Analysis and Evaluation Method of RC Polyphase Filter

Autor: Anna Kuwana, Akemi Hatta, Nene Kushita, Minh Tri Tran, Koji Asami, Haruo Kobayashi, Yoshiro Tamura
Rok vydání: 2019
Předmět:
Zdroj: ASICON
DOI: 10.1109/asicon47005.2019.8983545
Popis: RC polyphase filter is a complex analog filter and has asymmetric frequency characteristics with respect to DC. It is composed of resistors and capacitors, and has complex analog input / output ports. Since this type of filter can partially realize Hilbert transform, it can be used for generating orthogonal signals. In the field of wireless communications, it can also be used for suppressing interference signals by combining the Low-IF receiver topologies. In this paper, we introduce a technique to evaluate the mismatch characteristics between the real path and the imaginary path in the RC polyphase filter. These studies could lead the complex analog processing to apply for the wideband wireless communications.
Databáze: OpenAIRE