A shielded QMSIW ultra-compact self-diplexing antenna for WiMAX/WLAN applications

Abstract

In this contribution, novel design is presented for a very compact shielded quarter-mode substrate-integrated waveguide (S-QMSIW) based self-diplexing antenna (SDA) for WiMAX/WLAN applications. In order to achieve dual-band features, a slot is etched onto the top of the metal. Two orthogonal microstrip feed lines in the full-wave EM-simulator (HFSS) simulate the S-QMSIW resonator at two different frequencies (3.45 and 5.45 GHz). The proposed antenna pattern is extremely adaptable, allowing for simple frequency adjustments for each resonant frequency. A lumped circuit model is expected to be used to assess the antenna structure. A self-diplexing antenna based on S-QMSIW was designed, fabricated and tested to claim the proposed concept. At 3.45 and 5.45 GHz, the proposed antenna peak gains are 4.7 and 5.6 dBi, respectively. It offered port isolation better than 38 dB. The antenna front-to-back ratio was greater than 19.5 dB in each band. The proposed antenna circuit size was very compact ($0.08{\lambda }_g^2$).

Keywords:

• S-QMSIW
• SDA
• WiMAX
• WLAN
• compact

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Nrusingha Charan Pradhan

Nrusingha Charan Pradhan received the B.Tech. degree from Biju Patnaik University of Technology, India, in 2013, and the M.Tech. degree in electronics engineering from Pondicherry Central University, Puducherry, India, in 2016. He was with the Integrated Test Range, Defence Research and Development Organisation, Chandipur, India (ITR-DRDO) for a period of two year. He is currently a Research Scholar with the Department of Electronics and Communication Engineering, National Institute of Technology, Tiruchirappalli, India. He has 18 technical papers. His current research interests include microwave integrated circuits, Substrate-Integrated Wave Guide Components for Millimeter Wave Applications. Mr. Pradhan is a Student Member of the IEEE AP Society, the MTT Society. He is a Student branch Chair of the IEEE-MTTs Society NIT, Trichy. He is an IEEEXtreme ambassador 15.0 at IEEEXtreme.

Karthikeyan Sholampettai Subramanian

Karthikeyan Sholampettai Subramanian received the Ph.D. degree from IIT Guwahati, India, in 2011. He has 13 years of educational activity and research experience in the area of RF and microwave. He was the Short-Term academic foreign visit U.K and France. He is currently Assistant Professor with the Department of Electronics and Communication Engineering, National Institute of Technology, Tiruchirappalli, India. He has authored or co-authored more than 100 scientific research papers and technical reports. His current research interests include microwave integrated circuits, biological effects of microwaves, computer-aided design of MICS, metamaterials/frequency selective surfaces (FSSs), fractal antennas, MIC antennas, metamaterial antennas, and substrate-integrated waveguides. He is a member of the IEEE, IEEE MTT-S, and IEEE AP-S. He is a Life Member of the ISTE.

Rusan Kumar Barik

Rusan Kumar Barik received the B.Tech. degree in Electronic & Communication Engineering from Biju Patnaik University of Technology, Rourkela, India in 2012, M.Tech. degree in Communication Systems Design and Ph.D. degree in Electronics Engineering from Indian Institute of Information Technology, Chennai, Tamil Nadu, India in 2015 and 2018, respectively. He joined the Department of Electronic & Communication Engineering, Christ University Bangalore, India, as an assistant professor in 2018. He is currently a Post-Doctoral Researcher with the Engineering Optimization and Modeling Center, Department of Engineering, Reykjavik University, 102 Reykjavik, Iceland. His research interests include multiband microwave passive devices, multiband antennas, and SIW components.

Qingsha S. Cheng

Qingsha S. Cheng received the B.Eng. and M.Eng. degrees from Chongqing University, Chongqing, China, in 1995 and 1998, respectively, and the Ph.D. degree from McMaster University, Hamilton, ON, Canada, in 2004. In 1998, he joined the Department of Computer Science and Technology, Peking University, Beijing, China. In 1999, he joined the Department of Electrical and Computer Engineering, McMaster University, where he worked as a postdoctoral fellow, a research associate, and a research engineer. He is currently an Assistant Professor with the Department of Electrical and Electric Engineering, Southern University of Science and Technology, Shenzhen, China. His research interests include surrogate modeling, CAD, modeling of microwave circuits, software design technology, and methodologies for microwave CAD.