77GHz millimeter wave radio frequency device and using method thereof

A radio frequency device, millimeter wave technology, applied in the direction of reflection/re-radiation of radio waves, instruments, utilization of re-radiation, etc.

Inactive Publication Date: 2012-08-01
苏州煜瑛微电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Table 1 Comparison of advantages and disadvantages of different detection methods

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  • 77GHz millimeter wave radio frequency device and using method thereof
  • 77GHz millimeter wave radio frequency device and using method thereof
  • 77GHz millimeter wave radio frequency device and using method thereof

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Embodiment Construction

[0064] The 77GHz millimeter wave radio frequency device of the present invention includes a digital signal processor, a direct digital frequency synthesizer, an upconverter, a power amplifier, a buffer, a transmitting antenna, a receiving antenna, a low noise amplifier, a mixer at the receiving end, and a variable gain Amplifier, demodulation analog-to-digital converter.

[0065] The digital signal processor is connected to the direct digital frequency synthesizer through the I2C communication interface. The direct digital frequency synthesizer is connected to the upconverter through the radio frequency signal line. The upconverter is connected to the power amplifier and the buffer through the radio frequency signal line. The power amplifier is connected to the power amplifier through the radio frequency signal. The radio frequency signal emitted by the transmitting antenna is input to the receiving antenna through the echo signal reflected by the obstacle, the receiving antenn...

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Abstract

The invention provides a 77GHz millimeter wave radio frequency device and a using method thereof, and belongs to the technical field of millimeter wave radars. The 77GHz millimeter wave radio frequency device comprises a digital signal processor, a direct digital frequency synthesizer, an up-converter, a power amplifier, a buffer, a transmitting antenna, a receiving antenna, a low noise amplifier, a frequency mixer at a receiving terminal, a variable gain amplifier and a demodulating analog-to-digital converter. The 77GHz millimeter wave radio frequency device has the advantages that the 77GHz millimeter wave radio frequency device can be widely applied to millimeter wave range-and-speed measuring radar systems, and 77GHz is adopted as a working frequency band of a millimeter wave radar and combined with a phased-array antenna technology that low temperature co-fired ceramic (LTCC) is used as a substrate to manufacture each micro-strip patch antenna serving as an antenna unit; the direct digital frequency synthesizer is adopted and combined with an up-conversion technology to generate linear frequency modulated continuous waves; and a plurality of transmitter units are adopted andcombined with the phased-array antenna technology to realize horizontal scanning of millimeter wave beams.

Description

technical field [0001] The invention belongs to the technical field of millimeter-wave radar, and provides a 77GHz millimeter-wave radio frequency device and a use method thereof, which are suitable for application in millimeter-wave range-finding and speed-measuring radars, and its typical application is an automobile forward collision avoidance radar system. Background technique [0002] Intelligent transportation system ITS (Intelligent TraIlsponation System) is the cutting-edge technology of transportation science and technology in the world; in recent years, with the rise of intelligent transportation systems around the world, automotive forward collision avoidance radar system is one of the important research contents. received increasing attention. [0003] Automobile forward collision avoidance system is based on radar distance measurement and speed measurement. Commonly used ranging and speed measuring radars include ultrasonic, infrared, laser radar, and millimete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/93G01S7/28
Inventor 朱泽睿
Owner 苏州煜瑛微电子科技有限公司
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