One-dimensional waveguide narrow slot antenna capable of scanning

A slot antenna and sweeping technology, applied in the field of array antennas, can solve the problems of uneven radiation of antenna units, difficulty in beam scanning, and difficulty in large-scale array formation, and achieve the effects of high power capacity, convenient operation, and improved power capacity.

Active Publication Date: 2013-09-25
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing waveguide narrow-side slot array antenna units such as uneven radiation, difficulty in large-scale array formation, and difficulty in beam scanning under single-frequency co

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  • One-dimensional waveguide narrow slot antenna capable of scanning
  • One-dimensional waveguide narrow slot antenna capable of scanning
  • One-dimensional waveguide narrow slot antenna capable of scanning

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Embodiment Construction

[0023] figure 1 It is a schematic diagram of a typical waveguide narrow-side slot structure provided in [Zhong Shunshi, Fei Tongqiu, Sun Yulin. Waveguide narrow-side slot array antenna design. Xi'an: Journal of Northwest Telecommunications Engineering Institute, 1976: 165-184]. The structure is mainly composed of a microwave input channel 1 , a radiation slot 2 and a matching load 3 . The microwave is fed from the input channel 1, radiated through the slot 2 during the waveguide transmission process, and the remaining energy is absorbed by the matching load 3, and the microwave mode is TE during the transmission process 10 mode, and is in a traveling wave state. This is the most typical structure of the narrow-side slot of the waveguide in the communication field, but the radiation of the slot is not uniform, it is difficult to form a large-scale array, and beam scanning cannot be performed when working at a single frequency, so it cannot be directly used in the high-power mi...

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Abstract

The invention discloses a one-dimensional waveguide narrow slot antenna capable of scanning in order to solve the problems that an existing waveguide narrow slot array antenna unit is not even in radiation, difficult to achieve beam scanning in the single frequency condition, not high in power capacity and the like. The one-dimensional waveguide narrow slot antenna capable of scanning is composed of a rectangular slot waveguide, a sliding panel and a stepping motor. The rectangular slot waveguide is composed of a first narrow wall, a second narrow wall and two wide walls, one end of the rectangular slot waveguide is provided with a microwave feed-in port, the other end of the rectangular slot waveguide is connected with a matched load, n slots are formed in the first narrow wall of the rectangular slot waveguide, and the stepping motor is fixedly arranged on the second narrow wall. The sliding panel is embedded between the first narrow wall and the second narrow wall, and the sliding panel can slide in the direction perpendicular to the second narrow wall of the waveguide. According to the one-dimensional waveguide narrow slot antenna cable of scanning, each slot unit basically achieves even radiation, the purpose that the microwave beams scan in the one-dimensional direction under the single frequency working condition is achieved, large-scale array arranging capacity and high-power microwave field application potential are achieved, the structure is simple, and operating is convenient.

Description

technical field [0001] The invention relates to an antenna in the field of microwave technology, in particular to an array antenna which can be controlled to scan radiation beams in one-dimensional direction under high-power microwave single-frequency working conditions and has the potential for large-scale array formation. Background technique [0002] In recent years, the attractive prospect of microwave, especially high-power microwave (according to the agreement of Benford and Swegle, high-power microwave refers to the electromagnetic wave with peak power greater than 100MW and frequency between 1 and 100GHz) in many fields has aroused the attention of many countries. Extensive attention and a lot of research investment, and has made great technological progress. The microwave transmitting antenna is an important part of the microwave system, and its function is to realize the effective directional radiation of the microwave. There are many kinds of existing microwave a...

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Application Information

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IPC IPC(8): H01Q13/06H01Q3/04H01Q1/42
Inventor 袁成卫杨一明钱宝良
Owner NAT UNIV OF DEFENSE TECH
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