SIMPLE MICROSTRIP RECTANGULAR MONOPOLE ANTENNAS FOR NOTCHBAND OPERATION
A low profile rectangular monopole microstrip antenna is proposed for notch band operation. The antenna has a simple structure consists of a L- slot loaded rectangular radiating patch of 2.34 X 3.04 cm2 with truncated corners fabricated using low cost substrate material FR4. The proposed antenna uses top and bottom ground planes. The effect of L-slot on the patch is studied for notch band variation. The antenna operates for 31.75 % and 40.87 % of bandwidth also gives highest gain of 11.07 dB. In both the bands antenna gives ominidirectional radiation characteristics. The proposed antennas may find application in microwave communication systems operating between 7 to 16 GHz of frequencies.