by variation of dielectric properties

Full Title

Details of coupling devices of the kinds covered by groups or > specially adapted for high-frequency, e.g. structures providing an impedance match or phase match > Impedance matching > by variation of dielectric properties

Classification Context

Section:

ELECTRICITY

Class:

ELECTRIC ELEMENTS

Subclass:

ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS