Microstrip line slow-wave structure

A technology of slow wave structure and microstrip line, which is applied in the circuit components of transit time type electron tubes, etc., can solve the problems of large working voltage, limited application development, and large working voltage.

Inactive Publication Date: 2013-08-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

[0004] However, the coupling impedance of the N-type metal microstrip slow-wave structure TWT is relatively small, and the operating voltage is relatively large. The coupling impedance is a parameter that characterizes the strength of the electron beam and th

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Embodiment Construction

[0017] A kind of microstrip zigzag line slow wave structure, such as image 3 , 4 As shown, it includes a microstrip transmission line structure formed by a metal microstrip line 1, a dielectric substrate 2 and a metal bottom plate 3; the metal microstrip line 1 is located on the front of the dielectric substrate 2, and the metal bottom plate 3 is close to the back of the dielectric substrate 2. The metal microstrip line 1 is composed of a number of "O"-shaped metal microstrip line units connected end to end to form a periodic structure, wherein the "O"-shaped metal microstrip line unit consists of an elliptical open ring microstrip line and two sections respectively. It is composed of a microstrip line connected to both ends of the opening of the oval split ring microstrip line.

[0018] Define the size parameters of the aforementioned microstrip line slow-wave structure: a is the length of the horizontal axis of the elliptical split ring, b is the length of the longitudinal axis...

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Abstract

The invention discloses a microstrip line slow-wave structure and belongs to the technical field of microwave vacuum electrons and relates to an O-shaped electron vacuum device. The microstrip line slow-wave structure comprises a microsrip transmission line structure which is formed by a metal microstrip line (1), a medium substrate (2) and a metal base plate (3), wherein the metal microstrip line (1) is of a periodic structure which is formed by a plurality of O-shaped metal microstrip line units, the O-shaped metal microstrip line units are in end-to-end connection, each O-shaped metal microstrip line unit is composed of an ellipse opening ring microstrip line and two microstrip lines, and the two microstrip lines are respectively connected with two ends of an opening of the ellipse opening ring microstrip line respectively. Compared with a traditional N-shaped microstrip line slow-wave structure, the microstrip line slow-wave structure has higher coupling impedance and lower working voltages under the size of the same devices, and comprehensive requirements for the aspects such as output power, the working voltages and weight of a traveling-wave tube can be further met.

Description

Technical field [0001] The invention belongs to the technical field of microwave vacuum electronics, and relates to an "O" type electric vacuum device. Background technique [0002] "O" type electric vacuum device is the most important type of microwave and millimeter wave sources in the field of vacuum electronics. It has the characteristics of high power, high efficiency, high gain, frequency bandwidth and long life. It is widely used in millimeter wave and sub Millimeter-wave radar, guidance, communications, microwave remote sensing, radiation measurement and other fields are also praised as the "heart" of weapons and equipment, and its performance directly determines the level of the overall equipment. The slow wave structure of the microstrip line is mainly used for traveling wave tubes. Compared with other kinds of devices, the advantages of traveling wave tube are wide frequency band, good heat dissipation performance, single tube high gain, excellent nonlinear performanc...

Claims

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Application Information

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IPC IPC(8): H01J23/24
Inventor 廖雷魏彦玉程兆亮王森林彭立宫玉彬
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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