Dissertation > Excellent graduate degree dissertation topics show

The Study of Dual-band Filter Used for Wireless Communication

Author: ChenWei
Tutor: ZhangShaoZhou
School: Xinjiang University
Course: Proceedings of the
Keywords: dual-band filter SIR miniaturization
CLC: TN713
Type: Master's thesis
Year: 2010
Downloads: 191
Quote: 0
Read: Download Dissertation

Abstract


Because the need of wireless mobile communication., WLAN(wireless local area network)and dual-band telephones become more and more popular and develop very fast. Dual-band filters play an important role in these communications systems recently. The main works of the thesis can be summarized as following:Firstly, the fundamental theory can be classified as the basic theories of the conventional filters,electromagnetism coupling and impedance transformation. In addition, the thesis elaborates the basic structures and characteristics of step-impedance, while the half-wavelength step-impedance resonator and its application in bandpass filter are emphasized, from which we can derive the theoretical foundation of designing a dual-band filter. Based on this, we can make full use of the method of the second pass band of slow-wave resonator which makes for miniaturization of dual-band filter to design the miniature dual-band band pass filter. Meanwhile, the characteristic of has be improved by the stop-band 0°feed structure. This theory can be proved by the designing of a dual-band filter.Furthermore, we can make full use of new dual-band resonator to design a dual-band filter with controllable bandwidths, which includes a two one-section microstrip open-stub. Formulas for designing fully controllable bandwidth dual-band BPF can be inferred. At the same time, a dual-band BPF which operates in 2.4GHz and 5.2GHz can be designed and simulated. And all the theoretical analysis and design procedures have been validated by Momentum full-wave simulator.

Related Dissertations

  1. The Study of Microstrip Antenna in Frequency Reconfiguration and Co-design with Filters,TN822
  2. Miniaturization of receiver front-end design versatility,TN851
  3. Research on 433M Miniaturized Micro-strip Antenna,TN822
  4. Thestudy Ofminiaturization Multi-band Antenna,TN822
  5. Research on the LTE Antenna Applied in 4G Communication,TN828.6
  6. Based on the dynamic response of bridge overload real-time monitoring system development,TP274
  7. 360 ° phase shifter ESC Design and Optimization,TN623
  8. Typical small conformal antenna design micro- energized,TN822
  9. Microstrip miniaturized multi-band -pass filter design,TN713.5
  10. Satellite receiver medium of multi-band microstrip antenna beam width Research and Application,TN965.5
  11. Isolation Method Research for Strongly-Coupled Antennas,TN820
  12. Study on Miniaturized Rat-Race Couplers for Microwave Communication Systems,TN925
  13. Study on Micro Wedm Using Electrostatic Induction Feeding Method,TG484
  14. Research on Miniaturized Planar Inverted F Antenna for Mobile Terminals,TN820
  15. The Design and Optimization about Emergency Communication on Terminl Antenna,TN828.6
  16. Estimating Domains of Attraction Based on Moment and Sum-of-Squares Optimization,O224
  17. Studies on Miniaturized Chemiluminescence Analysis Systems with Fluids Driven by Micro-pumps Based on Capillary and Evaporation Effects,O657.3
  18. Small appliances product modeling \,TM925.02
  19. The Research and Application of Substation Miniaturization,TM63
  20. The Study of High Efficient Water Treatment Equipment,S277.7
  21. Research and Design of Fractal Wideband Microstrip Antenna Based on the Slot-shape Structure,TN822.8

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Filtering techniques,the filter
© 2012 www.DissertationTopic.Net  Mobile