volume | PIER Journals

2014-04-20

A Single-Layer Wideband Dual-Polarized Antenna with High Isolation

Ruina Lian,

Dr. Ruina Lian

National Laboratory of Science and Technology on Antennas and Microwaves

Xidian University

China

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Shu-Feng Zheng,

Dr. Shu-Feng Zheng

Xidian University

China

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Ying-Zeng Yin,

Professor Ying-Zeng Yin

Xidian University

China

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Jianjun Wu,

Dr. Jianjun Wu

National Laboratory of Science and Technology on Antennas and Microwaves

Xidian University

China

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Shaoshuai Zhang,

Dr. Shaoshuai Zhang

National Key Laboratory of Antennas and Microwave Technology

Xidian University

China

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Guanxi Zhang

Dr. Guanxi Zhang

National Key Laboratory of Antennas and Microwave Technology

Xidian University

China

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Progress In Electromagnetics Research C, Vol. 49, 115-122, 2014

doi:10.2528/PIERC14031904

Abstract

A single-layer wideband printed antenna for dual-polarized applications is proposed in this paper. Two orthogonal linear polarizations are achieved by adopting a hybrid feeding technique. The horizontal polarization is excited by an aperture-coupled microstrip feed line while the coplanar waveguide (CPW) feed line is responsible for the vertical polarization. Measurements demonstrate a fairly wide common impedance bandwidth of 56.3% (1.61-2.87 GHz) with SWR ≤ 2 could be achieved. By loading a rectangular patch in the narrow rectangular slot, the isolation between two ports can be improved to better than 40dB over the entire bandwidth. Moreover, the average gains of the proposed antenna are about 5.8 dBi and 5 dBi for port 1 and port 2, respectively.

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Ruina Lian, Shu-Feng Zheng, Ying-Zeng Yin, Jianjun Wu, Shaoshuai Zhang, and Guanxi Zhang, "A Single-Layer Wideband Dual-Polarized Antenna with High Isolation," Progress In Electromagnetics Research C, Vol. 49, 115-122, 2014.
doi:10.2528/PIERC14031904

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