Variable transmission line transformer
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United States of America Patent
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Apr 5, 2005
Grant Date -
Mar 10, 2005
app pub date -
Sep 10, 2003
filing date -
Sep 10, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A transmission line transformer (102) having an electrical length and a fluid dielectric (108). A fluid control system (150) is also provided for selectively moving the fluid dielectric (108) from a first position to a second position. In the first position, the fluid dielectric (108) is electrically and magnetically coupled to the transmission line transformer (102) to produce a first impedance transformation. In the second position, the fluid dielectric is electrically and magnetically decoupled from the transmission line transformer (102) to produce a second impedance transformation distinct from the first impedance transformation. The fluid control system (150) can be responsive to a control signal (174) and can include a pump (154) for moving the fluid dielectric from the first position to the second position.
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