A circular monopole antenna with uniquely packed quad T-shaped strips for WLAN/WiMAX application

Ranjeet Kumar; Rashmi Sinha; Arvind Choubey; Santosh Kumar Mahto

doi:10.1515/freq-2022-0017

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A circular monopole antenna with uniquely packed quad T-shaped strips for WLAN/WiMAX application

Ranjeet Kumar , Rashmi Sinha , Arvind Choubey und Santosh Kumar Mahto

Veröffentlicht/Copyright: 6. Mai 2022

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Abstract

This paper presents a circular monopole antenna with uniquely packed quad T-shaped strips etched on FR4 epoxy substrate having material permittivity 4.4, loss tangent 0.02, and thickness 1.6 mm. The 3.5 GHz band is achieved through this arrangement, which has return loss less than −10 dB while maintaining VSWR <2. It provides a peak gain of 2.65 dBi at 3.5 GHz and average gain of 2.52 dBi in the entire operating frequency band. The radiation pattern is almost omnidirectional in E plane and bidirectional in H plane. The proposed antenna has a compact size of 41.25 mm × 30.55 mm. The simulated results of S11 parameters, gain, VSWR, radiation pattern, and efficiency are studied and verified with the measured results of fabricated antenna as well as its equivalent lumped circuit model. Investigation shows that the proposed antenna can be employed for WLAN/WiMAX applications efficiently.

keywords: antenna therory; microstrip antenna; return loss; VSWR; WiMAX; WLAN

Corresponding author: Ranjeet Kumar, Department of Electronics & Communication Engineering, National Institute of Technology, Jamshedpur, India, E-mail: ranjeet77kumar@gmail.com

Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-01-19

Revised: 2022-03-25

Accepted: 2022-04-21

Published Online: 2022-05-06

Published in Print: 2023-04-25

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https://doi.org/10.1515/freq-2022-0017

Schlagwörter für diesen Artikel

antenna therory; microstrip antenna; return loss; VSWR; WiMAX; WLAN