Gain enhancement of antenna using tuned complementary FSS for wireless communication

Anand, Yukti; Nath, Vandana

doi:10.1080/00207217.2024.2354069

International Journal of Electronics

2024

DOI: 10.1080/00207217.2024.2354069

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Gain enhancement of antenna using tuned complementary FSS for wireless communication

Yukti Anand,

Vandana Nath

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2024

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Cited by 2 publications

References 26 publications

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Compact metasurface antenna for Sub-6 GHz applications with isolated n77/n78 bands using CSRR

Varshney,

Kumar,

Gençoğlan

et al. 2024

Phys. Scr.

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A compact (0.35 λ0× 0.35 λ0 where λ0 is free space wavelength at the lower resonance frequency 3.50 GHz) bio-inspired tulip flower-shaped antenna (TFSA) is proposed. A double negative (DNG) metamaterial complementary split ring resonator (CSRR) is introduced near the feed in the hybrid triangular-circular patch which inserts a notch-band (4.20-4.38 GHz) in the wide bandwidth (3.15-7.05 GHz) and makes the antenna response dual-band. Consequently, this results in in-band interference reduction in 5G-Sub-6 GHz applications. A slotted FSS is placed at a distance of 28.507 mm beneath the monopole-reduced ground of the antenna to enhance the reduced gain from 4.39 dBi to 7.22 dBi. A further gain is improved to 12.84 dBi by placing a full copper surface (0.35 λ0× 0.35 λ0) as the reflector layer is placed below FSS at 1.6 mm. Finally, prototyped TFSA with FSS and reflector model achieve a dual bands reflection coefficient response (3.15-4.20 GHz): n77/n78, and (4.38-7.03 GHz): n46/n47/n96/n102/n79. The antenna reflection coefficient is tested using Keysight 14 GHz FieldFox Microwave Analyzer N9916A, and radiation patterns in the E-plane and H-plane are measured using an 18 GHz anechoic chamber. The comparison of simulated results with measured results is found an excellent match in bandwidth and with shapes of gain radiation patterns. The reflector and FSS jointly make the radiation pattern strong in the E-plane above the TFSA radiator. The antenna is well suited for n77/n78 (3.30-4.20 GHz), n79(4.40-4.99 GHz), n46 (5150-5925MHz), n47 (5855 – 5925MHz), n96/n102 (5925-6425MHz), 5.8 GHz HiperLAN, WiMAX 3.5GHz applications. An electrical equivalent circuit model of the proposed TFSA antenna is presented and validated using ADS software.

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Compact metasurface antenna for Sub-6 GHz applications with isolated n77/n78 bands using CSRR

Varshney,

Kumar,

Gençoğlan

et al. 2024

Phys. Scr.

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High-Gain Multi-Band Koch Fractal FSS Antenna for Sub-6 GHz Applications

Varshney,

Gençoğlan

2024

Applied Sciences

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This study introduces a novel antenna based on the binary operation of a modified circular patch in conjunction with the Koch fractal. The antenna is intended for applications in the sub-6 GHz band, partial C-band, and X-band. The low-cost antenna is fabricated on a 1.6-mm-thick FR-4 substrate. A frequency-selective surface (FSS) is used to overcome the decreased values of the gain and bandwidth due to the fractal operations. The introduced split ring resonator (SRR) and the antenna substrate dimension reduction reduce the bandwidth and antenna gain. The air gap between the FSS and the antenna not only enhances the antenna gain but also controls the frequency tuning at the design frequency. The antenna size is miniaturized to 36.67%. A monopole antenna ground loaded with an SRR results in improved closest tuning (3.44 GHz) near the design frequency. The antenna achieves a peak gain of 9.37 dBi in this band. The FSS-based antenna results in a 4.65 dBi improvement in the gain value with the FSS. The measured and simulated plots exhibit an excellent match with each other in all three frequency bands at 2.96–4.72 GHz. These bands cover Wi-MAX (3.5 GHz), sub-6 GHz n77 (3300–3800 MHz), n78 (3300–4200 MHz), and approximately n79 (4400–4990 MHz), in addition to C-band applications.

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Gain enhancement of antenna using tuned complementary FSS for wireless communication

Cited by 2 publications

References 26 publications

Compact metasurface antenna for Sub-6 GHz applications with isolated n77/n78 bands using CSRR

Compact metasurface antenna for Sub-6 GHz applications with isolated n77/n78 bands using CSRR

High-Gain Multi-Band Koch Fractal FSS Antenna for Sub-6 GHz Applications

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