Perfect Absorption by an Array of Lossy Dipoles Located Close to a Ground Plane

2019 ◽  
Vol 67 (9) ◽  
pp. 5991-5996
Author(s):  
Ofer Markish ◽  
Daniel Silverstein ◽  
Yehuda Leviatan
Keyword(s):  
Ground Plane ◽  
Perfect Absorption

scholarly journals Graphene Hypersurface for Manipulation of THz Waves

2020 ◽  
Vol 1009 ◽  
pp. 63-68
Author(s):  
Sasmita Dash ◽  
Christos Liaskos ◽  
Ian F. Akyildiz ◽  
Andreas Pitsillides
Keyword(s):  
Active Control ◽  
Ground Plane ◽  
Perfect Absorption ◽  
Reflection And Transmission ◽  
Phase Gradient ◽  
At Resonance ◽  
Anomalous Reflection ◽  
Unit Cells ◽  
Incident Waves ◽  
Thz Waves

In this work, we investigated graphene hypersurface (HSF) for the manipulation of THz waves. The graphene HSF structure is consists of a periodic array of graphene unit cells deposited on silicon substrate and terminated by a metallic ground plane. The performance of the proposed HSF is numerically analyzed. Electromagnetic parameters of HSF such as permeability, permittivity, and impedance are studied. The proposed graphene HSF has active control over absorption, reflection, and transmission of THz waves. The graphene HSF provides perfect absorption, zero reflection and zero transmission at resonance. Moreover, the graphene HSF structure has the advantage of anomalous reflection and frequency reconfiguration. Incident waves can be reflected in the desired direction, depending on the phase gradient of the HSF and the perfect absorption is maintained at all reconfigurable frequencies upon reconfiguration. The results reveal the effectiveness of the graphene HSF for the manipulation of THz waves.

Radiated Electric Field from a Solar Cell Module Set on the Ground Plane

2010 ◽  
Vol 130 (8) ◽  
pp. 724-732
Author(s):  
Ryosuke Hasegawa ◽  
Mariko Tomisawa ◽  
Masamitsu Tokuda
Keyword(s):  
Solar Cell ◽  
Electric Field ◽  
Ground Plane ◽  
Cell Module ◽  
Solar Cell Module

Simplified Prediction of Ply Steer in Radial Tires

1980 ◽  
Vol 8 (1) ◽  
pp. 3-9 ◽  
Author(s):  
C. W. Bert
Keyword(s):  
Composite Laminate ◽  
Ground Plane ◽  
Lateral Force ◽  
Rolling Contact ◽  
Slip Angle ◽  
Uniform Stress ◽  
Rubber Composite ◽  
Laminate Theory ◽  
Contact Models ◽  
Uniform Stress State

Abstract Ply steer is a rolling contact phenomenon which manifests itself as a lateral force acting at the ground plane of a tire constrained in yaw or a change in slip angle of a tire free to yaw. It has long been known that radial tires generally exhibit greater ply steer than do bias tires. However, the only previously published quantitative analysis of this phenomenon considered the multi-layer cord-rubber composite by means of netting analysis, which is not very accurate at cord angles typical of radial tire belts. A simple, explicit expression is developed herein by combining modern composite laminate theory with two very simple, uniform-stress-state tire-road contact models. The ply-steer results predicted by the resulting expressions are compared with some experimental results and the agreement is found to be reasonably satisfactory.

A Novel Patch Antenna Design with Slotted Ground Plane for Satellite Communications

2017 ◽  
Vol 49 (004) ◽  
pp. 767--772
Author(s):  
G. AHMAD ◽  
M. I. BABAR ◽  
M. IRFAN ◽  
M. ASHRAF ◽  
T. JAN
Keyword(s):  
Patch Antenna ◽  
Ground Plane ◽  
Satellite Communications ◽  
Antenna Design
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