Single-and-double-ridge rectangular waveguide transmission line adaptor

A rectangular waveguide and transmission line technology, applied in the field of compact transmission line adapters, can solve the problems of large size and long wavelength of the adapter, and achieve the effect of improving computing efficiency

Inactive Publication Date: 2018-08-21
成都锐烽特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the wavelength of the transmission line of general microwave frequency is relatively long, especially in the low-frequency microwave frequency band, the conventional technology leads to a relatively large volume of the adapter

Method used

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  • Single-and-double-ridge rectangular waveguide transmission line adaptor
  • Single-and-double-ridge rectangular waveguide transmission line adaptor
  • Single-and-double-ridge rectangular waveguide transmission line adaptor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] like Figures 1 to 3 , Figures 4a~4o , Figures 5a to 5d shown.

[0073] Figures 4a~4o A cross-sectional view of an existing transmission line.

[0074] A single and double ridge rectangular waveguide transmission line adapter comprises a transmission line 2 , another transmission line 2 and an electromagnetic wave channel 3 . Both ends of the electromagnetic wave channel 3 are part of a plane A and a plane B, respectively. One end of each transmission line 2 communicates with one end of the electromagnetic wave channel 3 .

[0075] The transmission line adapter is very compact: the maximum length t of the microwave channel is less than 0.2 times the wavelength in free space corresponding to the central operating frequency of the microwave matching structure.

[0076] The transmission lines 2 are all single-ridge rectangular waveguides; the metal ridge 22 of the one transmission line 2 is connected to the bottom of the single-ridge rectangular waveguide transmis...

Embodiment 2

[0082] like Figure 6-8 shown.

[0083] The difference between this implementation example and implementation example 1 is only:

[0084] The one transmission line 2 is a cross waveguide, and the other transmission line is a quadrilateral square waveguide.

[0085] The one electromagnetic wave channel 3 communicates with one end surface of the other electromagnetic wave channel 3 through one end surface thereof.

[0086] The two electromagnetic wave channels 3 are mirror symmetrical up and down. The cross-sectional area of ​​the electromagnetic wave channel 3 can be designed to sequentially decrease, increase, decrease and decrease from the center to the edge. The transmission line connector makes the reflection coefficient of vertically polarized electromagnetic waves lower than -20 dB in the frequency band of 19.6-23.3 GHz in the length of 1.48 mm. At the same time, the reflection coefficient of the horizontally polarized electromagnetic wave is made lower than -20dB. A...

Embodiment 3

[0088] like Figure 9-11 shown.

[0089] The main difference between this implementation example and implementation example 2 is only:

[0090] The one transmission line 2 is a single-ridged rectangular waveguide, and the other transmission line 2 is a double-ridged rectangular waveguide. The cross-sectional area of ​​the electromagnetic channel 3 increases, increases, increases, increases, decreases, decreases, and decreases sequentially from inside to outside, so that the transmission line connector is in the range of 15 to 45 GHz within the length of 0.42 mm. Make the reflection coefficient of vertically polarized electromagnetic waves lower than -30dB. According to our careful inquiry, similar conventional techniques have not been published.

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PUM

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Abstract

The invention discloses a single-and-double-ridge rectangular waveguide transmission line adaptor. Multiple rectangular through holes or through holes in other shapes are adopted to be communicated with one another to constitute electromagnetic wave channels to be matched with various transmission lines of different structures. One transmission line is provided with a single-ridge rectangular waveguide, and the metal ridge of the single-ridge rectangular waveguide is connected with the bottom of the single-ridge rectangular waveguide transmission line; another transmission line is provided with a double-ridge rectangular waveguide, the two metal ridges of the double-ridge rectangular waveguide are connected with the bottom and the top of the double-ridge rectangular waveguide transmissionline respectively. Compared with existing similar schemes, the modeling and optimizing calculation efficiency of the single-and-double-ridge rectangular waveguide transmission line adaptor can be obviously improved. The size of the transmission line adaptor is smaller, and the working bandwidth is larger. The single-and-double-ridge rectangular waveguide transmission line adaptor is mainly used for all communication and radar systems within bands of various electromagnetic waves, millimeter waves and terahertz waves.

Description

technical field [0001] The present invention relates to an electromagnetic wave element, in particular to a compact transmission line adapter. Background technique [0002] In various electromagnetic wave systems, the switching problem of various transmission lines is common. The traditional transfer between different transmission lines often adopts multi-section transmission line matching method. Each transmission line is used as the first stage of the impedance converter, and its length is 1 / 4 of the wavelength of the waveguide. Due to the relatively long wavelength of the transmission line of the general microwave frequency, especially in the low frequency microwave frequency band, the volume of the adapter is relatively large due to the conventional technology. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is a compact transmission line adapter, which has simpler structure, more convenient processing and wider operating ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/10
CPCH01P5/10
Inventor 王清源范巧音
Owner 成都锐烽特科技有限公司
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