High-frequency filter

US9166558B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9166558-B2
Application numberUS-201214241877-A
CountryUS
Kind codeB2
Filing dateOct 24, 2012
Priority dateNov 28, 2011
Publication dateOct 20, 2015
Grant dateOct 20, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Assigning multiple functions to a PA and simplifying wiring and circuits are achieved without using switches in a transmission-and-reception system using a high-frequency filter that supports multiple bands. Provided is a high-frequency filter including: first and second transmission filters; first and second reception filters; and a matching circuit connected to input sides of the first and second transmission filters. Transmission signals are inputted to the first and second transmission filters via the matching circuit. A resonator forming the matching circuit is serially connected to an input side of, among the first and second transmission filters, a filter whose passband is a higher frequency band.

First claim

Opening claim text (preview).

The invention claimed is: 1. A high-frequency filter comprising: a first input to receive a first signal; a first filter; a second filter; and a first matching circuit connected to an input of the first filter and to an input of the second filter, the first signal being provided to one of the input of the first filter and the input of the second filter_via the first matching circuit, the first matching circuit including a resonator connected in series between the first input…

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What does patent US9166558B2 cover?
Assigning multiple functions to a PA and simplifying wiring and circuits are achieved without using switches in a transmission-and-reception system using a high-frequency filter that supports multiple bands. Provided is a high-frequency filter including: first and second transmission filters; first and second reception filters; and a matching circuit connected to input sides of the first and se…
Who is the assignee on this patent?
Panasonic Corp, Skyworks Panasonic Filter Solutions Japan Co Ltd
What technology area does this patent fall under?
Primary CPC classification H04B1/006. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Oct 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).