Fish-Tail Structured Fractal Monopole Printed Antenna with Dual Broadband Characteristics for Sub–6GHz 5G and X–Band Radar Applications

Fractal and Fractional, Journal Year: 2025, Volume and Issue: 9(1), P. 29 - 29

Published: Jan. 7, 2025

This article presents a printed antenna, designed with fractal-shaped patch fish-tail structured outer edges, tapered feedline, and rectangular notch-based defected partial ground structure (DPGS). The presented design has been on FR-4 substrate, which dielectric constant of 4.4 loss tangent 0.035. overall dimension the proposed antenna is 24 × 40 1.6 mm3. fractal achieved dual broad-band functionality by maintaining compact size radiator. radiator can operate at three distinct resonant frequencies (3.22, 7.64, 9.41 GHz), covering two frequency bands, extending from 2.5 to 4.2 GHz 7 9.8 GHz. A thorough parametric analysis carried out using CST Studio suite 2019 licensed version achieve better performance in terms S11 (dB), radiation efficiency, gain over operating range. bands fall within S, C, X support sub-6GHz 5G Radar applications microwave

Language: Английский

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Circular Fractal Array Antenna for C and S-Band Applications

Advances in wireless technologies and telecommunication book series, Journal Year: 2025, Volume and Issue: unknown, P. 291 - 316

Published: Feb. 7, 2025

In this article, a circular fractal array antenna is proposed for C-band and S-band applications. The uses geometry to achieve high gain across the S C bands frequency spectrum. fabricated using an FR-4 substrate tested in anechoic chamber. design holds potential multi-functional wireless systems band measurement results reveal that designed has two resonant frequencies at 3.5 GHz 5.8 of around 3.1dB noted. size 28mm×28mm×1.6mm.

Language: Английский

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Antenna Miniaturization and Application In-band Interference Reduction using Dipole Array Mirror Reflector FSS for Sub 6GHz Applications

Physica Scripta, Journal Year: 2025, Volume and Issue: 100(3), P. 035517 - 035517

Published: Jan. 31, 2025

Abstract This work contributes a compact FSS antenna novel dual-band miniaturized planar for 5G Sub 6 GHz implementations and its design considered the challenge of designing an with reduced dimensions, which in turn is expected to be more cost-effective produce exhibit lower interferences compared existing market solutions. The low-loss double-layered rectangular microstrip consists dipole strip array mirror reflector frequency selective surface (FSS) layer beneath ground at optimized gap that makes multi-layered improves directional radiation characteristics. antennas are based on same principle Fabry–Perot cavity interference achieve ultra-wideband (UWB) bandwidth larger substrate size. Therefore, they have in-band applications issues 5G. These remedies by reduction UWB size miniaturization trade-off. A 74.11% achieved 47.6% –10 dB comparison base 49 × mm 2 . introduced notch-band (5.63–5.85 GHz) bifurcate bandwidth. notch band works as boundary between extra-applications bands (5.85–8.62 (1.70–5.63 eliminates interferences. overall volume 3D controlled optimizing two substrates gap. parametric study modified dimensions has been conducted, simulation results were validated through experimental measurements. Since covers almost FR1 (1.0–6.0 range, therefore, it most appropriate candidate all including main n77 (3.3–4.2 GHz), n78 (3.3–3.8 n79 (4.4–5.0 Global System Mobile Communication, Personal Communication Services (PCS), Wi-Fi/WLAN/Bluetooth, Wi-MAX (3.5 HiperLAN (5.8 C-band (5.85–8.0 Lower 6G (7.125–8.40 applications.

Language: Английский

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Design of a Miniaturized and Polarization-Independent Frequency-Selective Surface for Targeted EMI Shielding

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(8), P. 4534 - 4534

Published: April 20, 2025

In this article, a miniaturized frequency-selective surface (FSS)-based electromagnetic shield is investigated for EMI mitigation in the X-band. The FSS comprises convoluted conducting loop designed over an FR-4 substrate. It operates at 10 GHz X-band frequency and offers effective shielding of least 33 dB. reveals rejection bandwidths 26% TE TM wave modes normal incidence. Moreover, it accomplishes polarization-insensitive angularly stable spectral responses owing to its structural symmetry compact size. addition, equivalent circuit model (ECM) finite prototype are developed verify EM simulations. A comparison results indicates that wide angular stability excellent performance, which makes suitable candidate applications requiring targeted mitigation.

Language: Английский

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Bio-Inspired Spider-Shaped Antenna with Frequency and Gain Reconfigurability for 5G and Emerging 6G Bands

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

A low-loss compact spider-shaped frequency reconfigurable antenna (SSFRA) is fabricated, measured, and investigated for sub-6 GHz, microwave S-band, C-band, new 6G spectrum (7.1–8.4 GHz) applications. single switching PIN diode BAR64-02V used to make the flexible between S-band X-band operations. The not only provides reconfigurability but also controls/enhances gain of antenna, when it in their ON state. When no connected achieves a 4.64 dBi at 3.58GHz enhances 9.03 its OFF state, upper band bandwidth from 1.43 GHz 2.86 GHz. reflection coefficients are measured using analyzer N9916A anechoic chambers they found excellent agreements with simulated results. Antenna 43.25% size miniaturization comparison conventional circular patch designed 3.50 same FR-4 substrate. feature making suitable S-band: n66 (2110–2200 MHz), n256 (2170–2200); Sub-6 GHz/C-band: n48(3550-3700MHz), n77(2.3–4.2 GHz), n78(3.3–3.8 n79(4.4-5.0 HiperLAN (5.8 Wi-Fi 5/6 (5 GHz/6 GHz); (USA 7.125 8.40

Language: Английский

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