Brewster-angle effect on performances of a new millimeter-wave omni-directional antenna consisting of circular rod corrugations gloved in a dielectric shell

2002 ◽  
Vol 33 (3) ◽  
pp. 221-223
Author(s):  
Hengzhen Jing ◽  
Shanjia Xu
Keyword(s):  
Millimeter Wave ◽  
Directional Antenna ◽  
Brewster Angle ◽  
Dielectric Shell ◽  
Angle Effect

scholarly journals Generalized Brewster Angle Effect in Thin-Film Optical Absorbers and Its Application for Graphene Hydrogen Sensing

ACS Photonics ◽  
2019 ◽  
Vol 6 (7) ◽  
pp. 1610-1617 ◽  
Author(s):  
Kandammathe Valiyaveedu Sreekanth ◽  
Mohamed ElKabbash ◽  
Rohit Medwal ◽  
Jihua Zhang ◽  
Theodore Letsou ◽  
...  
Keyword(s):  
Thin Film ◽  
Brewster Angle ◽  
Hydrogen Sensing ◽  
Angle Effect

scholarly journals On the Feasibility of High Speed Railway mmWave Channels in Tunnel Scenario

2017 ◽  
Vol 2017 ◽  
pp. 1-17 ◽  
Author(s):  
Guangkai Li ◽  
Bo Ai ◽  
Danping He ◽  
Zhangdui Zhong ◽  
Bing Hui ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Communication Systems ◽  
High Speed ◽  
Radio Channel ◽  
Wide Band ◽  
Directional Antenna ◽  
Propagation Loss ◽  
High Rate ◽  
Railway Tunnel ◽  
High Data

Rail traffic is widely acknowledged as an efficient and green transportation pattern and its evolution attracts a lot of attention. However, the key point of the evolution is how to develop the railway services from traditional handling of the critical signaling applications only to high data rate applications, such as real-time videos for surveillance and entertainments. The promising method is trying to use millimeter wave which includes dozens of GHz bandwidths to bridge the high rate demand and frequency shortage. In this paper, the channel characteristics in an arched railway tunnel are investigated owing to their significance of designing reliable communication systems. Meantime, as millimeter wave suffers from higher propagation loss, directional antenna is widely accepted for designing the communication system. The specific changes that directional antenna brings to the radio channel are studied and compared to the performances of omnidirectional antenna. Note that the study is based on enhanced wide-band ray tracing tool where the electromagnetic and scattering parameters of the main materials of the tunnel are measured and fitted with predicting models.

scholarly journals Coverage Analysis for Millimeter Wave Networks: The Impact of Directional Antenna Arrays

2017 ◽  
Vol 35 (7) ◽  
pp. 1498-1512 ◽  
Author(s):  
Xianghao Yu ◽  
Jun Zhang ◽  
Martin Haenggi ◽  
Khaled B. Letaief
Keyword(s):  
Millimeter Wave ◽  
Antenna Arrays ◽  
Directional Antenna ◽  
Coverage Analysis ◽  
The Impact
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