Compact, high isolation, and dual‐polarized differential dual‐notched UWB‐MIMO slot antenna

Abstract

A compact differentially fed ultrawideband‐multiple‐input multiple‐output (UWB‐MIMO) antenna with very high isolation, dual‐polarization, and dual‐notched bands is proposed in this letter. The proposed MIMO antenna consists of two pairs of differential ports which share a common circular radiation slot, making the proposed UWB‐MIMO antenna as compact as one antenna element with the size of 30 × 30 mm2. By arranging two pairs of differential ports orthogonally in the virtual ac ground of each other, the differential isolation can be infinite theoretically and dual‐polarization are obtained. To achieve dual notch‐band, half‐wavelength stubs and slits are introduced. Besides, the radiation characteristic and diversity performance are discussed. Good agreement is achieved between the measured results and simulated results. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2609–2614, 2015

Mimo antenna with high frequency selectivity and controllable bandwidth for band‐notched UWB applications

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Modified circular common element four-port multiple-input-multiple-output antenna using diagonal parasitic element

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