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IEEE Transactions on Antennas and Propagation
Volume 47 Number 12, December 1999

Table of Contents for this issue

Complete paper in PDF format

Stacked Patches Using High and Low Dielectric Constant Material Combinations

Rod B. Waterhouse, Member, IEEE

Page 1767.

Abstract:

In this paper, the performance of stacked patches incorporating a high and low dielectric constant material combination is presented. Such a printed antenna is applicable for cases where photonic and microwave devices need to be directly integrated with the antenna. It will be shown that 10-dB return-loss bandwidths in excess of 25% can be achieved with such a configuration. Importantly, the surface wave efficiency across this band of frequencies is high--greater than 85%. It will also be shown that these stacked patches have lower cross-polarization levels compared to a conventional stacked patch and, thus, are very suited to circular polarization applications. Two circular polarization (CP) configurations are presented and experimentally verified. The single- and dual-feed configurations have 3-dB axial ratio bandwidths of 18% and 32%, respectively.

References

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