Oscillators – With distributed parameter resonator
Patent
1983-06-17
1985-09-17
LaRoche, Eugene R.
Oscillators
With distributed parameter resonator
331105, 331107DP, 331117D, 331177V, 332 18, 332 30V, H03B 518, H03B 714, H03C 308, H03C 320
Patent
active
045423520
ABSTRACT:
A modulated elongate cavity oscillator with minimized modulation nonlinearities includes a first cavity having dimensions which determine the fundamental resonant frequency of the oscillator, a gain element disposed in said first cavity that provides amplification to sustain oscillation, and a varactor diode disposed in said first cavity for modulating the fundamental frequency. A first waveguide is coupled to the first cavity for absorbing modes higher than the mode of the fundamental frequency which have an electric field maxima concurrent with the longitudinal center line of the first cavity. A second waveguide is coupled to the first cavity for absorbing modes higher than the mode of fundamental frequency which have an electric field minima concurrent with the longitudinal center line of the first cavity, whereby the first and second waveguides provide effective attenuation of higher order modes such that modulation nonlinearities due to the existence of higher order modes are substantially eliminated.
REFERENCES:
patent: 3704429 (1972-11-01), Sigmon
patent: 3803513 (1974-04-01), Oya et al.
patent: 3805193 (1974-04-01), Mohr
patent: 3858123 (1974-12-01), Ohta et al.
patent: 3883822 (1975-05-01), Basset
patent: 3913035 (1975-10-01), Havens
patent: 3919666 (1975-11-01), Posner et al.
patent: 3982211 (1976-09-01), Endersz
patent: 4238747 (1980-12-01), Harp et al.
patent: 4462007 (1984-07-01), Shirai
Ohta, T. et al., "New Self-Injection Oscillator Using Directional Filter" 1973 European Microwave Conference Brussels, Belgium; Sept. 4-7, vol. 1, 4 pp.
Linearity Improvement of Microwave FM Oscillators by Harmonic Tuning, Article written by Gyorgy G. Endersz for IEEE Transactions on Microwave Theory and Techniques, vol. MTT-23, No. 4, Apr., 1975, pp. 360-367.
Article on Study of the Harmonic Effects for Waveguide Gunn-Diode Oscillator Optimization by Ezio M. Bastida, Member, IEEE published in IEEE Transactions on Microwave Theory and Techniques, vol. MTT-28, No. 4, Apr., 1980--pp. 305-313.
Gailus Paul H.
Louis Edward V.
Yester, Jr. Francis R.
LaRoche Eugene R.
Mis D. C.
Motorola Inc.
Southard Donald B.
Warren Charles L.
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