Compact MIMO Antenna for Portable UWB Applications With Band-Notched Characteristic


A multiple-input-multiple-output (MIMO) band-notched antenna with a compact size of only is proposed for portable ultrawideband (UWB) applications. The antenna consists of 2 sq. monopole-antenna parts, a T-shaped ground stub, a vertical slot cut on the T-formed ground stub to cut back mutual coupling, and 2 strips on the bottom plane to create a notched frequency band. Simulation and measurement are used to check the antenna performance in terms of impedance matching, isolation between the two input ports, radiation pattern, efficiency, peak gain, and envelope correlation coefficient. Results show that the antenna can operate from three.1 to a lot of than eleven GHz with a notched band in 5.fifteen–five.85 GHz. In the center notched frequency, the efficiency drops to sevenp.c, indicating a smart interference suppression performance. The mutual coupling is less than and also the envelope correlation coefficient is but zero.1. The performances of the MIMO antenna when put in on a PCB with a standard size, with an USB connector and device housing, are also studied. Results show that the proposed MIMO antenna could be a sensible candidate for moveable UWB applications.

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