Dissertation
Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > General issues

Research and Design on Novel Reconfigurable Antenna

Author LiuXuWen
Tutor ChengYong
School Nanjing University of Posts and Telecommunications
Course Electronics and Communication Engineering
Keywords Frequency reconfigurable antenna Pattern reconfigurable antenna Circular polarization reconfigurable antenna PIN switch
CLC TN820
Type Master's thesis
Year 2012
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The rapid development of modern wireless communication technologies , reconfigurable antenna With the advantage of real-time reconfigurable antenna characteristics , a significant role to play in the development of modern communication systems , has become a hot research topic in the field of the antenna . However , this antenna technology is in the development stage , there are some issues to be further addressed . This paper, for the frequency, direction, diagrams and polarization reconfigurable antenna , several novel structural design reconfigurable antenna, antenna parameters reconstruction function are set in the proper position of the antenna structure of a certain number of PIN switch and control the switch -off state , the main work is as follows . (1) frequency reconfigurable antenna design of the two structures . One is based on the slot antenna of the microstrip structure , can be realized the antenna switch between two frequencies 1.345GHz and 1.9GHz . Another one is based on the microstrip patch antenna of the U-shaped slit , by changing the antenna structure allows the antenna has a five different working status . (2) Design of a directional pattern can be reconstructed microstrip patch antenna, the antenna main beam can be switched in both directions . Subsequently on this basis and the introduction of the two PIN switch , the antenna structure can be reconstructed at the same time one can achieve the frequency and direction of FIG . ( 3) design a circular polarization reconfigurable microstrip patch antenna , antenna switch in status between the left-hand circularly polarized RHCP .

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