Multiband Slotted Microstrip Patch Antenna with Conducting Strips

The objective of the paper is to design an antenna with multiple resonant frequencies. The proposed antenna resonates at 12 different frequencies with a centre frequency at 5.3GHz. Microstrip patch antenna with conducting stips is used to achieved this purpose. Microwave substrate of size 30mm×30mm having a dielectric constant of 4.4 is used to design the antenna. The desired frequencies are obtained by cutting slots in the patch and impedance matching is done by providing defective ground. The multiband antenna is designed using high frequency structural simulator (HFSS) software with return loss of about -14.34dB and excellent gain of 20.51dB at 5.3GHz.