UHF-feedback oscillator

Details UHF-feedback oscillator UHF-feedback oscillator

1989-02-16

1990-01-02

Grimm, Siegfried H.

Oscillators

With distributed parameter resonator

331117D, 331135, 331177V, H03B 518

Patent

active

048916102

ABSTRACT:
A UHF-feedback oscillator for a frequency range of at least 300 MHz to 1000 MHz includes an amplifier stage, a voltage controlled tuning filter and a feedback quadripole. The feedback quadripole comprises a two- or three- loop helical waveguide resonator. Thus, the oscillator is easily adjustable to its oscillating condition within the very wideband frequency range of between 300 MHz and 1000 MHz and can be miniaturized in the simplest manner.

REFERENCES:
patent: 4374370 (1983-02-01), Popovski et al.
patent: 4459571 (1984-07-01), Fraser
patent: 4630002 (1986-12-01), Leiba
Pocketbook of High Frequency Technology (Taschenbuch der Hochfrequenztechnik), H. Meinke & F. W. Gundlach, pp. 1318-9, Springer-Verlag, Berlin 1956.

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