Research On Key Techniques Of Radio Resource Allocation In Relay-enhanced Cellular Networks

Modern electronic products are required to meet the basic functions of the first embodied as small as possible, lightweight. As the essential part of the wireless communication system, the antenna has a direct influence on the volume and weight of the equipment.Microstrip planar array antenna is a hot research hotspot in antenna field, which is characterized by small volume and light weight, easy to be integrated and easy to be integrated, which is favored by experts and scholars.In recent years, wireless communication technology has been rapid development, wired communication technology has been unable to meet the needs of people to travel, personal communication more requirements anytime, anywhere, so the wireless mobile communication, wireless communication equipment are constantly emerging. Wireless communication equipment has become the essential goods that people carry, which requires the volume of the wireless communication equipment as small as possible, as small as possible.The electromagnetic wave of Ku- band satellite TV broadcast is the right- circular polarized wave, which is seen in the direction of transmission. The amplitude of the electric field is controlled by the same direction and the direction of the vector is rotating clockwise.. Only by ensuring that the receiving antenna is a right-handed circularly polarized antenna, can the satellite broadcast signal be effectively received.In this paper, a microstrip antenna is studied, which is a right-handed circularly polarized antenna, which is suitable for feeding position.. This antenna does not need to use a lot of metal in the production, which reduces the weight of the antenna. Circuit control phase shifter change beam pointing, realize electronic scanning, so this antenna can be installed on the mobile devices, such as the top of the car, said to the vehicle mounted antenna, due to the propagation speed of the car is moving speed and wave after all, can not be compared, it does not affect the receiving signal.The two software Ansoft HFSS and Ansoft designer on the day of the microstrip patch for the design and simulation, using the crank line array unit design the microstrip dual array, eight element array, 16 element array antenna, of the feed network awakened with analysis and will feed network and dual plane array, eight yuan surface array, 16 element array antenna of a joint simulation, to simulate the real antenna.