用于正交发生器RC多相网络特性研究

基金项目:

国家部委基金资助课题

Research on Characteristics of RC Polyphase Network for Quadrature Signal Generator

1.
(Department of Graduate Management, Air Force Early Warning Academy, Wuhan 430019, China)
2.
(No.5 Department, Air Force Early Warning Academy, Wuhan 430019, China)

摘要: 正交信号发生器广泛应用于正交调制解调器、镜像抑制变频器等，RC 多相网络因其结构简单，良好的线性性能而被作为常用的正交发生器。该文基于复信号性质及矩阵理论，推导了RC 多相网络传输函数的详细表达式，构建了相关参数，分析了RC 多相网络输出信号I/Q 的平衡特性，为设计高平衡度的正交发生器提供了理论依据。
- 正交信号发生器 /
- RC多相网络 /
- 正交信号 /
- 正交调制 /
- I/Q不平衡度
Abstract: The quadrature signal generator is widely used in devices such as the quadrature modulator and image rejection frequency converter. An RC polyphase network is commonly used as a quadrature signal generator because of its simple structure and perfect linear performance. This study derives explicit transfer functions for the RC polyphase network based on the complex signal properties and the matrix theory. Moreover, build-related parameters are determined to analyze the I/Q amplitude and phase balance characteristic of the RC polyphase network, thus providing a theoretical guideline for the design of a high-balance quadrature signal generator.
- Quadrature signal generator /
- RC polyphase network /
- Quadrature signal /
- Quadrature modulation /
- I/Q imbalance