Dual and triple band microstrip feed antennas using U slot technique for GSM and WLAN

Abstract

We propose dual-band and triple- band rectangular patch antennas with microstrip feed. The U-slots technique is used to design dual-band and triple- band antennas .The presence of U- slot is in the patch introduces a notch into the same matching band, resulting in a dual band antenna . If another U-slot is etched on the same patch it results into a triple-band antenna. In this paper the U slot method is utilized to achieve dual and triple band rectangular patches with microstrip feed for WLAN and GSM applications. We also demonstrate the effect of changing the size of the ground plane on the return loss of an antenna.
DOI: 10.17762/ijritcc2321-8169.1505116