A Polarization Diverse Antenna for Dual-Band WLAN Applications

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Executive Summary

A Dual-Band Dual-Polarized (DBDP) array antenna is proposed for Wireless Local Area Network (WLAN) applications. A four-element array is used to facilitate operation in both the standard WLAN frequency bands, while also incorporating the capacity to send/receive arbitrary orthogonal polarizations. The presented compact structure is characterized by wide bandwidths, average gains of 5.5 dBi and 7.0 dBi over the 2.4 and 5.2 GHz bands respectively, high F-to-B ratios, stable radiation patterns, as well as cross-polarization levels below 30 dB relative to the boresight.

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