Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic

Introduced: September 1968

Of 7 combined children, 6 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

H01Q 19/005 CPC only CPC only
H01Q 19/02 Details +1 CPC IPC+CPC Available in IPC and CPC
H01Q 19/06 using refracting or diffracting devices, e.g. lens +2 CPC IPC+CPC Available in IPC and CPC
H01Q 19/10 using reflecting surfaces +4 CPC IPC+CPC Available in IPC and CPC
H01Q 19/20 Producing pencil beam by two cylindrical focusing devices with their focal lines orthogonally disposed IPC+CPC Available in IPC and CPC
H01Q 19/22 using a secondary device in the form of a single substantially straight conductive element IPC+CPC Available in IPC and CPC
H01Q 19/28 using a secondary device in the form of two or more substantially straight conductive elements (log- periodic antennas H01Q11/10; constituting a reflecting surface H01Q19/10) IPC+CPC Available in IPC and CPC