Sub-6 GHz Adjustable Broadband Radiation Pattern Microstrip Antenna for Wireless Communication System

Abstract

The present work demonstrates the design of a wideband 2 ×1 reconfigurable beam steering array for wireless communication systems. The designed antenna is powered by a microstrip line and consists of a two rectangular-shaped radiating elements and a rectangular planar ground. Its dimensions are as follows: 0.67λ0 × 0.53λ0 × 0.03λ0. It executes three reconfigurable operating states by turning on and off two PIN diodes to change the direction of the main beam, as well as a beam tilt ranging from (±30 • ) to (±38 • ). A progressive analysis in order to enhance the antenna characteristic performances is furnished. The proposed reconfigurable antenna bandwidth is 18.18% (simulated), 18.84% (theoretical), and 19.42% (measured). The presented antenna has a maximum gain of 8.62 dB (simulated) and 8.45 dB (measured), and a higher efficiency ratio of 80% to 86% over the operating band (5 GHz-6 GHz). The designed antenna is fabricated using a low loss Rogers RT5880 substrate of 2.2 relative permittivity. The simulated, theoretical, and measured results are presented and exhibit a good accord, including the S 11 parameter and radiation patterns. In addition to the pattern reconfiguration, the obtained results are useful in order to improve the overall gain, antenna bandwidth and efficiency.

Bandwidth Enhancement of Microstrip Antenna Using Dual Feed Line with Array 2x1 element for Radar Applications

“…Antena microstrip yang berdimensi kecil dan memiliki bandwidth lebar telah banyak dikembangkan (Wong, 2002). Bandwidth enhancement dari antena microstrip dapat menggunakan metode dual feed line , metode slit dan parasitic element (Seigi et al, 2022), metode slot (Alam, Surjati, Sari, Ningsih, et al, 2022), metode defected ground structure (Supriadi et al, 2021) (Arfianto et al, 2022), metode asymmetrically fed (Sam & Abdulla, 2020), metode planar series antenna (Alam, Surjati, Sari, Hilyawan, et al, 2022), metode penambahan antenna matching impedance (Rahmani et al, 2022). Antena microstrip yang disusun secara array, juga dapat meningkatkan performa dari antena tersebut (Dewantari et al, 2017) (Paays et al, 2023).…”