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DIFF Subgroup
H01Q 11/10

Logperiodic antennas (H01Q11/08 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Log-periodic antennas

CPC: Logperiodic antennas (H01Q11/08 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements > Non-resonant antennas, e.g. travelling-wave antenna > Log-periodic antennas

CPC:

Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements (leaky waveguides antennas or slot antennas H01Q13/00) > Non-resonant antennas, e.g. travelling-wave antenna (Yagi antennas H01Q19/30) > Logperiodic antennas (H01Q11/08 takes precedence)

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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