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Triangular slotted waveguide array antenna

A slot array antenna and triangular wave technology, applied in slot antennas, circuits, etc., can solve the problems of deterioration of the standing wave at the input end, narrow bandwidth, etc., and achieve the effects of good matching, high gain, and low side lobes

Inactive Publication Date: 2010-08-25
TIANJING UNIV OF TECH & EDUCATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the rectangular waveguide slot antenna deviates from the center frequency, the standing wave at the input will deteriorate, resulting in narrow bandwidth

Method used

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  • Triangular slotted waveguide array antenna
  • Triangular slotted waveguide array antenna
  • Triangular slotted waveguide array antenna

Examples

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Embodiment 1

[0033] Referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a preferred embodiment is a uniformly distributed 10-slot isosceles triangular waveguide slot array antenna working in the X-band. This embodiment can be applied to other wavebands, that is, to change the length of the right-angled side of the isosceles right-angled triangle of the radiation waveguide section, such as for S-band and C-band. As shown in Figure 2, the array antenna consists of a radiation waveguide, including an isosceles right-angled triangle hypotenuse wall 1a, an isosceles right-angled triangle right-angled side wall 1b, closed ends 1c and 1d, a radiation slot 2 and a coaxial feeder.

[0034] The radiation waveguide is a metal waveguide whose cross-section is an isosceles right triangle, and it can also be made of a copper-clad dielectric plate, and the two ends are respectively closed. Length of side at right angle W 1 22.86mm, wall thickness W 2 is 1.27mm, and the length of the radiation waveguide is ...

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Abstract

The invention discloses a triangular slotted waveguide array antenna, which is used in the fields such as radar communication, microwave communication, television broadcasting system communication and the like. The triangular slotted waveguide array antenna comprises a section of waveguide; the cross section of the waveguide is an isosceles right triangle; the wall surfaces of the sloping sides of the isosceles right triangle are provided with radiation slots; and feeder equipment is an N-type coaxial connector and positioned at one end of the waveguide. The triangular slotted waveguide array antenna has the characteristics of high gain, low side lobe, compact structure, easy control of aperture distribution and the like.

Description

technical field [0001] The invention relates to the improvement of the shape and structure of the waveguide slot array antenna, in particular to a wide-band triangular waveguide slot array antenna. The invention can be used in the fields of radar communication, microwave communication, and television broadcasting system communication. Background technique [0002] Since the 1940s, the research and application of waveguide slot antennas have developed rapidly. The waveguide slot antenna was originally used in ground air defense radar, and then used in shipboard, airborne, beacon and missile-borne radar and other fields. The advantage is that the electric field amplitude and phase distribution of the array aperture can be precisely controlled, the waveguide transmission power capacity is large, the loss is small, and the requirements of high gain and low sidelobe can be easily realized. With the continuous improvement of communication technology, the waveguide slot antenna ha...

Claims

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Application Information

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IPC IPC(8): H01Q13/10
Inventor 郑宏兴孙程光王利强冯立营成丹刘颖马兴兵
Owner TIANJING UNIV OF TECH & EDUCATION
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