US PATENT SUBCLASS 333 / 168
.~.~ Including recurrent sections

Current as of: June, 1999
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333 /   HD   WAVE TRANSMISSION LINES AND NETWORKS

24 R  DF  COUPLING NETWORKS {15}
167  DF  .~ Frequency domain filters utilizing only lumped parameters {10}
168.~.~ Including recurrent sections

DEFINITION

Classification: 333/168

Including recurrent sections:

(under subclass 167) Subject matter wherein similar or equivalent elements or groups of elements are cascaded.

(1) Note. Examples of filters classified here are ladder network or reiterations of "T" or "pi" networks whose formats are topos:graphically similar but whose

parameters may not be equal in every reiteration. Examples of such filters included are:

[figure] [figure]