Communications: radio wave antennas – Antennas – Plural antennas
Reexamination Certificate
2007-07-10
2007-07-10
Dinh, Trinh (Department: 2821)
Communications: radio wave antennas
Antennas
Plural antennas
C343S833000
Reexamination Certificate
active
11523703
ABSTRACT:
An antenna apparatus including a feed element excited by first and second wireless frequency signals, first non-feed elements for controlling directivity with respect to the first wireless frequency signal, second non-feed elements for controlling directivity with respect to the second wireless frequency signal, second variable-reactance circuits disposed between the second non-feed elements and ground, filters for passing the first frequency band and cutting off the second frequency band, which are connected to the first non-feed elements, and first variable-reactance circuits disposed between the filters and the ground.
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Dickstein , Shapiro, LLP.
Mancuso Huedung
Murata Manufacturing Co. Ltd
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