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Development and electromagnetic environment evaluation of ultra wideband device for the next generation mobile communication system

下一代移动通信系统超宽带器件研制及电磁环境评估

基本信息

批准号：
20560339
负责人：
ANADA Tetsuo
金额：
$ 2.66万
依托单位：
Kanagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2008
资助国家：
日本
起止时间：
2008 至 2010
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20560339/
关键词：
電子デバイス・機器高速伝送回路設計マイクロ波工学マイクロ波電磁界測定電流プローブ電界プローブマイクロストリップ UWBフィルタ EMC/EMI/SI フィルタ合成平面回路 UWBフィルタ設計電磁環境評価磁界プローブ

项目摘要

Since the Federal Communications Commission authorized the unlicensed use of ultra-wideband (3.1-10.6 GHZ) in 2002, the ultra-wideband technologies have drawn great inter-est in short-range wireless communications such as locating and imaging of objects, in-vehicle sensing, monitoring of highways and other civil infrastructure, and so on. In order to realize such UWB wire-less communication systems, the ultra-wideband bandpass filter is one of the key passive components. We succeeded in the achievement of the ultra-wideband bandpass filter without electromagnetic inter-ference in order to integrate them with other components as a compact system. These methods include microstrip structures, parallel coupled line, step impedance resonator, short-circuited stub by via holes, etc. In order to complete the UWB-filter design, it is essential to know not only the input/output fre-quency characteristics with the network analyzer but also the electromagnetic field distribution and cur-rent distribution of center conductor to understand the ultra-wideband filter design, optimization, and operation principle for the microstrip planar structures. For measurement of all EM near field distribu-tions in UWB-BPFs fabricated on a microstrip structure, contactless field mapping technique using elec-tric and magnetic field probes was developed. The H-field can be measured using a small loop probe and an appropriate instrument such as network analyzer or spectrum analyzer and the E-field can be meas-ured using a coaxial type probe.

自从2002年联邦通信委员会批准了超宽带（3.1-10.6 GHZ）的无许可使用以来，超宽带技术在短距离无线通信领域引起了极大的兴趣，如物体定位和成像、车载传感、高速公路和其他民用基础设施的监控等。为了实现这种超宽带无线通信系统，超宽带带通滤波器是关键的无源器件之一。我们成功地实现了无电磁干扰的超宽带带通滤波器，以便将其与其他元件集成为一个紧凑的系统。这些方法包括微带结构、并联耦合线、阶跃阻抗谐振器、过孔短路短管等。为了完成超宽带滤波器的设计，除了使用网络分析仪了解输入/输出频率特性外，还需要了解中心导体的电磁场分布和电流分布，从而了解微带平面结构的超宽带滤波器的设计、优化和工作原理。为了测量微带结构uwb - bpf的所有电磁场近场分布，提出了一种采用电场和磁场探针的非接触式场成像技术。h场可以使用小环路探头和适当的仪器，如网络分析仪或频谱分析仪进行测量，e场可以使用同轴型探头进行测量。