Frequency-tunable microwave bandpass filter

US8975985B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8975985-B2
Application numberUS-201013518380-A
CountryUS
Kind codeB2
Filing dateDec 17, 2010
Priority dateDec 22, 2009
Publication dateMar 10, 2015
Grant dateMar 10, 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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A frequency-tunable microwave bandpass filter including a wave guide having a rectangular cross-section and including a stationary first conductive portion I and a movable second conductive portion II. The first portion includes first conductive partitions having one or more conductive obstacles related to complementary openings in the section of the guide that forms capacitive irises. The first partitions are transversely mounted, at the propagation of the wave in the guide, define cavities in the longitudinal direction of the guide, are rigidly connected to the first portion and the second conductive partitions that have one or more openings defining capacitive irises, and, in combination with the adjacent guide lengths, form immitance inverters. The first partitions form a series of resonating cavities coupled by the immitance inverters. A means ensures electrical contact between the conductive portions I and II.

First claim

Opening claim text (preview).

The invention claimed is: 1. A frequency-tunable microwave bandpass filter, comprising: a waveguide of rectangular section comprising a first fixed conductive portion and a second moving conductive portion; and a connector ensuring electrical contact between the first fixed conductive portion and the second moving conductive portion, wherein: said first fixed conductive portion comprises three longitudinal conductive partitions forming three sides of the waveguide, the rectangu…

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What does patent US8975985B2 cover?
A frequency-tunable microwave bandpass filter including a wave guide having a rectangular cross-section and including a stationary first conductive portion I and a movable second conductive portion II. The first portion includes first conductive partitions having one or more conductive obstacles related to complementary openings in the section of the guide that forms capacitive irises. The firs…
Who is the assignee on this patent?
Meuriche Bernard, Thales Sa
What technology area does this patent fall under?
Primary CPC classification H01P1/207. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 10 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).