Dissertation > Excellent graduate degree dissertation topics show

Research on the Broadband Technology of the Microstrip Antennas

Author: YinJing
Tutor: WangJunHong
School: Beijing Jiaotong University
Course: Electromagnetic Field and Microwave Technology
Keywords: microstrip antenna broadband organic magnetic materials loading design capacitance compensation feed
CLC: TN822
Type: Master's thesis
Year: 2007
Downloads: 492
Quote: 4
Read: Download Dissertation

Abstract


In recent years,antennas that are widely used in communications, radio,radar,guidance systems as crucial components change a lot in its function,design and process of manufacturing.Microstrip antennas are very promising due to their attractive merits,such as light weight,capability of conformality,ease to integrate and match.The application of microstrip antenna will not be replaced in the future, especially in the mobile communications and personal communications systems. However,the bandwidth of conventional single layer microstrip antenna is only about 0.7%to 7%,which prevents the microstrip antenna from wide application.Many researchers put their effort in getting wide bandwidth of microstrip antenna,and have improved the bandwidths to 13%,16%,25%and even 40%(VSWR<2)by using different methods.This thesis intends to do some works in bandwidth improvement of the microstrip antenna.Good performance can be achieved by changing the shape of radiation patch and the feeding structure.The main works and the creative parts of this thesis can be summarized as follows:1.The broadband technology of microstrip antennas is summarized.The radiation characteristics,the classification,and the feeding model of the microstrip antennas are discussed.The applications and development trends of the microstrip antenna are introduced.2.The hot topics of the microstrip antennas,such as the wideband enhancement technology,the miniaturization technology,and the multi-band technology,are discussed in theory and practice.In order to fit the scope of this thesis,the broadband technology of microstrip antenna is introduced especially.3.A loaded rectangular patch microstrip antenna is proposed.By the use of loading technique,the relative bandwidth of the proposed antenna can reach about three times that of the antenna without loading.The proposed antenna is fabricated and measured,and the experimental results are in well agreement with the simulated results.4.The circular patch antenna fed with capacitor compensation probe is studied. With carefully design of the feeding structure,the relative bandwidth of this kind of antenna can reach 13.8%.

Related Dissertations

  1. Research on Multicast for IPTV Services in 3Tnet,TP393.09
  2. Research on CP Mircrostripantenna with Wide Beamwidth Andarrayantenna for GPS Band Application,TN822
  3. A Kind of Design in Low-sidelobe Circularly Polarized Microstrip Array Antenna,TN822
  4. Research on 433M Miniaturized Micro-strip Antenna,TN822
  5. Research on Cooperative Spectrum Sensing Schemes Based on Random Matrix Theory and Compressed Sensing,TN925
  6. The Application of PON Technology in the Broadband Access Network,TN915.6
  7. Thestudy Ofminiaturization Multi-band Antenna,TN822
  8. Planning and Design of Hybrid Wireless Optical Fiber Broadband Access Network,TN915.6
  9. The Research and Analysis of Ultra-wideband Antennas,TN822.8
  10. Research on Directional High Gainantennaapplied in the Internet of Things,TN820
  11. Research and Design on Planar of Reconfigurable Antenna,TN820
  12. The Key Technology of Wideband Compressed Spectrum Sensing in Cognitive Radio Network,TN925
  13. Astudy on Key Problems in Redundancy Standby Technology with High Reliability for Broadband Remote Access Server,TP309.3
  14. Research on the LTE Antenna Applied in 4G Communication,TN828.6
  15. 100-400MHz broadband power amplifier design and implementation,TN722.75
  16. China Mobile, the whole business into the Internet era of broadband services,F626
  17. EPON technology and mobile access network applications in Nanjing Research,TN929.5
  18. Platform Array - channel - Target empty - when broadband sequential state filtering,TN912.3
  19. Artificial magnetic conductor structure of research and applications in the antenna,TN015
  20. Power spectrum estimation in the broadband ADCP Signal Detection Research and Application,TN911.23
  21. 800MHz ~ 2620MHz RF receiver broadband wireless communications research and design,TN851

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > Antenna: the band and the wave mode of transmission points
© 2012 www.DissertationTopic.Net  Mobile