Voltage-controlled oscillator with surface-wave transmission lin

Details Voltage-controlled oscillator with surface-wave transmission lin Voltage-controlled oscillator with surface-wave transmission lin

1984-02-02

1985-12-24

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Significant distributed parameter resonator

331108B, 331177V, H03B 532

Patent

active

045609519

ABSTRACT:
A voltage-controlled oscillator includes an amplifier having two emitter-coupled differential amplifier stages, and in whose feedback network, connected in series, are a 3dB-90.degree. coupler and a surface-wave transmission line. Two variable capacitance diodes are connected to the two terminals of the coupler that are not used as input or output terminals, and a frequency control voltage is applied to both diodes. The oscillator is particularly well-suited for the transmission of digital signals with transmission speeds of over 100 Mbit/s.

REFERENCES:
patent: 3855548 (1974-12-01), Nandi et al.
patent: 4011526 (1977-03-01), Kinsman
"Oberflaechenwellen-Bauelemente", Veilleux, Bauelemente, Elektronik 14/1981, pp. 35 to 41.

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