PEC-PMC Baffle Inside Circular Cross Section Waveguide for Reduction of Cut-Off Frequency

Anuj Y. Modi; Constantine Balanis

doi:10.1109/LMWC.2016.2524529

PEC-PMC Baffle Inside Circular Cross Section Waveguide for Reduction of Cut-Off Frequency

Anuj Y. Modi, Constantine Balanis

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

A design and position of a baffle placed inside a circular waveguide is presented which leads to the lowest possible cutoff frequency. The reduction in the cutoff frequency is achieved by having one side of the baffle be PEC while the other is PMC. The introduction of PMC boundary conditions leads to unique eigenvalues for the dominant mode resulting in 66% reduction in the cutoff frequency compared to that of a circular waveguide with a baffle with PEC surfaces on both sides and 41.7% reduction in the cutoff frequency compared to that of an empty waveguide. An e^jwt time convention is used.

Original language	English (US)
Article number	7422717
Pages (from-to)	171-173
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	26
Issue number	3
DOIs	https://doi.org/10.1109/LMWC.2016.2524529
State	Published - Mar 2016

Keywords

Hollow waveguide
lowest cut-off frequency
perfect magnetic conductor (PMC)
zeros of Bessel function

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2016.2524529

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title = "PEC-PMC Baffle Inside Circular Cross Section Waveguide for Reduction of Cut-Off Frequency",

abstract = "A design and position of a baffle placed inside a circular waveguide is presented which leads to the lowest possible cutoff frequency. The reduction in the cutoff frequency is achieved by having one side of the baffle be PEC while the other is PMC. The introduction of PMC boundary conditions leads to unique eigenvalues for the dominant mode resulting in 66% reduction in the cutoff frequency compared to that of a circular waveguide with a baffle with PEC surfaces on both sides and 41.7% reduction in the cutoff frequency compared to that of an empty waveguide. An ejwt time convention is used.",

keywords = "Hollow waveguide, lowest cut-off frequency, perfect magnetic conductor (PMC), zeros of Bessel function",

author = "Modi, {Anuj Y.} and Constantine Balanis",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.",

year = "2016",

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doi = "10.1109/LMWC.2016.2524529",

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AU - Modi, Anuj Y.

AU - Balanis, Constantine

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N2 - A design and position of a baffle placed inside a circular waveguide is presented which leads to the lowest possible cutoff frequency. The reduction in the cutoff frequency is achieved by having one side of the baffle be PEC while the other is PMC. The introduction of PMC boundary conditions leads to unique eigenvalues for the dominant mode resulting in 66% reduction in the cutoff frequency compared to that of a circular waveguide with a baffle with PEC surfaces on both sides and 41.7% reduction in the cutoff frequency compared to that of an empty waveguide. An ejwt time convention is used.

AB - A design and position of a baffle placed inside a circular waveguide is presented which leads to the lowest possible cutoff frequency. The reduction in the cutoff frequency is achieved by having one side of the baffle be PEC while the other is PMC. The introduction of PMC boundary conditions leads to unique eigenvalues for the dominant mode resulting in 66% reduction in the cutoff frequency compared to that of a circular waveguide with a baffle with PEC surfaces on both sides and 41.7% reduction in the cutoff frequency compared to that of an empty waveguide. An ejwt time convention is used.

KW - Hollow waveguide

KW - lowest cut-off frequency

KW - perfect magnetic conductor (PMC)

KW - zeros of Bessel function

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ER -

PEC-PMC Baffle Inside Circular Cross Section Waveguide for Reduction of Cut-Off Frequency

Abstract

Keywords

ASJC Scopus subject areas

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