Array Antenna Limitations

This letter defines a physical bound based array figure of merit that provides a tool to compare the performance of both single and multi-band array antennas with respect to return-loss, thickness of the array over the ground-plane, and scan-range. The result is based on a sum-rule result of Rozanov...

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Bibliographic Details
Published inarXiv.org
Main Authors Jonsson, B L G, Kolitsidas, C I, Hussain, N
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 18.11.2013
Subjects
Antenna arrays
Antennas
Broadband
Figure of merit
Linear polarization
Physics - Classical Physics
Unit cell
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Summary:This letter defines a physical bound based array figure of merit that provides a tool to compare the performance of both single and multi-band array antennas with respect to return-loss, thickness of the array over the ground-plane, and scan-range. The result is based on a sum-rule result of Rozanov-type for linear polarization. For single-band antennas it extends an existing limit for a given fixed scan-angle to include the whole scan-range of the array, as well as the unit-cell structure in the bound. The letter ends with an investigation of the array figure of merit for some wideband and/or wide-scan antennas with linear polarization. We find arrays with a figure of merit >0.6 that empirically defines high-performance antennas with respect to this measure.
ISSN:2331-8422
DOI:10.48550/arxiv.1307.2925