Dissertation > Excellent graduate degree dissertation topics show

Design and Fabrication of LC Bandpass Filters Constructed on Multilayer Substrates

Author: ZhangLong
Tutor: ChengChongHu
School: Nanjing University of Posts and Telecommunications
Course: Electromagnetic Field and Microwave Technology
Keywords: multilayer substrates structure band-pass filters inductors capacitors
CLC: TN713.5
Type: Master's thesis
Year: 2013
Downloads: 98
Quote: 0
Read: Download Dissertation

Abstract


Microwave and RF filters are widely used in various wireless communication systems, whichare important part of RF front device and have an effect on entire system. With the miniaturizationof communication components, the filter miniaturization becomes harder. Multilayer substratesstructure filter can take full advantage of the space-utilizing, reducing device size effectively, andmeet various demands. This thesis uses the multilayer substrates structure design the band-passfilter. It focuses on LC, which are lumped-parameter capacitor and inductor device, filter design andfabrication with the discussion of theoretical analysis and software simulation. The main work andcontributions of the thesis include:(1) The design of the fourth-order filter based on cascading two second-order units with animproved cascade method, thus the performance of this filter is improved without unnecessarycoupling.(2) A filter working at800MHz and having a bandwidth of15.4%is fabricated byhand-assembled the monolithic circuit units. The measurement result is in accordance with thesimulation results.(3) Keeping the insertion loss less than3dB, the filter bandwidth is reduced to2.7%insimulation and4.5%in fabrication in respectively.Actually filter design with multilayer substrates structure has been deeply studied and widelyused, however, there are a lot of unwanted coupling and parasitic between the various componentsof the multilayer dielectric structure. Thereby the filter performance is too poor to achievehigh-order filter. This thesis achieve a fourth-order filter using two second-order units. Meanwhilethe measurement shows high performance with a narrow bandwidth.

Related Dissertations

  1. Design and Research of the Inter-Chip Inductive Coupling Wireless Transceiver for 3D Stacking Package,TN859
  2. The Research and Design of Radio Frequency Monolithic Voltage Controlled Oscillator in 0.18μm CMOS Technology,TN752
  3. Power system capacitor explosion causes of and countermeasures,TM533
  4. Design and Analysis of Power Integrity in High Speed PCB,TN41
  5. Study on Band-pass Filters Based on Triangle SIW Resonators,TN713.5
  6. Research on the Auxiliary Power for Electric Vehicles,U469.72
  7. The Co-design Study of Low Noise Amplifiers and Filters,TN713
  8. For wireless energy transmission RF signal propagation in vivo experimental study,R318
  9. Study and Design of 1.8GHz CMOS Voltage Controlled Oscillator Based on 0.25μm Technology,TN752
  10. Low-temperature sintering M-type barium ferrite magnetic characteristics and application of high-frequency,TM277
  11. The Modeling, Optimization Design and Applications of Rf On-chip Spiral Inductors,TM55
  12. Experimental Study on Coupling Effect of RF MEMS Coils in Simulated Bio Body Environment,TM55
  13. Microwave Filter Structure Theory and Key Technologies,TN713
  14. The Research of Interconnected System in High-Speed Digital Circuit,TN79
  15. RF Inductance Calculation and Its Application for On-chip Planar Spiral Inductors,TM55
  16. Modeling and Design of Inductive Devices in RFICs,TN454
  17. Extraction and Application about Modeling Parameters of Spiral Inductors on Silicon Substrate,TM55
  18. Fabrication and Investigation of Co2Z Type Ferrite Films for High-frequency Applications,TM277
  19. Regional reactive power compensation issues to,TM761
  20. CMOS Low Noise Amplifier Research and Design,TN722
  21. Studies on Application s of Ionic Liquids as Electrolytes in Electrochemical Capacitors,TM53

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