公开(公告)号：US3679993A

公开(公告)日：1972-07-25

申请号：US3679993D

申请日：1967-09-27

Applicant: VARIAN ASSOCIATES

Inventor： HENTSCHEL JOHN E

IPC: H03B29/00

CPC classification number: H03B29/00

Abstract: A crossed-field noise generator tube having substantially improved efficiency is disclosed. The noise generator tube includes a cylindrical cathode emitter surrounded by a slow-wave circuit to define an annular crossed-field interaction region therebetween. The slow-wave circuit is a fundamental forward wave circuit provided with a circuit sever to define an upstream end and a downstream output end for the circuit. A resistive termination is provided at the upstream end of the circuit and an output terminal is provided at the downstream end of the circuit for extracting r.f. noise output. A magnetic circuit is provided for producing an axially directed magnetic field in the crossedfield interaction region between the anode and cathode. The intensity of the axial magnetic field produced in the interaction region is greater than ten times the cut-off magnetic field intensity for crossed-field interaction region. Use of this exceptionally high axial magnetic field intensity produces an unexpected substantial enhancement in the efficiency of the noise generator. It is believed that this improved efficiency is due to a resultant decrease in the thickness of the rotating hub of space charge in the crossed-field interaction region, thereby yielding a more efficient noise transfer mechanism for transfer of noise energy from the turbulent electron flow in the space charge to the synchronous waves on the slow-wave circuit.

Abstract translation: 公开了一种具有显着提高的效率的交叉场噪声发生器管。 噪声发生器管包括由慢波电路包围的圆柱形阴极发射器，以在其间限定环形交叉场相互作用区域。 慢波电路是具有电路服务器的基本正向波电路，用于定义电路的上游端和下游输出端。 在电路的上游端提供电阻端接，并且在电路的下游端提供输出端，用于提取r.f。 噪声输出 提供磁路用于在阳极和阴极之间的交叉场相互作用区域中产生轴向定向的磁场。 相互作用区域产生的轴向磁场的强度大于交叉场相互作用区域截止磁场强度的十倍。 使用这种非常高的轴向磁场强度会使噪声发生器的效率产生意外的显着增强。 据信这种提高的效率是由于交叉场相互作用区域中的空间电荷的旋转毂的厚度的减小，从而产生更有效的噪声传递机制，用于从湍流电子流中传递噪声能量 对慢波电路上的同步波的空间电荷。

公开(公告)号：US3646389A

公开(公告)日：1972-02-29

申请号：US3646389D

申请日：1966-06-14

Applicant: VARIAN ASSOCIATES

Inventor： HENTSCHEL JOHN E

IPC: H01J23/28

CPC classification number: H01J23/28

Abstract: The present invention relates in general to reactively loaded interdigital slow wave circuits and, more particularly, to such circuits provided with elongated reactive loading elements to provide a more uniform intensity of the electric fields of the circuit in the interaction region, whereby the interaction impedance of the circuit is increased. Such improved circuits are especially useful for forward wave amplifiers both of the crossed field and O-type to provide increased efficiency and power output.

Abstract translation: 本发明一般涉及反向加载的叉指慢波电路，更具体地说，涉及提供有细长的反应负载元件的这种电路，以在相互作用区域中提供电路的电场的更均匀的强度，由此相互作用阻抗 电路增加。 这种改进的电路对于交叉场和O型的正向波放大器特别有用，以提供更高的效率和功率输出。