Bowtie antennas give multifunction capability in modern
wireless communication systems. The bow-tie antennas in this research work are
used to design multiband antennas using different substrates. Bow tie designs
are suitable for diverse multiband applications. We discuss design using
dielectric substrates FR4, Arlon 217, Rogers and RT Duroid 6002.The antenna is designed at an operating frequency
of 10GHz.With Arlon Cuclad 217 substrate multiband frequencies are 3.5GHz,7.0GHz,10.5
GHz, with FR4 substrate 11.2 GHz and with RTDuroid 6002 multibands are obtained
at 1.8GHz,4.0GHz,6.0GHz 7.75GHz ,9.5GHz and 11.5 GHz and 13.5 GHz. Specific
objectives of this research is comparative analysis of Bowtie Antenna by using
various substrates and by changing operating frequency. The basic bowtie
antenna is modified using a coplanar waveguide feed (CPW). The antenna
behaviour is also studied as cognitive antenna by inserting an inductors of two
different shapes zigzag and rectangular shapes between the bows of the antenna.
With both the inductors inserted between the bow antenna all parameters
obtained are same but radiation pattern and polar plots are different. The
antenna operating frequency also switched from 10 GHz to 25GHz with the rectangular shape inductor. Thus, using
a simple inductor gives frequency switching from 10 GHz to 25 GHz and with a
switch in gain. Moreover, the inductor shape makes frequency switch of
multibands 9.3 - 10.30 GHz to 11.35 GHz with also a gain switch from 4.99 to
6.9 GHz. Thus, these antennas makes them suitable to increase network links.
Author(s) Details
V. Bisht
Department of ECE, B. Tech, AIACTR, N., Ambedkar Institute
of Advanced Communication Technologies and Research, Delhi, India.
M. Khulbe
Department of ECE, Netaji Subhash University of Technology
(East campus), (Formerly AIACTR), N., Delhi 96, India.
Please see the link:- https://doi.org/10.9734/bpi/strufp/v8/800
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