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Micro-strip interdigital circuit board for microwave non-thermal effect research

A thermal effect, circuit board technology, applied at the intersection of microwave technology and chemical technology

Inactive Publication Date: 2015-05-20
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Other scientists are convinced that microwave athermal effects do exist, although they have not been fully explained so far
Whether microwave athermal effect exists or not has not been settled
At present, the experimental device generally used for non-thermal effect research is a household microwave oven or modified from a household microwave oven, but due to its own various conditions, it brings great limitations to the research of microwave non-thermal effect.

Method used

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  • Micro-strip interdigital circuit board for microwave non-thermal effect research
  • Micro-strip interdigital circuit board for microwave non-thermal effect research
  • Micro-strip interdigital circuit board for microwave non-thermal effect research

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The overall structure of the microstrip interdigitated circuit board is as follows: Figure 1-3 As shown, the microstrip interdigitated circuit board is printed on a printed circuit board. The printed circuit board consists of a microstrip interdigitated circuit layer I composed of left and right feed sections 3, 3', left and right impedance transformation branches 2, 2', left and right interdigitated units 1, 1', and a dielectric layer made of polytetrafluoroethylene. The dielectric layer II of the printed circuit board is made of polytetrafluoroethylene material with a relative permittivity of 2.65 and a thickness of 2mm.

[0029] Such as image 3 As shown, the structural parameters of the microstrip interdigitated circuit layer I are obtained through numerical simulation optimization, and the dimensions of each part are:

[0030] The length of the left and right feeding sections 3 and 3' is a=15mm, the width is b=5.5mm, the characteristic impedance is 50 ohms, the l...

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Abstract

The invention provides a micro-strip interdigital circuit board for microwave non-thermal effect research, and belongs to the crossing field of microwave technology and chemical technology. The micro-strip interdigital circuit board is composed of a micro-strip interdigital circuit layer (I), a dielectric layer (II) and a metal ground layer (III), wherein the micro-strip interdigital circuit layer (I) is composed of a left feed part, a right feed part, a left impedance conversion branchknot, a right impedance conversion branchknot, left micro-strip fingers and right micro-strip fingers, the dielectric layer (II) is made of polytetrafluoroethylene, and a metal layer is coated on the metal ground layer (III). The micro-strip interdigital circuit board for the microwave non-thermal effect research is characterized in that two ends of the left feed part and the right feed part are similar in forms of wrists, the left impedance conversion branchknot and the right impedance conversion branchknot are similar in forms of palms, the middle portion of the left micro-strip fingers and the right micro-strip fingers are similar in forms of fingers, the left feed part is connected with the left impedance conversion branchknot, and the right feed part is connected with the right impedance conversion branchknot. The micro-strip fingers are the same in length and width, gaps between every two fingers are the same, gaps between left finger roots and right finger tips and gaps between left finger tips and right finger roots are the same, and corners of micro-strip transmission lines are all made into circular arc structures. The micro-strip interdigital circuit board for the microwave non-thermal effect research has the advantages of being simple and convenient to manufacture, low in cost, larger in generated electric field intensity compared with electric field intensity obtained through other methods in the same power.

Description

technical field [0001] The invention belongs to the intersecting field of microwave technology and chemical technology, and in particular relates to a microstrip interdigitated circuit board used for research on microwave non-thermal effect. Background technique [0002] After decades of development, microwave technology has become a relatively mature subject, and has been widely used in radar, communication, electronic countermeasures, industrial production and scientific research. Since 1986, Richard Gedye's research group and Raymond J.Giguere successfully used microwave radiation for the first time to irradiate the SN 2 The nucleophilic substitution reaction increased the reaction rate by 1240 times, and the yield also increased to varying degrees. At the beginning, microwave energy showed great development prospects in chemistry and chemical engineering. More and more scholars began to study microwave in chemical synthesis, extraction and catalysis. aspects of applicat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K1/02
Inventor 田文艳郑秀萍董增寿郭一娜李晋红
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY