Bandpass amplifier

Amplifiers – With semiconductor amplifying device – Including frequency-responsive means in the signal...

Reexamination Certificate

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Details

C330S303000, C330S306000, C327S552000, C327S557000, C333S032000, C333S170000

Reexamination Certificate

active

10882215

ABSTRACT:
The present invention discloses a bandpass amplifier having gain and bandpass performance. The bandpass amplifier includes an input match unit for matching the gain of the amplifier and having a first filter response; a first bias unit electrically connected to the input match unit for driving the first terminal of the amplifier and having a first high pass filter response; a gain stage electrically connected to the first bias unit for providing the flat gain of the amplifier; a second bias unit electrically connected to the gain stage for driving the second terminal of the amplifier and having a second high pass filter response; and an output match unit electrically connected to the second bias unit for matching the gain of the amplifier and having a second filter response.

REFERENCES:
patent: 4984292 (1991-01-01), Millen
patent: 5051706 (1991-09-01), Zushi
patent: 5339047 (1994-08-01), Mizan et al.
patent: 5880633 (1999-03-01), Leizerovich et al.
patent: 2003/0184378 (2003-10-01), Segawa
Krauss et al. “Solid state radio engineering” John Wiley and Sons copyright 1980 p. 3.
Article entitled “20-30GHz broadband MMIC power amplifiers with compact flat gain PHEMT cells” by Sasaki et al. published by IEEE 2001 MTT-S Digest, pp. 1067-1070.
Article entitled “A 3V, 1.6 GHz Differential CMOS Bandpass Amplifier Chain for a GPS Receiver” by E. Hernandez et al. published by Escucla Superior de Ingenieros Industriales de San Sebastian (Universidad de Navarra) Spain, p. 33-37.
Article entitled “A Filter Synthesis Technique Applied to the Design of Multistage Broadband Microwave Amplifiers” by John-Paul Rooney et al., published by Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, pp. 1915-1918.
Article entitled “A Si Bipolar Monolithic RF Bandpass Amplifier” by Nhat M. Nguyen et al., published in the IEEE Journal of Solid State Circuits, vol. 27, No. 1, Jan. 1992, pp. 123-127.

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