Design and Analysis of a Broadband Low Profile Monopolar Patch Antenna with Defected Ground Structure (DGS)
DOI:
https://doi.org/10.18486/ijcsnt/4.1.048Keywords:
Excitation Modes, Low Profile, Monopolar Patch Antenna, Coplanar Waveguide Fed (CPW), OmnidirectionalAbstract
Patch antennas have gained popularity in present scenario of technological advances. In this paper a new design of low profile and broadband monopolar patch antenna has been proposed. The existing design of long rectangular patch antennas have been designed with a compact structure and high gain, but do not have the required monopolar radiation pattern. On the other hand there have been some patches designed to have wide bandwidth by employing thick substrates. However, the profile of such antennas may be too high for certain applications of employed frequency range. The proposed low profile patch antenna is with wide bandwidth, high gain and monopole like radiation pattern, which has a bandwidth of 9.4% and gain of 7 dBi with monopole like radiation pattern for an infinite ground plane. By the use of Defected Ground Structure (DGS) bandwidth of 15.3% and gain of 5 dBi is obtained at a low profile of 0.027λ0.
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