期刊
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
卷 31, 期 1, 页码 13-16出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWC.2020.3035870
关键词
Topology; Wheels; Prototypes; Couplings; Inverters; Capacitance; Robustness; Elliptic filters; extracted-pole synthesis; topology transformation
资金
- European Union [722429]
This letter introduces a novel and more accurate synthesis method for inline extracted-pole low-pass prototype filters, which relies on the robustness and accuracy of coupling-matrix synthesis methods as a first step. The second step involves a transformation to obtain the desired inline extracted-pole topology. Three synthesis examples are presented to validate this novel synthesis procedure.
This letter presents a novel, simpler, and more accurate synthesis method for inline extracted-pole low-pass prototype filters. At the present, this topology is only synthesized by using section extraction or optimization methods, known to suffer from accuracy problems, especially for high-order filters. The method described in this letter relies on the robustness and accuracy of the coupling-matrix synthesis methods by using it as a first step. The second step is instead a transformation to obtain the desired inline extracted-pole topology. Three synthesis examples are presented to validate the novel synthesis procedure.
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