ii
Design and integration of 5.8GHz Doppler Radar System
Student: Wen-Lung Lee Adivisor: Dr. Shyh-Jong Chung
Degree Program of Electrical and Computer Engineering
National Chiao Tung University
Abstract
In this thesis, a 5.8GHz Doppler radar system has been developed. The
advantages of the radar were simple, compact size, low cost and low power
consumption. The hybrid mixer with particular characteristic of passing LO
power to antenna port is proposed to provide the velocity for a moving target,
which the transmitted radar signal and the received echo signal pass through
the same antenna with no circulator. Taper antenna array has 50degree
tilt-beam (40degree from horizontal plane), 8dBi gain, 40degree Half Power
Beam-width (HPBW). This 5.8GHz Doppler radar consist of the 5.8GHz
voltage control oscillator (VCO), hybrid mixer, antenna array and IF
amplifiers which has been design to accomplish 5.8GHz Doppler radar system.
The radar is demonstrated in the car to measured its performances. Finally, the
designed Doppler radar transceiver is measured by an Oscilloscope and Digital
Signal Processing (DSP).
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2017-06-19
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