FSS Integrated High Gain Broadband Antenna

Authors Tapas Tewary1, Smarajit Maity2, Arindum Mukherjee3, Avisankar Roy4, Sunandan Bhunia5

1Department of ECE, Academy of Technology, Hooghly, West Bengal, India

2Department of AEIE, Academy of Technology, Hooghly, West Bengal, India

3Department of ECE, Central Institute of Technology, Kokrajhar, Assam, India

4Department of ECE, Haldia Institute of Technology, Haldia, West Bengal, India

5Department of ECE, Central Institute of Technology, Kokrajhar, Assam, India

Е-mail s.bhunia@cit.ac.in
Issue Volume 15, Year 2023, Number 3
Dates Received 20 May 2023; revised manuscript received 14 June 2023; published online 30 June 2023
Citation Tapas Tewary, Smarajit Maity, Arindum Mukherjee, et al., J. Nano- Electron. Phys. 15 No 3, 03015 (2023)
DOI https://doi.org/10.21272/jnep.15(3).03015
PACS Number(s) 83.40.Ва
Keywords Broadband, Hybrid (2) , FSS (11) , High gain (2) .

This research work represents hybrid shape microstrip patch broadband antenna for wireless communication application. This hybrid shaped antenna exhibits broadband characteristics (2.27 GHz – 5.55 GHz) with 84 % fractional bandwidth and 3.96 dBi peak gain at 3.93 GHz. An elliptical shaped reference patch is loaded with another elliptical shaped slot to design the final patch of the proposed antenna. Full rectangular ground plane is first reduced along the width and two rectangular slots are loaded in proper position to design the ground plane of the presented antenna. The antenna resonates at 2.6 GHz, 3.4 GHz and 5.15 GHz. So the antenna can be suitably used for Wi-Fi (2.4 GHz, 5 GHz), WiMAX band (3.4), Bluetooth (2.4 GHz) applications and other short range communication. Further gain improvement is achieved by incorporating 6 x 6 FSS (Frequency Selective Surface) structure with the antenna at optimal position without hampering broadband characteristics. Maximum gain enhancement of 5.1 dBi at 2.6 GHz and peak gain of 7.3 dBi at 2.6 GHz are achieved for composite structure of the FSS and antenna. Physical size of only antenna is 30 mm x 40 mm x 1.6 mm and FSS integrated antenna's overall dimension is 96 mm x 96 mm x 40 mm. Electrical size of only antenna is 0.227λ x 0.3λ x 0.012λ and overall electrical dimension Proposed antenna is 0.67λ x 0.67λ x 0.28λ. Proposed antenna, unit cell FSS and composite structure are constructed using FR-4 substrate (1.6 mm thick, loss tangent ~ 0.02, dielectric constant ~ 4.4) and simulated by CST software. FSS integrated antenna can be utilized for long range communication.

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