NDLI: Broadband conical helix antennas

Content Provider	IEEE Xplore Digital Library
Author	Barsky, H.
Copyright Year	1966
Description	Author affiliation: American Electronic Laboratories, Philadelphia, PA, USA (Barsky, H.)
Abstract	The extended need for circularly polarized antennas has increased with the growing demands of telemetering, countermeasures, and communications in the aircraft and guided missile field. The inadvertent cross polarization which occurs from linearly polarized sources as a result of reflection has also imposed such a need in the field of satellite tracking. The desirable antenna characteristics for these particular applications are: (a) Constant beamwidth in both planes (b) Low axial ratio (c) Low beamtilt (d) Optimum match to a standard 50 ohm line Coupled with these requirements is the all important one of maximum attainable bandwidth to reduce the number of structures required to cover the assigned frequency spectrum. Circularly polarized antennas, in the past, have been restricted to crossed dipoles fed in quadrature or cylindrical helixes mounted on ground planes. The maximum attainable bandwidth of these antennas, being extremely frequency sensitive, is 2:1 or less. The conical helix was suggested by Dr. Kraus of Ohio State University some time ago and more recently by J. S. Chatterjee of the University of Calcutta as reported in the Journal of Applied Physics.
Starting Page	138
Ending Page	146
File Size	516901
Page Count	9
File Format	PDF
DOI	10.1109/IRECON.1959.1150789
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1966-03-21
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polarization Missiles Helical antennas Satellites Dipole antennas Bandwidth Frequency Broadband antennas Optical reflection Aircraft
Content Type	Text
Resource Type	Article

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