发明名称 |
METHOD AND APPARATUS FOR RF INPUT COUPLING FOR INDUCTIVE OUTPUT TUBES AND OTHER EMISSION GATED DEVICES |
摘要 |
An input circuit of a microwave amplification tube achieves improved instantaneous bandwidth. By directly coupling the transmission line carrying a modulating radio frequency signal to a control grid, a low-Q input circuit is created that increases the fractional bandwidth of the system. A resonant cavity may be used to generate a voltage across the gap between the cathode and the control grid. Alternative geometries are presented whereby the electron beam is emitted from a cathode connected either to the center conductor of the transmission line or to the outer conductor of the transmission line. Alternatively, the electric field of the radio-frequency signal propagating through the transmission line may be used to create a voltage across the gap between the cathode and the control grid without using a resonant cavity. Likewise, alternative geometries are presented by which the electron beam is emitted from a cathode connected either to the center conductor or to the outer conductor of the transmission line.
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申请公布号 |
US2008122531(A1) |
申请公布日期 |
2008.05.29 |
申请号 |
US20070946718 |
申请日期 |
2007.11.28 |
申请人 |
KIRSHNER MARK FREDERICK;KOWALCZYK RICHARD DONALD;WILSEN CRAIG BISSET |
发明人 |
KIRSHNER MARK FREDERICK;KOWALCZYK RICHARD DONALD;WILSEN CRAIG BISSET |
分类号 |
H03F3/54 |
主分类号 |
H03F3/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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