Metamaterial Inspired Frequency Tunable Planar Patch Antenna

摘要

In this paper, we present a metamaterial loaded frequency tunable planar patch antenna. Square shaped split ring resonator (SRR) with rotated inner ring metamaterial structure is used. Radio frequency microelectro-mechanical system (RF MEMS) switches are used to provide the frequency tunability. The inner ring of SRR is rotated about its axis by means of RF MEMS Switches. Loaded microstrip patch antenna with original SRR structure resonates at 5.52 GHz. When the inner ring of SRR is rotated by means of RF MEMS switches, the loaded antenna tuned to 5.50 GHz, 5.44 GHz and 5.42 GHz.