Microstrip antennas find far-reaching applications in the
current communication scenario due to their unique properties
like light weight, ease of fabrication, low production cost, low
profile, etc. But the fields of application of these antennas are
limited by their inherent disadvantage of relatively lowimpedance
BW. Bandwidth enhancement is needed in order to
fulfill the requirement of today’s communication systems.
Many bandwidth enhancement techniques have been proposed
by researchers7-15. They achieved wide bandwidth, but they
changed the antenna structure and increased complexity of the
system. In 1998, J. George proposed that the BW of a
microstrip patch antenna could be increased by loading a DR
on the patch surface [5]. In this paper, we have reported an
optimization of the height of the DR on the antenna and
effects of its dielectric constant on the antenna properties. We
studied the effects of loading the DR on feed point and making