Printed Hexagonal Antenna with Dual Reconfigurable Wide Rejected Bands

A printed hexagonal antenna with double reconfigurable notched bands was presented and performed for modern wireless communication systems. The dismissed bands were obtained by etching a complementary split ring resonator (CSRR) on the original antenna layout. By placing two varactor diodes on the resonator, the discarded bands become easily controllable and tunable by varying the DC voltage of the diodes. Two wide continuous tuning ranges of 0.5 GHz and 1.1 GHz were achieved. The simulated and measured results show a good agreement.