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A modified dumbbell-shaped highly efficient broadband multifunctional polarizer for X and Ku band applications

Published online by Cambridge University Press:  16 October 2024

Ashish Gupta Open the ORCID record for Ashish Gupta [Opens in a new window] ,
Raghvenda Kumar Singh Open the ORCID record for Raghvenda Kumar Singh [Opens in a new window] ,
Akshat Sinha ,
Swarnim Pathak  and
Preet Singh Sodhi
Ashish Gupta*
Affiliation:
Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
Raghvenda Kumar Singh
Affiliation:
Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
Akshat Sinha
Affiliation:
Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
Swarnim Pathak
Affiliation:
Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
Preet Singh Sodhi
Affiliation:
Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
*
Corresponding author: Ashish Gupta; Email: ashish.gupta@jiit.ac.in
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Abstract

A novel metasurface offering polarization conversion characteristic in five bands is studied and developed in this paper. To provide the anisotropic feature to the structure, a diagonally placed tapered rod is combined with two semicircular stubs. Due to the controlling ability to convert horizontal to vertical polarization and vice versa, and linear to circular polarization (CP), it serves as a multifunctional polarization converter. Simulation results suggest that the proposed polarizer functions as cross polarizer over 4.74−5.12 and 9.12−13.48 GHz. Additionally, it exhibits a distinct type of rotational sense across 4.24−4.68, 5.24−8.64, and 13.72–15.14 GHz in its linear to CP conversion behavior. The axial ratio of the polarizer is well below 3 dB throughout overall CP bands due to the minimum tolerance level in reflection phases with respect to acceptable limits. Moreover, it is noticed that the sense of CP is left-handed in the first band while right-handed in the remaining two bands. Thus, the suggested polarizer has potential to be integrated with antennas for satellite, defense, industry applications for getting the desired type of polarization in the distinguished bands.

Keywords

axial ratio (AR)cross polarization conversion (CPC)linear polarization to circular polarization conversion (LPCP)metasurfacepolarization converterpolarization conversion efficiency (PCE)

Information

Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 16 , Issue 9 , November 2024 , pp. 1552 - 1560
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Copyright
© The Author(s), 2024. Published by Cambridge University Press in association with The European Microwave Association.

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