A low cost planar near-field / far-field antenna measurement system

Yan, Bing (1997) A low cost planar near-field / far-field antenna measurement system. Masters thesis, Memorial University of Newfoundland.

[English] PDF (Migrated (PDF/A Conversion) from original format: (application/pdf)) - Accepted Version Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Download (8MB) [English] PDF - Accepted Version Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. (Original Version)

Abstract

In this thesis, a low cost planar near-field/far-field (NF/FF) antenna measurement system is designed, built and validated in Center for Cold Ocean Research Engineering (C-CORE), Memorial University of Newfoundland. The design of the system is presented in detail, a faster technique is used to speed the determination of the far-field radiation pattern. The basic theory of near-field antenna measurements is reviewed. A software package has been designed which has a user friendly interface. Details of the NF/FF transformation using fourier transform are presented. Far-field radiation patterns calculated from near-field measurements have been compared with the far-field patterns measured directly inside C-CORE's RF anechoic chamber, and reasonably accurate results are observed for a number of antennas. Based on the cost of the system ($2,000), the reasonably accurate results are quite acceptable. This NF/FF measurement system is an addition to the Memorial University electromagnetic measurement facility.

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