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- W1965121021 abstract "Array antenna impedance bandwidth performance is a critical factor for antenna design, in particular for arrays in radar application and more recently for array antennas in communication systems. A priori methods to quantify bandwidth include stored energy-based estimates through the quality factor antenna Q, and sum-rule based estimates based on the antenna as a scattering object. A recently introduced, array figure of merit, uses a square window or walltype estimate on the return-loss to obtain bounds in terms of return-loss level, bandwidth, scan-range and unit-cell specific geometrical and material information, it is based on a fundamental physics result, linking bandwidth to essentially the thickness of the array. An alternative approach is based on the Bode-Fano theory, resulting in bandwidth measures in terms of one or several quality factors. Both methods apply both to single and multi-band array antennas. Here we present these methods and make a comparison between the two approaches." @default.
- W1965121021 created "2016-06-24" @default.
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- W1965121021 date "2014-08-01" @default.
- W1965121021 modified "2023-10-02" @default.
- W1965121021 title "On methods to estimate bandwidth performance for array antennas with ground plane" @default.
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- W1965121021 doi "https://doi.org/10.1109/ursigass.2014.6929091" @default.
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