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LTCC technology - based X-band phase-locked source

Author: YangShiChao
Tutor: JinLong
School: University of Electronic Science and Technology
Course: Electromagnetic Field and Microwave Technology
Keywords: LTCC X-band Phase-locked loop Frequency synthesizer Voltage Controlled Oscillator
CLC: TN74
Type: Master's thesis
Year: 2011
Downloads: 38
Quote: 0
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Abstract


Microwave communication system , the frequency synthesizer occupies a very important position , the miniaturization indicators to achieve direct impact on the volume of the entire system . In this paper, the low-temperature co- fired ceramic (LTCC) technology into the design of the frequency synthesizer , designed a miniaturized , high reliability X-band phase-locked source provides practical experience for LTCC technology to achieve a system of microwave circuits . This paper first describes the characteristics of the microwave oscillator frequency source , development trends as well as domestic and foreign LTCC oscillator and frequency synthesizer developments . Next, the article will be used PLL frequency synthesizer with LTCC technology is introduced , including the linear phase noise model as well as phase-locked loop the LTCC technology process , design rules . Portion in the circuit design , first formula in accordance with the phase noise of the voltage controlled oscillator , the negative resistance theory a Buried resonator voltage controlled oscillator is designed . The use of high-frequency three-dimensional simulation software HFSS vertical transition structure of the the LTCC substrate used several transmission lines , and a buried bisection splitters , modeling and simulation for the LTCC circuit design provides a reference model and data . On this basis , the combined topics miniaturization , low phase noise requirements , LTCC technology solutions to achieve a single- ring phase-locked circuit design layout PLL frequency synthesizer module substrate machined surface mount , summed up the experience in the design , proposed improvements .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Frequency synthesizer technology,frequency synthesizer
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