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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/7941
Title: Design and characterization of an efficient multi-layered circularly polarized microstrip antenna
Authors: Prajapati P.R.
Patnaik, Amalendu
Kartikeyan, Machavaram Venkata
Published in: International Journal of Microwave and Wireless Technologies
Abstract: A novel asymmetric + shaped fractal slotted circularly polarized microstrip antenna with a Yagi-Uda structure is proposed. Four asymmetric plus shape slots are embedded symmetrically in the center of all four quadrants of a square patch. To suppress undesirable higher modes, dumbbell-shaped defected ground structure (DGS) is introduced at the ground layer of the antenna. We introduce a method to compensate the reduction in gain occurring due to the presence of DGS, without changing in the overall size of the antenna. A 3 dB axial ratio bandwidth of 4 MHz at center frequency of 862 MHz, 10 dB impedance bandwidth of 13.20 MHz and a gain of 4.25 dB is achieved with the proposed antenna. A laboratory prototype of the proposed antenna is made to cross-verify the simulation results. Very good agreements between the two are obtained. The proposed antenna may prove useful for International Mobile Telecommunication application for designing high-gain arrays. © Cambridge University Press and the European Microwave Association 2015.
Citation: International Journal of Microwave and Wireless Technologies (2016), 8(7): 1101-1109
URI: https://doi.org/10.1017/S1759078715000549
http://repository.iitr.ac.in/handle/123456789/7941
Issue Date: 2016
Publisher: Cambridge University Press
Keywords: Active array antennas and components
Power amplifiers and linearizers
ISSN: 17590787
Author Scopus IDs: 54403556900
7102813204
6603631347
Author Affiliations: Prajapati, P.R., Millimeter and THz Wave Laboratory, Department of Electronics and Communication Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
Patnaik, A., Millimeter and THz Wave Laboratory, Department of Electronics and Communication Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
Kartikeyan, M.V., Millimeter and THz Wave Laboratory, Department of Electronics and Communication Engineering, Indian Institute of Technology, Roorkee, Roorkee, 247667, India
Corresponding Author: Prajapati, P.R.; Millimeter and THz Wave Laboratory, Department of Electronics and Communication Engineering, Indian Institute of Technology, RoorkeeIndia; email: pravinprajapati05@gmail.com
Appears in Collections:Journal Publications [ECE]

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