H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/47
H04B 1/04 (2006.01) H03C 1/00 (2006.01) H03F 1/02 (2006.01)
Patent
CA 2035455
This invention relates to a linear transmitter which controls the bias voltage of either the drain electrode or collector electrode of an amPlifier for radio frequency based on the envelope of the modulated signal, and is char- acterized in that it controls the bias voltage of the radio frequency amplifier in digital arithmetic processing by generating the envelope using in-phase envelope component and quadrature envelope component obtained from the base band signals.
Chiba Kouji
Nojima Toshio
Takami Tadao
Tomisato Shigeru
Yamao Yasushi
Fetherstonhaugh & Co.
Nippon Telegraph And Telephone Corporation
Ntt Mobile Communications Network Inc.
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