A Low-Profile Stacked Dielectric Resonator Antenna With High-Gain and Wide Bandwidth

摘要

A wideband, low profile and high gain dielectric resonator antenna is investigated in this letter. The antenna consists of two dielectric layers with different permittivities and it is centrally fed by a rectangular slot. By placing the dielectric layer of low permittivity (2.2) below that of high permittivity (15), the antenna with low profile of can obtain a 10-dB impedance bandwidth of and an average gain of .