.~ With undesired mode suppression or selection means
DEFINITION
Classification: 331/91
(under subclass 86) Subject matter wherein the circuit constants of the oscillator are such that the oscillator may have several possible modes of operation and wherein means are provided to prevent or suppress the generation of modes other than the desired mode.
(1) Note. Undesired mode generation is most common in magnetrons of the multicavity anode type and may be prevented or suppressed in various ways, for example, by strapping (conductively connecting) alternate segments of the resonant cavities, by changing the resonant cavity structure so that alternate cavities are resonant at different frequencies or by some external means such as a resonant break-down device or wave filter device in the output coupling line of the magnetron.
SEE OR SEARCH CLASS
315, Electric Lamp and Discharge Devices: Systems,
39.65, for magnetron devices wherein the anode structure is of the plural diverse resonator type, and subclass 39.69 for magnetron devices wherein the plural resonators of the anode structure are strapped.
