakelayo iphakathi nendawo. Ubude obuphelele be-antenna buyisigamu sobude be-wavelength, yingakho ibizwa nangokuthi i-half-wave-folded dipole antenna.
Ibanga lokuvama
I-antenna ye-dipole egoqwe nge-half-wave isebenza ngaphezu kwebanga lemvamisa elicishe libe ngu-3 kHz kuya ku-300 GHz, futhi isetshenziswa kakhulu kuma-receiver kamabonakude.
Isakhiwo kanye Nesimiso Sokusebenza se-Half-Wave Folded Dipole
Lolu hlobo lwe-antenna luvame ukusetshenziswa luhlanganiswe nama-antenna e-array ukwandisa i-input impedance endaweni yokuphakelayo. Ukusetshenziswa okuvame kakhulu yi-antenna ye-Yagi. Isithombe esingezansi sibonisa i-antenna ye-dipole egoqwe ngesigamu.
Uma kuqhathaniswa ne-antenna evamile ye-dipole, i-antenna ye-dipole egoqiwe ingenisa i-conductor eyengeziwe ehambisanayo (okungukuthi, enye intambo noma induku). Ngokubeka ama-conductor amaningana ahambisanayo eceleni kanye nokufakwa kwe-insulation phakathi kwawo, i-antenna yohlobo lwe-array ingakhiwa.
Isithombe esingezansi sibonisa isimiso sokusebenza se-antenna ye-dipole egoqwe ngesigamu-amagagasi uma ivuselelwe.
Uma ububanzi bomqhubi oyinhloko bufana nobomqhubi ohambisanayo ku-dipole egoqiwe, i-feed-point impedance ye-antenna iyanda ngesilinganiso samane (isikwele samabili). Lokhu kwanda kwe-feed impedance yisona sizathu esiyinhloko esenza i-folded dipole antenna isetshenziswe kabanzi. Ngenxa yokwakhiwa kwayo okunama-twin-lead, i-impedance yayo evamile icishe ibe ngu-300 Ω.
Imodi yemisebe
Iphethini yemisebe ye-dipole egoqwe ngesigamu ifana neye-antenna ye-dipole egoqwe ngesigamu. Isithombe esingezansi sibonisa iphethini yemisebe eqondiswe kuyo yonke indawo yale antenna ye-dipole egoqwe ngesigamu.
I-antenna ye-dipole egoqwe nge-half-wave isetshenziswa ezinhlelweni zokusebenza lapho kudingeka khona ukudluliselwa kwamandla aphezulu futhi lapho kudingeka khona impedance ephezulu.
Le dipole egoqiwe iyisici esiyinhloko esikhipha imisebe ku-antenna ye-Yagi. Isithombe esingezansi sibonisa i-antenna ye-Yagi (ezoxoxwa ngayo ngokuningiliziwe kamuva). Kule antenna, indawo yokuphakelayo ixhunywe ku-dipole egoqiwe njengengxenye eyinhloko. Emashumini ambalwa eminyaka edlule, lolu hlobo lwe-antenna lusetshenziswe kabanzi ekwamukeleni ithelevishini.
Okulandelayo izinzuzo ze-antenna ye-dipole egoqwe nge-half-wave.
1.Ithola izimpawu ezilinganisiwe.
2. Ibamba amasignali afunwayo avela kubhendi ethile yemvamisa ngaphandle kokulahlekelwa yikhwalithi.
3. I-dipole egoqiwe ikhulisa amandla esignali.
Ukuze ufunde kabanzi ngama-antenna, sicela uvakashele:
Isikhathi sokuthunyelwe: Juni-12-2026
