Communications: radio wave antennas – Antennas – With lumped reactance for loading antenna
Reexamination Certificate
2006-02-21
2006-02-21
Nguyen, Hoang V. (Department: 2821)
Communications: radio wave antennas
Antennas
With lumped reactance for loading antenna
C343S752000
Reexamination Certificate
active
07002527
ABSTRACT:
A variable-directivity antenna comprises an omnidirectional antenna element, a transmission line connected to the antenna element, and an electric field adjusting structure provided in a boundary region between the antenna element and the transmission line. The electric field adjusting structure is configured to change electric field distribution of the transmission line to a desired direction.
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Cooper & Dunham LLP
Nguyen Hoang V.
Ricoh & Company, Ltd.
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