volume | PIER Journals

2015-08-23

Compact 4-Port ACS-Fed UWB-MIMO Antenna with Shared Radiators

Jing-Yi Zhang,

Dr. Jing-Yi Zhang

Research Institute of Electronic Science and Technology

University of Electronic Science and Technology of China

China

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Fan Zhang,

Dr. Fan Zhang

Research Institute of Electronic Science and Technology

University of Electronic Science and Technology of China

China

Homepage

Wen-Peng Tian

Dr. Wen-Peng Tian

Research Institute of Electronic Science and Technology

University of Electronic Science and Technology of China

China

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Progress In Electromagnetics Research Letters, Vol. 55, 81-88, 2015

doi:10.2528/PIERL15062304

Abstract

A compact 4-port asymmetric coplanar strip (ACS)-fed MIMO antenna working in the ultra-wideband (UWB) frequency band with two shared radiators is presented in this paper. The proposed antenna is composed of two radiators, and each radiator is shared by two antenna elements in order to achieve a very compact size of 36×36 mm². By etching two I-shaped slots in the radiators and attaching a rectangular patch on the back, the operating band width is broadened, and the isolation between any two antenna elements is enhanced. The stub of the ground also has great effect on the return loss and isolation. The working frequency band of the MIMO antenna covers 3.1-10.6 GHz with isolation over 15 dB between any two antenna elements. Furthermore, the proposed antenna with a simple feeding structure and compact size makes it possible to be used in portable devices.

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Jing-Yi Zhang, Fan Zhang, and Wen-Peng Tian, "Compact 4-Port ACS-Fed UWB-MIMO Antenna with Shared Radiators," Progress In Electromagnetics Research Letters, Vol. 55, 81-88, 2015.
doi:10.2528/PIERL15062304

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