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Waveguide fed slot antenna

A slot antenna and waveguide feeding technology, which is applied in the direction of slot antenna, antenna grounding switch structure connection, circuit, etc., can solve the problems of cost increase, frequency band widening, size increase, etc.

Active Publication Date: 2014-08-06
佛山市朗盛通讯设备有限公司
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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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  • Waveguide fed slot antenna
  • Waveguide fed slot antenna
  • Waveguide fed slot antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] Such as figure 1 , 2 , 3, 4, and 5, figure 1 In it, → represents the length direction, ↑ represents the height direction, and ⊕ represents the width direction from the outside to the inside of the paper.

[0024] In order to make the structure of the present invention more compact, therefore, a waveguide fed slot antenna designed by the present invention includes an input rectangular waveguide 1, a radiation port 2, and at least two connecting rectangular waveguide sections 3 connecting the two, so The connecting rectangular waveguide sections 3 are connected in pairs, and the height of the input rectangular waveguide 1 is smaller than the height of the radiation port 2; the length of the connecting rectangular waveguide section 3 is B, and at the highest frequency of the working frequency band, the connecting rectangular waveguide section 3 The waveguide wavelength C of the TE10 mode, B≤1 / 6C.

[0025] The height of the connecting rectangular waveguide segment 3 co...

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PUM

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Abstract

The invention discloses a waveguide fed slot antenna, which comprises an input rectangular waveguide, a radiation port and at least two connecting rectangular waveguide sections for connecting the input rectangular waveguide and the radiation port; every two connecting rectangular waveguide sections are connected with each other, and the input rectangular waveguide is lower than the radiation port; and the length of each connecting rectangular waveguide section is B, the waveguide wavelength of a TE10 mold of each connecting rectangular waveguide section at the highest frequency of an operating frequency band is C, and B is less than or equal to C / 6. The invention has the advantages that the connecting surface of each rectangular waveguide has high discontinuity, so that the antenna can meet the design requirement for certain reflection coefficients in the frequency range; and the length of each connecting rectangular waveguide section is smaller than 1 / 6 of the waveguide wavelength of the master mold TE10 of the connecting waveguide section at the highest working frequency.

Description

technical field [0001] The invention relates to a waveguide feeding slot antenna, in particular to a compact waveguide feeding slot antenna composed of high and short rectangular waveguides. 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 between the two, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q13/10
Inventor 王清源谭宜成吴涛
Owner 佛山市朗盛通讯设备有限公司