scholarly journals Flanched-Cross: An Efficient Cell Geometry for Beam Steering Metasurfaces with Orthogonal Polarisation Handling Capability

2022 ◽  
Author(s):  
Haider Ali ◽  
Karu Esselle ◽  
Subhas Mukhopadhyay
Keyword(s):  
Phase Shift ◽  
Beam Steering ◽  
Two Dimensional ◽  
Cell Geometry ◽  
Transmission Amplitude ◽  
Transmission Properties ◽  
Unique Shape ◽  
Large Phase ◽  
Phase Range ◽  
Orthogonal Polarisation

Geometry plays an important part in the characteristics of meta-cells used to design beam steering metasurfaces. One of the most desirable aspects of these cells is a large phase shift range that can be achieved with good transmission amplitude. However, the existing and most commonly used geometries for these cells are not able to produce a complete 360° phase range with an acceptable level of transmission amplitude. In this article, we present a new cell geometry, Flanched-Cross, that has superior transmission properties due to its unique shape and parametric variability than the commonly used geometries. The results are verified in simulation and further confirmed through prototyping and measurement. One- and two-dimensional steering are also performed for a dual-polarised base array to confirm the applicability of Flanched-Cross cell for beam steering purposes.

scholarly journals Flanched-Cross: An Efficient Cell Geometry for Beam Steering Metasurfaces with Orthogonal Polarisation Handling Capability

2022 ◽  
Author(s):  
Haider Ali ◽  
Karu Esselle ◽  
Subhas Mukhopadhyay
Keyword(s):  
Phase Shift ◽  
Beam Steering ◽  
Two Dimensional ◽  
Cell Geometry ◽  
Transmission Amplitude ◽  
Transmission Properties ◽  
Unique Shape ◽  
Large Phase ◽  
Phase Range ◽  
Orthogonal Polarisation

Geometry plays an important part in the characteristics of meta-cells used to design beam steering metasurfaces. One of the most desirable aspects of these cells is a large phase shift range that can be achieved with good transmission amplitude. However, the existing and most commonly used geometries for these cells are not able to produce a complete 360° phase range with an acceptable level of transmission amplitude. In this article, we present a new cell geometry, Flanched-Cross, that has superior transmission properties due to its unique shape and parametric variability than the commonly used geometries. The results are verified in simulation and further confirmed through prototyping and measurement. One- and two-dimensional steering are also performed for a dual-polarised base array to confirm the applicability of Flanched-Cross cell for beam steering purposes.

Design and realization of two-dimensional beam steering actuated by dielectric elastomer

2021 ◽  
pp. 127557
Author(s):  
Yang Cheng ◽  
Jie Cao ◽  
Chuanxun Chen ◽  
Zhikuo Li ◽  
Chun Bao ◽  
...  
Keyword(s):  
Beam Steering ◽  
Dielectric Elastomer ◽  
Two Dimensional

Two-dimensional Beam Steering in Coherently Coupled Vertical Cavity Surface Emitting Laser Arrays

2019 ◽  
Vol 48 (1) ◽  
pp. 114004
Author(s):  
许坤 XU Kun ◽  
王海丽 WANG Hai-li ◽  
王献立 WANG Xian-li ◽  
杜银霄 DU Yin-xiao ◽  
荀孟 XUN Meng
Keyword(s):  
Beam Steering ◽  
Cavity Surface ◽  
Two Dimensional ◽  
Laser Arrays ◽  
Vertical Cavity Surface ◽  
Surface Emitting Laser ◽  
Vertical Cavity

An All Optical OR Gate Using BPSK Technique Inside 2D Photonic Crystals

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Bahman Shahmohammadi ◽  
Alireza Andalib
Keyword(s):  
Phase Shift ◽  
Photonic Crystals ◽  
Destructive Interference ◽  
Two Dimensional ◽  
Phase Shift Keying ◽  
All Optical ◽  
Shift Keying ◽  
Working Principle ◽  
Simulation Results ◽  
Or Gate

AbstractIn this paper, we are going to design simulate an all optical OR gate based on two-dimensional photonic crystals. The proposed structure was designed based on phase shift keying technique. The working principle of the proposed structure is based on constructive and destructive interference of optical beams. The simulation results shows that the rise and fall times are 0.8 and 0.2 ps, respectively.

scholarly journals Innovative Reconfigurable Metasurface 2-D Beam-Steerable Reflector for 5G Wireless Communication

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1191
Author(s):  
David Rotshild ◽  
Efraim Rahamim ◽  
Amir Abramovich
Keyword(s):  
Beam Steering ◽  
Unit Cell ◽  
Reflection Phase ◽  
Low Profile ◽  
Unit Cells ◽  
Phase Range ◽  
New Type ◽  
Dc Bias ◽  
Communication Methods ◽  
Indoor And Outdoor

A tunable reflector component based on metasurface (MS) with a low profile and reduced mass is offered for indoor and outdoor 5G communication methods to overcome obstacles such as buildings, walls, and turns, and to allow wireless quasi-line of sight path communication at 37 GHz. Integrating varactors with MS unit cells allows tunability and reconfigurability. This approach was presented in many studies, with frequencies of up to K–band. However, today, higher frequencies are used, especially in communication. This work presents the design of a reconfigurable MS reflector, at Ka-band frequencies, based on a new type of resonant unit cell, with uniformed reflection for wide-incident-angular-range, and a simple stimulating DC bias for each MS unit cell, which allows a two–dimensional (2-D) continuous reflection phase manipulation. The unit cell provides a dynamic reflection phase range of over 300° at a wide bandwidth. Simulations of one-dimensional (1-D) and (2-D) at 37 GHz are presented. A steering range of up to ±48° was obtained for azimuth or elevation. A simultaneous independent 2-D beam steering range of up to ±10° in azimuth and up to ± 5° in elevation, allowing obstacles to overcome covering at a practical angular spatial cone of 20° and 10°, is presented.

scholarly journals High-Capacity Optical Wireless Communication Using Two-Dimensional IR Beam Steering

2018 ◽  
Vol 36 (19) ◽  
pp. 4486-4493 ◽  
Author(s):  
Ton Koonen ◽  
Fausto Gomez-Agis ◽  
Frans Huijskens ◽  
Ketemaw Addis Mekonnen ◽  
Zizheng Cao ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Beam Steering ◽  
High Capacity ◽  
Two Dimensional ◽  
Optical Wireless Communication ◽  
Optical Wireless

On-chip silicon optical phased array for two-dimensional beam steering

2014 ◽  
Vol 39 (4) ◽  
pp. 941 ◽  
Author(s):  
David Kwong ◽  
Amir Hosseini ◽  
John Covey ◽  
Yang Zhang ◽  
Xiaochuan Xu ◽  
...  
Keyword(s):  
Phased Array ◽  
Beam Steering ◽  
Two Dimensional ◽  
Optical Phased Array ◽  
On Chip
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