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2014-05-05

Compact UWB MIMO Antenna with ACS-Fed Structure

By Hao Qin and Yuan-Fu Liu
Progress In Electromagnetics Research C, Vol. 50, 29-37, 2014
doi:10.2528/PIERC14033105

Abstract

A compact UWB (Ultrawideband) MIMO (Multiple-input multiple-output) antenna with asymmetric coplanar strip (ACS)-fed structure is proposed in this paper. The antenna consists of two modified ACS feeding staircase-shaped radiation elements which are orthogonally placed, and the wideband isolation is achieved through a fence-like stub between them. The effectiveness of the fence-like stub is analyzed. Measured results show that the presented antenna can achieve a broad impedance bandwidth (|S11|≤-10 dB) of 3.1-11 GHz with good performance in terms of isolation >15 dB. Radiation patterns and correlation coefficient (ECC) denote the consistent diversity performance across the entire UWB bandwidth. By introducing the ACS-fed structure, the antenna size can be considerably reduced to 43.5 mm×43.5 mm×1.6 mm compared to the recently published UWB MIMO antennas, which makes the antenna suitable for portable UWB MIMO applications.

Citation


Hao Qin and Yuan-Fu Liu, "Compact UWB MIMO Antenna with ACS-Fed Structure," Progress In Electromagnetics Research C, Vol. 50, 29-37, 2014.
doi:10.2528/PIERC14033105
http://jpier.org/PIERC/pier.php?paper=14033105

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