Design of Compact Shielded QMSIW Based Self-Diplexing Antenna for High-Isolation

Nrusingha Charan Pradhan1; Karthikeyan Sholampettai Subramanian1; Rusan Kumar Barik2; Priyanka Dalal3; Qingsha S. Cheng4

10.1109/WAMS54719.2022.9848084

2022

IEEE Wireless Antenna and Microwave Symposium (WAMS)

978-1-6654-5847-4

2022 IEEE Wireless Antenna and Microwave Symposium (WAMS)

1-4

5-8 June 2022

Rourkela, India

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

A new shielded quarter-mode substrate integrated waveguide (S-QMSIW) based self-diplexing antenna (SDA) with excellent isolations is reported in this study. A slot is etched onto the top of the metal to achieve dual-band characteristics. In the full-wave EM simulator (HFSS), two orthogonal microstrip feed lines simulate the S-QMSIW resonator at two distinct frequencies (2 GHz and 4.35 GHz). A lumped circuit model is expected to be used to analyse the antenna structure. By carefully optimizing the antenna size, a good isolation of more than 36 dB between two input ports is obtained. To prove the proposed concept, a self-diplexing antenna based on S-QMSIW is developed, fabricated, and tested. The proposed antenna peak gains at 2 GHz and 4.35 GHz are 4 dBi and 4.5 dBi, respectively. In each band, the antenna front-to-back ratio is more than 18 dB. The proposed antenna circuit is extremely compact (0.06 lambda(2)(g)). The present antenna has a simple design, improved isolation, and a compact size as compared to previous designs, which meets the growing need for RF device simplification and integration.

Compact self-diplexing shielded quarter-mode slot

Others

English

CPCI-S ; EI

National Institute of Technology Trichy seed grant[NITT/R&C/SEEDGRANT/19-20/P.09/ECE/SSK]

Engineering ; Telecommunications

Engineering, Electrical & Electronic ; Telecommunications

WOS:000861208100078

20223712724621

Antenna feeders ; Microwave antennas ; Slot antennas

Waveguides:714.3

Web of Science

1.Dept. of Electronics and Communication Engineering, National Institute of Technology, Tiruchirappalli, India
2.Dept. of Engineering Optimization and Modeling Center, Reykjavik University, Reykjavik, Iceland
3.Dept. of Electronics and Communication Engineering, GJUS & T, Hisar, India
4.Dept. of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China

Nrusingha Charan Pradhan,Karthikeyan Sholampettai Subramanian,Rusan Kumar Barik,et al. Design of Compact Shielded QMSIW Based Self-Diplexing Antenna for High-Isolation[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2022:1-4.