FET tuner

Details FET tuner FET tuner

1986-11-26

1988-11-08

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

455333, 330277, 331117FE, H03J 116, H03J 126

Patent

active

047838493

ABSTRACT:
The RF stage and local oscillator stage of a tuner both include respective cascode connected dual gate field effect transistors as the amplifying device and similarly configured tuned circuits coupled to the first gate electrodes of the field effect transistors. The tracking characteristics of the tuner are enhanced due to the similar amplifier and tuned circuit configurations.

REFERENCES:
patent: 2783373 (1957-02-01), Fowler
patent: 3482167 (1969-12-01), Kaplan et al.
patent: 3611154 (1971-10-01), Kupfer
patent: 3878467 (1975-04-01), Manson
patent: 4442548 (1984-04-01), Lehmann
patent: 4503402 (1985-03-01), Englund, Jr.
patent: 4555674 (1985-11-01), Palara et al.
patent: 4593257 (1986-06-01), Wignot
patent: 4609884 (1986-09-01), Kindinger et al.
patent: 4616193 (1986-10-01), Meyer
patent: 4703286 (1987-10-01), Muterspaugh
The Schematic for the Matsushita ET17HP Tuner.
The Schematic of the MTT001A (Tuner-RF Section) for RCA CTC-130 Television Chass on pp. 2-11 of the "1985" CTC-130 RCA Television Basic Service Data.

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