Cold testing device of high-power microwave source coaxial high-frequency electromagnetic structure
A high-power microwave and high-frequency electromagnetic technology, applied in the fields of electromagnetic field characteristics, nuclear power generation, reduction of greenhouse gases, etc.
Pending Publication Date: 2022-08-05
NAT UNIV OF DEFENSE TECH
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At the same time, the power loss and energy reflection of this device should be as small as possible. This device has important application value in the cold measurement of high-power microwave source coaxial high-frequency electromagnetic structures, but there are no relevant research reports so far.
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[0029] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.
[0030] Referring to FIG. 1 , this embodiment discloses a cold measuring device with a coaxial high-frequency electromagnetic structure of a high-power microwave source. The cold measuring device is rotationally symmetric about the central axis (ie, the OO′ axis), and is defined close to the central axis OO The side of ' is the inner side, and the side away from the central axis OO' is the outer side. When in use, the end with the smaller radius is connected to the N-type joint of the VNA, and the side connected to the N-type joint of the VNA is defined as the left side of the present invention. The end with the larger radius is connected to the c...
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The invention discloses a cold testing device of a coaxial high-frequency electromagnetic structure of a high-power microwave source, the cold testing device is in rotational symmetry about a central axis, the cold testing device comprises an inner cylinder part, an outer cylinder part and a medium lining part, the inner cylinder part is coaxially nested in the outer cylinder part, and the medium lining part is coaxially nested in the outer cylinder part. The medium lining part is located between the inner cylinder part and the outer cylinder part, the cold testing device is provided with a first connecting end and a second connecting end, and the diameter of the first connecting end is smaller than that of the second connecting end. According to the invention, the TEM mode in the VNA small-radius N-type connector can be transited to the TEM mode of the large-radius coaxial waveguide, so that the function of carrying out cold test on the large-radius coaxial high-frequency electromagnetic structure is realized, and whether the resonance characteristic of the tested coaxial high-frequency electromagnetic structure is matched with a numerical simulation result or not can be verified.
Description
technical field [0001] The invention relates to the technical field of high-power microwaves, and more particularly, to a cold measuring device with a coaxial high-frequency electromagnetic structure of a high-power microwave source. Background technique [0002] High Power Microwave (HPM for short) generally refers to strong electromagnetic radiation with a frequency of 300MHz to 300GHz, a peak power greater than 100MW or an average power greater than 1MW. The applications of high-power microwaves are diverse, including: high-power pulsed radar, radio-frequency acceleration of high-energy particles, controlled thermonuclear reactions, plasma heating, and high-power microwave weapons. [0003] A high-power microwave source is a device that converts the kinetic energy of the electron beam into microwave energy by using the interaction mechanism of a strong-current relativistic electron beam with its eigenmodes in a vacuum high-frequency electromagnetic structure. Before a hi...
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IPC IPC(8): G01R29/08
CPCG01R29/0871Y02E30/10
Inventor 巨金川陈英豪张威张军周云霄
Owner NAT UNIV OF DEFENSE TECH