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Design of compact multilevel folded-line bandpass filters

TitleDesign of compact multilevel folded-line bandpass filters
Publication TypeJournal Article
Year of Publication2001
AuthorsSettaluri, R. K., A. Weisshaar, and V. K. Tripathi
JournalIEEE Transactions on Microwave Theory and Techniques
Volume49
Issue10
Pagination1804 - 1809
Date Published10/2001
ISSN00189480
Abstract

A simple design methodology for compact multilevel multiconductor folded-line bandpass filters is presented in this paper. Several new compact folded-line filter topologies in single, as well as multilevel environments are proposed. Simple closed-form design equations are presented for the extraction of an equivalent coupled transmission line representing the folded-line filter section. The folded-line filter designs are validated by full-wave electromagnetic simulation, as well as by measurement for a four-section maximally flat four-coupled-line bandpass filter. The new folded-line filters exhibit a significant reduction in footprint compared to conventional designs.

DOI10.1109/22.954787
Short TitleIEEE Trans. Microwave Theory Techn.