Wideband Reconfigurable Antenna with Beams Switching for Wireless Systems Applications

Rahmani, Faouzi; Touhami, Naima Amar; Kchairi, Abdelmounaim Belbachir; Taher, Nihade

doi:10.3390/proceedings2020063036

Cited by 3 publications

(2 citation statements)

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“…e novelty of the proposed design, compared to all our published works, is mainly the ability to improve the antenna performance such as gain, bandwidth, and efficiency [20][21][22][23]. A circular planar antenna with reconfigurable radiation pattern using parasitic patches was proposed in our previous study [20], but this kind of antenna was not be able to cover the whole azimuth plane.…”

Section: Introductionmentioning

confidence: 99%

“…e antenna in [21] has only a bandwidth of 4.7% and a gain of 8.22 dB for four pattern states. In addition, a wideband reconfigurable antenna with beams switching has been proposed in [22], and it has a bandwidth of 26.75%, while the gain is less than 6 dB. A new reconfigurable antenna was proposed in [23] using eight hexagon-shaped radiation cells; the antenna has a bandwidth of 6.2% and gains of 8.46 dB.…”

Section: Introductionmentioning

confidence: 99%

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Pattern Reconfigurable Antenna for VANET, Wi-Fi, and WiMAX Wireless Communication Systems

Rahmani

Naima

Abdelmounaim

et al. 2021

International Journal of Antennas and Propagation

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This work presents the design and analysis of a beam switching antenna for VANET, Wi-Fi, and WiMAX wireless communication systems. The proposed reconfigurable antenna is powered by a coaxial cable and consists of a circular patch, six fish-shaped radiating elements, and a circular planar ground. The antenna was constructed on a Rogers RT5880 substrate. Its dimensions are as follows: 0.81λ0 × 0.81λ0 × 0.03λ0. It performs six reconfigurable operating states, at the same frequency, by controlling the activation and deactivation of six PIN diodes to change the beam’s direction. A theoretical equivalent circuit model of the antenna is extracted. A progressive analysis of improving the antenna characteristic performances is provided. The bandwidth of the proposed antenna is 9.07% (measured), 9.62% (simulated), and 9.31% (theoretical). The designed antenna has a maximum gain of 9.57 dB for all pattern states and a superior efficiency ratio from 85% to 95% over the operating range (5.54 GHz–6.10 GHz). The proposed reconfigurable antenna is fabricated. Measured, simulated, and theoretical results are given and show good agreement, including reflection coefficient (S11) and radiation patterns.

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