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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4704
Title: Analysis and Optimization of Conformal Patch Excited Wideband DRA of Several Shapes
Authors: Kumar P.
Dwari S.
Singh S.
Kumar A.
Agrawal N.K.
Kumar U.
Published in: Frequenz
Abstract: In this paper various shapes of DR antennas excited by common feed have been proposed and successfully implemented for wideband applications. Proposed structures are Hemispherical, Arrow-shaped and Triangular DRA, while common excited feed is inverted trapezoidal conformal patch. These shapes of DR offer significant optimization in several parameters such as impedance bandwidth, peak gain and bandwidth per unit volume of the antenna. By using inverted trapezoidal patch feed mechanism an impedance bandwidth (VSWR<2) of about 63 % for hemispherical shape, 66 % for arrow shape, and 72 % for triangular shape DRA has been achieved with maximum bandwidth per unit volume. Proposed wideband DRAs i. e. triangular, hemispherical, and arrow shapes of DR antennas cover almost complete C-band (4 GHz-8 GHz) frequency spectrum of microwave. The average peak gain within the operating band for hemispherical, arrow, and triangular shape DRA are about 5, 5.4, and 5.5 dB respectively. A comparative analysis of proposed structures for various antenna parameters has been analyzed by HFSS (High-Frequency Structure Simulator) and validated by experimental results. © 2018 Walter de Gruyter GmbH, Berlin/Boston.
Citation: Frequenz(2018), 72(43987): 197-208
URI: https://doi.org/10.1515/freq-2017-0039
http://repository.iitr.ac.in/handle/123456789/4704
Issue Date: 2018
Publisher: Walter de Gruyter GmbH
Keywords: arrow
bandwidth per unit volume
conformal patch
Dielectric Resonator Antenna (DRA)
hemispherical
triangular
wideband
ISSN: 161136
Author Scopus IDs: 57206834879
13205077400
56175833100
57198890795
57202397040
57212047804
Author Affiliations: Kumar, P., Department of Electronics Engineering, Indian Institute of Technology, Indian School of Mines, Dhanbad, Jharkhand 826004, India
Dwari, S., Department of Electronics Engineering, Indian Institute of Technology, Indian School of Mines, Dhanbad, Jharkhand 826004, India
Singh, S., C-D and E/CE, Bharat Electronics Limited, Bengaluru, Karnataka 560045, India
Kumar, A., Department of Electronics and Communication, SCET, Ghaziabad, U.P. 201010, India
Agrawal, N.K., Department of Electronics and Communication, Inderprastha Engineering College, Ghaziabad, U.P. 201010, India
Kumar, U., Department of Electronics and Communication, Inderprastha Engineering College, Ghaziabad, U.P. 201010, India
Funding Details: Acknowledgment: The authors would like to acknowledge Dr. J. Kumar, Microwave Plasma Group, Institute for Plasma Research, Gandhinagar, Gujarat, India; Mr. A. Kumar, Scientist C, Antenna Div., SAMEER, Kolkata, India and Dr. S. V. Tiwari, Technion –Israel Institute of Technology, Haifa, Israel, for their support.
Corresponding Author: Singh, S.; C-D and E/CE, Bharat Electronics LimitedIndia; email: ershailendra1987@gmail.com
Appears in Collections:Journal Publications [CE]

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