Synthesis of Multiband Filters by Linear Optimization

In this article, a new synthesis method for the generation of multiband generalized Chebyshev polynomials with prescribed transmission zeros is presented. The proposed linear optimization technique is applicable to symmetric and asymmetric filter responses. To demonstrate its general application, th...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 67; no. 12; pp. 4764 - 4772
Main Authors Musonda, Evaristo, Paradkar, Rucha A., Hunter, Ian C., Parry, Richard
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bandpass filters
Chebyshev approximation
Chebyshev synthesis
Dual band
dual-band filters
Filtering theory
Mathematical model
Microwave filters
multiband filters
Optimization
Optimization techniques
Passband
Polynomials
Prototypes
Synthesis
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Summary:In this article, a new synthesis method for the generation of multiband generalized Chebyshev polynomials with prescribed transmission zeros is presented. The proposed linear optimization technique is applicable to symmetric and asymmetric filter responses. To demonstrate its general application, the technique has been applied to the direct synthesis of dual-and triple-bandpass filters. A 7th degree dual-band prototype and a 10th degree triple-band prototype, synthesized using the proposed technique, have been fabricated and tested to validate the practicality of the method.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2019.2945755