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US 2006/0132258 A1Published application
Method and apparatus for large ratio radio frequency variable inductor and use in radio frequency power matching systems
OwnerJohn Ogleinventor
Life of this patent
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Abstract
A radio frequency variable inductor with a high ratio of inductance variation to minimum inductance is provided by combining both conductive elements and ferromagnetic elements in an inductance variation assembly, which is rotatably mounted inside a coil. This variable inductor is combined with fixed capacitors and a variable transformer using a rotatable primary coil to provide a complete radio frequency match system.
Claims7
A radio frequency variable inductor using a rotatable inductance adjustment assembly mounted inside a fixed coil, said rotatable inductance adjustment assembly incorporating both conductive and ferromagnetic elements.
Dependencies are inferred from the claim text.