Compact three-port network of which side faces are communicated with one another

A three-port, compact technology, applied in the direction of connection devices, waveguide devices, electrical components, etc., can solve the problems of complex matching circuit structure, narrow bandwidth, large volume, etc., achieve obvious advantages, improve modeling optimization calculation efficiency Effect

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

[0003] The existing matching circuit has complex structure, large volume, and narrow bandwidth, especially in rectangular waveguides, single-ridge rectangular waveguides, double-ridge rectangular waveguides and four-ridge rectangular waveguides, circular waveguides or elliptical waveguides, single-ridge circular waveguides or elliptical waveguides, In the bending connection of double ridge circular waveguide or elliptical waveguide, and four ridge circular waveguide or elliptical waveguide

Method used

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  • Compact three-port network of which side faces are communicated with one another
  • Compact three-port network of which side faces are communicated with one another
  • Compact three-port network of which side faces are communicated with one another

Examples

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Embodiment 1

[0038] Such as Figure 1a and Figure 1b shown.

[0039] A compact three-port network, comprising at least three transmission lines 2, and an electromagnetic channel 3; the two ends of the electromagnetic channel 3 are respectively a part of a plane A and a plane B; One of the two end faces of the channel 3 is connected; the electromagnetic channel 3 is formed by a branch, and the electromagnetic wave branch is formed by five through holes 31 communicated along the Y direction;

[0040] In order to achieve a compact design, the maximum length t of the electromagnetic channel is less than 0.3 times the wavelength in free space corresponding to the central operating frequency of the compact three-port network.

[0041] The three transmission lines 2 communicate with one of the two end faces of the electromagnetic channel 3 through one cross section thereof. The axes of the three transmission lines 2 are parallel to each other.

[0042] The three transmission lines 2 are all r...

Embodiment 2

[0048] Such as Figure 2a and Figure 2b shown.

[0049] Compared with the implementation example 1, the main difference between this implementation example is that the three transmission lines 2 communicate with one of the two end surfaces of the electromagnetic channel 3 through one side thereof. One of the transmission lines 2 is an input transmission line, and its axis is also parallel to the axes of the other two output transmission lines. The two output transmission lines communicate directly with each other except through the electromagnetic channel 3 .

Embodiment 3

[0051] Such as image 3 and 4 shown.

[0052]This implementation example is a further realization of implementation example 2, and all three transmission lines are single-ridge waveguides, and their working bandwidths are all 12-17 GHz. The three-segment network has a reflection coefficient below -16dB over the full operating bandwidth of all waveguides. The thickness of the electromagnetic channel is 1 mm, which is 0.048 times the wavelength in free space corresponding to the central operating frequency of the compact three-port network.

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Abstract

The invention discloses a compact three-port network. The compact three-port network comprises at least three transmission lines and at least one electromagnetic channel; the two ends faces of each electromagnetic channel are part of a plane A and part of a plane B respectively; each transmission line is communicated with one of the end faces of the electromagnetic channel through one side face ofthe compact three-port network; the electromagnetic channel is composed of at least one branch circuit, and at least one electromagnetic wave branch circuit is composed of at least three through holes 31 which are communicated with one another in the Y direction. The compact three-port network is characterized in that within a short distance, compact broadband matching from one transmission lineto another transmission line can be achieved. The compact three-port network is mainly applied to various communication and radar systems within the bands of microwaves, millimeter waves and terahertzwaves.

Description

technical field [0001] The invention relates to an electromagnetic wave element, in particular to an electromagnetic wave structure for matching and communicating one transmission line with the other two transmission lines. Background technique [0002] In various electromagnetic wave systems, forked connections between transmission lines are ubiquitous. The signal in the transmission line will be reflected due to the parasitic effect introduced by the bifurcation. In order to realize the matching of the compact three-port network, a matching circuit needs to be set on the transmission line. [0003] The existing matching circuit has complex structure, large volume, and narrow bandwidth, especially in rectangular waveguides, single-ridge rectangular waveguides, double-ridge rectangular waveguides and four-ridge rectangular waveguides, circular waveguides or elliptical waveguides, single-ridge circular waveguides or elliptical waveguides, In the bending connection of double...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/19
CPCH01P5/19
Inventor 王清源范巧音
Owner 成都锐烽特科技有限公司
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