Super-reactive oscillator and receiver

Details Super-reactive oscillator and receiver Super-reactive oscillator and receiver

1995-05-31

1997-03-18

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

455318, 331107DP, 3332191, H04B 124

Patent

active

056132310

ABSTRACT:
An oscillator includes an active component or amplifier and a stabilizing reactive component. The active component is a bipolar transistor in a common base circuit and the reactive component is a dielectric resonator totally coupled to the collector of the transistor. A super-reactive receiver includes a bipolar transistor the base of which is connected to one pole of a power supply via a first resistor and to a common point via a second resistor and the emitter of which is connected to the same pole via a third resistor. The core of a ceramic tubular coaxial dielectric resonator is connected between the collector of the transistor and the common point. Its screen is connected to the common point. A capacitor is connected between the base of the transistor and the common point which is connected to the other pole of the power supply.

REFERENCES:
patent: 3484697 (1969-12-01), Abend
patent: 3599197 (1971-08-01), Boyko
patent: 4079341 (1978-03-01), Linn et al.
patent: 4370626 (1983-01-01), Ushida
patent: 4375621 (1983-03-01), Schneiter et al.
patent: 4581768 (1986-04-01), Aoki et al.
patent: 4694262 (1987-09-01), Inoue et al.
patent: 5479140 (1995-12-01), Abe et al.
English language Abstract, vol. 15, No. 367, of Japanese Patent Laid Open Patent Publication No. JP-3,145,808, by Sugita Masatoshi, published Jun. 21, 1991.
"UHF Transmission-Line Oscillator-Design Using The Smith Chart," Motorola Semiconductor Products, Inc. Application Note AN-216, by Donald Wolleson, dated Sep. 4, 1967.

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