DESIGN AND ANALYSIS OF A NOVEL OPEN ENDED T-SHAPED SLOT LOADED COMPACT MULTIFREQUENCY MICROSTRIP PATCH ANTENNA

This article is aimed at proposing a single layer, single feed, compact microstrip patch antenna for multifrequency operation. An open ended T-shaped slot is introduced at the right-side radiating edge of the patch to reduce the size of the antenna and also to obtain multiple resonant frequencies. The measured result shows that the size of the antenna has been reduced by 61% with an increased frequency ratio (the ratio of second or higher resonant frequency to the first resonant frequency).The proposed antenna is designed and fabricated for operating at 3.6, 5.2, 6.1, and 7.3 GHz. Good agreement is achieved between the simulated and measured results. (c) 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:316-322, 2014