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DIFF Main Group
H01Q 7/00

Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Introduced: September 1968

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • H01Q 7/005 CPC only CPC only
  • H01Q 7/02 Collapsible antennas; Retractable antennas IPC+CPC Available in IPC and CPC
  • H01Q 7/04 Screened antennas (H01Q7/02, H01Q7/06 take precedence) IPC+CPC Available in IPC and CPC