Method and apparatus to control an antenna efficiency test...

Communications: radio wave antennas – Antennas – Measuring signal energy

Reexamination Certificate

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Details

C455S067120, C702S057000, C702S182000

Reexamination Certificate

active

07109931

ABSTRACT:
The present invention provides a method to measure antenna efficiency using the cavity method. In particular, the present invention provides a tunable cavity that can be tuned to avoid the anti resonance and antenna-cavity coupling problems. In particular, tuning probes and/or variable volumetric sizing of the cavity are used to tune the cavity to avoid the anti resonance and antenna-cavity coupling.

REFERENCES:
patent: 5532704 (1996-07-01), Ruelle
patent: 6329953 (2001-12-01), McKivergan
patent: 6448787 (2002-09-01), Oglesby
patent: 6795030 (2004-09-01), Klingler et al.
patent: 2002/0160717 (2002-10-01), Persson et al.
patent: 2004/0155824 (2004-08-01), Nagashima
patent: 2004/0183547 (2004-09-01), Kildal
patent: 06160450 (1994-06-01), None

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