利用广义锁定方程减小QVCO RFIC中相位误差的研究

2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2021-11-16 DOI:10.1109/ISPACS51563.2021.9650975

Jian-Ming Wu, Sian‐Wei Ke, Teng-Hao Hsu, Yuan-Chih Lin, Min-Lang Yang

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引用次数: 0

摘要

本文利用广义锁定方程研究了s波段正交电压控制振荡器(QVCO)产生的正交相位的精度。外部注入的主要目的是通过抑制与正弦注入信号相关的瞬时拍频的幅度来减小QVCO的相位误差。所设计的QVCO是基于并联耦合QVCO和集成LC槽。QVCO采用台积电0.18 μm CMOS标准工艺实现。对注入锁定QVCO进行了测量，相位误差从2.44°减小到0.32°。相位误差减小了2.12°。应用于注入锁定QVCO的电源电压仅为1.1 V，功耗为20.5 mW。

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Study of Reducing Phase Error in QVCO RFIC Using Generalized Locking Equation

This paper concerns the accuracy of the quadrature phase that is generated by a S-band quadrature voltage control oscillator (QVCO) using a generalized locking equation. The main purpose of external injection is to reduce the phase error of the QVCO by suppressing the magnitude of the instantaneous beat frequency that is associated with a sinusoidal injection signal. The designed QVCO is based on a parallel-coupled QVCO with an integrated LC tank. The QVCO is implemented using the TSMC 0.18 μm CMOS standard process. Measurements of the injection-locked QVCO are made, revealing that the phase error are reduced from 2.44° to 0.32°. The reductions of the phase error is 2.12°. The supply voltage that is applied to the injection-locked QVCO is only 1.1 V and the power consumption is 20.5 mW.

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2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)

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