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Compact type waveguide feed slot antenna

A technology of waveguide feeding and slot antenna, applied in the direction of waveguide opening, circuit, radiation element structure, etc., can solve the problems of cost increase, frequency band widening, and size increase

Active Publication Date: 2012-10-10
成都赛纳赛德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this converter is the increase in size and cost while widening the frequency band

Method used

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  • Compact type waveguide feed slot antenna
  • Compact type waveguide feed slot antenna

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Embodiment 1

[0015] like figure 1 , 2 as shown, figure 1 Among them, → represents the length direction, ↑ represents the height direction, and ⊕ represents the width direction, and the width direction is from the outside of the paper to the inside of the paper.

[0016] A compact waveguide-fed slot antenna, comprising an input rectangular waveguide 1, a radiation port 2, and at least two connecting rectangular waveguide sections 3 connecting the input rectangular waveguide 1 and the radiation port 2, and the connecting rectangular waveguide sections 3 are connected in pairs Connection: from the input rectangular waveguide 1 to the direction of the radiation port 2, adjacent rectangular waveguide sections are staggered at their tops along the height direction.

[0017] like figure 2 As shown, a compact waveguide-fed slot antenna designed based on the above mechanism; figure 2 is the relationship table between the volume of the waveguide fed slot antenna and the length of the connected...

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Abstract

The invention discloses a compact type waveguide feed slot antenna. The compact type waveguide feed slot antenna comprises an input rectangular waveguide, a radiation port and at least two connection rectangular waveguide sections which are connected with the input rectangular waveguide and the radiation port; the connection rectangular waveguide sections are connected with one other two by two; and the input rectangular waveguide, the connection rectangular waveguide sections and the radiation port are crossly arranged along the height direction from the input rectangular waveguide to the radiation port. The compact type waveguide feed slot antenna has the beneficial effects that larger discontinuity exists on the connection surfaces of each rectangular waveguide, so that the compact type waveguide feed slot antenna can meet the design requirement on certain reflection coefficients in the frequency band, and the wavelength of each connection rectangular waveguide section is 1 / 6 less than the waveguide wavelength of a main mould TE10 of the connection waveguide section, which is at the highest frequency in the working frequency band.

Description

technical field [0001] The invention relates to a compact waveguide feeding slot antenna, in particular to a compact waveguide feeding slot antenna composed of rectangular waveguides with staggered heights. Background technique [0002] The waveguide-fed slot antenna can realize the radiation towards one side of the large flat plate. The TE10 mode is transmitted in the waveguide, and the broadband L of the waveguide must be greater than half of the wavelength (to transfer energy) and smaller than the wavelength (to suppress the transmission of high-order modes). The slot extending horizontally along the width direction radiates vertically polarized waves in the direction normal to the conductor sheet. The key to this waveguide-fed slot antenna is to achieve impedance matching between the input rectangular waveguide and the slot (ie, the radiation port). The traditional approach is to gradually change the height direction, or add a quarter-wavelength impedance transformer b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q13/06
Inventor 王清源谭宜成吴涛
Owner 成都赛纳赛德科技有限公司