Design and analysis of coupled-resonator reconfigurable antenna

Abstract In this paper, a coupled resonator with the microstrip patch antenna is proposed as a frequency reconfigurable antenna. The ground plane of the proposed microstrip patch antenna is modified with the proposed resonator structure to obtain reconfigurable characteristics. The resonator structure consists of two square split rings. The incorporation of proposed resonator structure with antenna makes it single-band antenna. The characteristics of proposed resonator structure can effectively deactivate by closing the splits of rings using switches, and hence, the dual-band characteristics of the antenna are recovered. The finite integration technique of computer simulation technology microwave studio is used throughout the investigation. The measurement of antenna performances is taken in an anechoic chamber. The measured and simulated performances of proposed reconfigurable antenna show very good agreement.

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