Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Antenna arrays or systems > Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

CPC:

Antenna arrays or systems (arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system H01Q3/00) > Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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H01Q 21/245 CPC only CPC only
H01Q 21/26 Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre IPC+CPC Available in IPC and CPC