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公开(公告)号：US12009676B2
公开(公告)日：2024-06-11
申请号：US17964842
申请日：2022-10-12
申请人： Sichuan University
发明人： Yang Yang , Huacheng Zhu
摘要： A SWIPT (simultaneous wireless information and power transfer) device based on the modulation of power supply ripple of magnetron includes a magnetron power supply, a magnetron, an IF (intermediate frequency) signal generator and a first capacitor. The first and second cathode power lines are provided between two ends of the magnetron power supply and two ends of the cathode of the magnetron respectively. One end of the first capacitor is connected with the IF signal generator, and another end of the first capacitor is connected with the first cathode power line. A SWIPT method includes applying an IF signal which is equivalent to the ripple of anode voltage of the magnetron to the anode voltage of the magnetron; taking a resonance signal excited by the magnetron as a local oscillation signal; generating a new signal at an output end of the magnetron, and radiating the new signal through an antenna.
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公开(公告)号：US10374551B2
公开(公告)日：2019-08-06
申请号：US15430497
申请日：2017-02-12
申请人： Muons, Inc.
摘要： A system and method of operating a magnetron power source can achieve a broad range of output power control by operating a magnetron with its cathode voltage lower than that needed for free running oscillations (e.g., below the Kapitsa critical voltage or equivalently below the Hartree voltage) A sufficiently strong injection-locking signal enables the output power to be coherently generated and to be controlled over a broad power range by small changes in the cathode voltage. In one embodiment, the present system and method is used for a practical, single, frequency-locked 2-magnetron system design.
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公开(公告)号：US20180130629A1
公开(公告)日：2018-05-10
申请号：US15563932
申请日：2016-03-31
发明人： Robert RICHARDSON
摘要： The present invention relates to a modulator system adapted to generate high voltage pulses suitable for supply across a high voltage load having a thermionic cathode, such as a magnetron. The modulator system comprises a high voltage DC PSU connected to a switching mechanism adapted to generate high voltage pulses from the high voltage DC PSU for application to a thermionic cathode of a high voltage load. The modulator system further comprises an isolation transformer; a heater PSU adapted to be connected to a cathode heater through the isolation transformer and to provide an AC current thereto. The modulator system further comprises a controller to receive pulse instruction signals and trigger generation of corresponding high voltage pulses by the switching mechanism, to calculate the estimated arrival time of a next pulse instruction signal, based on the time between previous pulse instruction signals, and disable the heater PSU for a preset time, commencing before the estimated arrival time of the next pulse instruction signal, such that no current is supplied from the heater PSU while current is supplied from the high voltage PSU.
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公开(公告)号：US09754771B2
公开(公告)日：2017-09-05
申请号：US14338779
申请日：2014-07-23
发明人： Brian T. West , Roger M. Johnson , Michael S. Cox
CPC分类号： H01J37/3405 , H01J23/05 , H01J23/10 , H01J25/50 , H01J25/587 , H01J37/345 , H03B9/10 , H03C3/32 , H03C5/04
摘要： Embodiments of the present invention generally provide a magnetron that is encapsulated by a material that is tolerant of heat and water. In one embodiment, the entire magnetron is encapsulated. In another embodiment, the magnetron includes magnetic pole pieces, and the magnetic pole pieces are not covered by the encapsulating material.
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公开(公告)号：US07687749B2
公开(公告)日：2010-03-30
申请号：US11406338
申请日：2006-04-19
摘要： It is an object to provide a magnetron for a small-sized microwave oven which takes safety standards and a noise into consideration, in a magnetron 10 for a microwave oven, a pair of choke coils 16 and 17 are provided in a filter case 11, and a height H1 of the internal surface of the filter case 11 is set to be 35 to 45 mm, an outside diameter d3 of an air-core type inductance 25 is set to be 5.5 to 7.5 mm and a sectional area S of a high frequency absorbing member 27 is set to be 5 to 16 mm2. In the magnetron 10 for a microwave oven, an electrostatic capacity between capacitor terminals 15A and 15B and the filter case 11 is increased to be 500 to 700 pF.
摘要翻译： 本发明的目的是提供一种用于小型微波炉的磁控管，其在考虑了安全标准和噪声的情况下，在用于微波炉的磁控管10中，一对扼流线圈16和17设置在过滤器壳体11中， 将过滤器壳体11的内表面的高度H1设定为35〜45mm，空心型电感25的外径d3设定为5.5〜7.5mm，截面积S为高 频率吸收部件27设定为5〜16mm 2。 在用于微波炉的磁控管10中，电容器端子15A和15B与过滤器壳体11之间的静电电容增加到500至700pF。
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公开(公告)号：US20050128014A1
公开(公告)日：2005-06-16
申请号：US10830900
申请日：2004-04-23
申请人： Hideyuki Matsuura , Akira Kikuchi , Ken Atsumi
发明人： Hideyuki Matsuura , Akira Kikuchi , Ken Atsumi
CPC分类号： H01S1/06
摘要： The present invention relates to a static magnetic field applying structure for use in an atomic oscillator in which plural sets of magnetic field generating means are provided with spacing interposed among them, and a resonance cell is disposed in a space between the magnetic field generating means. The object of the present invention is to realize the static magnetic field applying structure which can be small-sized and produced at a low cost.
摘要翻译： 本发明涉及一种在原子振荡器中使用的静磁场施加结构，其中多组磁场产生装置在它们之间设置间隔，并且在磁场产生装置之间的空间中设置谐振单元。 本发明的目的是实现能够以低成本小型化和生产的静磁场施加结构。
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公开(公告)号：US5347236A
公开(公告)日：1994-09-13
申请号：US83956
申请日：1993-06-25
IPC分类号： H03B9/10
CPC分类号： H03B9/10
摘要： A modulator for providing modulating voltages across the anode and cathode of a negatively pulsed magnetron includes a switch which, when activated, couples the modulating voltage source to the cathode terminal, a current regulator which maintains a constant current flow through the anode and cathode when the modulating voltage is applied, and a voltage control circuit that reduces an excessive time rate of voltage change across the switch caused by arcing across the anode-cathode gap. A filament power supply is provided which supplies filament current while isolating the modulating voltage at the cathode from high voltage sensitive components in the filament power supply.
摘要翻译： 用于在负脉冲磁控管的阳极和阴极之间提供调制电压的调制器包括开关，当被激活时，开关将调制电压源耦合到阴极端子，电流调节器，当电流调节器保持恒定的电流流过阳极和阴极时 施加调制电压，以及电压控制电路，其通过跨过阳极 - 阴极间隙的电弧而减小跨越开关的电压变化的过多时间速率。 提供灯丝电源，其提供灯丝电流，同时将阴极处的调制电压与灯丝电源中的高电压敏感元件隔离。
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公开(公告)号：US4881162A
公开(公告)日：1989-11-14
申请号：US168447
申请日：1988-03-15
CPC分类号： H03B9/10
摘要： A frequency control system is provided for controlling the radio frequency of a mechanically tuned coaxial magnetron under a wide variety of environmental conditions by initially tuning the magnetron according to resident tuning data and in response to a received frequency command signal, directly measuring the frequency of the magnetron output, comparing the frequency command signal with the actual frequency of each of a series of sampled output pulses, modifying a dynamically adapting calibration function according to any differences found during the comparison, retuning the magnetron according to the modified calibration function, and repeating the process to maintain the magnetron output frequency in agreement with frequency command signals. The coefficients of the calibration function converge to an optimum set of values within a few pulses. Frequency offset can be effectively corrected with the measurement of one pulse; and other frequency control characteristics, such as slope and nonlinearity, can be corrected with the measurement of but a few more at different frequencies.
摘要翻译： 提供了一种频率控制系统，用于通过根据驻留的调谐数据初始调谐磁控管，并且响应于接收的频率指令信号，直接测量频率控制系统的频率，以便在各种环境条件下控制机械调谐的同轴磁控管的射频 磁控管输出，将频率指令信号与一系列采样输出脉冲中的每一个的实际频率进行比较，根据比较期间发现的任何差异修改动态适应校准功能，根据修改的校准功能重新调谐磁控管，并重复 保持磁控管输出频率与频率指令信号一致的过程。 校准函数的系数在几个脉冲内收敛到最佳值集合。 可以通过测量一个脉冲来有效地校正频率偏移; 和其他频率控制特性，例如斜率和非线性，可以用不同频率的测量来校正，但是可以更多地校正。
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公开(公告)号：US4809004A
公开(公告)日：1989-02-28
申请号：US124203
申请日：1987-11-23
申请人： Ruy L. Brandao , Henri Baran , Arezki Manseur , Steven R. Sweet
发明人： Ruy L. Brandao , Henri Baran , Arezki Manseur , Steven R. Sweet
CPC分类号： G01S13/953 , H03C3/09 , H03J7/06 , H03L7/02
摘要： The invention comprises a weather radar system in which a magnetron transmitter is controlled in frequency by injecting therein a low power locking signal from a stable frequency source. Frequency lock between the source and the magnetron is maintained without requiring injection signals of excessive power by an automatic frequency control (AFC). The AFC determines the frequency and phase error between the injection signal and the magnetron output and adjusts the frequency of the source so as always to be within a narrow band of frequencies centered about the natural frequency of the magnetron. Over the long term, therefore, the frequency of the source will vary by an amount equal to the change in the natural frequency of the magnetron occurring during that time. Over the short term, however, the difference in frequency between the injection signal and the magnetron output is zero, while the phase difference is less than 90.degree.. The frequency source controlling the magnetron also serves as a frequency source for generating the several local oscillator frequencies required by the system receiver. Thus, the pulse to pulse transmitted signals, return signals and receiver i.f. signals all possess a high degree of phase coherence, readily permitting detection and determination of the doppler frequencies contained in the return signals.
摘要翻译： 本发明包括一种气象雷达系统，其中通过从稳定频率源注入低功率锁定信号来频率控制磁控管发射器。 维持源极和磁控管之间的频率锁定，而不需要通过自动频率控制（AFC）的过大功率的注入信号。 AFC确定注入信号和磁控管输出之间的频率和相位误差，并调整源的频率，以始终保持在以磁控管固有频率为中心的窄频带内。 因此，长期而言，源的频率将变化等于在该时间内发生的磁控管的固有频率的变化的量。 然而，短期而言，注入信号和磁控管输出之间的频率差为零，相位差小于90°。 控制磁控管的频率源还用作产生系统接收机所需的若干本地振荡器频率的频率源。 因此，脉冲脉冲发送信号，返回信号和接收机i.f. 信号都具有高度的相位相干性，容易允许检测和确定包含在返回信号中的多普勒频率。
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公开(公告)号：US4748424A
公开(公告)日：1988-05-31
申请号：US25667
申请日：1987-03-13
申请人： Melvin G. England
发明人： Melvin G. England
IPC分类号： H01J23/213 , H03L7/04 , H03B9/10
CPC分类号： H01J23/213 , H03L7/04
摘要： In a magnetron having a rotatable tuning member in the form of a spinner (121), a rotation sensor and an associated processor (10) generates an indication signal (11) representing the instantaneous magnetron frequency. Three level discriminators 13(1), 13(2), 13(3) are arranged to compare the indication signal (11) with respective threshold signals 14(1), 14(2), 14(3) representing different, preset frequencies. The level discriminators produce a trigger signal T effective to initiate transmission of a pulse of radiation whenever the instantaneous magnetron frequency matches one of the preset frequencies.
摘要翻译： 在具有旋转器（121）形式的可旋转调谐构件的磁控管中，旋转传感器和相关联的处理器（10）产生表示瞬时磁控管频率的指示信号（11）。 三级鉴别器13（1），13（2），13（3）被布置为将指示信号（11）与表示不同的预设频率的各个阈值信号14（1），14（2），14（3）进行比较 。 电平鉴别器产生触发信号T，只要瞬时磁控管频率匹配预设频率之一，该触发信号T有效地发起辐射脉冲的发射。
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