Transmitter using vertical BJT

Details Transmitter using vertical BJT Transmitter using vertical BJT

2007-09-25

2007-09-25

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

With particular solid state devices

C341S144000

Reexamination Certificate

active

11432341

ABSTRACT:
A transmitter having a vertical BJT, capable of reducing power consumption, carrier leakage of a local oscillator and an error vector magnitude (EVM), is disclosed. In the transmitter, vertical BJTs implemented by a standard triplex well CMOS process are used in a frequency up-mixer and a baseband analog circuit including a DAC, an LPF, a VGA and a PGA, thereby improving the overall performance of the transmitter.

REFERENCES:
patent: 5767551 (1998-06-01), Smayling et al.
patent: 5969561 (1999-10-01), McGillan
patent: 6750715 (2004-06-01), Allott et al.
patent: 6977426 (2005-12-01), Gomi et al.

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