Apparatus and method for broadband electromagnetic mode suppression in microwave and millimeterwave packages
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United States of America Patent
Stats
-
Jun 7, 2016
Grant Date -
Jun 18, 2015
app pub date -
Feb 25, 2015
filing date -
Aug 14, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A parallel plate waveguide structure may be configured to suppress spurious propagating modes by including a lossy frequency selective surface (FSS) formed from a resistive film. The electromagnetic material properties of individual layers disposed between the conductive plates of the waveguide may be engineered to extend the suppression band of the fundamental TE mode up to the cutoff frequency of the second TE mode, and to simultaneously create a multi-octave TM mode suppression band. Applications include, for example, cavity mode suppression in microwave and millimeterwave assemblies at the board, package, and chip level.
First Claim
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International Classification(s)
- 2015 Application Filing Year
- H01P Class
- 603 Applications Filed
- 530 Patents Issued To-Date
- 87.90 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- H01P Class
- 20.55 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 7, 2027 |
