Defected ground structure loaded with meandered lines for decoupling of dual-band antenna

Qinlong Li, Muhammad Abdullah and Xiaoming Chen

Journal of Electromagnetic Waves and Applications, 2019, vol. 33, issue 13, 1764-1775

Abstract: A defected ground structure (DGS) loaded with meandered lines is proposed to reduce mutual coupling of a dual-band planar multiple-input multiple-output (MIMO) antenna. To verify the effectiveness of a proposed DGS, a dual-band MIMO antenna is designed and manufactured. The antenna consists of two planar-inverted F-antenna (PIFA) elements printed symmetrically for dual-band operation. The DGS is placed between these two PIFA elements to reduce mutual coupling. The DGS consists of a slot and a pair of meander lines inside it, hence generating two independently tuneable resonances. A two element MIMO antenna is studied using computer simulation and a final design is manufactured. The antenna is measured using the Satimo Starlab system. Simulation results show that the MIMO antenna has the bandwidths (S11 & S22

Date: 2019
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DOI: 10.1080/09205071.2019.1643261

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