Four Elements Reconfigurable MIMO Antenna for Dual Band Applications

Vipin Choudhary; Manoj Kumar Meshram; Jan Hesselbarth

doi:10.32452/IJAMT.2022.274282

Authors

Vipin Choudhary Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
Manoj Kumar Meshram
Jan Hesselbarth the Institute of Radio Frequency Technology, University of Stuttgart, Germany

DOI:

https://doi.org/10.32452/IJAMT.2022.274282

Keywords:

Reconfigurable antennas, MIMO Antennas, Reconfigurable MIMO Antennas

Abstract

A four-element reconfigurable multiple-input-multiple-output (MIMO) antennas for dual band applications are proposed. The frequency reconfigurability of the proposed antennas is achieved by incorporation of three PIN diodes within the single element. The antenna covers multiple switchable operating bands for Worldwide Interoperability for Microwave Access (Wi-MAX)/Wireless Local Area Network (WLAN) applications (3.4-3.6GHz, 3.8-3.86GHz, 5.18-5.27GHz, 5.35-5.5GHz and 5.67-5.8GHz). The proposed MIMO antenna consists of 2x2 elements on a single FR4 substrate. The combinations of MIMO and reconfigurable antenna provide improved performance in terms of envelope correlation coefficient (ECC) and channel capacity loss (CCL) in multiple-frequency bands. The MIMO antenna system performance including the isolation, ECC, CCL, and the diversity gain (DG) are simulated and measured. High isolation (≥ 25dB) is achieved between reconfigurable MIMO antenna ports without any internal and external decoupling network. The proposed antenna has sufficient performance that makes it suitable for indoor access points (IAPs).

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Author Biographies

Vipin Choudhary, Department of Electronics Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India

Vipin Choudhary received the Master of technology degree in wireless communication, electronics from Amity University-UP in 2017 and Licentiate (doctorate) degree in the subject area of Electrical Engineering from KTH Royal Institute of Technology, Stockholm, Sweden, in 2021, respectively. His research interest include on RF and antenna measurements, non-destructive testing, radar measurements, radar imaging, microwave/radar absorbers materials, SAR as well as polarimetry measurements, RF measurement techniques and Signal processing.

Jan Hesselbarth, the Institute of Radio Frequency Technology, University of Stuttgart, Germany

Jan Hesselbarth was born in Dresden, Germany, in 1970. He received the Doctorate degree from the Swiss Federal Institute of Technology (ETH Zurich), Switzerland, in 2002. He worked as a design engineer with Huber Suhner, Herisau, Switzerland, from 2001 to 2005, and as a member of technical staff with Bell Labs, Dublin, Ireland, from 2005 to 2008. He then joined ETH Zurich as a senior researcher and lecturer. Since 2011, he has been a professor with the Institute of Radio Frequency Technology, University of Stuttgart, Germany. His research interests are in antennas and millimeter-wave circuits and packaging.

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