柱面共形天线设计.docVIP

摘 要 随着现代无线通信技术的高速发展，整个通信技术对天线的要求越来越高。因此，天线技术必须要实现高增益、宽频带等。而由于共形天线所具有的众多优良的电磁性能，其成为了天线技术中最受关注的发展方向之一。 共形天线，是可以定义为非平面天线的，其所要求的情况是天线单元可以直接平镶在非平面的表面上。因此，共形表面的存在对天线的辐射特性和阻抗特性有着重要的影响。共形天线在工程中还存在很多的优点，比如需要的空间较小，增加了可用的口径等等。 共形天线作为微带天线的重要分支,是在充分考虑了实际应用环境的前提下而诞生的。共形微带天线已经人们研究的热点。 柱面共形天线是曲面共形天线中最是普遍的一种结构,对于它的分析和计算却是近年来才出现的，所以对其的研究以及现时开发出来的技术并不完美。 本文将就电磁仿真软件对柱面共形天线设计进行初步的探索，并在其中应用到射频识别系统(RFID)。 关键词：柱面共形天线；微带天线；射频识别系统（RFID） Abstract With the rapid development of modern technology by wireless communications , the communication technologies have become increasingly demanding on the antenna. So , antenna must achieve high gain, broadband and so on. And as a conformal antenna of the many excellent electromagnetic properties , it has become the most concerned one of the development. The conformal antenna, is defined as non-planar antenna, is it required flat antenna unit can be directly set in the non-planar surface. Therefore, the presence of surface conformal has an important impact on antenna radiation characteristics and impedance characteristics . There are many excellent properties in the project , such as the need for less space, increasing the available aperture and so on. Conformal antenna as an important branch of the microstrip antenna is invented by fully taken account in the application environment and the birth of the premise. Conformal microstrip antenna has become a focus for researchers. Cylindrical conformal antenna is the most common type of structure of curved conformal antennas ,but the analysis and calculations for which it only emerged in recent years. So its research and development out of the current technology is not mature enough . The paper will take a preliminary exploration on cylindrical conformal antenna design of the radio frequency identification(RFID) by electromagne -tic simulation software. Keywords: cylindrical conformal antenna; microstrip antenna; the microwave radio frequency identification(RFID) 目 录 第一章 绪论 1 1.1 引言 1 1.2 研究背景 1 1.3 共形天线的发