Dual-Band Compact DRA With Circular and Monopole-Like Linear Polarizations as a Concept for GPS and WLAN Applications

Author

Hady, Laila K. ; Kishk, Ahmed A. ; Kajfez, Darko

Author_Institution

Dept. of Electr. Eng., Univ. of Mississippi, Oxford, MS, USA

Volume

57

Issue

9

fYear

2009

Firstpage

2591

Lastpage

2598

Abstract

The concept of achieving a dual-band antenna with two different radiation patterns using a single cylindrical dielectric resonator is presented. Both simulated and experimental measured results are conducted to prove the validity of the proposed concept. A broadside circularly-polarized pattern with 7% bandwidth and a vertically polarized omnidirectional pattern with 17.3% bandwidth are obtained, simultaneously. The minimum measured axial ratio is found to be 1.3 dB. The front-to-back ratio is measured to be 15 dB. A design suitable for both Global Positioning System and wireless local area network applications is proposed.

Keywords

Global Positioning System; antenna radiation patterns; dielectric resonator antennas; electromagnetic wave polarisation; monopole antennas; multifrequency antennas; wireless LAN; GPS; Global Positioning System; WLAN application; circular linear polarization; cylindrical dielectric resonator antenna; dual-band compact DRA; monopole-like linear polarization; omnidirectional radiation pattern; wireless local area network; Antenna measurements; Bandwidth; Dielectric measurements; Dielectric resonator antennas; Dielectric substrates; Dual band; Global Positioning System; Microstrip resonators; Polarization; Wireless LAN; Wireless communication; Circularly-polarized antenna; Global Positioning System (GPS); Wireless Local Area Network (WLAN); cylindrical dielectric resonator; dual-band antenna; omnidirectional antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2024488

Filename

5067354