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. 17, 2020

Filed:

Jan. 24, 2018
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventor:

Ruediger Bauder, FeldkirchenWesterham, DE;

Assignee:

INFINEON TECHNOLOGIES AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/06 (2006.01); H04B 1/00 (2006.01); H04B 1/525 (2015.01); H04B 1/38 (2015.01);
U.S. Cl.
CPC ...
H04B 1/0057 (2013.01); H04B 1/005 (2013.01); H04B 1/525 (2013.01); H04B 7/0602 (2013.01); H04B 1/38 (2013.01);
Abstract

In accordance with an embodiment, a circuit includes a plurality of filter circuits having a first port, a second port and a third port, where a second port of a first of the plurality of filter circuits is coupled to a first port of a second of the plurality of filter circuits, and each of the plurality of filter circuits includes a first passive filter, a second passive filter, a first coupler and a combining network. The first coupler includes an input port coupled to the first port, an isolated port coupled to the second port, a first phase shifted port coupled to the first passive filter and a second phase shifted port coupled to the second passive filter, and the combining network includes a first input coupled to the first passive filter, a second input coupled to the second passive filter, and an output coupled to the third port.


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