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Miniaturized waveguide coaxial conversion device

A technology of coaxial conversion of waveguides and double-ridged waveguides, which can be used in connection devices, waveguide-type devices, electrical components, etc., can solve the problems of increasing the structure size, and achieve the effect of reducing the size and compact structure.

Pending Publication Date: 2019-08-23
SOUTHWEST INST OF APPLIED MAGNETICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As we all know, due to the limitation of the waveguide aperture, as the operating frequency of the waveguide element decreases, its structural size will increase exponentially

Method used

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  • Miniaturized waveguide coaxial conversion device

Examples

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Embodiment 1

[0031] see Figure 1-7 , a miniaturized waveguide coaxial conversion device, this embodiment is an orthogonal structure, including a cavity 1, the cavity 1 is in the shape of a cuboid as a whole, including a front side plate 10 and a rear side plate 12, the cavity 1 A coupling part 2, a slow wave line 3, a first matching ceramic 4 and a second matching ceramic 5 are provided in sequence from left to right, and the structure of the coupling part 2 is as follows image 3 As shown, an inner conductor 6 is included, the lower end of the inner conductor 6 is connected to the slow wave line 3, and the upper end of the inner conductor 6 is connected to an SMA joint 8, and the SMA joint 8 is located outside the cavity 1, The part of the inner conductor 6 close to the upper end is sequentially covered with a meson sleeve 9 and a limit sleeve 7 from the inside to the outside, and a double-ridge waveguide 11 is also arranged in the cavity 1;

[0032] The functional segment of the above ...

Embodiment 2

[0034] One end of the coupling part 2 of this embodiment is located on one side of the cavity 1, which is the termination structure, and the rest is the same as that of the embodiment 1. Figure 8-11 .

Embodiment 3

[0036] Adopt the S-band waveguide miniaturization coaxial conversion design simulation model and simulation result of structure of the present invention, see Figure 12 ;

[0037] The results show that the S-band standard waveguide port size: 72mm×34mm, the waveguide port size after adopting this patented measure: 25mm×11.85mm, length 57mm, matching bandwidth: 1.2GHz@20dB.

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Abstract

The invention discloses a miniaturized waveguide coaxial conversion device, and belongs to the technical field of microwave components. The device comprises a cavity, and a coupling part, a slow waveline, a first matching ceramic and a second matching ceramic are sequentially arranged in the cavity from left to right. The coupling part comprises an inner conductor, wherein the lower end of the inner conductor is connected with the slow wave line, the upper end of the inner conductor is connected with an SMA connector, and the SMA connector is located at the outer side of the cavity. A part, close to the upper end, of the inner conductor is sequentially sleeved with a meson sleeve and a limiting sleeve from inside to outside, and a double-ridge waveguide is further arranged in the cavity.The waveguide coaxial conversion of a double-ridge waveguide and slow wave line structure is adopted, the structure is more compact on the premise that the performance of the waveguide coaxial conversion is ensured, the miniaturization design applied to low-frequency waveguide coaxial conversion is achieved, and the waveguide coaxial conversion device can be applied to a miniaturization complete machine system with the low microwave working frequency (900MHz-20GHz).

Description

technical field [0001] The invention relates to the technical field of microwave components, in particular to a miniaturized waveguide coaxial conversion device. Background technique [0002] As a waveguide (radio frequency) universal waveguide element, the waveguide-to-coaxial conversion device is widely used in the field of conversion of microwave (radio frequency) signals from rectangular waveguides to coaxial transmission links. Compared to microstrip and stripline components, waveguide components have a higher power transfer capacity. With the increasing demand for high power and integration of microwave systems, how to realize the miniaturization design of high waveguide components has become the main research direction of waveguide components. [0003] As we all know, due to the limitation of the waveguide aperture, as the operating frequency of the waveguide element becomes lower, its structural size will increase exponentially. Table 1 shows the corresponding rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/08
CPCH01P5/085
Inventor 蒋运石翟宗民刘峰赖金明
Owner SOUTHWEST INST OF APPLIED MAGNETICS
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