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A Novel Hemispherical Dielectric Resonator Antenna With Complementary Split-Ring-Shaped Slots and Resonator for Wideband and Low Cross-Polar Applications

DSpace at IIT Bombay

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Title A Novel Hemispherical Dielectric Resonator Antenna With Complementary Split-Ring-Shaped Slots and Resonator for Wideband and Low Cross-Polar Applications
 
Creator MUKHERJEE, B
PATEL, P
MUKHERJEE, J
 
Subject GROUND PLANE
PATCH
RADIATION
Bandwidth
complementary split-ring resonator (CSRR)
cross polar
gain
hemispherical dielectric resonator antenna (HDRA)
 
Description In this paper, a novel hemispherical dielectric resonator antenna (HDRA) with complementary split rings and slots is proposed and investigated. The complementary split-ring resonators (CSRRs) are etched from the ground plane, which are pierced though slots extending from the ground plane up to the HDRA. The dielectric material used is Rogers TMM10, which has a dielectric constant of epsilon(r) = 9.2. The CSRR-shaped slot on HDRA lowers down the quality factor (Q-factor) of the antenna, thus enhancing the bandwidth. Furthermore, the current distribution across the CSRR slots on the ground plane is out of phase, which results in current cancelation along the CSRR and hence reduces the cross-polar component of the radiation pattern significantly. The measured value of bandwidth of the proposed structure is 30% centered at 1.9 GHz, offering a gain of 6 dBi. The cross-polar level is more than 40 dB, which is much lower than the copolar pattern. The first two modes of the HDRA are preserved.
 
Publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
 
Date 2016-01-15T09:03:34Z
2016-01-15T09:03:34Z
2015
 
Type Article
 
Identifier IEEE ANTENNAS AND PROPAGATION MAGAZINE, 57(1)120-128
1045-9243
1558-4143
http://dx.doi.org/10.1109/MAP.2015.2397113
http://dspace.library.iitb.ac.in/jspui/handle/100/18229
 
Language en