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arXiv · 1307.2925

Array Antenna Limitations

B. L. G. Jonsson·C. I. Kolitsidas·N. Hussain
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Abstract

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.

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B. L. G. Jonsson, C. I. Kolitsidas, N. Hussain. 2013-11-18. Array Antenna Limitations. https://doi.org/10.1109/lawp.2013.2291362

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