NDLI: An electromechanically scannable trough waveguide array

Content Provider	IEEE Xplore Digital Library
Author	Rotman, W. Maestri, A.
Copyright Year	1966
Description	Author affiliation: Air Force Cambridge Research Center, Air Research and Development Command, United States Air Force, H.G. Hanscom Field, Bedford, MA, USA (Rotman, W.)
Abstract	The microwave antenna described utilizes a trough waveguide array feeding a section of a parabolic cylinder. Performance of the antenna, a linear array, depends on several properties of the trough waveguide. Electromechanical scanning of the array is achieved by changing the phase velocity in the guide. To continuously vary the guide wavelength at a suitable rate, two methods are used: (1) rotation of symmetrical structures along a longitudinal axis within the trough waveguide, and (2) mechanical variation of the height of periodic structures located on the top of the center fin of the trough waveguide. Both methods were incorporated in short arrays, and the latter method was also used in a ten-foot long array. Successful operation was obtained with scan angles in excess of 20 degrees. Experimental data for the ten-foot array feeding a parabolic cylinder is presented herein.
Starting Page	67
Ending Page	83
File Size	1187452
Page Count	17
File Format	PDF
DOI	10.1109/IRECON.1960.1150886
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	Phased arrays Strips Laboratories Electromagnetic waveguides Antenna feeds Microwave antenna arrays Linear antenna arrays Research and development Periodic structures Lenses
Content Type	Text
Resource Type	Article

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