Sreedevi, Menon K; Lethakumary,B; Bijumon, P V; Sebastian,M T; Mohanan, P(Microwave and Optical Technology Letters, May 5, 2005)
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Abstract:
In this paper, the advantages of using L-shaped microviij)
feed to e.tcite a rectangular dielectric resonator cuuenna (DRA) by elemanagnetic
coupling are presented. This feeding technique enhances the
hardsvidth and gain of the antenna without affecting its size. The experimental
re srdts are validated using Fidelity software based on the finitedifference
tine-domain (FDTD) method
Suma,M N; Sreedevi, Menon K; Bijumon, P V; Sebastian,M T; Mohanan, P(Microwave and Optical Technology Letters, April 20, 2005)
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Abstract:
In this paper, we present an effective excitation of a reelangular
dielectric resonator antennas (DRA) with a conductor-hacked
coplanar waveguide (CB-CPW). The radiation and resonance characteristics
are found to van,, depending on the orientation of the DR on
doe coplanar feed line. The effect of finite and infinite ground planes of
CB-CPIV on the radiation characteristics of the rectangular DRA is
studied. The orientation and position of the DR are optimized for maximum
gain and bandwidth. The optimized antenna ,geometry offers
--10.46 dBi gain and 7.5% bandwidth with low cross-polar radiation
characteristics