中文摘要：

研究了一种基于多波束切换技术的便携式RFID阅读器，详细阐述了射频模块中各硬件部分的工作原理以及芯片参数的确定，给出了多波束天线系统的设计方案以及整个阅读器系统的设计方案．该阅读器工作频率的范围为860～960MHz，并且符合IS018000—6C（EPCGen2）标准．将多波束切换型智能天线系统应用于RFID系统中，经理论证明，可提高现有阅读器的最大识别距离、覆盖区域等性能．

英文摘要：

A kind of portable RFID reader based on multiple switched beams is investigated, and the operation principle of hardware in RF part and the method of choosing chips are narrated in detail. It also proposes multiple switched beams system as well as integrated RFID reader system. Operation frequency bands of the reader is 860-960 MHz, which corresponds well with the standard of ISO 1 8000-6C （EPC Gen2）. It can improve the maximal read range and area when multiple switched beams are applied to RFII） system.