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The Research and Designing of Antennas at the MIMO System Terminal

Author: SunXiaoLing
Tutor: LiuJianXia
School: Taiyuan University of Technology
Course: Communication and Information System
Keywords: MIMO Microstrip patch antenna Dual-band Circularly polarized System capacity
CLC: TN822
Type: Master's thesis
Year: 2011
Downloads: 86
Quote: 1
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Abstract


Recent years, with the rapid development of communication technology , wireless communication is increasingly becoming a serious shortage of the growing problem of wide-band high-speed multimedia applications , spectrum resources , in this case , MIMO multi-antenna technologies have emerged to become the current study one of the hot MIMO system terminal antenna design problem , it is the technology of the key issues. Wherein the microstrip antenna has various advantages of its small size, light weight , low profile , etc. to obtain a wide range of applications . Microstrip antenna design its own drawbacks limit its practical applications , such as the low-gain , narrow bandwidth . This is resulting in its direction mainly concentrated in the broad-band , multi-band and multi-polarization technology . This thesis is based on the high-frequency simulation software HFSS microstrip antenna simulation and optimization , design a high-speed , dual-band circularly polarized microstrip antenna . MATLAB circularly polarized antenna MIMO system capacity improved simulation . Including the following aspects : ( 1 ) the integrated use of coplanar waveguide feed and meandering Act , designed N-shaped patch antenna . The antenna in the same resonant frequency in the case , the bandwidth can be improved effectively ; slit loading method , \Simultaneously produced the kind of antenna , measured in a lab environment with a network analyzer , the the HFSS software simulation results to be compared with the actual measurements . ( 2) cutting angle and orthogonal feed method , designed the E-shaped the Cutaway and \. According to the design , making the antenna physical measurements into Ding comparing the simulation results with the measured results . ( 3) study the circularly polarized microstrip antenna to increase the channel capacity of MIMO system application , through simulation , contrast , validation circularly polarized microstrip antenna can effectively increase the channel capacity .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > Antenna: the band and the wave mode of transmission points
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