Abstract:
A new low profile and broadband monopolar patch
antenna is proposed. Previously, long rectangular patch antennas
were proposed that had a compact structure and high gain, but
these antennas were designed for broadside radiation. There are
some patch antennas that achieve wide bandwidth by employing
a thicker substrate. However, its profile may not be low enough
for some cases that cover a very low profile space. We propose a
low profile patch antenna with wide bandwidth, high gain and
monopole like radiation pattern. The proposed antenna has a
bandwidth of 9.4% and gain of 7 dBi with monopole like
radiation pattern for an infinite ground plane. While for a finite
ground plane bandwidth of 12.3% and gain of 5 dBi is obtained.
Keywords- Excitation mode; low profile; monopolar patch
antenna; coplanar waveguide fed (CPW); omnidirectional; Method
of Moments (MoM).
