A filtering planar magnetoelectric dipole antenna

Abstract

A filtering planar magnetoelectric (ME) dipole antenna is proposed. The proposed ME-dipole antenna is made up of a half-wave dipole used as the electric dipole, a quarter-wave patch with both ends short-circuited used as the magnetic dipole. The electric and magnetic dipoles are placed at the same level of the substrate and fed simultaneously. In addition, a U-shaped metal plate is set below the substrate to introduce a upper stopband radiation null, a symmetric open-ended quarter-wave microstrips printed below the magnetic dipole to produce a lower stopband radiation null. Thus, the proposed antenna expresses good bandpass filtering response. Simulation results declare that the proposed antenna operates at 1.89 GHz with good selectivity, similar radiation patterns at both E and H plane and 6.3% impedance bandwidth from 1.83 to 1.95 GHz..