Propagation loss optimization in metal/dielectric coated hollow flexible terahertz waveguides

2012 ◽  
Author(s):  
Pallavi Doradla ◽  
Cecil S. Joseph ◽  
Jayant Kumar ◽  
Robert H. Giles
Keyword(s):  
Propagation Loss ◽  
Terahertz Waveguides

Development of a model for evaluating propagation loss of metal-coated dielectric terahertz waveguides

2021 ◽  
Vol 130 (5) ◽  
pp. 055104
Author(s):  
Yuyuan Huang ◽  
Kuniaki Konishi ◽  
Momoko Deura ◽  
Yusuke Shimoyama ◽  
Junji Yumoto ◽  
...  
Keyword(s):  
Propagation Loss ◽  
Terahertz Waveguides

scholarly journals Spatial characterization of propagation channels for terahertz band

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Bilal Aghoutane ◽  
Mohammed El Ghzaoui ◽  
Hanan El Faylali
Keyword(s):  
Communication Systems ◽  
Indoor Environment ◽  
Channel Model ◽  
Path Loss ◽  
Propagation Loss ◽  
Terahertz Band ◽  
Indoor Scenarios ◽  
Transmission Windows ◽  
Sv Channel

AbstractThe aim of this work consists in characterizing the Terahertz (THz) propagation channel in an indoor environment, in order to propose a channel model for THz bands. We first described a propagation loss model by taking into account the attenuation of the channel as a function of distance and frequency. The impulse response of the channel is then described by a set of rays, characterized by their amplitude, their delay and their phase. Apart from the frequency selective nature, path loss in THz band is also an others issue associated with THz communication systems. This work based on the conventional Saleh-Valenzuela (SV) model which is intended for indoor scenarios. In this paper, we have introduced random variables as Line of sight (LOS) component, and then merging it with the SV channel model to adopt it to the THz context. From simulation, we noted an important effect when the distance between the transmitter and the receiver change. This effect produces variations in frequency loss. The simulations carried out from this model show that to enhance the performance of THz system it is recommended to transmit information over transmission windows instead over the whole band.

GaAs/AlGaAs single‐mode optical waveguides with low propagation loss and strong optical confinement

1990 ◽  
Vol 56 (11) ◽  
pp. 990-992 ◽  
Author(s):  
M. Seto ◽  
A. Shahar ◽  
R. J. Deri ◽  
W. J. Tomlinson ◽  
A. Yi‐Yan
Keyword(s):  
Optical Waveguides ◽  
Single Mode ◽  
Propagation Loss ◽  
Optical Confinement

Influence of leaves, branches and trunks on the propagation loss in 920-MHz on a mulberry farm

2017 ◽  
Author(s):  
C. Yamada ◽  
T. Nishimura ◽  
R. Yoshimura ◽  
H. Shimasaki ◽  
Y. Kado ◽  
...  
Keyword(s):  
Propagation Loss

scholarly journals Measurement of large-strain dependence of optical propagation loss in perfluorinated polymer fibers for use in seismic diagnosis

2014 ◽  
Vol 11 (17) ◽  
pp. 20140707-20140707 ◽  
Author(s):  
Hiroki Ujihara ◽  
Neisei Hayashi ◽  
Marie Tabaru ◽  
Yosuke Mizuno ◽  
Kentaro Nakamura
Keyword(s):  
Large Strain ◽  
Propagation Loss ◽  
Polymer Fibers ◽  
Strain Dependence ◽  
Optical Propagation
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