Suppression of phaser quantization lobes for large flat phased array antennas

Toshev, Alexander G.

doi:10.1109/aps.2002.1016063

Cited by 3 publications

(1 citation statement)

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“…For the summary and performance comparison as well as evaluation, please refer to [6,7]. Other proposals with detailed analysis are also available in references of [8][9][10][11][12]. All the schemes proposed to handle the quantization error associated with the coarse bit quantization (i.e., 2-bit) can be divided into following two categories:…”

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confidence: 99%

Quantization Error Reduction for the Phased Array with 2-bit Phase Shifter

Song

Wang

Peng

et al. 2008

Wireless Pers Commun

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It has been widely believed that phased array antenna should use at least 3-bit (as phase controlling bit) phase shifter to provide the satisfactory scanning capability and the unnoticeable parasitic sidelobes. In this paper, we proposed a novel phase perturbation method, namely, virtual feed approach, derived from the general concept of the phase randomization, to improve the performance for the low-cost electronic scanning antennas with 2-bit phase shifters. By using this method, problems of scanning error at small scanning angle as well as the relatively high parasitic sidelobes at large scanning angle are solved simultaneously at acceptable performance degradation.

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confidence: 99%