A Benchmark for Antenna Correlation Measurements

Multielement antennas have become a central part of most communication systems, and yet their design and evaluation remain a challenge. A key parameter is the correlation matrix, which relates the antenna patterns and the multipath propagation. The correlation governs communication metrics such as t...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2020-09, Vol.68 (9), p.6624-6635
Main Authors: Hynes, Christopher G., Vaughan, Rodney G.
Format: Article
Language:English
Subjects:
3-D-printed antenna
antenna correlation
antenna diversity
Antenna measurements
antenna radiation pattern synthesis
Antennas
Benchmark testing
Benchmarks
biconical antenna
Broadband
Communications systems
Computer simulation
Correlation
Correlation analysis
Dipole antennas
Feeds
linear antenna
multiple-input
multiple-output (MIMO) systems
optical fiber measurement applications
Propagation
wideband antenna
Wires
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Summary:Multielement antennas have become a central part of most communication systems, and yet their design and evaluation remain a challenge. A key parameter is the correlation matrix, which relates the antenna patterns and the multipath propagation. The correlation governs communication metrics such as the various capacities, error rates, and outages. Calculation of the correlation matrix requires accurate measurements of the complex far-field patterns of the antennas, and there is a need to verify that both the measurement and the calculation are accurate. An approach is presented for benchmarking the measured correlation accuracy by using a biconical antenna with a closed-form expression for its wideband correlation function. The approach is demonstrated by checking both physical and numerical experiments (simulation) against the theory. It benchmarks the accuracy of both the measurement and calculation stages for the antenna correlation in a rich isotropic multipath propagation environment.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2020.2998431