发明名称 |
Pulsed depressed collector |
摘要 |
A high power RF device has an electron beam cavity, a modulator, and a circuit for feed-forward energy recovery from a multi-stage depressed collector to the modulator. The electron beam cavity include a cathode, an anode, and the multi-stage depressed collector, and the modulator is configured to provide pulses to the cathode. Voltages of the electrode stages of the multi-stage depressed collector are allowed to float as determined by fixed impedances seen by the electrode stages. The energy recovery circuit includes a storage capacitor that dynamically biases potentials of the electrode stages of the multi-stage depressed collector and provides recovered energy from the electrode stages of the multi-stage depressed collector to the modulator. The circuit may also include a step-down transformer, where the electrode stages of the multi-stage depressed collector are electrically connected to separate taps on the step-down transformer. |
申请公布号 |
US9177748(B2) |
申请公布日期 |
2015.11.03 |
申请号 |
US201414174637 |
申请日期 |
2014.02.06 |
申请人 |
The Board of Trustees of the Leland Stanford Junior University |
发明人 |
Kemp Mark A. |
分类号 |
H01J25/34;H01J23/027;H01J23/34 |
主分类号 |
H01J25/34 |
代理机构 |
Lumen Patent Firm |
代理人 |
Lumen Patent Firm |
主权项 |
1. A high power RF device comprising:
an electron beam cavity having a cathode, an anode, and a multi-stage depressed collector; a modulator configured to provide pulses to the cathode; and a circuit connected to the modulator and to electrode stages of the multi-stage depressed collector, wherein the circuit comprises a storage capacitor that dynamically biases potentials of the electrode stages of the multi-stage depressed collector and provides recovered energy from the electrode stages of the multi-stage depressed collector to the modulator. |
地址 |
Palo Alto CA US |