Wave transmission lines and networks – Coupling networks – Frequency or time domain filters and delay lines utilizing...
Patent
1981-04-08
1984-02-07
Nussbaum, Marvin L.
Wave transmission lines and networks
Coupling networks
Frequency or time domain filters and delay lines utilizing...
328151, 333166, 333175, 377 59, H03H 1502, H03H 1706, H03H 700
Patent
active
044306296
ABSTRACT:
The invention relates to an electrical filter circuit operated with a definite sampling and clock frequency f.sub.T, such filter being made up of CTD elements, and having at least one bipolar or quadripolar resonator in the form of a self-contained conductor loop (for example, C.sub.1, C.sub.2) with unidirectional transmission behavior.
Differences in the transfer capacitances of such circuits are reduced, as far as possible, in order to thereby simplify integrated manufacture as far as possible, by positioning the frequency band to be filtered out at a frequency position which lies above half the clock frequency (f.sub.T /2), or in the range from f.sub.T /2 through 3f.sub.T /2.
REFERENCES:
patent: 4281296 (1981-07-01), Betzl et al.
patent: 4281297 (1981-07-01), Betzl et al.
patent: 4393356 (1983-07-01), Kuenemund
Betzl Hermann
Magerl Johann
Volejnik Wilhelm
Nussbaum Marvin L.
Siemens Aktiengesellschaft
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