Oscillators – Solid state active element oscillator – Significant distributed parameter resonator
Patent
1981-09-04
1984-12-11
Grimm, Siegfried H.
Oscillators
Solid state active element oscillator
Significant distributed parameter resonator
331 96, 331107G, 333230, 333227, H03B 914, H01P 706
Patent
active
044881240
ABSTRACT:
A frequency stabilized oscillator includes a rectangular resonant cavity having a ground or short circuit wall, an H wall, and a top wall having an inductive window therein. A solid-state oscillating device such as a GUNN diode is attached at one end thereof to the short circuit wall, and a disk type dielectric resonator is supported from the short circuit wall and is located substantially adjacent the solid-state oscillating device so as to electromagnetically couple with the oscillating device. The inductive window is located so as to be in substantially overlying relationship with the dielectric resonator. A strip conductor is attached to the upper end of the oscillating device and extends through the H wall to the exterior of the oscillator to thereby provide a DC supply terminal for the oscillating device. The H wall of the resonant cavity is isolated from the DC supply applied to the strip conductor by means of a thin insulating layer between the strip conductor and the H wall. The capacitance formed between the strip conductor and the H wall is increased by increasing the width of the strip conductor at portions thereof which pass through the H wall. Thereby, the oscillator energy effectively passes directly through the strip conductor and the insulating layer back to the resonant cavity, while at the same time, preventing the DC supply applied to the oscillating device from being applied to the H wall.
REFERENCES:
patent: 4008446 (1977-02-01), Hirai
patent: 4386326 (1983-05-01), Yoshimura
Grimm Siegfried H.
Matsushita Electric - Industrial Co., Ltd.
Paxman W. R.
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