Open AccessResearch on Characteristics of RC Polyphase Network for Quadrature Signal Generator
Author(s) -
Y. M. Hu,
YU Guo-wen,
Yuanfa Zhang
Publication year - 2013
Publication title -
leida xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.301
H-Index - 13
ISSN - 2095-283X
DOI - 10.3724/sp.j.1300.2013.13069
Subject(s) - polyphase system , rc circuit , quadrature (astronomy) , physics , electronic engineering , engineering , voltage , capacitor , quantum mechanics
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