High frequency band-pass filter

Details High frequency band-pass filter High frequency band-pass filter

1987-06-30

1989-03-28

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333202, 333204, 333217, 330 53, H01P 1203, H01P 1205, H03H 1110

Patent

active

048167886

ABSTRACT:
A high frequency band-pass filter which includes a single resonator or a plurality of resonators adapted to pass a high frequency signal of a predetermined frequency band region, and an active element device electrically coupled with one or the plurality of the resonators so as to present a negative resistance when the resonator is in a resonant state.

REFERENCES:
patent: 3457528 (1969-07-01), Ingerson
patent: 3721918 (1973-03-01), Rosen et al.
patent: 4012705 (1977-03-01), Prevot
patent: 4315229 (1982-02-01), Greaves et al.
patent: 4661789 (1987-04-01), Rauscher
Wild et al.,-"HANDBOOK OF TRI-PLATE MICROWAVE COMPONENTS", copyright 1956, Sanders Associates, Nashua, New Hampshire; pp. 89-108 & title page.

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