EVERGREEN

Joint Journal of Novel Carbon Resource Sciences and Green Asia Strategy

ISSN:2189-0420 (Print until Mar 2020)
ISSN:2432-5953 (Online)

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Gain Enhancement of Star-Shaped Antenna using FSS as Reflector for C-Band Vehicular Communication Systems

Chiranjeevi Reddy Sereddy1, Usha Devi Yalavarthi1,*, Taraka Phani Madhav Boddapati1
1ECE, Koneru Lakshmaiah Education Foundation, India
*Author to whom correspondence should be addressed:
E-mail: usha.devi.yalavarthi.example@university.edu (UDY)
Evergreen, Vol. 12, Iss. 02, pp. 1079–1089, 2025
DOI: 10.5109/7363496
Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International
Received: November 30, 2024 | Revised: April 19, 2025 | Accepted: May 26, 2025 | Published: June 2025
Abstract
This paper proposes a Frequency Selective Surface (FSS) reflector for C-band vehicle communications integrated with a star-shaped microstrip antenna. The proposed FSS with a star-shaped radiating element enhances gain and directivity that is crucial for vehicle communications. FSS unit cell consists of periodic arrangement of square patches and nested slots. 6 x 6 array FSS reflector is placed beneath a star-shaped single element antenna and its performance is analyzed especially at 5.9GHz and 7.3GHz. It achieved an operating band from 3.35-8.34GHz for S11<-10dB with FSS. Gain improved from 3.3dB to 9.6dB at 5.9GHz and from 3.8dB to 10.0dB at 7.3GHz. Other radiation properties and radiation efficiency are investigated at frequencies 5.9GHz and 7.3GHz. For validation of proposed FSS and star-shaped antenna for vehicle communications, results are analyzed by placing the proposed models on vehicle body.
Keywords
Conformal Antenna ; Gain Enhancement ; Reflector ; Star-shaped Antenna ; Vehicular Communications
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