Terahertz directional coupler with h-plane slotted waveguide

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, in particular to an H-plane cracked waveguide terahertz directional coupler. Background technique [0002] Terahertz radiation usually refers to electromagnetic radiation with a frequency between the microwave and infrared bands. It is a special area on the electromagnetic spectrum that transitions from electronics to photonics, and its frequency ranges from 0.1 to 10 THz. The long-wave band of terahertz wave overlaps with the submillimeter wave band, and its development mainly depends on electronics science and technology; while the short-wave band and far-infrared wave band overlap, its development mainly relies on photonic science and technology. It can be seen that terahertz wave is the direction of macro electronics The transition frequency band of microphotonics occupies a very special position in the electromagnetic spectrum. Due to its special location, terahertz waves can exhibit man...

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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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