NDLI: A survey of atl-compatible radiometer antennas

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A survey of atl-compatible radiometer antennas

Content Provider	NASA Technical Reports Server (NTRS)
Author	Love, A. W.
Copyright Year	1975
Description	A survey was made of antennas suitable for remote sensing of the earth's surface, in particular the world ocean, by means of microwave radiometers operating in the 1 to 26 GHz frequency region and carried on board the shuttle-launched advanced technology laboratory. Array antennas are found to be unattractive and unsuited to the task. Reflectors, including Cassegrain and offset types, as well as horn-reflectors are possible candidates but all have shortcomings which impair the accuracy of measurement. Horns of the corrugated type have excellent electrical characteristics. Although they are physically very large and will require development of suitable deployment mechanisms, they appear to be valid candidates for the task. The evolution of the periscope antenna is outlined, and it is shown to possess nearly ideal electrical characteristics for the intended application. Its only shortcoming is that the feed horn creates aperture blocking; there is no blocking due to struts or any other source. The periscope antenna is recommended for ATL radiometry.
File Size	1439208
Page Count	50
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750024246
Archival Resource Key	ark:/13960/t5q86371k
Language	English
Publisher Date	1975-08-01
Access Restriction	Open
Subject Keyword	Electronics And Electrical Engineering Microwave Antennas Radiometers Remote Sensors Horn Antennas Antenna Design Space Shuttles Performance Prediction Cassegrain Antennas Space Laboratories Antenna Arrays Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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