Dissertation > Excellent graduate degree dissertation topics show

Research on Modeling and Design Based on Volterra Series for Microwave Nonlinear Scattering Function

Author: HanQin
Tutor: FangGeFeng；WangJiaLi
School: Xi'an University of Electronic Science and Technology
Course: Measuring Technology and Instruments
Keywords: Nonlinear Scattering Function Small-signal Modeling Large-signal Modeling Volterra Series Doubler Design
CLC: TN385
Type: Master's thesis
Year: 2010
Downloads: 39
Quote: 0
Read: Download Dissertation

Abstract


With the application of high frequency and high power, microwave components worked in the non-linear zone most of time.In this case, the traditional s-parameter theory was no longer suitable for describing the strongly nonlinear characteristic of the components accurately. Based on the research of nonlinear theory, we introduced a new theory that represented of non-linear characteristics-non-linear scattering function. On the basis of research of non-linear scattering function which had been put forward, we improved it and perfected the concept of it. Taking advantage of this characterization method, we could consider the harmonic characteristics of the components and describe the strongly nonlinear characteristic of the components more accurately.In this thesis, we mainly discussed the technologies of modeling and simulation for Schottky diode, and then the design of Schottky doubler. We started with the traditional modeling methods for Schottky diode and the small-signal model had been extracted by using optimization method.Using the non-linear scattering function testing system in the core of the digital oscilloscope, part of the non-linear scattering function of Schottky diode were measured, and after that we extracted the large-signal model. Then the volterra series method was utilized to analyze the nonlinear characteristics of the component models. In this process, the method we used was nonlinear current method which was included by volterra series analysis. Thereafter we conducted a non-linear scattering function modeling based on volterra series analysis and meanwhile compared with the data we measured. Finally we designed the filter and the matching network of the input and output by using the results of nonlinear scattering function modeling, and completed Schottky Doublers’ design.In this thesis, whether the small-signal modeling or the large-signal modeling was based on the data we had measured; therefore the models we conducted were much closer to the actual working state of microwave components. In this way, the too idealistic problem or an internally given bias problem, caused by using the simulation data in the modeling process, could be avoided.

Related Dissertations

  1. Research on Dynamic Modeling Method of Complex Switch Resonant Converter,TM46
  2. Decoupling Control and Closed-Loop Design of Multi-Level Converter,TM46
  3. Analysis and Design of 2.5KW Self-Cooled High-Frequency Switching Power Supply,TN86
  4. Research on Modeling, Analyzing and Measurement System for Microwave Nonlinear Circuit,TN62
  5. Based on wavelet neural network modeling method of microwave nonlinear scattering function,TN62
  6. Research on ZVZCS DC-DC Converter Using a Passive Resonant Circuit,TM46
  7. Researches on Simulation Technology for Microwave Nonlinear Scattering Function,TN12
  8. Analysis of Microwave Nonlinear Scattering Function and Large-signal Modeling Based on Wavelet Neural Network,TP183
  9. Microwave nonlinear scattering function of theoretical analysis and large signal based on recurrent neural network modeling technology research,TN925
  10. Analysis of Microwave Nonlinear Scattering Function Theory and Study on Large-Signal Modeling with BP Neural Network,TP183
  11. Research and Design of Low Voltage and High Linearity Cmos Mixer,TN773
  12. The Research of Simulation Technology for Nonlinear Scattering Function Based on Harmonic Balance,TN385
  13. Research and Application of a Modeling Method Based on Nonlinear Scattering Function and Wavelet Neural Network,TN454
  14. Kernel-based Modeling Research for Nonlinear Distributed Parameter Systems,N945.12
  15. Research on Ship Motion Modeling and Prediction Based on Time Series,U675.9
  16. Study on the Linear Performance of SiGe HBT RF Power Amplifiers at Device Level,TN722.75
  17. The receiver nonlinearity under complex electromagnetic environment,TN851
  18. One-Cycle Control for Double-Input Buck Converter,TM461
  19. The Research of Microwave GaAs Power Amplifier and FET Predistortion,TN722.75
  20. Research of Microwave Linear Power Amplifier,TN722.75

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Semiconductor technology > Microwave semiconductor devices
© 2012 www.DissertationTopic.Net  Mobile