Title :
A Broadband Center-Fed Circular Patch-Ring Antenna With a Monopole Like Radiation Pattern
Author :
Al-Zoubi, Asem ; Yang, Fan ; Kishk, Ahmed
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, MS
fDate :
3/1/2009 12:00:00 AM
Abstract :
A center-fed circular microstrip patch antenna with a coupled annular ring is presented. This antenna has a low profile configuration with a monopole like radiation pattern. Compared to the center-fed circular patch antenna (CPA), the proposed antenna has a large bandwidth and similar radiation pattern. The proposed antenna is fabricated and tested. It resonates at 5.8 GHz, the corresponding impedance bandwidth and gain are 12.8% and 5.7 dBi, respectively. Very good agreement between the measurement and simulation for the return loss and radiation patterns is achieved.
Keywords :
antenna feeds; antenna radiation patterns; broadband antennas; microstrip antennas; broadband center-fed circular patch-ring antenna; center-fed circular microstrip patch antenna; coupled annular ring; frequency 5.8 GHz; impedance bandwidth; monopole like radiation pattern; return loss; Antenna radiation patterns; Bandwidth; Broadband antennas; Coaxial components; Dielectric constant; Dielectric substrates; Geometry; Microstrip antennas; Patch antennas; Probes; Annular ring; circular patch antenna (CPA); microstrip antenna; monopole;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2008.2011406
