NDLI: Design of a shaped omni directional circular waveguide antenna

Content Provider	IEEE Xplore Digital Library
Author	Verma, P.K. Kumar, R. Singh, M.
Copyright Year	2009
Description	Author affiliation: Defence Electronics Applications Laboratory, Dehradun, India (Verma, P.K.; Kumar, R.; Singh, M.)
Abstract	This paper describes the design, simulation and optimization of a shaped omni-directional circular waveguide antenna at 38 GHz. The proposed antenna consists of a rectangular waveguide, rectangular to circular transition, circular waveguide, metallic cone and a dielectric holder. The designed antenna has been simulated on ANSOFT HFSS EM Simulator using proper boundary conditions. Circular waveguide is excited by TM01 mode to properly generate the required pattern. The radiation pattern of circular waveguide has been modified using metallic cone. The antenna has omni pattern in azimuth plane and −10 to +45 degree coverage in elevation plane. The proposed antenna has the advantage to be robust, low cost and easy to fabricate being in waveguide configurations. Simulated VSWR less than 1.4 has been achieved for frequency range 37–40 GHz. The Omni gain of antenna is greater than 0 dBi over the frequency band.
Starting Page	1
Ending Page	3
File Size	5490234
Page Count	3
File Format	PDF
ISBN	9781424448180
DOI	10.1109/AEMC.2009.5430672
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-14
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Waveguide transitions Azimuth Rectangular waveguides Directive antennas Frequency Boundary conditions Robustness Dielectrics Design optimization Antenna radiation patterns
Content Type	Text
Resource Type	Article

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