Frequency converting filter

Details Frequency converting filter Frequency converting filter

1977-01-10

1982-11-23

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency or time domain filters and delay lines utilizing...

307221D, 333166, H03H 1502, H03H 1702, G11C 1928

Patent

active

043607918

ABSTRACT:
Disclosed is a frequency converting filter comprised of a charge transfer device transversal filter and a non-sampling filter. The transversal filter has an output lead coupled to an input of the non-sampling filter, and has frequency passbands of width .DELTA.f centered at the fixed frequencies nf.sub.s .+-.f.sub.o. The non-sampling filter has a single passband. The single passband has a width of less than f.sub.s -f.sub.o -.DELTA.f/2 and it is centered to include only a selected one of the passbands of the transversal filter.

REFERENCES:
patent: 3402355 (1968-09-01), Hannan et al.
patent: 3997973 (1976-12-01), Buss
patent: 3999152 (1976-12-01), Sato et al.
patent: 4093872 (1978-06-01), Hartman et al.
Puckette et al.-"Bucket-Brigade Transversal Filters"-IEEE Trans. on Circuits and Systems, vol. CAS-21, No. 4, Jul. 1974; pp. 502-510.
Buss et al.-"Transversal Filtering Using Charge Transfer Devices"-IEEE Journal of Solid-State Circuits, vol. SC-8, No. 2, Apr. 1973; pp. 138-146.

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