Including microwave or distributed parameter structure:
(under subclass 117) Subject matter utilizing a structure or device which is peculiar to microwave frequencies or which has resistance, inductance or capacitance not concentrated in lumped circuit elements.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163+, for similar structure in an amplitude modulator.
SEE OR SEARCH CLASS
455, Telecommunications,
111, for distributed parameter structure in a frequency modulated transmitter.