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Performance analysis of TSA array with elliptical patch

Published online by Cambridge University Press:  02 December 2022

Chanchala Kumari Open the ORCID record for Chanchala Kumari [Opens in a new window]  and
Neela Chattoraj Open the ORCID record for Neela Chattoraj [Opens in a new window]
Chanchala Kumari*
Affiliation:
Department of Electronics and Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
Neela Chattoraj
Affiliation:
Department of Electronics and Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
*
Author for correspondence: Chanchala Kumari, E-mail: phdec10051.19@bitmesra.ac.in
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Abstract

A compact microstrip to substrate integrated waveguide transition feed tapered slot antenna array (1 × 4) with the elliptical patch is proposed and analyzed. The new approach is presented, employing a parasitic patch in the flared aperture to generate more radiation in the end-fire direction and improve field coupling between the arms. It boosts gain while maintaining overall size and low-frequency performance without using electrically thin dielectric substrates. To validate the designed approach, the proposed structure is fabricated and measured. The measured results show that the array provides impedance bandwidth of 40%, peak measured gain of 9.14 dBi, and radiation efficiency is 90% over the 8.5–12.5 GHz frequency band. A four-way feed network is also fabricated with the insertion loss of −6 ± 0.9 dB; the reflection coefficient is below −15 dB over the desired frequency range and only ±4° phase imbalance. The overall dimension of antenna array is 50 × 54 × 0.813 mm3 or ~1.6λ × 1.8λ × 0.027λ at 10 GHz.

Keywords

CSTMWmicrostrip power dividerparasitic patchSIWtapered slot antenna (TSA)
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 15 , Issue 7 , September 2023 , pp. 1242 - 1250
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Copyright
© The Author(s), 2022. Published by Cambridge University Press in association with the European Microwave Association

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