DIFF Subgroup
H01Q 5/10 Resonant antennas
Introduced: January 2015
Full Title
Full titles differ between systems:
IPC:
Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements > Resonant antennas
CPC:
Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements (combinations of separate active antenna units operating in different wavebands and connected to a common feeder system H01Q21/30) > Resonant antennas
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2015.
Child Classifications
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- H01Q 5/15 for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements since 2015 IPC+CPC Available in IPC and CPC