Electromagnetic crystal (EMXT) waveguide band-stop filter

Hao Xin; Aiden Higgins; Jonathan Hacker; Moonil Kim; Mark Rosker

doi:10.1109/LMWC.2003.810121

Electromagnetic crystal (EMXT) waveguide band-stop filter

Hao Xin, Aiden Higgins, Jonathan Hacker, Moonil Kim, Mark Rosker

School of Electrical Engineering

Research output: Contribution to journal › Letter

7 Citations (Scopus)

Abstract

An electromagnetic crystal (EMXT) with a bandgap around 35 GHz is used as the top and/or bottom walls of a rectangular waveguide. Because of its bandgap, such an EMXT waveguide is a very effective band-stop filter with the rejection band centered at 35 GHz. More than 70 dB of isolation for the rejection band and less than 2 dB of insertion loss for the pass band are measured. Finite element simulation of the EMXT band-stop filter agrees very well with measurements. Using tunable EMXT walls, a band-stop filter with adjustable center frequency and bandwidth can also be realized.

Original language	English
Pages (from-to)	108-110
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	13
Issue number	3
DOIs	https://doi.org/10.1109/LMWC.2003.810121
Publication status	Published - 2003 Mar

Keywords

Band-stop filter
Electromagnetic band gap
Electromagnetic crystal
Waveguides

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/LMWC.2003.810121

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Cite this

Xin, H., Higgins, A., Hacker, J., Kim, M., & Rosker, M. (2003). Electromagnetic crystal (EMXT) waveguide band-stop filter. IEEE Microwave and Wireless Components Letters, 13(3), 108-110. https://doi.org/10.1109/LMWC.2003.810121

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abstract = "An electromagnetic crystal (EMXT) with a bandgap around 35 GHz is used as the top and/or bottom walls of a rectangular waveguide. Because of its bandgap, such an EMXT waveguide is a very effective band-stop filter with the rejection band centered at 35 GHz. More than 70 dB of isolation for the rejection band and less than 2 dB of insertion loss for the pass band are measured. Finite element simulation of the EMXT band-stop filter agrees very well with measurements. Using tunable EMXT walls, a band-stop filter with adjustable center frequency and bandwidth can also be realized.",

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AU - Xin, Hao

AU - Higgins, Aiden

AU - Hacker, Jonathan

AU - Kim, Moonil

AU - Rosker, Mark

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AB - An electromagnetic crystal (EMXT) with a bandgap around 35 GHz is used as the top and/or bottom walls of a rectangular waveguide. Because of its bandgap, such an EMXT waveguide is a very effective band-stop filter with the rejection band centered at 35 GHz. More than 70 dB of isolation for the rejection band and less than 2 dB of insertion loss for the pass band are measured. Finite element simulation of the EMXT band-stop filter agrees very well with measurements. Using tunable EMXT walls, a band-stop filter with adjustable center frequency and bandwidth can also be realized.

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KW - Electromagnetic band gap

KW - Electromagnetic crystal

KW - Waveguides

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