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Terahertz waveguide filter based on dual-mode resonant cavity and design method thereof

A waveguide filter and resonant cavity technology, which is applied in waveguide devices, instruments, optics, etc., can solve the problems of complex structure and low square coefficient, achieve the effect of simple overall structure, increase square coefficient, and reduce the difficulty of device processing

Active Publication Date: 2022-05-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects of complex structure and low square coefficient in the prior art, and provide a terahertz waveguide filter based on a dual-mode resonator and its design method

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  • Terahertz waveguide filter based on dual-mode resonant cavity and design method thereof
  • Terahertz waveguide filter based on dual-mode resonant cavity and design method thereof
  • Terahertz waveguide filter based on dual-mode resonant cavity and design method thereof

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Embodiment Construction

[0043] In order to illustrate the technical solutions and advantages of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] This embodiment provides a transmission mode for TE 101 Mode and TM 110 modes of dual-mode resonators for terahertz waveguide filters, such as Figure 3-Figure 5 As shown, it includes an input waveguide, a first diaphragm, a first resonant cavity, a second diaphragm, a second resonant cavity, a third diaphragm, and an output waveguide arranged in sequence.

[0045] Among them, the input waveguide and the output waveguide are WR-4 standard rectangular waveguides, and the wide side dimensions of the input waveguide, the first resonant cavity, the second resonant cavity, and the output waveguide are the same as 1.092mm; the narrow side dimensions of the input waveguide and the output waveguide are 0.546 mm.

[0046] The central axis of th...

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Abstract

The invention discloses a terahertz waveguide filter based on a dual-mode resonant cavity and a design method thereof, and belongs to the technical field of terahertz solid-state circuits. The filter comprises an input waveguide, a first diaphragm, a first resonant cavity, a second diaphragm, a second resonant cavity, a third diaphragm and an output waveguide which are arranged in sequence, by changing the relative positions of the first resonant cavity, the second resonant cavity and the adjacent diaphragms, an independent and controllable transmission zero point is introduced into an upper stop band or a lower stop band of the filter, the rectangular coefficient of the filter is greatly improved, and the filter has excellent filtering performance; the filter has a very small width-depth ratio, the overall structure is symmetrical about an E plane, the processing difficulty can be effectively reduced, the device yield is improved, and the filter is very suitable for a high-precision and low-cost numerical control milling technology; meanwhile, according to the filter design method provided by the invention, rapid design of the filter can be realized.

Description

technical field [0001] The invention belongs to the technical field of terahertz solid-state circuits, and relates to a terahertz waveguide filter based on a dual-mode resonant cavity and a design method thereof. Background technique [0002] Terahertz waves refer to electromagnetic waves with frequencies ranging from 0.1 THz to 10 THz. Terahertz waves are adjacent to millimeter waves in the long-wave band, and intersect with infrared rays in the short-wave band, and are in the intersection area of ​​macroelectronics and microphotonics. Nowadays, because of its unique advantages in multiple application fields such as object imaging, communication, astronomical observation, and food detection, a scientific research boom of terahertz wave research has formed. [0003] Terahertz waves have many properties that microwave and millimeter waves and visible light do not have, which has attracted the attention of many scientific researchers. The unique properties of terahertz waves...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208H01P11/00G02F1/01
CPCH01P1/208H01P11/007G02F1/01
Inventor 张波丰益年牛中乾胡怡张季聪刘洋陈智樊勇杨晓帆杨晓波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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