Antenna device for injecting or extracting microwaves into/from tubular hollow bodies, and device for measuring mass flow by using antenna devices of this type
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United States of America Patent
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May 11, 2010
Grant Date -
Apr 17, 2008
app pub date -
Nov 25, 2005
filing date -
Nov 25, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An antenna arrangement for coupling high frequency electromagnetic waves into or out of a pipe-shaped hollow body includes two patch antenna elements that are located opposite one another and integrated in the pipe inner wall (5) of the hollow body (1), and have curved surfaces fitted to the curved longitudinal pipe inner wall of the hollow body (1). An apparatus for mass flow measurement includes at least two of such antenna arrangements axially spaced apart from one another in a conveyor pipe section.
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