ItemArticle

Quad-band SIW antenna with micro-pocket enabled frequency-agile design for 5G/6G IoT applications

Title
Quad-band SIW antenna with micro-pocket enabled frequency-agile design for 5G/6G IoT applications
Creator
Vaishali, P.; Dash, Sounik Kiran Kumar; Barik, Rusan Kumar; Khan, Mohammad Junaid; Dewangan, Niraj Kumar
Description
A single polarized substrate integrated waveguide (SIW) cavity supported self-quadruplexing antenna, designed for 5G/6G IoT applications is proposed and prototyped. The model is backed by a rectangular substrate integrated waveguide (RSIW) cavity and features four resonating patches excited separately through four different 50? feed lines. The antenna center frequencies are obtained at 3.29GHz, 4.47GHz, 5.85GHz, and 7.07GHz. Additionally, the cavity is engineered with four sets of micro pockets beneath the patches which can be filled with different materials to offer frequency-agile response. The operating frequencies can be tuned over a wide range between 3.29GHz and 8.4GHz as per the required targets. The layout of the model is chosen meticulously to ensure all ports are co-polarized and isolation between any two is better than 32 dB. The proposed antenna design exhibits competitive performances with a compact size of 0.09 ?g, Front-To-Back-Ratio (FTBR) above 17.83 dB and peak gain of 7.6 dBi. Importantly, all ports are single polarized for the first time in their class. The performance is validated by an equivalent circuit model and prototype characterization. The proposed antenna specifications and configurations well suit for future high-end applications like IoT/5G/6G/satellite communications. The Author(s) 2026.
Source
Scientific Reports;Volume;16;Issue;1;Article No.;10774;
Date
01-01-2026
Publisher
Nature Research
Subject
5G/6G; Antenna design; IOT applications; SIW
Coverage
Vaishali P., Department of Electronics and Communication Engineering, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, 603203, India; Dash S.K.K., Department of Electronics and Communication Engineering, SRM Institute of Science and Technology, Tamil Nadu, Kattankulathur, 603203, India; Barik R.K., Department of Electronics and Communication Engineering, School of Engineering and Technology, CHRIST University, Bangalore, India; Khan M.J., Department of Electronics and Communication Engineering, SR University, Telangana, Warangal, India; Dewangan N.K., Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, India
Rights
All Open Access; Gold Open Access; Green Open Access
Relation
ISSN: 20452322;
Format
online
Language
English
Type
Article

Citation

Vaishali, P.; Dash, Sounik Kiran Kumar; Barik, Rusan Kumar; Khan, Mohammad Junaid; Dewangan, Niraj Kumar, “Quad-band SIW antenna with micro-pocket enabled frequency-agile design for 5G/6G IoT applications,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22541.

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