Broadband arbitrary-power-ratio waveguide power divider

A power division ratio and waveguide technology, applied in the microwave field, can solve problems such as the deterioration of the amplitude flatness of the branch of the power splitter, limit the use range of the waveguide power splitter, and reduce the bandwidth, etc., to achieve increased bandwidth, simple structure, and easy processing Effect

Inactive Publication Date: 2017-06-16
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the methods or models given in these documents or monographs are all based on narrowband, and the bandwidth does not exceed 10%. When the bandwidth is further increased, the amplitude flatness of the power splitter branch is significantly deteriorated, especially the branch power distribution difference When it is larger, the available bandwidth will be further reduced, which severely limits the scope of use of waveguide power splitters

Method used

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  • Broadband arbitrary-power-ratio waveguide power divider
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  • Broadband arbitrary-power-ratio waveguide power divider

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Embodiment 1

[0041] Such as image 3 , Figure 5 , Figure 7 and Figure 8 As shown, the width of the rectangular waveguide 1, the rectangular waveguide 2 of the left branch, and the rectangular waveguide 3 of the right branch are all 22.86mm in width and 10.16mm in height; when the power distribution ratio of the left and right branches is 2:1, and The length and width of the metal body 4 on the left side of the road and the metal body on the right side of the road are both 1.8mm, and the height is 10.16mm; The centerline of the Helu rectangular waveguide 1 is 5.5mm; the right branch metal body 6 is a cuboid with a length of 11.6mm, a width of 1mm, and a height of 10.16mm, and the distance from the centerline of the Helu rectangular waveguide 1 is 1.8mm. From Figure 7 and Figure 8 It can be seen from the simulation results that the S11 parameter is less than -15dB in the frequency range of 8GHz to 11.7GHz, less than -20dB in the frequency range of 8.5GHz to 10.5GHz, and the power a...

Embodiment 2

[0043] Such as Figure 4 , Figure 6 , Figure 9 and Figure 10 As shown, the width of the rectangular waveguide 1, the rectangular waveguide 2 of the left branch, and the rectangular waveguide 3 of the right branch are all 22.86mm in width and 10.16mm in height; when the power distribution ratio of the left and right branches is 2:1, and The length and width of the metal body 4 on the left side of the road and the metal body 5 on the right side of the road are both 1.8mm and 10.16mm in height; the metal body 6 in the left branch is a cylinder with a radius of 0.8mm and a height of 10.16mm. The centerline of waveguide 1 is 3.5mm, and the distance to the side of left branch rectangular waveguide 2 far away from Helu rectangular waveguide 1 is 3.5mm; the right branch metal body 7 is a cylinder with a radius of 0.8mm and a height of 10.16mm. The centerline of the sum-way rectangular waveguide 1 is 2.4 mm, and the distance from the side of the right-way rectangular waveguide 3 ...

Embodiment 3

[0045] Such as Figure 4 , Figure 6 , Figure 11 and Figure 12 As shown, the width of the rectangular waveguide 1, the rectangular waveguide 2 of the left branch, and the rectangular waveguide 3 of the right branch are all 22.86mm in width and 10.16mm in height; when the power distribution ratio of the left and right branches is 4:1, and The length and width of the metal body 4 on the left side of the road and the metal body 5 on the right side of the road are both 1.8mm and 10.16mm in height; the metal body 6 in the left branch is a cylinder with a radius of 0.8mm and a height of 10.16mm. The center line of waveguide 1 is 3.5mm, and the distance to the side of left branch rectangular waveguide 2 far away from Helu rectangular waveguide 1 is 4.2mm; the right branch metal body 7 is a cylinder with a radius of 0.8mm and a height of 10.16mm. The center line of the sum-way rectangular waveguide 1 is 4 mm, and the distance from the side of the right-way rectangular waveguide 3...

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Abstract

The invention provides a broadband arbitrary-power-ratio waveguide power divider, which comprises a join-path rectangular waveguide (1), a left branch rectangular waveguide (2), a right branch rectangular waveguide (3), a join-path left metal body (4), a join-path right metal body (5), a left branch metal body (6) and a right branch metal body (7). By adding a metal body to the inner portion of an existing power divider, the waveguide power divider is simple in structure and convenient to process; meanwhile, bandwidth of the waveguide power divider is improved obviously, and bandwidth less than 10% can be expanded to bandwidth more than 40%; and arbitrary power ratio in broadband can be realized, thereby ensuring that branch amplitude unbalance degree is within +/- 0.15 dB, and phase unbalance degree is within +/-15 degrees.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a waveguide power divider with a wideband arbitrary power division ratio. Background technique [0002] The waveguide power splitter is an important microwave passive device, which is widely used in communication and radar antenna feeder network and other fields. Its function is to divide the microwave input power of one channel into two or One or more channels of microwave power are superimposed and output from one channel, which has the advantages of small loss and large power capacity. [0003] The design method of the waveguide power splitter has been introduced in many literatures or professional books, such as "Synthesis of a compound T -junction for a two-way splitter with arbitrary power ratio" uses the equivalent circuit model to design a rectangular waveguide power splitter with arbitrary power ratio; in December 2007, the monograph "Phased Array Radar Feeder" publi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12
CPCH01P5/12
Inventor 方峪枫刘远玄鄢学全
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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