Oscillator electronically tunable within a very wide frequency b

Details Oscillator electronically tunable within a very wide frequency b Oscillator electronically tunable within a very wide frequency b

1979-03-06

1981-05-26

Grimm, Siegfried H.

Oscillators

With distributed parameter resonator

331117FE, 331117D, 331177R, H03B 518

Patent

active

042700973

ABSTRACT:
An oscillator of the "three-terminal" type, comprising for example a field effect transistor, having a narrow spectrum and electronically tunable within a very wide frequency band in spite of its narrow spectrum due to a resonator of the yttrium garnet ball type. The field effect transistor has its source connected to a dipole comprising an electronically variable reactance and its gate connected to a similar dipole. A feedback loop is also established between input and output circuits of the oscillator. Under the action of a single command, acting for example on a magnetic field, the reactances vary simultaneously. In one embodiment, a single yttrium garnet ball resonator has two conductive half loops inserted in the tuning dipole and coupling dipole of the oscillator.

REFERENCES:
patent: 3204199 (1965-08-01), Lance
patent: 3339152 (1967-08-01), Will
patent: 3879677 (1975-04-01), Arnold
patent: 4047126 (1977-09-01), Anderson

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