IPC Main Group
H01Q 15/00 Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
Related Keywords
QUASI-OPTICAL devices for electromagnetic waves
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01Q 15/02 Refracting or diffracting devices, e.g. lens, prism
- H01Q 15/14 Reflecting surfaces; Equivalent structures
- H01Q 15/23 Combinations of reflecting surfaces with refracting or diffracting devices
- H01Q 15/24 Polarising devices; Polarisation filters