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Waveguide Photonic Choke Joint with Wide Out-of-Band RejectionA photonic choke joint structure with a wide- stop-band is proposed for use as a waveguide flange interface. The structure consists of arrays of square metal pillars arranged in a periodic pattern to suppress the dominant-mode wave propagation in parallel-plate waveguide over a wide frequency bandwidth. The measurement results at microwave frequencies confirm the structure can provide broadband suppression, more than 56 dB over 6.25 times its operating frequency. Applications at millimeter wavelength are discussed.
Document ID
20150021378
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
External Source(s)
doi:10.1109/EuMC.2015.7345963
Authors
U-yen, Kongpop (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Wollack, Edward J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
November 17, 2015
Publication Date
September 6, 2015
Publication Information
Publication: Annual European Microwave Conference (EuMC) 2015 Proceedings
Publisher: IEEE
e-ISBN: 978-2-8748-7039-2
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
GSFC-E-DAA-TN26306-2
Meeting Information
Meeting: Annual European Microwave Conference (EuMC) 2015
Location: Paris
Country: France
Start Date: September 6, 2015
End Date: September 10, 2015
Sponsors: European Microwave Association (EuMA)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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