Low noise oscillator operating in the ultra-high frequency range

Details Low noise oscillator operating in the ultra-high frequency range Low noise oscillator operating in the ultra-high frequency range

1983-06-29

1986-01-28

LaRoche, Eugene R.

Oscillators

Plural oscillators

Parallel connected

331 96, 331107P, 331117D, H03B 712

Patent

active

045674493

ABSTRACT:
The invention relates to an ultra-high frequency oscillator (11-14 GHz) having a plurality of transistors, stabilized on at least one of their electrodes by a microstrip line coupled to a dielectric resonator. The oscillator according to the invention groups the transistors on the periphery of an insulating substrate, which centrally supports a single dielectric resonator common to all the transistors. The microstrip lines have two end portions, which are not coupled and are parallel to the field lines of the resonator, and a coupled central portion, perpendicular to the field lines. The transistors and microstrip lines are coplanar. The output is by a coaxial cable at the center of the substrate or by a microstrip line coplanar to the substrate.

REFERENCES:
patent: 3444480 (1969-05-01), Tykulsky et al.
patent: 3662285 (1972-05-01), Rucker
patent: 4149126 (1979-04-01), Archambault et al.
1981 IEEE MTT-S International Microwave Symposium Digest, (New York, US) U. Komatsu et al.: "A Frequency-Stabilized MIC-Oscillator Using a Newly-Developed Dielectric Resonator", pp. 313-315.
IEEE Transactions on MTT, vol. 29, Dec. 1981, No. 12 (New York, US) R. R. Bonetti et al.: "Analysis of Microstrip Circuits Coupled to Dielectric Resonators", pp. 1333-1337, FIGS. 1-5; p. 1334: II Geometry Under Analysis and Basic Assumptions.

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