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:
Dec. 09, 2025

Filed:

Jan. 19, 2023
Applicant:

Skyworks Solutions, Inc., Irvine, CA (US);

Inventors:

Motoyuki Tajima, Yokohama, JP;

Yiliu Wang, Irvine, CA (US);

Assignee:

SKYWORKS SOLUTIONS, INC., Irvine, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/25 (2006.01); H03H 9/72 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6483 (2013.01); H03H 9/25 (2013.01); H03H 9/6433 (2013.01); H03H 9/725 (2013.01); H04B 1/0057 (2013.01);
Abstract

A circuit comprising a receive block, a transmit block, and an antenna multiplexer. The antenna multiplexer includes an input port coupled to the transmit block, an output port coupled to the receive block, a common port for coupling to an antenna, and a receive filter coupled between the common port and the output port. The receive filter includes a first plurality of resonators coupled together in series between the common port and the output port including a compensation resonator coupled directly to the output port. A first angular range of a reflection coefficient of the antenna multiplexer over a transmission frequency band measured looking into the output port of the antenna multiplexer does not overlap with a second angular range of the conjugate of the reflection coefficient of the low noise amplifier over the transmission frequency band measured looking into an input of the low noise amplifier.


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