AN EXACT SYNTHESIS METHOD FOR DUAL-BAND CHEBYSHEV IMPEDANCE TRANSFORMERS

被引：30
作者：
Castaldi, G. [1 ]
Fiumara, V. [2 ]
Gallina, I. [2 ]
机构：
[1] Univ Sannio, Dept Engn, I-82100 Benevento, Italy
[2] Univ Basilicata, Dept Environm Engn & Phys, I-85100 Potenza, Italy
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2008年 / 86卷
关键词：
D O I：
10.2528/PIER08100605
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页码：305 / 319
页数：15
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