公开(公告)号：US4829527A

公开(公告)日：1989-05-09

申请号：US603251

申请日：1984-04-23

Applicant: Donald E. Wortman ,  Herbert Dropkin ,  Richard P. Leavitt

Inventor： Donald E. Wortman ,  Herbert Dropkin ,  Richard P. Leavitt

IPC: H01J23/207 ,  H01J25/02

CPC classification number: H01J25/02 ,  H01J23/207

Abstract: An orotron for generating near millimeter wavelength radiation at a selectable output frequency within a wide frequency range, in which the orotron output power is automatically tuned electronically at the selected output frequency. A piezoelectric electromechanical positioning device is connected between the two mirrors forming the open resonator of the orotron to determine the mirror separation in accordance with a position control signal. The electron beam acceleration voltage, which determines the orotron output frequency, and the position control signal are adjusted simultaneously so as to tune the output power at a single oscillation mode of the orotron resonator over a wide frequency range. In the preferred embodiment, the actual output frequency is detected and compared with the selected output frequency, and the beam acceleration voltage and mirror separation simultaneously adjusted to continuously tune and maintain the orotron output at the selected frequency.

Abstract translation: 用于在宽频率范围内以可选择的输出频率产生近毫米波长辐射的旋光管，其中旋光管输出功率以选定的输出频率被电子地自动调谐。 压电机电定位装置连接在形成旋光管的开放式谐振器的两个反射镜之间，以根据位置控制信号确定反射镜分离。 同时调节确定电子管输出频率的电子束加速电压和位置控制信号，以便在宽的频率范围内以独立振荡模式调节输出功率。 在优选实施例中，检测实际输出频率并与所选择的输出频率进行比较，同时调整光束加速电压和反射镜分离，以连续地调节和维持所选频率处的旋光管输出。

公开(公告)号：US4590596A

公开(公告)日：1986-05-20

申请号：US620975

申请日：1984-06-15

Applicant: Donald E. Wortman ,  Herbert Dropkin ,  Richard P. Leavitt

Inventor： Donald E. Wortman ,  Herbert Dropkin ,  Richard P. Leavitt

IPC: H01S1/00 ,  H01S3/00

CPC classification number: H01S1/005

Abstract: Method and apparatus for modulating coherent radiation generated by an orotron in accordance with a low voltage control signal applied to the diffraction grating to vary the grating-to-cathode voltage from the cathode-to-collector voltage over a selected voltage range determined by the maximum and minimum values of the control voltage. For amplitude modulation, the grating-to-cathode voltage is varied within a voltage range between a lower voltage at which the orotron output power starts to fall abruptly and a cutoff voltage at which coherent radiation ceases. For frequency modulation, the grating-to-cathode voltage is varied within a voltage range, including the point of maximum power output, where there is a minimum change of output power with a change in the grating-to-cathode voltage.

Abstract translation: 用于根据施加到衍射光栅的低电压控制信号来调节由旋光管产生的相干辐射的方法和装置，以在由最大值确定的选定电压范围内将栅极与阴极电压从阴极到集电极电压改变 和控制电压的最小值。 对于幅度调制，光栅到阴极的电压在电磁波输出功率开始突然下降的较低电压和相干辐射停止的截止电压之间的电压范围内变化。 对于频率调制，光栅到阴极电压在电压范围内变化，包括最大功率输出点，其中随着光栅对阴极电压的变化，输出功率的变化最小。

公开(公告)号：US5337052A

公开(公告)日：1994-08-09

申请号：US386794

申请日：1989-07-20

Applicant: Dieter R. Lohrmann ,  Herbert Dropkin

Inventor： Dieter R. Lohrmann ,  Herbert Dropkin

IPC: G01S7/03 ,  G01S13/32

CPC classification number: G01S13/325 ,  G01S7/038

Abstract: A random binary modulated sensor transmits a continuous wave r.f. signal ulated by a binary random bit pair code signal which is transmitted by an antenna. A return signal reflected from a target is received by the antenna. A receiver mixer modulates the return signal with the r.f. signal and a delay circuit delays the binary random bit pair code. A coorelator receives the modulated return signal and delayed binary random bit pair code for producing a doppler output signal. A separate r.f. path in which a portion of the modulated r.f. signal is variably attenuated and variably phase shifted is present to cancel noise signals generated by antenna mismatch in transmission.

Abstract translation: 随机二进制调制传感器传输连续波r.f. 由天线发送的二进制随机比特对码信号进行信号调制。 从天线反射的返回信号被天线接收。 接收机混频器用r.f.调制返回信号。 信号和延迟电路延迟二进制随机比特对码。 分频器接收经调制的返回信号和延迟的二进制随机比特对码，用于产生多普勒输出信号。 单独的r.f. 路径，其中调制的r.f.的一部分 信号被可变地衰减并存在可变的相移以消除由传输中的天线失配产生的噪声信号。