Oscillators – With distributed parameter resonator
Patent
1979-06-18
1981-05-26
Grimm, Siegfried H.
Oscillators
With distributed parameter resonator
330287, 330 56, 331107DP, H03B 914
Patent
active
042700990
ABSTRACT:
A circuit arrangement for generating and stably amplifying broadband rf signals. The circuit arrangement includes a first rectangular waveguide designed for operation in a frequency range below its cutoff frequency and a second rectangular waveguide for operation at the operating frequency. An active semiconductor element is disposed in the first rectangular waveguide and a direct voltage is supplied to the semiconductor element. At least one waveguide section is provided for connecting the first and second rectangular waveguides and has the same width as the second rectangular waveguide and a height less than the second rectangular waveguide. The waveguide section matches the cross section of the first rectangular waveguide to the cross section of the second rectangular waveguide. A plurality of tuning devices are disposed in the first rectangular waveguide and the waveguide section and include a capacitively acting tuning screw and an inductively acting tuning device, the latter being disposed in an end of the first rectangular waveguide remote from the waveguide section.
REFERENCES:
patent: 4063186 (1977-12-01), Rubin
Eddolls et al., "High-Power High-Efficiency C.W. Gunn Oscillators In X Band", Electronics Letters, vol. 7, No. 16, Aug. 12, 1971, pp. 472, 473.
Downing et al., "Q Band (38 GHz) Varactor-Tuned Gunn Oscillators", Electronics Letters, vol. 9, No. 11, May 31, 1973, pp. 244, 245.
Akaike et al., "Millimeter-Wave Broad-Band Solid-State Circuits", Review of the Electrical Communications Laboratories, vol. 25, Nos. 9-10, Oct. 1977, pp. 997-1014.
Sene et al., "A Wide-Band Gunn-Effect C.W. Waveguide Amplifier", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-20, No. 10, Oct. 1972, pp. 645-650.
Gupta, "Large-Signal Equivalent Circuit for IMPATT-Diode", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-21, No. 11, Nov. 1973, pp. 689-694.
Gill Hardial S.
Tegel Othmar
Grimm Siegfried H.
LICENTIA Patent-Verwaltungs-G.m.b.H.
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