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Silicon-based near-field millimeter wave biomedical dielectric oscillation sensor

A biomedical and sensor technology, applied in the field of silicon-based near-field millimeter-wave biomedical dielectric oscillation sensors, can solve the problems of difficult miniaturization design, bulky optical equipment and test bench, and change the properties of the materials to be tested to achieve high sensitivity , reduce volume and cost, improve sensitivity and accuracy

Pending Publication Date: 2022-08-09
WUHAN UNIV
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Problems solved by technology

[0002] In biological and medical diagnosis, the laboratory-on-chip (lab-on-chip) system is often used for detection and sensing, and the laboratory-on-chip also relies on optical measurement technology, although optical measurement technology can provide more accurate visual results, but The measurement system in optical measurement technology is mainly composed of bulky optical equipment and test benches, it is difficult to truly achieve the goal of miniaturization design in biomedical real-time detection
At the same time, optical measurement technology also requires biological markers, that is, fluorescent markers, and these markers have the potential to change the properties of the materials to be tested

Method used

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  • Silicon-based near-field millimeter wave biomedical dielectric oscillation sensor
  • Silicon-based near-field millimeter wave biomedical dielectric oscillation sensor
  • Silicon-based near-field millimeter wave biomedical dielectric oscillation sensor

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Embodiment Construction

[0040] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

[0041] The flowcharts shown in the figures are for illustration only, and do not necessarily include all contents and operations / steps, nor do they have to be performed in the order described. For example, some operations / steps can also be decomposed, combined or partially combined, so the actual execution order may be changed a...

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Abstract

The invention discloses a silicon-based near-field millimeter wave biomedical dielectric oscillation sensor, and relates to the technical field of sensor chips, and the sensor comprises a sensing oscillation circuit which comprises a parallel resonance branch and a negative resistance generation branch; the parallel resonance branch comprises a near-field sensing capacitor and two inductors L, and the two ends of the near-field sensing capacitor are connected with a forward power supply VDD through the inductors L respectively; the negative resistance generation branch is connected with one end, far away from the positive power supply VDD, of each inductor L; meanwhile, if the near-field sensing capacitor is in a detection state, the sensing oscillation circuit is configured to generate corresponding oscillation frequencies according to different objects to be detected so as to determine the dielectric constant under the current oscillation frequency. The invention has the characteristics of large output swing, low power consumption, simple design, low cost and small volume.

Description

technical field [0001] The present application relates to the technical field of sensor chips, in particular to a silicon-based near-field millimeter-wave biomedical dielectric oscillation sensor. Background technique [0002] In biological and medical diagnostics, lab-on-chip systems are often used for detection and sensing, and lab-on-chip also relies on optical measurement technology, although optical measurement technology can provide more accurate visual results, but The measurement system in the optical measurement technology is mainly composed of cumbersome optical equipment and test benches, and it is difficult to achieve the goal of miniaturization design in real-time biomedical detection. At the same time, biological markers, ie, fluorescent markers, are also required in the optical measurement technology, and these markers have the potential to change the properties of the materials to be assayed. SUMMARY OF THE INVENTION [0003] In order to solve at least one...

Claims

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Application Information

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IPC IPC(8): G01N27/22
CPCG01N27/221
Inventor 何进郑吴家锐纪忠玲邱涛周江桥
Owner WUHAN UNIV
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