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Progress In Electromagnetics Research
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AN EXACT SYNTHESIS METHOD FOR DUAL-BAND CHEBYSHEV IMPEDANCE TRANSFORMERS

By G. Castaldi, V. Fiumara, and I. Gallina

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Abstract:
We propose an exact synthesis method which allows the design of dual-band transformers with an arbitrary even number of uniform sections giving equi-ripple impedance matching in two separate bands centered at two arbitrary frequencies. This method is a generalization of the exact Collin-Riblet synthesis of Chebyshev single-band transformers. As compared to a single-band Collin-Riblet transformer encompassing both required passbands, the proposed design yields significantly better performance in terms of passband tolerance and width.

Citation:
G. Castaldi, V. Fiumara, and I. Gallina, "An exact synthesis method for dual-band chebyshev impedance transformers," Progress In Electromagnetics Research, Vol. 86, 305-319, 2008.
doi:10.2528/PIER08100605
http://www.jpier.org/PIER/pier.php?paper=08100605

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