Summary
International Symposium on Antennas and Propagation
2006
Session Number:2A1b
Session:
Number:2A1b-2
Unique tunable RLC ring resonators to improve the patch antenna bandwidth
Lin Hao, Xingping Peter Lin,
pp.1-4
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
A unique method is introduced to enhance patch antenna bandwidth. Different arrays of multiple layers of different size of ring resonators, each with tunable RLC network, are placed closely to the patch antenna radiation slots or along non radiating edges. The RLC network Q and resonating frequency can be adjusted by changing RLC components. By adjusting the distance between the patch and rings, the distance between rings, the Qs and resonating frequencies of rings, the proper level of coupling and resonate frequency points can be arranged, the patch antenna bandwidth can be significantly increased. The Software Sonnet Suite is used to simulate and optimize a 1.8 GHz rectangular patch antenna with 4 different size ring resonators. 3.5 times bandwidth of 120 MHz bandwidth (7%) is achieved.