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Study and Design of Ultra-wideband Dual-polarized Antenna for Base Station

Author: HuangBinHong
Tutor: XueFengZhang
School: South China University of Technology
Course: Communication and Information System
Keywords: Ultra-wideband Bipolaron Base station antenna HFSS
CLC: TN828.4
Type: Master's thesis
Year: 2010
Downloads: 239
Quote: 0
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Abstract


The base station antenna is a critical component of the mobile communication network, it not only provides the physical link between the mobile station and a base station, also the frequency multiplexing, diversity reception, optimizing coverage mobile communications technology such as application of important equipment. Accordingly, various applications of the performance of the base station antenna also proposed a variety of different performance requirements. Mobile communication technology is the most important concern is how to use limited spectrum resources to meet user needs on the spatial and temporal distribution. This also emerged a variety of mobile communication standard, the coexistence of multiple standards. Therefore, how to design a balance between the various performance, coverage broadband segments antenna as far as possible, for adaptation to a variety of standard, or for future scalability, obviously of great significance. This paper first discusses the the wideband antenna existing research, the design process of a utility model ultra-wideband dual-polarized base station antenna radiation units. Electromagnetic simulation software HFSS based on the finite element method, professional characteristics of the antenna simulation. The base station antenna radiation unit meet the communication industry standards VSWR LT; = 1.5 bipolaron port isolation under conditions of less than-28dB, which can cover the frequency band of 1.4GHz ~ 3.6GHz. Subsequently, the radiating elements of the antenna element, simulation and analysis of the performance of the antenna array. First, focus on the convergence of broadband array antenna beam simulation analysis of the the beam convergence properties of the array of single-layer side panels. After the analysis of simulation results, it is found that the single-layer side panels is difficult to achieve better horizontal plane beam convergence in a wide band. Therefore propose a design of the structure of the double side plate, and by the various structural parameters of the simulation to adjust to obtain good beam convergence performance, validation of the design ideas. Then, the introduction of antenna integration design concept, the simulation analysis on the performance of the antenna. Simulation and optimization of the radiation characteristics of the antenna to obtain the results of the industry-standard in the 1710MHz-2170MHz band. Finally, in the case of both VSWR, port isolation, beam width, and antenna gain, cross polarization ratio, front to back ratio and other base station antenna indicators, the simulation to obtain the optimal antenna structure, the completion of the ultra-wideband bipolar of base station antenna design.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > Antenna: zoning > Microwave communication antennas
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