Novel high-power microwave antenna

A high-power microwave and antenna technology, applied in the direction of antenna, electrical components, radiation element structure, etc., can solve the problems of zero axial radiation, inability to concentrate energy, energy dispersion, etc., and achieve axial length reduction and high power The effect of capacity

Inactive Publication Date: 2012-09-26
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
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  • Application Information

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Problems solved by technology

If these modes are radiated directly, there will be problems such as zero axial radiation, energy di

Method used

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  • Novel high-power microwave antenna
  • Novel high-power microwave antenna
  • Novel high-power microwave antenna

Examples

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Embodiment Construction

[0020] refer to figure 1 , The radial line high-power microwave antenna of the present invention is composed of a feeding circular waveguide 1, a metal base plate 2, a slot radiation surface 3, a radial terminal short-circuit side wall 4 and a cylindrical cavity 5.

[0021] The invention works in the X-band, feeds into the TM from the circular waveguide 01 When the electromagnetic wave propagates to the two metal plates, it forms an electromagnetic wave of the TEM mode transmitted along the radial direction. During the transmission of electromagnetic waves in the radial direction, the outward traveling wave and the inward traveling wave reflected by the short-circuit side wall respectively radiate energy through the gaps of the radiation surface, and the radiation of each pair of slots can be made in the axial direction through the proper slot arrangement. The direction is superimposed, so that the energy is concentrated and radiated in the axial direction.

[0022] The desi...

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Abstract

The invention provides a radial line slit array antenna used for high-power microwave radiation. By means of connecting the terminal of a circular waveguide conveying TM01 model with a radial line slit array structure, the antenna can centralize the energy formed by TM01 model with zero axial energy into a radiation field of axial direction. The antenna works at X waveband. The bandwidth is within 5.8%. The reflection coefficient is less than -10dB. When two circles of slit pairs are provided, the gain in frequency band is no less than 20dB. The simulation results show that the radiation efficiency at working frequency can reach 92% and the power capability is an order of GW. The radius of the radiant surface is 4 lambda g. The lengthways length from the terminal of a feed circular waveguide to the terminal of the antenna is 1.35 lambda g. The novel high-power microwave antenna has the advantages of short lengthways length, high power capability, coaxial input and output, axial radiation, high radiation efficiency, and easy adjustment.

Description

technical field [0001] The invention belongs to the technical field of high-power microwave radiation system design, and relates to technologies such as mode conversion, axial radiation, axial length shortening, high-power capacity and high-efficiency radiation in high-power microwave radiation. Background technique [0002] High power microwave technology is a new discipline that emerged with the combination of plasma physics and pulse power technology in the 1970s. The pursuit of higher power, higher energy and higher frequency microwave sources in military research has promoted the development of high power microwaves. [0003] The output of the high power microwave source is the TM of the circular waveguide 0n 、TE 0n mode, or the TEM mode of the coaxial waveguide, and these modes have zero axial field. If these modes are radiated directly, there will be problems such as zero axial radiation, energy dispersion, and high side lobe level, and the energy cannot be effecti...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q19/10
Inventor 杨峰宋博张银周海京聂在平欧阳骏杨鹏
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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