Dual-band lossless dielectric constant measurement sensor based on spiral resonator

A technology of helical resonator and measurement sensor, which is applied in measurement devices, measurement of electrical variables, measurement of resistance/reactance/impedance, etc., can solve the problems of microwave sensor longitudinal sensitivity limitation, large thickness influence, small quality factor, etc. Longitudinal sensitivity, large quality factor, enhanced coupling effect

Active Publication Date: 2021-11-12
ANHUI NORMAL UNIV
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Problems solved by technology

[0003] In practical applications, microwave sensors based on SRR or CSRR are mostly used to characterize the dielectric constant and dielectric loss tangent of materials. However, when this type of microwave sensor is loaded with samples of different dielectric materials, the test results are affected by the samples. The thickness of the microwave sensor has a great influence, so when the thickness of the

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  • Dual-band lossless dielectric constant measurement sensor based on spiral resonator
  • Dual-band lossless dielectric constant measurement sensor based on spiral resonator
  • Dual-band lossless dielectric constant measurement sensor based on spiral resonator

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Embodiment Construction

[0030] The present invention is a dual-band non-destructive dielectric constant measurement sensor based on a spiral resonator. The present invention will be described in more detail below in conjunction with the accompanying drawings and technical solutions.

[0031] Such as figure 1 As shown, it is a three-dimensional structural diagram of a dual-band lossless dielectric constant measurement sensor based on a spiral resonator according to the present invention. As shown in the figure, it includes a ground layer (3), a dielectric layer (2), a metal layer from bottom to top SMD layer (1); the ground layer is made of conductive materials such as gold, silver, copper, etc., with a thickness of 0.017mm. Two spiral structures are etched on the ground layer by means of grooves. The size of the grooved metal spiral structure on the left is 6mm×6mm, the width of each grooved rectangle is 0.5mm, the distance between adjacent grooved rectangles is 0.5mm, the size of the grooved metal s...

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Abstract

The invention discloses a dual-band lossless dielectric constant measurement sensor based on a spiral resonator, the sensor is a two-port device, the sensor is composed of a dielectric layer, a metal patch layer and a grounding layer, the sensor generates two resonance points in a frequency range of 1GHz-4GHz, the measurement of the dielectric constant and the dielectric loss angle tangent at the two frequency bands of 1.0 GHz-2.0 GHz and 2.1 GHz-3.1 GHz can be realized; and the invention has the advantages of simple structure, high Q value, high sensitivity, low processing difficulty and low cost.

Description

technical field [0001] The invention belongs to the technical field of microwave sensors, in particular to a dual-band non-destructive dielectric constant measurement sensor based on a spiral resonator. Background technique [0002] The dielectric constant refers to the ability of the electrolyte to bind charges. The larger the dielectric constant, the stronger the ability to bind charges, and the better the insulation performance of the material; The energy lost under heat; with the rapid development of microwave technology, the selection of dielectric materials is becoming more and more important in practical applications, and the dielectric constant and dielectric loss are two important parameters to measure the performance of dielectric materials; for example, the manufacture of capacitors The material of the material requires the dielectric constant to be as large as possible and the dielectric loss to be as small as possible; on the contrary, the material for manufactu...

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Application Information

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IPC IPC(8): G01R27/26
CPCG01R27/2623
Inventor 刘小明张丹俞硕王晔甘露王海洋
Owner ANHUI NORMAL UNIV
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