IPC Subgroup
H01Q 15/02 Refracting or diffracting devices, e.g. lens, prism
Introduced: September 1968
Last revised: January 2006
Full Title
Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices > Refracting or diffracting devices, e.g. lens, prism
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
Related Keywords
DIFFRACTION of electromagnetic waves(2) LENS(ES) for electromagnetic wavesPRISMS for electromagnetic wavesREFRACTION of electromagnetic waves
5 direct subcodes
Child Classifications
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- H01Q 15/04 comprising wave-guiding channel or channels bounded by effective conductive surfaces substantially perpendicular to the electric vector of the wave, e.g. parallel-plate waveguide lens
- H01Q 15/06 comprising plurality of wave-guiding channels of different length
- H01Q 15/08 formed of solid dielectric material
- H01Q 15/1 comprising three-dimensional [3D] array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric
- H01Q 15/12 functioning also as polarisation filter