Communications: radio wave antennas – Antennas – With variable reactance for tuning antenna
Reexamination Certificate
2007-08-20
2010-11-09
Le, HoangAnh T (Department: 2821)
Communications: radio wave antennas
Antennas
With variable reactance for tuning antenna
C343S702000, C343S895000
Reexamination Certificate
active
07830320
ABSTRACT:
A multi-frequency antenna comprising an IMD element, active tuning elements and parasitic elements. The IMD element is used in combination with the active tuning and parasitic elements for enabling a variable frequency at which the antenna operates, wherein, when excited, the parasitic elements may couple with the IMD element to change an operating characteristic of the IMD element.
REFERENCES:
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patent: 2004/0027286 (2004-02-01), Poilasne et al.
patent: 2005/0192727 (2005-09-01), Shostak et al.
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patent: 2006/0220966 (2006-10-01), Sarychev et al.
patent: 2007/0069958 (2007-03-01), Ozkar
patent: 2008/0001829 (2008-01-01), Rahola et al.
Rowson, Sebastian, Gregory Poilasne, and Laurent Desclos, “Isolated Magnetic Dipole Antenna: Application to GPS,” Microwave and Optical Technology Letters, vol. 41, No. 6, Jun. 20 2004.
International Search Report for PCT Application No. PCT/US2008/073612.
Desclos Laurent
Han ChulMin
Jones Rowland
Rowson Sebastian
Shamblin Jeff
Coastal Patent Agency
Ethertronics Inc.
Le HoangAnh T
Schoonover Joshua S.
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