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Tunable terahertz waveguide filter based on bimorph thermal actuator

A waveguide filter and actuator technology, applied in the field of tunable terahertz waveguide filters, can solve the problems of unfavorable IC process integration, unsuitable for small receivers, large filter insertion loss, etc., and achieve good application prospects and tuning range. Wide, high frequency effect

Inactive Publication Date: 2015-12-16
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Traditional reconfigurable filters are based on coaxial lines or microstrip lines, fabricated on printed circuit boards, bulky, unfavorable for IC process integration and limited to below submillimeter wave frequencies
In addition, traditional adjustable resonant frequency filters generally use PIN diode switches or FET switches to achieve adjustable filter frequency, and these switches require a large number of bias circuits, which makes the filter have large insertion loss and large size, which is not suitable for small Receiver front-end applications

Method used

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  • Tunable terahertz waveguide filter based on bimorph thermal actuator
  • Tunable terahertz waveguide filter based on bimorph thermal actuator
  • Tunable terahertz waveguide filter based on bimorph thermal actuator

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the drawings and specific embodiments:

[0035] Such as figure 1 , Picture 12 with Figure 13 As shown, an adjustable terahertz waveguide filter based on a double-layer bending thermal actuator of the present invention includes an E-plane longitudinal diaphragm 1, a double-layer bending thermal actuator 2 and a rectangular waveguide 3. The rectangular waveguide 3 includes a lower cavity The body 301 and the upper cavity 302, the lower cavity 301 and the upper cavity 302 are assembled together by vacuum lead welding. There is an inner for installing the E-side longitudinal diaphragm 1 and the double-layer bending thermal actuator 2 between them. Cavity, the end face of the inner cavity is a rectangle with a size of a×b, the side length in the vertical direction is a, and the length in the horizontal direction is b, and b Picture 12 It is a schematic diagram of the tunable terahertz waveguide filter of...

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Abstract

The invention discloses a tunable terahertz waveguide filter based on a bimorph thermal actuator. The tunable terahertz waveguide filter comprises an E surface longitudinal diaphragm, the bimorph thermal actuator and a rectangular waveguide, wherein the E surface longitudinal diaphragm is horizontally installed in the middle of the inner cavity of the rectangular waveguide; and the bimorph thermal actuator is horizontally installed at the bottom of the inner cavity of the rectangular waveguide and positioned below the E surface longitudinal diaphragm. The E surface longitudinal diaphragm and the bimorph thermal actuator are installed inside the inner cavity of the rectangular waveguide, so that the tunable terahertz waveguide filter has the advantages of high working frequency, wide tuning range, easiness in manufacturing, strong universality and the like and has a good application prospect in a terahertz system.

Description

Technical field [0001] The invention belongs to the technical field of terahertz passive devices, and specifically relates to an adjustable terahertz waveguide filter based on a double-layer bending thermal actuator. Background technique [0002] Terahertz waves (THz) generally refer to electromagnetic radiation waves with a frequency in the range of 0.1 to 10 THz (wavelength from 3 mm to 30 μm). It coincides with the millimeter wave in the long wave band, and coincides with the infrared wave in the short wave band. It can be seen that the terahertz wave occupies a very special position in the electromagnetic wave spectrum, and its research has extremely important academic value and application prospects. Wide attention from various countries. It has great scientific value and broad application prospects in object imaging, environmental monitoring, radio astronomy, broadband mobile communications, especially in military fields such as satellite communications and military radars...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/208
Inventor 胡江郑中万朱侗屈晓敏刘双宣祖好张勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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