Title | Compact Concentric Annular-Ring Patch Antenna for Triple-Frequency Operation |
Publication Type | Journal Article |
Year of Publication | 2006 |
Authors | Bao, XL, Ammann, MJ |
Journal Title | Electronics Letters |
Volume | 42 |
Issue | 20 |
Pagination | 1129-1130 |
Journal Date | 09/2006 |
Abstract | A novel single-layer, single-feed concentric annular-ring microstrip patch antenna providing triple-frequency operation is proposed and experimentally studied. This is achieved by embedding a small circular patch into a dual stub-loaded concentric annular-ring structure and by employing a cross-slot in the ground plane. The proposed technique can provide triple-band operation and reduce the antenna size by over 50% compared to the conventional annular-ring patch antenna for a given frequency. Experimental results show the proposed antenna to have impedance bandwidths of 6.38, 6.30 and 35% for the three bands, at 1.17, 1.428 and 1.9 GHz, respectively. The proposed structure is capable of realising a dramatically small frequency ratio. The measured radiation patterns for each band are presented. |
URL | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=1706014 |
DOI | 10.1049/el:20062015 |
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