Electronically tuned matching networks using adjustable inductan

Wave transmission lines and networks – Automatically controlled systems – Impedance matching

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Details

333 32, 334 12, H03H 740

Patent

active

055744109

ABSTRACT:
The disclosure discusses impedance matching circuits based on parallel-resonant L-C tank circuits, and describes a low-loss design for an adjustable inductance element suitable for use in these parallel tank circuits. The application of an impedance matching circuit to a plasma process is also disclosed; in this context, a local impedance transformation circuit is used to improve power transfer to the plasma source antenna.

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