Printed CPW-fed Monopole Antenna with Band-notched Characteristic

A compact rectangular monopole antenna fed by a tapered coplanar waveguide (CPW) with a band-notch function is introduced. A U-shape slot is cut in the radiating patch to obtain the band-notch function and its parameters are studied in detail. It is shown that the band-notched function can be controlled by the location of the U-shape slot and the notched band can be changed by adjusting the length and width of the slot. Experimental results show that the proposed antenna has a stop-band of 5.07 to 5.85 GHz while maintaining extremely wideband performance from 0.595 to 8.95 GHz (15:1) for VSWRles2.