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https://hdl.handle.net/2440/109622
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Type: | Journal article |
Title: | Folded substrate-integrated waveguide band-pass post filter |
Author: | Zhao, C. Fumeaux, C. Lim, C. |
Citation: | IEEE Microwave and Wireless Components Letters, 2017; 27(1):22-24 |
Publisher: | IEEE |
Issue Date: | 2017 |
ISSN: | 1531-1309 1558-1764 |
Statement of Responsibility: | Cheng Zhao, Christophe Fumeaux and Cheng-Chew Lim, |
Abstract: | This letter presents a novel concept of band-pass filter realized with metal posts in folded substrate-integrated waveguide (FSIW) technology, together with an efficient specific design procedure. As a first step, it is shown that a particular dimension of the middle vane in the FSIW yields an equivalence to a dielectric-loaded unfolded rectangular waveguide. This equivalence is investigated by comparing the modal dispersion characteristics in both folded and unfolded structures. A direct comparison of the posts placed in the FSIW and in the equivalent unfolded waveguide then further confirms their similar characteristics. As a result, the classical mode-matching method (MMM), straightforwardly applied in the equivalent unfolded structure, can be used to efficiently design a post filter in FSIW technology. For illustration, the method is applied to realize a 5th-order Chebyshev band-pass post FSIW filter with a center frequency of 7GHz and a fractional bandwidth of 5.71%. The viability and efficiency of the design approach is successfully validated by finite-element simulations and measurements. |
Keywords: | Band-pass filter; Chebyshev filter; folded substrate-integrated waveguide (FSIW) |
Rights: | © 2017 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information. |
DOI: | 10.1109/LMWC.2016.2630004 |
Published version: | http://dx.doi.org/10.1109/lmwc.2016.2630004 |
Appears in Collections: | Aurora harvest 8 Electrical and Electronic Engineering publications |
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