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PCE
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DIFF Subgroup
H01Q 15/16

curved in two dimensions [2D], e.g. paraboloidal

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices > Reflecting surfaces; Equivalent structures > curved in two dimensions [2D], e.g. paraboloidal

CPC:

Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices (variable for purpose of altering directivity H01Q3/00; arrangements of such devices for guiding waves H01P3/20; variable for purpose of modulation H03C7/02) > Reflecting surfaces; Equivalent structures > curved in two dimensions [2D], e.g. paraboloidal

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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