Waveguides; Transmission lines of the waveguide type

Introduced: September 1968

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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H01P 3/003 +1 CPC CPC only CPC only
H01P 3/02 with two longitudinal conductors +2 CPC IPC+CPC Available in IPC and CPC
H01P 3/10 Wire waveguides, i.e. with a single solid longitudinal conductor IPC+CPC Available in IPC and CPC
H01P 3/12 Hollow waveguides (H01P3/20 takes precedence) +2 CPC IPC+CPC Available in IPC and CPC
H01P 3/16 Dielectric waveguides, i.e. without a longitudinal conductor +1 CPC IPC+CPC Available in IPC and CPC
H01P 3/18 built-up from several layers to increase operating surface, i.e. alternately conductive and dielectric layers IPC+CPC Available in IPC and CPC
H01P 3/20 Quasi-optical arrangements for guiding a wave, e.g. focusing by dielectric lenses IPC+CPC Available in IPC and CPC