A waveguide shutter using electromagnetic crystals

A new waveguide component that controls RF power flow with variable‐surface impedance electromagnetic (EM) crystals is proposed. To prove the concept, two fixed‐impedance EM crystals were tested separately inside a standard Ku‐band waveguide. The measurements show one EM crystal passing RF power wit...

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Bibliographic Details
Published in:Microwave and optical technology letters 2002-08, Vol.34 (3), p.186-187
Main Authors: Kim, M., Sung, Y., Higgins, J. A., Xin, H., Hacker, J. B.
Format: Article
Language:English
Subjects:
electromagnetic crystal
photonic crystal
waveguide shutter
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Summary:A new waveguide component that controls RF power flow with variable‐surface impedance electromagnetic (EM) crystals is proposed. To prove the concept, two fixed‐impedance EM crystals were tested separately inside a standard Ku‐band waveguide. The measurements show one EM crystal passing RF power with less than 2 dB of insertion loss from 14.5 to 16.6 GHz, and the other EM crystal reflecting the RF power with better than 60 dB of isolation. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 186–187, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10412
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.10412