Isolation Improvement in a Dual-Band Dual-Element MIMO Antenna System Using Capacitively Loaded Loops

By Mohammad S. Sharawi, A. B. Numan, Daniel N. Aloi. 2013

103 citations recorded by the source corpus.

A dual-band dual-element multiple-input-multiple-output (MIMO) antenna system with enhanced isolation is proposed. The MIMO antenna system is based on printed 4-shaped antenna elements. Dual band isolation is achieved by using an array of printed capacitively loaded loops (CLLs) on the top side of the board for high band isolation improvement and a complementary CLL structure on the GND plane of the antenna for lower band isolation improvement. The lower band of operation covers 827{853MHz and the higher band covers 2.3{ 2.98GHz. Two prototypes were investigated to access the efiect of the isolation mechanism. Measured isolation improvement of 10dB was observed in the lower operating band while the improvement in the higher band was approximately 2.5dB. The isolation improvement was at the expense of 5% reduction in e-ciency. The measured gain patterns as well MIMO flgures of merits such as the correlation factor, TARC and MEG were investigated as well.

Subfields: Aerospace Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/da607639eff9c3de789683c29d976450aa72de21

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In Aerospace Engineering

In Electrical and Electronic Engineering

Citations in the corpus

Study on Mutual Coupling Reduction Technique for MIMO Antennas (2019, background): “to multipath propagation problem due to high correlation factor in the multi-signal broadcasting [15], [16].”
Dual-Band Textile MIMO Antenna Based on Substrate-Integrated Waveguide (SIW) Technology (2015, background): “, a decoupling stub [30], slots on the ground [31], characteristic modes on ground [32], a metamaterial isolator [33], polarization, and space diversity [18], [34].”