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arXiv 2006.04211physics.app-ph
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非往复波束相控阵天线

Nonreciprocal-Beam Phased-Array Antennas

Reza Karimian, Shahrokh Ahmadi, Mona Zaghloul, Sajjad Taravati

摘要:

本研究提出一种非互易波束相控阵天线,由相位梯度贴片辐射器与晶体管非互易移相器组成。这样的天线对于发送和接收状态呈现不同的波束。建议相控阵天线提供功率放大的发射和接收状态,这是最重要的在大多数实际应用中。此外,与最近提出的时间调制天线相比,所提出的非互易波束相控阵天线不引入不期望的时间谐波和不期望的频率转换,不需要射频偏置信号。此外,非互易相控阵天线重量轻,易于集成电路制造。通过改变晶体管的直流(dc)偏置和无源移相器的相位,可以容易地调谐发射和接收波束角、波束形状和功率放大水平。这种非互易波束相控阵天线有望在军事和商业上得到应用。

英文摘要:

This study presents a nonreciprocal-beam phased-array antenna constituted of phase-gradient patch radiators integrated with transistor-based nonreciprocal phase shifters. Such an antenna exhibits different beams for transmission and reception states. The proposed phased-array antenna provides power amplification for both transmission and reception states, which is of paramount importance in most practical applications. In addition, in contrast to the recently proposed time-modulated antennas, the proposed nonreciprocal-beam phased-array antenna introduces no undesired time harmonics and unwanted frequency conversion, requires no radio frequency bias signal. Furthermore, the nonreciprocal phased-array antenna is lightweight and is amenable to integrated circuit fabrication. The transmission and reception beam angles, the beam shapes, and the power amplification level may be easily tuned by changing the direct current (dc) bias of the transistors and phase of the passive phase shifters. Such a nonreciprocal-beam phased-array antenna is expected to find military and commercial applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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