Pre-Distorted Design Method for Coupled Resonator Filter and Multiplexer

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.

• Periodical: Key Engineering Materials (Volumes 439-440)
• Pages: 321-324
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.439-440.321
• Online since: June 2010
• Authors: Wen Jin Dai, Shao Fu Wang
• Keywords: Bessel Function, Multiplexer Group Delay, Pre-Distorted, Resonator Filter

References

[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).

DOI: 10.1002/cta.4490170405

[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).