公开(公告)号：US5883367A

公开(公告)日：1999-03-16

申请号：US984859

申请日：1997-12-04

申请人： Gi-Jun Cho ,  Jae-Soo Kim

发明人： Gi-Jun Cho ,  Jae-Soo Kim

IPC分类号： H05B6/66 ,  H01J23/15 ,  H01J23/20 ,  H01J25/00 ,  H01J25/04 ,  H01J25/10 ,  H01J25/50 ,  H05B6/64 ,  H01J25/02

CPC分类号： H01J25/04 ,  H01J2225/02

摘要： A microwave oven includes a cooking chamber, a waveguide, and an apparatus for generating a microwave frequency energy. The apparatus includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit, a trimming resistor for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of holes through which the electron beams passing through the holes of the first grid pass, an anode for receiving the electrons passing through the holes of the second grid, cooling fins for cooling heat generated by the anode, a driving voltage source for providing a driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity into the cooking chamber via the waveguide, the output cavity being defined by the second grid and the anode, and a feedback structure for feeding a portion of the microwave frequency energy back to the input cavity.

摘要翻译： 微波炉包括烹饪室，波导管和用于产生微波频率能量的装置。 该装置包括用于发射电子的阴极，用于控制和聚焦来自阴极的电子流的第一栅极，用作电容器的扼流结构，其中阴极，第一栅极和扼流结构限定用作 谐振电路，用于在第一栅极上产生偏置电压的微调电阻，设置在第一栅极之上的第二栅极，并且具有多个孔，穿过第一栅极的电子束通过该孔，用于接收的阳极 通过第二栅极的空穴的电子，用于冷却由阳极产生的热的冷却翅片，用于向阴极和阳极提供驱动电压的驱动电压源，用于将微波从输出腔提取到烹饪中的天线 所述输出腔由所述第二栅极和所述阳极限定，以及用于馈送所述微波频率e的一部分的反馈结构 能量回到输入腔。

公开(公告)号：US5883368A

公开(公告)日：1999-03-16

申请号：US985209

申请日：1997-12-04

申请人： Shin-Jae Jeong

发明人： Shin-Jae Jeong

IPC分类号： H05B6/64 ,  H01J25/04 ,  H01J25/02

CPC分类号： H01J25/04 ,  H01J2225/02

摘要： An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit. The apparatus further includes a trimming resistor, one end of which is connected to the first grid and the other end thereof is connected the cathode, for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of slots through which the electron beams passing through the slots of the first grid pass, an anode for receiving the electrons passing through the slot of the second grid, a voltage converting means for rectifying an AC input voltage and providing a DC driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity, the output cavity being defined by the second grid and the anode, and a feedback structure extending from the input cavity to the output cavity, for feeding a portion of the microwave frequency energy back to the input cavity.

摘要翻译： 用于产生微波频率能量的装置包括用于发射电子的阴极，用于控制和聚焦来自阴极的电子流的第一栅极，用作电容器的扼流结构，其中阴极，第一栅极和扼流结构 定义用作谐振电路的输入腔。 该装置还包括微调电阻器，其一端连接到第一栅极，另一端连接阴极，用于在第一栅极上产生偏置电压，第二栅极设置在第一栅极之上并具有多个 穿过第一栅格的槽的电子束通过的槽，用于接收通过第二栅极的槽的电子的阳极;电压转换装置，用于整流交流输入电压，并向直流驱动电压提供直流驱动电压 阴极和阳极，用于从输出腔提取微波的天线，输出腔由第二栅极和阳极限定，以及从输入腔延伸到输出腔的反馈结构，用于馈送微波的一部分 频率能量回到输入腔。

公开(公告)号：US06259207B1

公开(公告)日：2001-07-10

申请号：US09123378

申请日：1998-07-27

申请人： Mark Frederick Kirshner

发明人： Mark Frederick Kirshner

IPC分类号： H01J2340

CPC分类号： H01J23/40 ,  H01J2225/02

摘要： A resonant cavity is coupled in series with an output waveguide of a klystron in order to enhance power within an operating band of the klystron. The response characteristic of the resonant cavity enhances the power at certain frequencies within the operating band of the klystron, e.g., at the high or low ends of the operating band, by intentionally creating a power mismatch at these certain frequencies while providing minimal effect on the power at other frequencies of the band. The resonant cavity is inductively coupled to the output waveguide through an iris that sets the phase of the reflection by virtue of its location in relation to the klystron output gap and the magnitude of the reflection by virtue of its size. A tuning apparatus may also be used for tuning the resonant frequency of the resonant cavities. Plural resonant cavities may also be utilized to provide power mismatches at plural portions of the klystron operating band.

摘要翻译： 谐振腔与速调管的输出波导串联耦合以增强速调管的工作频带内的功率。 谐振腔的响应特性在速调管的工作频带内的某些频率（例如，在工作频带的高端或低端）增强功率，有意在这些特定频率产生功率失配，同时对 在频带的其他频率的功率。 谐振腔通过虹膜感应耦合到输出波导，该虹膜通过其相对于速调管输出间隙的位置和由于其尺寸的反射的大小来设定反射的相位。 调谐装置也可用于调谐谐振腔的共振频率。 也可以使用多个谐振腔来在速调管工作频带的多个部分处提供功率失配。

公开(公告)号：US5883369A

公开(公告)日：1999-03-16

申请号：US985210

申请日：1997-12-04

申请人： Jae-Soo Kim ,  Hong-Woo Lee

发明人： Jae-Soo Kim ,  Hong-Woo Lee

IPC分类号： H05B6/64 ,  H01J25/00 ,  H01J25/04 ,  H01J25/10 ,  H01J25/02

CPC分类号： H01J25/04 ,  H01J2225/02

摘要： An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit. The apparatus further includes a trimming resistor, one end of which is connected to the first grid and the other end thereof is connected the cathode, for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of slots through which the electron beams passing through the slots of the first grid pass, an anode for receiving the electrons passing through the slots of the second grid, a driving voltage source for providing a driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity, the output cavity being defined by the second grid and the anode , and a feedback structure extending from the input cavity to the output cavity, for feeding a portion of the microwave frequency energy back to the input cavity.

摘要翻译： 用于产生微波频率能量的装置包括用于发射电子的阴极，用于控制和聚焦来自阴极的电子流的第一栅极，用作电容器的扼流结构，其中阴极，第一栅极和扼流结构 定义用作谐振电路的输入腔。 该装置还包括微调电阻器，其一端连接到第一栅极，另一端连接阴极，用于在第一栅极上产生偏置电压，第二栅极设置在第一栅极之上并具有多个 穿过第一栅格的槽的电子束通过的槽，用于接收通过第二栅极的槽的电子的阳极，用于向阴极和阳极提供驱动电压的驱动电压源，天线 用于从输出腔提取微波，所述输出腔由所述第二格栅和所述阳极限定，以及从所述输入腔延伸到所述输出腔的反馈结构，用于将所述微波频率能量的一部分馈送回所述输入腔 。