A compact triple band notched UWB antenna: SRR and feed miniaturization

In this paper a compact and low cost design of triple band notched ultrawideband circular microstrip patch antenna is presented. The presented design is loaded with Split Ring Resonator (SRR) and S-shaped slot in microstrip feed line. SRR slot and S-shaped slot are used to produce band notched characteristics for WiMAX band (3.30-3.60 GHz) and WLAN band (5.10-5.80 GHz) respectively. The downlink frequency band (7.25-7.75 GHz) of X-band for satellite communication is notched using another SRR as electromagnetic coupling element near microstrip feed line which produces band stop characteristics. Measured results of fabricated antenna prototype are compared with simulated results and found in correspondence. The vswr and vector current plots evidence the suppression of the desired frequency bands.