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PCE
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DIFF Subgroup
H03H 7/38

Impedance-matching networks

Introduced: September 1968

Full Title

Multiple-port networks comprising only passive electrical elements as network components > Impedance-matching networks

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

Child Classifications

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  • H03H 2007/386 2nd only CPC only CPC only
  • H03H 7/383 CPC only CPC only
  • H03H 7/40 Automatic matching of load impedance to source impedance IPC+CPC Available in IPC and CPC