Low-noise amplifier with a transformer

Details Low-noise amplifier with a transformer Low-noise amplifier with a transformer

2007-10-30

2007-10-30

Nguyen, Khanh Van (Department: 2817)

Amplifiers

Output networks

Transformer coupled

C330S165000

Reexamination Certificate

active

11034453

ABSTRACT:
An amplifier circuit includes a transistor having a control terminal, a first and a second terminal, a signal input terminal coupled to the control terminal of the transistor, as well as a transformer with a primary side and a secondary side, the primary side of which is coupled to the first or second terminal of the transistor. The amplifier circuit further includes a signal output terminal coupled to the secondary side of the transformer. Hereby it is possible to provide an amplifier circuit with a better characteristic as opposed to a conventional amplifier circuit, which is further easy to manufacture.

REFERENCES:
patent: 5339048 (1994-08-01), Weber
patent: 6259325 (2001-07-01), Ishizuka et al.
Bakalski et al., “A Monolithic 2.45 GHz, 0.56 W Power Amplifier with 45% PAE at 2.4V in Standard 25 GHz FTSi-Bipolar”, IEEE Symp. on Circuits and Systems, 2002, vol. 4, pp. 803-806, (4 pages).

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