An Improved Vector Modulator Using Q-Factor Calibration for 5-6GHz Beamforming Receiver

被引：0

作者：

Jung, Won-jae ^{[1
]}

Hong, Nam-pyo ^{[1
]}

Nam, Kyu-hyun ^{[1
]}

Lee, Ji-hoon ^{[1
]}

Kim, Tae-jung ^{[1
]}

Jang, Peter ^{[1
]}

Park, Jun-seok ^{[1
]}

机构：

[1] Kookmin Univ, UCT Lab, Seoul, South Korea

来源：

2018 INTERNATIONAL CONFERENCE ON ELECTRONICS, INFORMATION, AND COMMUNICATION (ICEIC) | 2018年

关键词：

phase shifter; vector modulator; Q-factor calibration; IQ network; beamforming; PHASE-SHIFTER; KU-BAND; C-BAND; X-BAND; CMOS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents 5 - 6GHz beamforming receiver with Q-factor calibrated vector modulator to reduce phase error and amplitude mismatch. Q-factor of vector modulator IQ network has to be 0.95 - 1.05 in 5 - 6GHz to get under +/- 3 degrees phase error. Proposed Q-factor calibration circuit selects the best capacitance and resistance for proper Q-factor in 5 - 6GHz. Beamforming receiver prototype, which is implemented in 0.13 mu m CMOS, has 0.98 - 1.03 Q-factor in 5 - 6GHz. The prototype beamforming receiver rms phase error is maximum 1.5 degrees, and amplitude mismatch is maximum 0.47dB. In addition, noise figure is 3.8 - 4.6dB at 5 - 6GHz.

引用

页码：118 / 122

页数：5

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