High Performance System-on-Package Integrated Yagi-Uda Antennas for W-band Applications and mm-Wave Ultra-Wideband Data Links

2006 ◽  
Author(s):  
B. Pan ◽  
G. DeJean ◽  
J. Papapolymerou ◽  
M.M. Tentzeris ◽  
Y. Yoon ◽  
...  
Keyword(s):  
High Performance ◽  
Ultra Wideband ◽  
Data Links ◽  
W Band ◽  
Performance System

UWB Positioning Systsem Design: Selection of Modulation and Multiple Access Schemes

2007 ◽  
Vol 61 (1) ◽  
pp. 45-62 ◽  
Author(s):  
Hui Yu ◽  
Enrique Aguado ◽  
Gary Brodin ◽  
John Cooper ◽  
David Walsh ◽  
...  
Keyword(s):  
Multiple Access ◽  
High Performance ◽  
Ultra Wideband ◽  
Good Time ◽  
Modulation Scheme ◽  
Positioning System ◽  
Indoor Environments ◽  
Signal Design ◽  
Positioning Systems ◽  
Design Selection

In densely-populated cities or indoor environments, limited visibility to satellites and severe multipath effects significantly affect the accuracy and reliability of satellite-based positioning systems. To meet the needs of “seamless navigation” in these challenging environments an advanced terrestrial positioning system is under development. This system is based upon Ultra-Wideband (UWB) technology, which is a promising candidate for this application due to good time domain resolution and immunity to multipath. This paper presents a detailed analysis of two key aspects of the UWB signal design that will allow it to be used as the basis of such a high performance positioning system: the modulation scheme and the multiple access technique. These two aspects are evaluated in terms of spectral efficiency and synchronisation performance over multipath channels. Thus this paper identifies optimal modulation and multiple access techniques for a long range, high performance terrestrial positioning system using UWB.

Highly efficient hydrolysis of ammonia borane by anion (−OH, F−, Cl−)-tuned interactions between reactant molecules and CoP nanoparticles

2017 ◽  
Vol 53 (4) ◽  
pp. 705-708 ◽  
Author(s):  
Zi-Cheng Fu ◽  
Yong Xu ◽  
Sharon Lai-Fung Chan ◽  
Wei-Wei Wang ◽  
Fang Li ◽  
...  
Keyword(s):  
High Performance ◽  
Ammonia Borane ◽  
Ambient Conditions ◽  
Highly Efficient ◽  
Performance System ◽  
Hydrolysis Of ◽  
Nanoparticle Catalyst

An anion-assisted hydrolytic H2-releasing ultra-high performance system involving ammonia borane and a CoP nanoparticle catalyst has been established under ambient conditions.

scholarly journals A high performance ultra-wideband low cost SMA-to-GCPW transition

2016 ◽  
Vol 13 (12) ◽  
pp. 20160290-20160290 ◽  
Author(s):  
Ding Xu ◽  
Zhengpeng Wang ◽  
Yi Wang ◽  
Jianhua Wu
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Ultra Wideband
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