BALANCED DIPOLE ANTENNA

摘要

A balanced dipole antenna has a coaxial cable connected between a load or source and the left and right dipole arms to substantially eliminate common mode current and radiative coupling between the coaxial cable and the left and right dipole arms. The connection between the source/load coaxial cable and the left and right dipo le arms is a symmetric balun having a center branch that is an extension of the source/lo ad coaxial cable, and left and right stubs. When the stubs are segments of coaxial cabl e, the outer conductors of the left and right stubs of the symmetric balun are coupled to the left and right dipole arms, and one of the inner conductors is connected to the inner conductor of the center branch, while the other inner conductor is connected to the outer conductor.