scholarly journals A High-Isolation Building Block Using Stable Current Nulls for 5G Smartphone Applications

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 170419-170429 ◽  
Author(s):  
Aidi Ren ◽  
Ying Liu ◽  
Hong-Wei Yu ◽  
Yongtao Jia ◽  
Chow-Yen-Desmond Sim ◽  
...  
Keyword(s):  
Building Block ◽  
Smartphone Applications ◽  
High Isolation ◽  
Stable Current

High Isolation 8⨯8 MIMO Antenna Design for 5G Sub-6 GHz Smartphone Applications

2020 ◽  
Author(s):  
Matthew Bridges ◽  
Mohsen Khalily ◽  
Mohammad Abedian ◽  
Demos Serghiou ◽  
Pei Xiao ◽  
...  
Keyword(s):  
Antenna Design ◽  
Smartphone Applications ◽  
Mimo Antenna ◽  
High Isolation

scholarly journals High-Isolation Eight-Element MIMO Array for 5G Smartphone Applications

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 34104-34112 ◽  
Author(s):  
Wen Jiang ◽  
Bo Liu ◽  
Yangqiang Cui ◽  
Wei Hu
Keyword(s):  
Smartphone Applications ◽  
High Isolation

scholarly journals Compact MIMO Antenna with High Isolation for 5G Smartphone Applications

2019 ◽  
Vol 12 (6) ◽  
pp. 121-125
Author(s):  
A.M. Ibrahim ◽  
◽  
I.M. Ibrahim ◽  
N. A. Shairi ◽  
◽  
...  
Keyword(s):  
Smartphone Applications ◽  
Mimo Antenna ◽  
High Isolation

A Stable Field Emission Electron Source

1977 ◽  
Vol 35 ◽  
pp. 58-59
Author(s):  
W.R. Bottoms ◽  
G.B. Haydon
Keyword(s):  
Field Emission ◽  
Signal To Noise Ratio ◽  
High Brightness ◽  
Electron Sources ◽  
Brightness Field ◽  
Current Densities ◽  
Properties Of Materials ◽  
Stable Field ◽  
Stable Current ◽  
Careful Design

There is great interest in improving the brightness of electron sources and therefore the ability of electron optical instrumentation to probe the properties of materials. Extensive work by Dr. Crew and others has provided extremely high brightness sources for certain kinds of analytical problems but which pose serious difficulties in other problems. These sources cannot survive in conventional system vacuums. If one wishes to gather information from the other signal channels activated by electron beam bombardment it is necessary to provide sufficient current to allow an acceptable signal-to-noise ratio. It is possible through careful design to provide a high brightness field emission source which has the capability of providing high currents as well as high current densities to a specimen. In this paper we describe an electrode to provide long-lived stable current in field emission sources.The source geometry was based upon the results of extensive computer modeling. The design attempted to maximize the total current available at a specimen.

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