Broadband subarray microstrip antenna using a parasitic ring slot for CP-SAR application

Yohandri, Fauzan Al Haqqi, Khairi Budayawan, Kawanami Taisei and Josaphat Tetuko Sri Sumantyo

Journal of Electromagnetic Waves and Applications, 2025, vol. 39, issue 10, 1079-1091

Abstract: This work presents a 2 × 2 broadband subarray microstrip antenna incorporating a parasitic ring slot. The primary goal of this research is to optimize the impedance and axial ratio bandwidth of the circularly polarized antenna. The proposed antenna is intended to operate over the C band with a center frequency of 5.3 GHz, making it suitable for Circularly Polarized Synthetic Aperture Radar (CP-SAR) applications. The antenna consists of a two-layer substrate with a ground plan at the bottom, an elliptical radiator in the center, and a ring slot at the top. The antenna has an excellent impedance bandwidth for both simulation and measurement, which are 1.31 GHz (25.3%) and 1.59 GHz (29.3%), respectively. Furthermore, the bandwidth of the axial ratio performs adequately at 0.74 GHz (14.3%) and 0.97 GHz (18.6%) for simulation and measurement, respectively. It provides a potential alternative for the manufacturing of wideband antennas while remaining small and cost-effective. With such outstanding performance, the antenna meets the CP-SAR antenna specification.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1080/09205071.2025.2494038 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:taf:tewaxx:v:39:y:2025:i:10:p:1079-1091

Ordering information: This journal article can be ordered from
http://www.tandfonline.com/pricing/journal/tewa20

DOI: 10.1080/09205071.2025.2494038

Access Statistics for this article

Journal of Electromagnetic Waves and Applications is currently edited by Mohamad Abou El-Nasr and Pankaj Kumar Choudhury

More articles in Journal of Electromagnetic Waves and Applications from Taylor & Francis Journals
Bibliographic data for series maintained by Chris Longhurst ().