Oscillators – Solid state active element oscillator – Transistors
Patent
1984-12-10
1986-01-21
LaRoche, Eugene R.
Oscillators
Solid state active element oscillator
Transistors
331 96, 331176, H03B 700
Patent
active
045659796
ABSTRACT:
A double dielectric resonator (1) having lower and upper preferably cylindrical dielectric elements (3, 5, respectively) is used to stabilize an oscillator operating at microwave frequencies. The dielectric elements (3, 5) are separated by a distance (d) which is greater than zero but less than an amount that will eliminate magnetic coupling between the dielectric elements (3, 5), and preferably less than an amount that will push the oscillator into a nonlinear region of the frequency versus separation (d) curve. The major axes (43, 45, respectively) of the dielectric elements (3, 5) are aligned, or else parallel but offset slightly. The invention may be used with reflection type, parallel feedback, and series feedback oscillators. Fine tuning may be achieved by means of a preferably dielectric tuning screw (37), which preferably has a thermal expansion coefficient between those of the dielectric elements (3, 5) and electrically conductive supporting walls (33, 35) to enhance the temperature compensation of the oscillator.
REFERENCES:
patent: 3475642 (1969-10-01), Karp et al.
patent: 4079341 (1978-03-01), Linn et al.
patent: 4149127 (1979-04-01), Murakami et al.
patent: 4187476 (1980-02-01), Shinkawa et al.
patent: 4307352 (1981-12-01), Shinkawa et al.
patent: 4331940 (1982-05-01), Uwano
patent: 4333062 (1982-06-01), Uwano
patent: 4357582 (1982-11-01), Ishihara et al.
patent: 4435688 (1984-03-01), Shinkawa et al.
patent: 4445097 (1984-04-01), Godart et al.
Komatsu et al., "A Frequency-Stabilized MIC Oscillator Using a Newly-Developed Dielectric Resonator", 1981 IEEE MTT-S International Microwave Symposium Digest, Los Angeles, Cal., Jun. 15-19, 1981.
Stiglitz, M. R., "Frequency Tuning of Rutile Resonators", Proceedings of the IEEE, Mar. 1966, pp. 413-414.
Karp, A. et al., "Circuit Properties of Microwave Dielectric Resonators", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-16, No. 10, Oct. 1968, pp. 818-828.
Gerdine, M. A., "A Frequency-Stabilized Microwave Band-Rejection Filter Using High Dielectric Constant Resonators", IEEE Transactions on Microwave Theory and Techniques, vol. MTT-17, No. 7, Jul. 1969, pp. 354-359.
Fiedziuszko, S. et al., "Double Dielectric Resonator", IEEE Transactions on Microwave Theory and Techniques, Sep. 1971, pp. 779-781.
Maj, S. et al., "A Composite, Multilayered Cylindrical Dielectric Resonator", 1984, IEEE MTT-S Digest, pp. 190-192.
Ford Aerospace & Communications Corporation
LaRoche Eugene R.
Pascal Robert J.
Radlo Edward J.
Sanborn Robert D.
LandOfFree
Double dielectric resonator stabilized oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double dielectric resonator stabilized oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double dielectric resonator stabilized oscillator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2300298