Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
Patent
1975-11-04
1977-03-15
Smith, Alfred E.
Wave transmission lines and networks
Automatically controlled systems
With control of equalizer and/or delay network
328167, 333 70S, 333 73S, 333 82B, 333 80T, H03H 710, H03H 714, H01P 702, H01P 308
Patent
active
040127052
ABSTRACT:
An active resonant circuit to be used as a cell for a low insertion loss high level microwave filter is disclosed comprising a circuit tuned at f.sub.o inductively coupled with a negative resistance amplifier consisting of a transistor with a cut-off frequency high with respect to f.sub.o , an emitter circuit coupled to said tuned circuit, with a high transformer ratio, an adjustable tuned circuit in the base of said transistor and means for biassing said transistor for maximum negative resistance at f.sub.o . Two or more cells may be associated to constitute a filter.
REFERENCES:
patent: 2662122 (1953-12-01), Ryder
patent: 2750452 (1956-06-01), Goodrich
patent: 3348160 (1967-10-01), Lee et al.
patent: 3569850 (1971-03-01), Wegener et al.
patent: 3721918 (1973-03-01), Rosen et al.
patent: 3723773 (1973-03-01), Adams et al.
patent: 3852680 (1974-12-01), Rosen et al.
Nussbaum Marvin
Smith Alfred E.
Societe Lignes Telegraphiques et Telephoniques
LandOfFree
High input level microwave circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High input level microwave circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High input level microwave circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-428494