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A Frequency Modulated Continuous Wave Radar Based on On-Chip Directional Coupler

A directional coupler, FM continuous wave technology, used in instruments, radio wave measurement systems, radio wave reflection/re-radiation and other directions, can solve the problems of excessive size, poor consistency, difficult to manufacture, etc., to achieve small size, compatibility Good performance and strong applicability

Active Publication Date: 2017-12-19
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional circulators are composed of off-chip components, which have disadvantages such as oversized, high cost, difficult to manufacture, and poor consistency

Method used

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  • A Frequency Modulated Continuous Wave Radar Based on On-Chip Directional Coupler
  • A Frequency Modulated Continuous Wave Radar Based on On-Chip Directional Coupler
  • A Frequency Modulated Continuous Wave Radar Based on On-Chip Directional Coupler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 2 A FM continuous wave radar based on an on-chip directional coupler is implemented under the IBM8HP0.13um SiGe process, including a phase-locked loop, a voltage-controlled oscillator, a power amplifier, a low-noise amplifier, a mixer, an intermediate frequency amplifier, and a digital processing module and the antenna, the output of the phase-locked loop is connected to the input of the voltage-controlled oscillator, the output of the voltage-controlled oscillator is connected to the input of the power amplifier and the input of the mixer, and the output of the low-noise amplifier is connected to the mixer The input terminal of the frequency converter is connected, the output terminal of the mixer is connected with the input terminal of the intermediate frequency amplifier, the output terminal of the intermediate frequency amplifier is connected with the input terminal of the digital processing module, and the on-chip directional coupler (Coupler) is con...

Embodiment 2

[0037] It is roughly the same as Embodiment 1, except that the upper coil and the lower coil are both circular.

Embodiment 3

[0039] It is roughly the same as Embodiment 1, except that the upper coil and the lower coil are both octagonal.

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Abstract

The invention relates to a frequency-modulated continuous-wave radar based on an on-chip directional coupler. The frequency-modulated continuous-wave radar comprises a phase-locked loop, a voltage-controlled oscillator, a power amplifier, a low noise amplifier, a mixer, an intermediate frequency amplifier, a digital processing module, an antenna and a directional coupler, wherein an output end of the phase-locked loop is connected with an input end of the voltage-controlled oscillator, an output end of the voltage-controlled oscillator is respectively connected with an input end of the power amplifier and an input end of the mixer, an output end of the low noise amplifier is connected with the input end of the mixer, an output end of the mixer is connected with an input end of the intermediate frequency amplifier, an output end of the intermediate frequency amplifier is connected with an input end of the digital processing module, and the directional coupler is respectively connected with the power amplifier, the low noise amplifier and the antenna. The radar structure provided by the invention has the advantages of high compatibility, low cost, high integration degree and the like, and is suitable for chips.

Description

technical field [0001] The invention belongs to the technical field of integrated circuits and relates to a frequency modulation continuous wave radar, in particular to a frequency modulation continuous wave radar based on an on-chip directional coupler. Background technique [0002] FMCW radar is a frequency modulated continuous wave (Frequency Modulated Continuous Wave) radar. It is a radar system that measures the distance or speed of a target by detecting the frequency shift of the transmitted wave and the echo. Compared with the pulse radar which measures the microwave pulse to realize the ranging function, the FMCW radar has higher ranging accuracy and higher velocity resolution. Due to the easy implementation and high performance of FMCW radar structure, it is widely used in automobile anti-collision detection, intelligent navigation, traffic monitoring and other fields. [0003] Such as figure 1 As shown (Tessmann, A.; Kudszus, S.; Feltgen, T.; Riessle, M.; Sklarc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/32G01S13/58
CPCG01S13/32G01S13/58
Inventor 廖怀林王逸潇郝秀成叶乐
Owner PEKING UNIV
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