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US 7,071,624 B2Granted
Microwave tube system and microwave tube
AssigneeNEC Microwave Tube, Ltd.
InventorHiroshi Tsuchida
Life of this patent
Estimating the term…
Abstract
A microwave tube has a configuration in which the connection between an anode electrode and the helix is cut, the helix is grounded, and a current suppression element is provided between the anode electrode and ground voltage for suppressing the continuous time interval of the flow of an excess current to the helix that is caused by discharge to a time interval range that does not threaten damage to the helix, i.e., to a time interval range in which an alarm signal is not supplied.
Claims6
A microwave tube system, comprising:
- a microwave tube that is provided with a helix that is grounded and a current suppression element that is inserted between an anode electrode and ground voltage for suppressing a continuous time interval of flow of excess current to said helix that is caused by discharge to a time interval range that is shorter than a prescribed time interval that would threaten damage to the helix;
- and
- a power supply device for supplying a prescribed power supply voltage to each electrode of said microwave tube, said power supply device being provided with an excess current detection circuit for supplying an alarm signal when the continuous time interval of flow of excess current to said helix is equal to or greater than a prescribed time interval that would threaten damage to said helix.
A microwave tube, comprising:
- a helix that is grounded;
- and
- a current suppression element that is inserted between an anode electrode and ground voltage for suppressing a continuous time interval of flow of an excess current to said helix that is caused by discharge to a time interval range that is shorter than a prescribed time interval that would threaten damage to said helix.
Dependencies are inferred from the claim text.