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Progress In Electromagnetics Research Letters
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LOW PROFILE DUAL-POLARIZED CIRCULAR PATCH ANTENNA WITH AN AMC REFLECTOR

By J. Ren, B. Wang, and Y.-Z. Yin

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Abstract:
A coax-feed low profile dual-polarized circular patch antenna with ±45˚ polarization is presented. The antenna consists of a dual-polarized circular patch excited by two coax-lines and an AMC reflector. By using the AMC reflector as the ground plane of the patch antenna, the profile of the antenna is reduced to λ/8 of the operation frequency, which is much lower than that of the conventional dual-polarized patch antenna. The experimental results show that the proposed design obtains a wide bandwidth (2.12-2.77 GHz) and a high isolation (>35 dB) over the entire band. In addition, the front-back radio of the antenna is improved significantly by using the AMC reflector. The wide bandwidth, low-profile and high front-to-back ratio make the antenna a good candidate as a base station antenna for WLAN, WiMAX and LTE applications.

Citation:
J. Ren, B. Wang, and Y.-Z. Yin, "Low Profile Dual-Polarized Circular Patch Antenna with an AMC Reflector," Progress In Electromagnetics Research Letters, Vol. 47, 131-137, 2014.
doi:10.2528/PIERL14062604

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