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- Title
Practical Design of Filters Using EBG Waveguides Periodically Loaded with Metal Ridges.
- Authors
Marini, Stephan; Soto, Pablo; Coves, Ángela; Gimeno, Benito; Boria, Vicente E.
- Abstract
The dispersion diagram of infinite periodic structures is useful for the practical design of waveguide filters. Starting from the dispersion diagram of a unit cell, it is possible to generate a finite structure with very similar pass- and stop-bands (gaps). However, truncation of the infinite periodic structure degrades the pass-band performance. In this paper, these impairments are overcome by means of suitable waveguide tapers matching the impedance of the periodic structure to the access ports. As a result, the design of practical low-pass filters, derived from passive structures based on Electromagnetic Band-Gap (EBG) waveguides periodically loaded with metal ridges, is successfully addressed. According to this procedure, a five-order and an eight-order EBG low-pass filters are obtained after an optimization step. Measurements of a manufactured prototype fully validate the proposed approach.
- Subjects
ELECTROMAGNETIC bandgap structures; WAVEGUIDE filters; MICROWAVE filters; WAVEGUIDE components; WAVEGUIDES
- Publication
Progress in Electromagnetics Research C, 2016, Vol 63, p13
- ISSN
1937-8718
- Publication type
Article
- DOI
10.2528/pierc15111603