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:
Aug. 21, 2018

Filed:

Mar. 22, 2017
Applicant:

Macom Technology Solutions Holdings, Inc., Lowell, MA (US);

Inventor:

Kohei Fujii, San Jose, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/26 (2006.01); H03F 3/213 (2006.01); H03F 3/195 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 3/265 (2013.01); H03F 3/195 (2013.01); H03F 3/213 (2013.01); H03F 3/45179 (2013.01); H03F 2200/06 (2013.01); H03F 2200/09 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45172 (2013.01); H03F 2203/45228 (2013.01);
Abstract

An apparatus includes an input transformer, an amplifier and an output transformer. The input transformer may be on a substrate and configured to convert an input signal into a differential input signal. The input signal may be a radio-frequency signal. The amplifier may be on the substrate and configured to generate a differential output signal in response to the differential input signal. The amplifier may be a balanced and distributed amplifier. The output transformer may be on the substrate and configured to convert the differential output signal into an output signal. Each of the input transformer and the output transformer may be a three line coupled balun transformer with a variable bandpass bandwidth.


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