A Fine-Tuning Phase Shifter with Vector Synthesizer Using 65-nm CMOS for Beamforming in 24-GHz Band
A Fine-Tuning Phase Shifter with Vector Synthesizer Using 65-nm CMOS for Beamforming in 24-GHz Band
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带有矢量合成器的微调移相器，使用 65 nm CMOS 在 24 GHz 频段进行波束形成
DOI：
10.1109/icecs202256217.2022.9970921
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Keiji Kishine
中科院分区：
文献类型：
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作者：
Masataka Inoue;Shinya Nakashioya;Toshiyuki Inoue;Akira Tsuchiya;Keiji Kishine
最近，无线电波传感器已被用于汽车雷达和生物传感应用。虽然使用阵列天线的波束形成是用于改变辐射方向性的有效方法，但是相移误差导致方向性显著劣化。在本文中，我们提出了一种微调移相器与矢量合成器，它能够控制相移量连续在24 GHz频段。从使用65-nm CMOS工艺制造的移相器的测量结果，在360°范围内的可变相移量连续获得。此外，估计的辐射方向图表明，制作的移相器的相移和幅度误差是可以接受的。
Recently, radio-wave sensors have been utilized in automotive radar and biological sensing applications. Although beamforming using an array antenna is effective method for changing the radiation directivity, the phase-shift error causes degradation of the directivity significantly. In this paper, we propose a fine-tuning phase shifter with a vector synthesizer, which enables to control the phase-shift amount continuously in 24-GHz band. From the measurement results of the fabricated phase shifter using 65-nm CMOS technology, the variable phase-shift amount over a range of 360° is obtained continuously. In addition, the estimated radiation patterns show that the phase-shift and amplitude errors of the fabricated phase shifter are acceptable.