Development and electromagnetic environment evaluation of ultra wideband device for the next generation mobile communication system
| Project/Area Number |
20560339
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Kanagawa University |
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Principal Investigator |
ANADA Tetsuo Kanagawa University, 工学部, 教授 (20260987)
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| Co-Investigator(Kenkyū-buntansha) |
CHEN GchunーPing 神奈川大学, 工学部, 助教 (20440266)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 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 |
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| Research Abstract |
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.
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Report
(4 results)
Research Products
(64 results)
