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MINIATURISED LOW FREQUENCY ANTENNAS INTEGRATED WITH BAND GAP STRUCTURES

集成带隙结构的小型化低频天线

基本信息

批准号：
EP/F067968/1
负责人：
R Langley
金额：
$ 41.44万
依托单位：
University of Sheffield
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2008
资助国家：
英国
起止时间：
2008 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FF067968%2F1
关键词：
MINIATURISED LOW FREQUENCY ANTENNAS INTEGRATED

项目摘要

The growth in mobile wireless communication systems has been rapid in recent years particularly for mobile telephone and network systems from 900MHz to about 6GHz. This has directly led to advances in technology such as the development of small multi-band antennas, compact wideband components and the application of frequency selective surfaces (FSS) and related electromagnetic band gap (EBG) materials. At frequencies below this such as the military communication bands at 30MHz, foliage penetrating radar at 110-200MHz, broadcast bands at 100MHz and 200MHz, deep space missions and satellite emergency beacons 100-400 MHz and TETRA at 400MHz, relatively little has been achieved mainly due to the large physical size involved at these frequencies. At these low frequencies monopole like antennas tend to be used and these represent single fault failures that are particularly crucial in space and military applications. The purpose of this application is to design miniaturised low profile antennas and integrate them over high impedance EBG/FSS surfaces (HIS) for long wavelength applications providing a platform independent antenna installation. The antennas would not only be small but also able to be integrated onto many vehicular platforms independent of interactions with the vehicle surface. The main challenge is to develop antenna and HIS structures that are physically much smaller than the wavelength and yet effective in their application in small EBG array configurations. To this end both passive and active lumped circuit element components will be incorporated into novel antenna and HIS surfaces to reduce their size. The performance of small arrays of HIS elements will be studied to improve their performance particularly when integrated with miniaturised low frequency antennas.

近年来，移动的无线通信系统的发展迅速，特别是对于从900 MHz到大约6 GHz的移动的电话和网络系统。这直接导致了技术的进步，例如小型多频带天线、紧凑型宽带组件的开发以及频率选择表面（FSS）和相关电磁带隙（EBG）材料的应用。在低于这一频率的频率上，例如30兆赫的军事通信波段、110- 200兆赫的植物穿透雷达、100和200兆赫的广播波段、100-400兆赫的深空飞行任务和卫星紧急信标以及400兆赫的TETRA，所取得的成就相对较少，主要是因为这些频率所涉及的物理尺寸很大。在这些低频率下，倾向于使用类似于天线的天线，这些天线代表在空间和军事应用中特别重要的单一故障故障。本申请的目的是设计扁平化的低剖面天线，并将其集成在高阻抗EBG/FSS表面（HIS）上，用于长波长应用，提供独立于平台的天线安装。天线不仅体积小，而且能够集成到许多车辆平台上，而不受与车辆表面相互作用的影响。主要的挑战是开发物理上比波长小得多的天线和HIS结构，但在小型EBG阵列配置中的应用中是有效的。为此，无源和有源集总电路元件组件将被纳入新型天线和HIS表面，以减少它们的尺寸。将研究HIS元件的小阵列的性能，以提高它们的性能，特别是当与低频率天线集成时。