LINC power transmitter

Details LINC power transmitter LINC power transmitter

2007-04-03

2007-04-03

Nguyen, Tony T. (Department: 2618)

Telecommunications

Transmitter

Noise or interference elimination

C455S127100, C455S177100, C330S002000, C330S285000

Reexamination Certificate

active

10767172

ABSTRACT:
A linear amplification with nonlinear components (LINC) power transmitter is provided. The LINC power transmitter includes a digital signal processing unit which controls the LINC power transmitter; a frequency modulation unit which modulates or converts a digital signal output from the digital signal processing unit into a radio-frequency (RF) signal; a signal amplification unit which amplifies the RF signal output from the frequency modulation unit using a gain amplifier and a power amplification module; and a direct current/direct current (DC/DC) conversion unit which controls bias of the power amplification module. Here, the DC/DC conversion unit controls a base bias and/or a collect bias of the power amplification module, and the power amplification module operates in saturation.

REFERENCES:
patent: 5426641 (1995-06-01), Afrashteh et al.
patent: 5822200 (1998-10-01), Stasz
patent: 5990734 (1999-11-01), Wright et al.
patent: 6538515 (2003-03-01), Brandt

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