NDLI: Microstrip reflectarray antenna for the scanscat radar application

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Microstrip reflectarray antenna for the scanscat radar application

Content Provider	NASA Technical Reports Server (NTRS)
Author	Huang, John
Copyright Year	1990
Description	This publication presents an antenna system that has been proposed as one of the candidates for the SCANSCAT (Scanned Scatterometer) radar application. It is the mechanically steered planar microstrip reflectarray. Due to its thin, lightweight structure, the antenna's mechanical rotation will impose minimum angular momentum for the spacecraft. Since no power-dividing circuitry is needed for its many radiating microstrip patches, this electrically large array antenna demonstrates excellent power efficiency. In addition, this fairly new antenna concept can provide many significant advantages over a conventional parabolic reflector. The basic formulation for the radiation fields of the microstrip reflectarray is presented. This formulation is based on the array theory augmented by the Uniform Geometrical Theory of Diffraction (UTD). A computer code for analyzing the microstrip reflectarray's performances, such as far-field patterns, efficiency, etc., is also listed in this report. It is proposed here that a breadboard unit of this microstrip reflectarray should be constructed and tested in the future to validate the calculated performance. The antenna concept presented here can also be applied in many other types of radars where a large array antenna is needed.
File Size	1531672
Page Count	48
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920020220
Archival Resource Key	ark:/13960/t6sz16k54
Language	English
Publisher Date	1990-11-15
Access Restriction	Open
Subject Keyword	Communications And Radar Radar Equipment Parabolic Reflectors Computer Programs Scatterometers Radiation Distribution Antenna Design Breadboard Models Microstrip Antennas Far Fields Geometrical Theory of Diffraction Power Efficiency Antenna Radiation Patterns Large Space Structures 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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