CPC Main Group
H01P 1/00 Auxiliary devices (coupling devices of the waveguide type H01P5/00)
14 direct subcodes
Child Classifications
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- H01P 1/02 Bends; Corners; Twists
- H01P 1/04 Fixed joints
- H01P 1/06 Movable joints, e.g. rotating joints
- H01P 1/08 Dielectric windows
- H01P 1/10 for switching or interrupting
- H01P 1/16 for mode selection, e.g. mode suppression or mode promotion; for mode conversion
- H01P 1/165 for rotating the plane of polarisation
- H01P 1/18 Phase-shifters (H01P1/165 takes precedence)
- H01P 1/20 Frequency-selective devices, e.g. filters
- H01P 1/22 Attenuating devices (dissipative terminating devices H01P1/26)
- H01P 1/24 Terminating devices
- H01P 1/30 for compensation of, or protection against, temperature or moisture effects
- H01P 1/32 Non-reciprocal transmission devices (H01P1/02 - H01P1/30 take precedence)