The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 14, 2023

Filed:

May. 24, 2022
Applicant:

Psemi Corporation, San Diego, CA (US);

Inventors:

Rong Jiang, San Diego, CA (US);

Khushali Shah, San Diego, CA (US);

Assignee:

pSemi Corporation, San Diego, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01); H03F 3/193 (2006.01); H03F 1/56 (2006.01);
U.S. Cl.
CPC ...
H03F 3/193 (2013.01); H03F 1/56 (2013.01); H03F 2200/222 (2013.01); H03F 2200/294 (2013.01); H03F 2200/372 (2013.01); H03F 2200/451 (2013.01);
Abstract

Compact low noise amplifiers that have wide-band coverage while meeting necessary input matching and output matching characteristics. Embodiments include a wide-band, two-stage LNA with minimum degradation in performance compared to multiple narrow-band, single-stage LNAs. A generalized embodiment includes a first amplifier stage having a terminal coupled to a mutually coupled inductor circuit and to a second amplifier stage. The second amplifier stage includes a terminal coupled to the mutually coupled inductor circuit. The mutually coupled inductor circuit comprises electromagnetically coupled inductors L, L. Second terminals of the first and second amplifier stages are coupled to respective degeneration inductors. The electromagnetically coupled inductors L, Lof the inductor circuit substantially increase the output bandwidth of the LNA with minimum degradation in performance.


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