Linearized amplifier having a bypass circuit

Details Linearized amplifier having a bypass circuit Linearized amplifier having a bypass circuit

2006-05-23

2006-05-23

Gesesse, Tilahun (Department: 2684)

Telecommunications

Transmitter

With feedback of modulated output signal

C455S069000, C455S127100, C330S149000, C330S151000

Reexamination Certificate

active

07050770

ABSTRACT:
A linearized amplifier comprising a RF input for receiving a modulated signal and a RF output for supplying a linearly amplified modulated signal. The RF input is connected to a first junction. The linearized amplifier further comprises a linearizer having an input connected to the first junction and a output connected to a second junction. The first junction defines a first path connected to the second junction through the linearizer for linearizing the modulated signal at a first defined range of power and a second path connected to the second junction bypassing the linearizer at a second defined range of power. The linearized amplifier further comprises a amplifier having a input connected to the second junction and a output connected to the RF output for supplying the linearly amplified modulated signal.

REFERENCES:
patent: 4878030 (1989-10-01), Vincze
patent: 5287543 (1994-02-01), Wolkstein
patent: 5524285 (1996-06-01), Wray et al.
patent: 5966049 (1999-10-01), Yuen et al.
patent: 6188279 (2001-02-01), Yuen et al.

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