Feasibility of compact ranges for near-zone measurements

Feasibility of compact ranges for near-zone measurements

The purpose of this paper is to demonstrate the feasibility of using compact range reflector systems to make near-zone radiation or scattering measurements. This can be achieved by designing the compact range to provide a uniform spherical wave incident upon the antenna or scatterer under test. The...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation Vol. 35; no. 3; pp. 280 - 286
Main Authors: Rudduck, R., Ming-Cheng Liang, Burnside, W., Jiunin Yu
Format: Journal Article
Language:English
Published: New York, NY IEEE 01-03-1987
Institute of Electrical and Electronics Engineers
Subjects:
Antenna measurements
Antennas
Applied sciences
Diffraction
Exact sciences and technology
Feeds
H infinity control
Laboratories
Radar antennas
Radar measurements
Radar scattering
Radar tracking
Radiocommunications
Telecommunications
Telecommunications and information theory
Volume measurement
Reflector antenna
Near field
Measurement
Positioning
Reflector
Radiation pattern
Feeding
Antenna
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Description
Summary:The purpose of this paper is to demonstrate the feasibility of using compact range reflector systems to make near-zone radiation or scattering measurements. This can be achieved by designing the compact range to provide a uniform spherical wave incident upon the antenna or scatterer under test. The basic design technique is demonstrated using the Scientific Atlanta reflector system which has been modified by adding an elliptic rolled edge to improve the uniformity of the incident wave. The near-zone range design is validated (from around 50 ft range to the far zone) by probing the field in the measurement volume and by comparing measured backscattering patterns from a circular cylinder with those calculated by the geometrical theory of diffraction (GTD). All the advantages of a conventional far-zone compact range are now made available by our demonstrated variable-zone (adjustable continuously from 50 ft to infinity) compact range.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.1987.1144088