Pre-Distorted Design Method for Coupled Resonator Filter and Multiplexer

Author:

Dai Wen Jin1,Wang Shao Fu1

Affiliation:

1. Nanchang University

Abstract

In order to solve the problem of group delay of filter design, this paper presents pre-distorted design method with Bessel function for coupled resonator filter and multiplexer with the maximally flat group delay characteristic. At the same time, the formulas and unitary parameter table of Bessel function has been gotten in this paper. The directly coupled resonator pass band filter and multiplexer can be achieved by using this approach. The design two examples are presented and the group delay is flat. The results validate its effectiveness.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference4 articles.

1. KAI Hui Chen passive and active filter, theory and application《M》The people post publication Dec (1989).

2. J.D. Rhodes, Prototype filters with a maximally flat impulse response , Int. J . Circuit Theory Applicat, vol. 17, pp.421-427, (1989).

3. Arther·B·Williams , Electronic Filter Design HandBook , 《M》, The electronic Industrypublication . Feb, (1986).

4. HongJiangLu, XinDeyang, the applied Satellite communication project. 《M》The electronic Industry publication . Dec (1997).

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