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True Time Delay Scheme for X-band Phased Array Radar

True Time Delay Scheme for X-band Phased Array Radar
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摘要 The system of a true-time delay line for X-band and 8-unit phased array antennas is introduced. Changing the length of a chirp grating with piezotranslator(PZT), the variable delay is obtained. The scheme is applied to X-band phased array radar whose searching data rate is 56/s. It is simulated that the beam squinting is influenced by the error of real time delay. The relation between the beamforming mode and its modifying volt is discussed. The system of a true-time delay line for X-band and 8-unit phased array antennas is introduced. Changing the length of a chirp grating with piezotranslator（PZT）, the variable delay is obtained. The scheme is applied to X-band phased array radar whose searching data rate is 56/s. It is simulated that the beam squinting is influenced by the error of real time delay. The relation between the beamforming mode and its modifying volt is discussed.
作者 LI Zheng
机构地区 Department of Physics and Electronics
出处 《Semiconductor Photonics and Technology》 CAS 2007年第1期53-57,共5页 半导体光子学与技术（英文版）
基金 Natural Science Foundation from Universities in Jiangsu Province(06KJD510034)
关键词 phased array antennas true-time delay chirped grating far-field pattern 实时延迟 X频带相控天线阵雷达 线性调频脉冲光栅 远场图形
分类号 TN958.92 [电子电信—信号与信息处理]
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参考文献16

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Semiconductor Photonics and Technology
2007年 第1期

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