Frequency selective two-port networks

Introduced: January 1980

Full Title

Networks using active elements > Multiple-port networks > Frequency selective two-port networks

CPC subdivides this area 3x more granularly than IPC with 8 additional codes.

8 codes are CPC-only extensions.

Note: 4 CPC extensions are marked as secondary classification only.

2 shared codes have differing titles between IPC and CPC.

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H03H 11/0405 +1 CPC CPC only CPC only
H03H 11/0416 CPC only CPC only
H03H 11/0422 +7 CPC CPC only CPC only
H03H 11/06 comprising means for compensation of loss since 1980 IPC+CPC Available in IPC and CPC
H03H 11/08 using gyrators since 1980 IPC+CPC Available in IPC and CPC
H03H 11/10 using negative impedance converters (H03H11/08 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
H03H 11/11 CPC only CPC only
H03H 11/12 using amplifiers with feedback ( , H03H11/08, H03H11/10 take precedence) since 1980 +7 CPC IPC+CPC Available in IPC and CPC
H03H 11/14 using electro-optical devices since 1980 IPC+CPC Available in IPC and CPC
H03H 2011/0477 2nd only CPC only CPC only
H03H 2011/0483 2nd only CPC only CPC only
H03H 2011/0488 2nd only CPC only CPC only
H03H 2011/0494 2nd only CPC only CPC only