Telecommunications – Transmitter – Diversity
Reexamination Certificate
2008-04-29
2008-04-29
Trinh, Sonny (Department: 2618)
Telecommunications
Transmitter
Diversity
C455S104000, C455S575700
Reexamination Certificate
active
07366480
ABSTRACT:
In the radio communication device of the present invention, a first carrier transmission modulation wave outputted from a first signal generator101is amplified by a first power amplifier103and transmitted from a first antenna element107through a first duplexer105. A second carrier transmission modulation wave outputted from a second signal generator102is amplified by a second power amplifier104and transmitted from a second antenna element108through a second duplexer106. Then, transmission modulation waves with the first and second carriers are subjected to spatial power combining after being transmitted from the two antenna elements107and108that permit diversity reception. As a result, the radio communication device, which uses two or more carriers (carrier waves), can achieve highly efficient power amplification with a small-sized low-cost circuit means.
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Birch & Stewart Kolasch & Birch, LLP
Sharp Kabushiki Kaisha
Trinh Sonny
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