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:
Mar. 10, 2020

Filed:

Apr. 27, 2018
Applicant:

Avago Technologies International Sales Pte. Limited, Singapore, SG;

Inventors:

Lueder Elbrecht, Munich, DE;

Hongya Xu, Munich, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/48 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0057 (2013.01); H04B 1/48 (2013.01); H04B 2001/485 (2013.01);
Abstract

A multiplexer includes a common port, multiple filter branches and at least one switch included in a switched filter branch of the multiple filter branches. The filter branches are connected to the common port, and each filter branch corresponds to at least one predetermined frequency band and filters a radio frequency (RF) signal according to the corresponding at least one predetermined frequency band. In a first switch state of the at least one switch, the switched filter branch includes a high-Q filter having multiple high-Q components for improving roll-off of the filtered RF signal, and in a second switch state of the at least one switch, the switched filter branch includes a low-Q filter having multiple low-Q components that support a very high bandwidth for filtering the RF signal.


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