Design of Rectangular Dielectric Resonator Antenna for Mobile Wireless Application

Abstract

In this article, a pentaband rectangular DRA is explored and presented. The proposed antenna has a crescent-shaped radiating element with defected ground structure and it is feed by 50‐Ω microstrip line. The RDRA invariably has two similar dielectric resonators made up of RT5870 is positioned on top of the crescent-shaped patch. With the use of a dielectric resonator, the proposed structure has good improvement in impedance bandwidth and gain. The proposed rectangular DRA has penta operating frequency bands with resonant frequency at 1.49 GHz, 2.00 GHz, 2.50 GHz, 5.49 GHz, and 7.75 GHz. The projected structure exhibits the broadside radiation pattern with the maximum gain and directivity of 4 dBi and 4.5 dBi, respectively. The gig of the projected RDRA is validated with the help of simulated results by CST software. The observed results of the proposed antenna indicate that it can be a potential candidate for GPS, PCS, UMTS, ISM, WLAN, Wi-MAX applications.

A Novel Compact Dual Notch With High-Gain Multi-Layer Dielectric Resonator Antenna for Ultrawide-Band Applications

“…For a long time, a dielectric resonator (DR) was used in microwave circuits as a filter or an energy storage device. In the 1980s, the use of a dielectric resonator (DR) as an antenna was introduced [1,2]. DRAs (dielectric resonator antennas) are gaining popularity due to several appealing features such as light weight, wide bandwidth, ease of implementation, and high-power capability.…”