Microwave resonant circuit and tunable microwave filter using same
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United States of America Patent
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Issued Date -
Sep 23, 2004
app pub date -
Jan 30, 2004
filing date -
Aug 2, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a resonant ultra-high frequency circuit and a tuneable ultra-high frequency filter using the resonant circuit. The resonant circuit comprises at least one resonant microstrip line element, the resonant microstrip line element comprising a conducting ribbon (1) and a ground plane (4). The resonant circuit comprises at least one composite element (3) composed of an alternation of ferromagnetic layers and insulating layers located between the conducting ribbon and the ground plane. The invention is applicable to any transmission/reception device using frequency tuning in the ultra-high frequencies field, for example such as multi-band mobile telephones.
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