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H-plane-fracture-waveguide terahertz directional coupler

A directional coupler and terahertz technology, applied in the direction of waveguide devices, electrical components, connecting devices, etc., can solve the problems of complex structure of terahertz coupler, difficulty in processing terahertz coupler, and influence on the application of terahertz frequency band, and achieve The effect of highlighting practical features, convenient implementation, and improved processing feasibility

Active Publication Date: 2018-04-13
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] The present invention aims to solve the problems in the prior art that the structure of the terahertz coupler is complex, the output error is large, the processing of the terahertz coupler is difficult, the efficiency of power distribution is low, and the performance is unstable, which affects the practical application in the terahertz frequency band.

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be described clearly and in detail below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention.

[0020] The technical solution of the present invention to solve the above technical problems is:

[0021] In this embodiment, a 3dB coupler working at 370GHz is taken as an example. figure 1 It is a three-dimensional structure diagram of the coupler, which mainly includes two 1 / 4 circular rectangular waveguides and a bent structure at the input and output ports. When either of the two waveguides is defined as the main waveguide, the other is the secondary waveguide. The main and auxiliary waveguides intersect at the center position to form a crack on the H surface of the waveguide, so that the electromagnetic wave input from the main waveguide can be coupled into the auxiliary waveguide through the...

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Abstract

The invention makes a request of protection of an H-plane-fracture-waveguide terahertz directional coupler and relates to a terahertz circuit unit assembly. A core coupling region of the coupler is formed by two one-quarter-circular-ring rectangular waveguides; one waveguide serves as a main waveguide and the other waveguide serves as an auxiliary waveguide; and the two waveguides are intersectedat the middle position of one side of a narrow edge to form a fracture with an H-plane waveguide. Specially-shaped bending structures are connected to the two ends of the main waveguide and the auxiliary waveguide, so that a testing device or another device is connected with an input port and an output port of the coupler. The four ports are arranged at the centers of four planes of the square. The coupler that has a simple structure and is implemented conveniently and designed ingeniously has excellent practical performance and is improved well; and thus the couple is suitable for large-scalepopularization and application.

Description

Technical field [0001] The invention belongs to a terahertz circuit unit assembly, and specifically, is a H-plane slit waveguide terahertz directional coupler. Background technique [0002] Terahertz radiation usually refers to electromagnetic radiation with a frequency between microwave and infrared bands. It is a special region in the electromagnetic spectrum that transitions from electronics to photonics, and its frequency ranges from 0.1 to 10 THz. The long-wave band of the terahertz wave coincides with the sub-millimeter wave band, and its development mainly depends on the science and technology of electronics; while the short-wave band and the far-infrared wave band coincide, its development mainly depends on the science and technology of photonics. It can be seen that the terahertz wave is the direction of macro electronics The transitional frequency bands of micro-sights occupies a very special place in the electromagnetic spectrum. Due to its special location, terahertz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/18
CPCH01P5/18
Inventor 潘武承皓李选尹霞
Owner CHONGQING UNIV OF POSTS & TELECOMM
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