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Method for manufacturing quartz circuit with mixing function for high-frequency microwave remote sensing

A high-frequency microwave and functional circuit technology, applied in the direction of electrical components, impedance networks, etc., can solve the problems of easy deformation, low circuit precision, high loss, etc., and achieve the effect of low loss, high circuit precision and high hardness

Inactive Publication Date: 2011-09-07
NAT SATELLITE METEOROLOGICAL CENT
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, with the improvement of the operating frequency of microwave devices, the microstrip line structure based on polytetrafluoroethylene dielectric has defects such as high loss, easy deformation, and low precision of the circuit made by chemical corrosion (the highest circuit precision is 20 μm), and low precision of the manual cutting circuit. It is no longer suitable for various circuits above 100GHz

Method used

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  • Method for manufacturing quartz circuit with mixing function for high-frequency microwave remote sensing
  • Method for manufacturing quartz circuit with mixing function for high-frequency microwave remote sensing
  • Method for manufacturing quartz circuit with mixing function for high-frequency microwave remote sensing

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Embodiment

[0028] A method for preparing a quartz circuit with a mixing function suitable for high-frequency microwave remote sensing, and its processing process is as follows figure 1 Shown:

[0029] 1) Make a quartz square piece of 40mm*40mm*0.5mm, and cut one side of it as the circuit surface; then use ultrasonic cleaning, put the square piece of quartz in a beaker, and pour an alcohol solution with a concentration of 60% into the beaker , and then place the beaker in an ultrasonic oscillation pool filled with water to clean the dirt and greasy surface of the quartz sheet;

[0030] Then use the magnetron sputtering table to sequentially sputter a 0.01 μm cadmium metal layer and a 0.1 μm gold metal layer on the polished surface of the quartz square as the adhesion layer and conductive layer of electroplating gold respectively;

[0031] 2) Apply photoresist on the gold metal layer, use the mask plate of the circuit to expose and develop the pattern, and form such as image 3 The litho...

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Abstract

The invention relates to a method for manufacturing a quartz circuit with a mixing function for high-frequency microwave remote sensing, and in particular relates to a method for manufacturing a quartz circuit with a mixing function for MMW (millimeter wave) and submillimeter wave sensing, belonging to the key technical field for realizing the high-frequency microwave remote sensing. In the method, the working efficiency of a circuit which is manufactured by quartz materials is applied to 1000GHz; the loss is low, the hardness is large, the circuit accuracy is high, the lot sizing is convenient and the consistency is good; and because abundant meteorological information is contained in the MMW and submillimeter wave frequency ranges, a microwave instrument working in the frequency ranges is required to detect. The method is utilized to realize the frequency conversion function of a radio frequency front end, thus realizing acquisition of the meteorological information contained in thehigh-frequency range.

Description

technical field [0001] The invention relates to a preparation method of a quartz circuit with a frequency mixing function suitable for high-frequency microwave remote sensing, in particular to a preparation method of a quartz circuit with a frequency mixing function suitable for millimeter-wave and submillimeter-wave remote sensing, and belongs to the key technical field of high-frequency microwave remote sensing. Background technique [0002] With the further development of the demand for meteorological detection information, the microwave detection frequency of meteorological satellites is also increasing. Since there is no low-noise amplifier available in the submillimeter wave frequency band, only direct mixing and double-sideband reception can be used. Therefore, it is particularly important to design a mixer circuit with low noise temperature and low conversion loss. [0003] In the microwave and millimeter wave bands, polytetrafluoroethylene medium is widely used as ...

Claims

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Application Information

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IPC IPC(8): H03H3/02
Inventor 安大伟
Owner NAT SATELLITE METEOROLOGICAL CENT