Research And Design Antenna For 60GHz Wireless Communication Applications

The population of the information in all walks of life put forward to wireless communication technology.There are a lot of problems in the wireless communication filed,such as the growing tension of spectrum and the slowly development of data transmission speed,which will undoubtedly make the development of wireless communication in the field of great challenges.60GHz band have a great development space and potentiality because its without permission certification,great transmission bandwidth(7GHz),more than 1 Gbit/s Transmission rate and strong anti-jamming.The research background of this project is the commercial microstrip antenna array of 2 X 8,because its gain just 16.8dBi,so this paper want to enhance its gain without changing the structure of the microstrip antenna array.This article has carried on the research.Compared with the traditional phased array antenna and parabolic antenna,microstrip reflector antenna have a characteristic of low profile,light quality,high efficiency,convenient processing and reconfigurable pattern,which has a great value and broad prospects in the field of wireless communication.In this article,I designed a monolayer double rectangle ring microstrip reflector unit by access to information literature.The unit have a phase change greater than 360,a good change with the change of the size of unite,a relatively low requirements for processing technology,which suitable for engineering application.By repeated debugging,this paper designed a microstrip reflector array of 21×81 units and verified its performance by the construction of the microstrip reflector array antenna.Results show that the way can increase the feed antenna's gain a lot by narrow its lobe width.But the feed antenna have a wide lobe in itself,which lead to the microstrip reflector array antenna have a high sidelobe level.This paper narrowed the lobe width of feed antenna by adding metal wall around feed antenna.Which decreased the microstrip reflector array antenna's sidelobe,increased its gain.Another research project of this paper is also involved in engineering applications.In the originally application scenarios,there have been using coaxial cable to transmit energy.In order to save costs,this paper want to use a metal tunnel to transmit energy,so this article has carried on the feasibility study to its idea.This paper studies the process of microstrip antenna transmitting in the rectangular waveguide.The higher mode have a great influence on this process.In order to eliminate the impact of higher mode,this paper proposed an idea of adding a conversion interface between microstrip antenna and rectangular waveguide.