Virtual Phase Shifter Array and Its Application on Ku Band Mobile Satellite Reception
Virtual Phase Shifter Array and Its Application on Ku Band Mobile Satellite Reception
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DOI：
10.1109/tap.2015.2393887
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发表时间：
2015-01
影响因子：
5.7
通讯作者：
Peng Chen;W. Hong;Hui Zhang;Jixin Chen;H. Tang;Zhe Chen
中科院分区：
文献类型：
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作者：
Peng Chen;W. Hong;Hui Zhang;Jixin Chen;H. Tang;Zhe Chen
介绍了一种基于虚拟移相器的相控阵，并对其进行了制作和测试。与传统的模拟移相器相比，所提出的虚拟移相器具有非常精确的相移步长(360°内14位)和在所有相态下的恒定插入损耗。为了验证这些概念，在Ku波段搭建了256(16×16)个单元的平面矩形栅格相控阵，用于移动卫星接收。相控阵在跟踪状态下的载噪比达到了11分贝。文中还给出了系统结构、相控阵单元设计、定标过程和波束跟踪方法。
A virtual phase shifter-based phased array is introduced, fabricated, and measured. Compared to the traditional analog phase shifter mechanism, the proposed virtual phase shifter has very precise phase shifting steps (14 bits over 360°) and the constant insertion loss over all phase states. To verify the concepts, a 256 (16 × 16)-element planar rectangular grid phased array is built at Ku band for mobile satellite reception. Eleven decibel carrier to noise ratio (C/N) is obtained when the phased array was in its tracking state. System architecture, phased array element design, calibration procedure, and beam tracking methods are also presented in this paper.