US 5,767,749 AGranted

Microwave oscillator

AssigneeSamsung Electronics Co., Ltd.

InventorsJong-Chul Shon, Mark Ivanovich Kouznetsov, Sang-Gweon Kim

Life of this patent

Estimating the term…

Loading patent…

Abstract

A microwave oscillator with an M-type interdigital slow wave resonator structure is disclosed. In the above oscillator, the anode has top, middle and bottom resonance discs. The top disc has downward extending vanes and defines an upper resonance chamber, while the bottom disc has upward extending vanes and defines a lower resonance chamber. The upper and lower resonance chambers is separated from each other by a middle resonance disc that has upward and downward extending vanes. An emitter is placed between the filament and the anode and emits thermions into the actuating space when it is heated by the filament. The upward extending vanes of the middle disc engage with the vanes of the top disc in the type of interdigital engagement like clasped hands. The downward extending vanes of the middle disc engage with the vanes of the bottom disc in the same manner.

Claims12

Dependent claims

A microwave oscillator comprising a filament adapted for generating high temperature heat when it is applied with electricity through a pair of cathode supports, an anode surrounding said filament with an actuating space formed therebetween and adapted for generating microwaves, and an antenna adapted for leading said microwaves of the anode to the exterior of said oscillator, wherein the improvement comprises:

said anode including:
a top resonance disc provided with a plurality of downward extending vanes and adapted for defining an upper resonance chamber of a resonator;
a bottom resonance disc is provided with a plurality of upward extending vanes and adapted for defining a lower resonance chamber of said resonator;
and
a middle resonance disc placed between said top and bottom resonance discs to separate said upper and lower resonance chambers from each other;
and
an emitter placed between said filament and said anode and adapted for emitting thermions into said actuating space when said emitter is heated by said filament.

4 more elements

Dependencies are inferred from the claim text.