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Millimeter-wave receiver front-end research

Author: ZhaoZuoLing
Tutor: YangZuo
School: University of Electronic Science and Technology
Course: Circuits and Systems
Keywords: Millimeter Receiver Filter Waveguide SIW
CLC: TN851
Type: Master's thesis
Year: 2010
Downloads: 216
Quote: 1
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Abstract


Because of the increasingly crowded microwave spectrum , as well as infrared and optical systems in harsh environments and night work limits , speed up the research and application on the millimeter . Moreover , the millimeter wave characteristics are inherent in the millimeter wave systems to promote the military and civilian fields. Millimeter wave receiver technology also will be rapid development. This paper studied the millimeter wave band receiver front-end subsystem. The receiver front-end subsystem using a fixed LO superheterodyne architecture , the RF input signal frequency range 35.3-36.5GHz, the LO frequency 34GHz. Wherein the receiving link consists of low noise amplifiers, RF front-end pre- filter , mixer, IF amplifier and IF amplifier , local oscillator link by the frequency multiplier, amplifier and filter. Papers detailed analysis of millimeter-wave receiver front-end system design , system design goals set forth under the millimeter-wave front-end subsystem index distribution . Focus analysis filters, low noise amplifiers and mixers circuit operating principle and design method . Combined with specific targets for each device required to give details of each independent device design process. The receiver front-end subsystem for making a systematic testing, and achieved good results. The receiver front-end system noise figure less than 3.4dB, gain better than 17.6dB, image rejection greater than 40dB. Finally, the inadequacies of the system conducted a comprehensive in-depth analysis and suggest improvements . Discussed in particular with a substrate integrated waveguide filter replacement waveguide filters , RF front-end as a pre- filter system miniaturization improvement program.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Receiver equipment, radio Radio > Receiver: the form of points
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