H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
CPC: with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence)
Full Title
Full titles differ between systems:
Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements > Resonant antennas > with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements > Resonant antennas > with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01Q 9/20 Two collinear substantially straight active elements; Substantially straight single active elements (H01Q9/28 takes precedence) IPC+CPC Available in IPC and CPC
- H01Q 9/26 with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength (resonant loop antennas H01Q7/00) +1 CPC IPC+CPC Available in IPC and CPC
- H01Q 9/28 Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines (waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00) +1 CPC IPC+CPC Available in IPC and CPC