I-folded dipole yi-antenna equlathe ii-conductors ezimbini ezidibeneyo ezidityaniswe kuzo zombini iziphelo, zenza isakhiwo esimile okweluphu evaliweyo, apho indawo yokuphakelwa ikwimbindi. Ubude obupheleleyo be-antenna buyisiqingatha sobude bomda, yiyo loo nto ikwabizwa ngokuba yi-half-wave-folded dipole antenna.
Uluhlu lwefrikhwensi
I-antenna ye-half-wave folded dipole ende isebenza kuluhlu lweefrikhwensi olumalunga ne-3 kHz ukuya kwi-300 GHz, kwaye isetyenziswa kakhulu kwiireceiver zikamabonwakude.
Ulwakhiwo kunye noMgaqo-nkqubo woKusebenza weHalf-Wave Folded Dipole
Olu hlobo lwe-antenna ludla ngokusetyenziswa kunye nee-antennas ezidibeneyo ukwandisa i-input impedance kwindawo yokuphakela. Eyona ndlela iqhelekileyo yokusebenzisa yi-antenna yeYagi. Umfanekiso ongezantsi ubonisa i-antenna ye-dipole egoqwe nge-half-wave.
Xa kuthelekiswa ne-antenna ye-dipole eqhelekileyo, i-antenna ye-dipole egobileyo ingenisa i-conductor eyongezelelweyo ehambelanayo (oko kukuthi, enye intambo okanye intonga). Ngokubeka ii-conductors ezininzi ezihambelanayo ecaleni kwelinye icala kunye ne-insulation phakathi kwazo, i-antenna yohlobo lwe-array inokwenziwa.
Umfanekiso ongezantsi ubonisa umgaqo wokusebenza kwe-antenna ye-dipole egoqwe ngesiqingatha-samaza xa ivuselelwe.
Ukuba ububanzi bomqhubi oyintloko bufana nobomqhubi ohambahambayo kwi-dipole egoqiweyo, i-feed-point impedance ye-antenna iyanda nge-factor yesine (isikwere sesibini). Oku kunyuka kwe-feed impedance sesona sizathu sokuba i-antenna egoqiweyo isetyenziswa kakhulu. Ngenxa yokwakhiwa kwayo kwe-twin-lead, i-impedance yayo eqhelekileyo imalunga ne-300 Ω.
Imo yokukhanya
Ipateni yemitha ye-dipole egoqwe ngesiqingatha-samaza iyafana neye-antenna ye-dipole egoqwe ngesiqingatha-samaza. Umfanekiso ongezantsi ubonisa ipateni yemitha ye-omnidirectional yale antenna ye-dipole egoqwe ngesiqingatha-samaza.
I-antenna ye-dipole egoqwe nge-half-wave isetyenziswa kwiindawo apho kufuneka udluliselo lwamandla aphezulu kwaye apho kufuneka khona i-impedance ephezulu.
Le dipole egoqiweyo yeyona nto iphambili ekhupha imitha kwi-antenna yeYagi. Umfanekiso ongezantsi ubonisa i-antenna yeYagi (eza kuxoxwa ngayo ngokweenkcukacha kamva). Kule antenna, indawo yokuphakelwa iqhagamshelwe kwi-lipole egoqiweyo njengeyona nto iphambili. Kwiminyaka embalwa edlulileyo, olu hlobo lwe-antenna lusetyenziswe kakhulu ekufumaneni umabonwakude.
Ezi zilandelayo ziingenelo ze-antenna ye-dipole egoqwe nge-half-wave.
1.Ifumana imiqondiso elinganayo.
2.Ibamba imiqondiso efunekayo evela kwibhendi ethile yefrikhwensi ngaphandle kokulahlekelwa ngumgangatho.
3. I-dipole egobileyo inika amandla esignali amandla aphezulu.
Ukuze ufunde okungakumbi ngee-antenna, nceda undwendwele:
Ixesha lokuthumela: Juni-12-2026
