Design & prototype development of a smart beamforming antenna

设计

• 批准号: 506321-2016
• 负责人: Mohammadi, Farah
• 金额: $ 1.82万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=610159
• 关键词: Design; prototype; development; smart; beamforming

A smart antenna is an array of radiating antenna elements employing a digital controller to achieve two main functions - direction finding and beamforming. Smart antennas can increase the capacity of a RF system and broaden its network coverage by steering multiple beams to track mobile stations, while compensating aperture distortion or reducing multipath fading and co-channel interference. The application of smart antenna systems requires accurately controlling the phase and amplitude of each radiator element in order to accurately steer the antenna beam to predefined angles/directions. Unfortunately, Sinclair Technologies had neither the technical expertise nor the resources to perform all of the required signal processing technique used in antenna arrays for directional signal transmission or reception (beamforming). Consequently, there is an urgent need on the feeding network design (i.e. power amps, phase shifters), microcontroller/ field-programmable gate array (FPGA) and firmware required to accurately control the phase and amplitude of each radiator element in order to accurately steer the antenna beam to predefined angles/directions.

智能天线是采用数字控制器来实现两个主要功能-测向和波束形成的辐射天线元件阵列。智能天线可以通过控制多个波束来跟踪移动的站，同时补偿孔径失真或减少多径衰落和同信道干扰，从而增加RF系统的容量并扩大其网络覆盖范围。智能天线系统的应用需要精确地控制每个辐射器元件的相位和幅度，以便将天线波束精确地操纵到预定义的角度/方向。不幸的是，Sinclair Technologies既没有技术专长，也没有资源来执行天线阵列中用于定向信号传输或接收（波束成形）的所有所需信号处理技术。因此，迫切需要精确地控制每个辐射器元件的相位和幅度所需的馈电网络设计（即，功率放大器、移相器）、微控制器/现场可编程门阵列（FPGA）和固件，以便将天线波束精确地操纵到预定义的角度/方向。