volume | PIER Journals

Abstract

This paper presents the design, simulation, and experimental validation of a 1-bit reconfigurable reflectarray. Each unit cell is equipped with a single PIN diode, enabling binary phase control (0˚ and 180˚) for dynamic beam steering. The reflectarray employs a compact and cost-effective architecture, with digitally reconfigurable elements that allow real-time control of the reflected wavefront. The integration of PIN diodes ensures fast switching and low power consumption while maintaining good reflection efficiency and phase performance. Without limiting the applicability of the method, a reflectarray antenna consisting of 9×9 element array operating at 5.8 GHz was designed. Full-wave electromagnetic simulations and measurements demonstrate beam steering capability up to ±15˚, with minimal gain degradation and acceptable side-lobe levels. The proposed reflectarray design is a promising solution for low-complexity, reconfigurable antenna systems in applications such as wireless communications, radar, and IoT systems operating in the 5.8 GHz ISM band.

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Dr. Juwanto

Dr. Said Attamimi

Dr. Umaisaroh

Dr. Mudrik Alaydrus