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A 45-degree angle millimeter-wave differential line-to-siw structure

A differential line and millimeter wave technology, applied in waveguides, waveguide devices, circuits, etc., can solve the problems of common mode noise deterioration, insertion loss increase, and device volume increase, so as to improve the rejection ratio and reduce insertion loss Effect

Active Publication Date: 2021-12-10
博微太赫兹信息科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical engineering applications, the RF front-end system often has a certain angle between the input end of the differential line and the output end of the RF front-end, which will cause deterioration of common-mode noise, increase in insertion loss, and increase in device volume to a certain extent. Large and other situations increase the difficulty of designing the corresponding matching structure

Method used

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  • A 45-degree angle millimeter-wave differential line-to-siw structure
  • A 45-degree angle millimeter-wave differential line-to-siw structure

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 as shown, figure 1 It is the structural diagram of this embodiment of the 45° angle millimeter wave differential line to SIW structure. The 45° angle millimeter wave differential line to SIW structure in the present invention includes a differential line transmission part 101, a differential line transition and gradual part 102, and a TE 20 Die to TE 10 Mode SIW part 103, common mode rejection ratio metal via 104, phase shift metal via 105, TE 10 Die SIW part 106, metal ground 107, dielectric plate 108.

[0020] The differential line transmission part 101 communicates with the TE through the differential line transition part 102 20 Die to TE 10 The mode SIW part 103 is cascaded, and a pair of microstrip lines in the differential line transition part 102 are distributed at an angle of 45°, and are respectively connected to the TE 20 Die to TE 10 The mode SIW part 103 is vertical, mainly to facilitate the electric field transmitted along the 45° cor...

Embodiment 2

[0028] On the basis of Embodiment 1, the 45° angle millimeter-wave differential line-to-SIW structure in this embodiment includes a first conversion structure 1 and a second conversion structure 2, and the first conversion structure 1 and the second conversion structure The structure 2 is set adjacent to each other, realizing the layout of a pair of adjacent millimeter-wave differential line-to-SIW structures with a 45° rotation angle, such as figure 2 As shown, in this embodiment, the second conversion structure 2 shares a row of metal through holes with the first conversion structure 1, which does not affect the performance, but also achieves the purpose of saving space, and solves the problem of bulky structure, bulky Big question. The difference between the first conversion structure 1 and the second conversion structure 2 lies in: the input position of the differential line pair and the TE 10 The output positions of the modulo SIW are different, and the transition struc...

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Abstract

The invention discloses a 45-degree angle millimeter wave differential line to SIW structure, including a differential line transmission section, a differential line transition section, a common mode rejection ratio section, and a TE 20 Die to TE 10 Die SIW Department, TE 10 Die SIW part, metal ground, dielectric board, the differential line transmission part, the differential line transition part, the TE 20 Die to TE 10 Die SIW part, the TE 10 The mode SIW part is connected in sequence, the differential line transmission part, the differential line transition and gradual change part, the common mode rejection ratio part, the TE 20 Die to TE 10 Die SIW part, the TE 10 The SIW part of the mold and the metal ground are both arranged on the dielectric board; the present invention adopts the transition structure of the differential line, the SIW corner design of the transition part with the differential line and the TE of the SIW structure 20 Mode to TE 10 The design of the mode realizes the differential transmission line input with a 45° rotation angle and the vertical output of the RF front end in the structure, realizes a 180° phase shift in performance, improves the rejection ratio of common mode noise, and reduces the insertion loss.

Description

technical field [0001] The invention relates to the technical field of millimeter wave conversion structures, in particular to a 45-degree corner millimeter wave differential line-to-SIW structure. Background technique [0002] In recent years, millimeter wave technology has been more and more applied, including 5G mobile communication technology, human body security inspection, medical imaging, millimeter wave radar detection, military millimeter wave strategic communication and other fields, playing a vital role in civilian and military fields. important role. [0003] Substrate Integrated Waveguide (SIW) is a waveguide structure realized by using a metallized through-hole array on a low-loss dielectric substrate with metal layers on the upper and lower bottom surfaces. It has low insertion loss, high Q value, and easy Integration and other advantages have been widely used in millimeter wave systems. The differential line transmission line is a pair of symmetrical transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/10
CPCH01P3/10
Inventor 陈会永姚武生顾大勇何建安王晓鹏孙泽月王健陈林涂昊
Owner 博微太赫兹信息科技有限公司