Micro-strip Feed Reconfigurable Antenna for Wideband Applications

摘要

In this paper, a super wideband (SWB) antenna with a bandwidth of 37 GHz (3-40 GHz) with reconfigurable notch band characteristics are presented. The antenna is able to switch from super wide band (SWB), SWB with a notch in the S-band and SWB with a notch in the C-band. This is achieved by incorporating slot and square shaped split ring resonator (SRR) structures which are used to incorporate filtering function to the antenna. The behaviour of the antenna can be reconfigured by activating/deactivating the slot and SRR structure by using pho-toconductive switches. If both the slot and SRR structure are disconnected from the patch the antenna provides super wideband characteristics with a bandwidth of 3-40 GHz. By activating the slot in the patch structure the antenna produces a notch in the C-band with a bandwidth of 200 MHz in the SWB range. By connecting the SRR structure to the patch, the antenna produces a notch in the S-band with a bandwidth of 700 MHz in the SWB range.