Integrated model of liquid crystal-clad waveguide for non-mechanical beam steering

2019 ◽  
Author(s):  
Henry G. Gotjen ◽  
Jakub Kolacz ◽  
Colin McGinty ◽  
Anthony Clabeau ◽  
Robel Y. Bekele ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Beam Steering ◽  
Integrated Model

scholarly journals Liquid Crystal Devices for Beam Steering Applications

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 247
Author(s):  
Rowan Morris ◽  
Cliff Jones ◽  
Mamatha Nagaraj
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Adaptive Optics ◽  
Beam Steering ◽  
Optical Components ◽  
Advantages And Disadvantages ◽  
Liquid Crystal Devices

Liquid crystals are valuable materials for applications in beam steering devices. In this paper, an overview of the use of liquid crystals in the field of adaptive optics specifically for beam steering and lensing devices is presented. The paper introduces the properties of liquid crystals that have made them useful in this field followed by a more detailed discussion of specific liquid crystal devices that act as switchable optical components of refractive and diffractive types. The relative advantages and disadvantages of the different devices and techniques are summarised.

An investigation of the dynamic beam-steering capability of a liquid-crystal-enabled leaky-wave antenna designed for 5G applications

2021 ◽  
Vol 119 (3) ◽  
pp. 034104
Author(s):  
Rodrigue Tchema ◽  
Nectarios C. Papanicolaou ◽  
Anastasis C. Polycarpou
Keyword(s):  
Liquid Crystal ◽  
Beam Steering ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna

Large angle beam steering using a slanted holographic polymer dispersed liquid crystal grating

2018 ◽  
Vol 51 (38) ◽  
pp. 385103 ◽  
Author(s):  
Minghuan Liu ◽  
Zhihui Diao ◽  
Li Xuan ◽  
Zenghui Peng ◽  
Lishuang Yao ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Beam Steering ◽  
Large Angle ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Liquid Crystal Grating

Beam steering by liquid crystal elastomer fibres

Soft Matter ◽  
2017 ◽  
Vol 13 (45) ◽  
pp. 8590-8596 ◽  
Author(s):  
S. Nocentini ◽  
D. Martella ◽  
D. S. Wiersma ◽  
C. Parmeggiani
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystalline ◽  
Beam Steering ◽  
Liquid Crystal Elastomer ◽  
Plane Direction

A liquid crystalline elastomer based beam steerer is demonstrated able to address the impinging signal in every in-plane direction.

scholarly journals Microwave Liquid Crystal Technology

Crystals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 355 ◽  
Author(s):  
Holger Maune ◽  
Matthias Jost ◽  
Roland Reese ◽  
Ersin Polat ◽  
Matthias Nickel ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Millimeter Wave ◽  
Antenna Arrays ◽  
High Performance ◽  
Beam Steering ◽  
Phase Shifters ◽  
Dielectric Waveguides ◽  
Microwave Components ◽  
Recent Developments ◽  
Rectangular Waveguides

Tunable Liquid Crystal (LC)-based microwave components are of increasing interest in academia and industry. Based on these components, numerous applications can be targeted such as tunable microwave filters and beam-steering antenna systems. With the commercialization of first LC-steered antennas for Ku-band e.g., by Kymeta and Alcan Systems, LC-based microwave components left early research stages behind. With the introduction of terrestrial 5G communications systems, moving to millimeter-wave communication, these systems can benefit from the unique properties of LC in terms of material quality. In this paper, we show recent developments in millimeter wave phase shifters for antenna arrays. The limits of classical high-performance metallic rectangular waveguides are clearly identified. A new implementation with dielectric waveguides is presented and compared to classic approaches.

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