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Microwave Radio Frequency PCB - High Frequency board manufacturers
2019-09-12
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Author:ipcb      Share

The 24GHz microwave radar sensor is widely used in the fields of vehicle active safety, intelligent transportation, safety preparedness and protection, industrial application and uav collision prevention.As a key reproductive device of radar sensor, receiving antenna plays a "throat" role in the radar sensor.On the other hand, there is a need to cover suitable areas.According to the author's preset experience, the 24GHz receiving antenna modes commonly used by domestic and foreign manufacturers include microstrip array receiving antenna, horn receiving antenna, media substrate integrated waveguide receiving antenna (SIW) and lens receiving antenna.Considering the problem of radar sensor size and manufacture, the most popular receiving antenna in commercial field is microstrip receiving antenna.The microstrip receiving antenna is printed on High frequency PCB. With the help of the mature PCB processing technology, the preset manufacturer can reduce the cost extremely.


The polarization form is a close parameter variable representing electromagnetic wave, which is voted by radar receiving antenna.Wire polarization and circular polarization are commonly used polarization forms.Linear polarization is divided into lead polarization, horizontal polarization and oblique polarization.Different polarization forms of radar receiving antennas will cause different amplitude and phase properties of the target echo, and further forward will affect the sensitivity of radar sounding observation.Because of this, the special properties of scattering have the guiding significance of closing and tightening the radar receiving antenna preset.In this paper, the special scattering properties of high voltage line are studied in the application environment of electric unmanned aerial vehicle (uav).In order to explore the special properties of scattering of power lines to different line-polarized incident waves, the special properties of scattering of high-voltage lines at 24GHz are analyzed by means of simulation.


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