Research on a Method for Effectively Improving the Bandwidth of Dipole Antennas

Abstract

In order to improve the bandwidth of the dipole antenna, a parallel fence-shaped dipole is proposed. The traveling wave component perpendicular to the direction of the dipole arm is increased by the coupling of current between the fence-shaped arms, thereby reducing the reflection occurring on the dipole. Through the CST Microwave Studio® modeling and simulation, when the structural dimensions are similar, the relative bandwidth of the proposed parallel fence-shaped dipole is increased to 2.4 times that of the common shaped planar dipole, and its radiation performance is comparable to common shaped planar dipole.