Lens Antenna With Planar Focal Surface for Wide-Angle Beam-Steering Application

2019 ◽  
Vol 67 (4) ◽  
pp. 2757-2762 ◽  
Author(s):  
Julio Gonzalez Marin ◽  
Jan Hesselbarth
Keyword(s):  
Beam Steering ◽  
Wide Angle ◽  
Lens Antenna ◽  
Focal Surface

Circular Polarization Wide-Angle Beam Steering at Ka-Band by In-Plane Translation of a Plate Lens Antenna

2015 ◽  
Vol 63 (12) ◽  
pp. 5443-5455 ◽  
Author(s):  
Eduardo B. Lima ◽  
Sergio A. Matos ◽  
Jorge R. Costa ◽  
Carlos A. Fernandes ◽  
Nelson J. G. Fonseca
Keyword(s):  
Circular Polarization ◽  
Beam Steering ◽  
Wide Angle ◽  
Lens Antenna ◽  
Ka Band

scholarly journals A Review of Various Approaches for Beam Steering in Lens Antenna Authors Avinash Saroj

2021 ◽  
Author(s):  
Avinash Saroj ◽  
Nitesh Kashyap
Keyword(s):  
Refractive Index ◽  
Relative Phase ◽  
Beam Steering ◽  
Antenna Element ◽  
Wide Angle ◽  
Lens Antenna ◽  
Lens Antennas ◽  
Radar Systems

In this paper, we will be reviewing beam steering application using lens antenna. Various approaches are available for achieving beam steering of lens antennas for different applications and some of them will be reviewed here. In radar systems, beam steering is accomplished by switching the antenna element or changing the relative phase. Beam steering has major role for 5g due to the quasi optic layer. Beam steering can also be done by varying the refractive index. In most of these papers studies, we found out that beam steering overcomes the interference, improves gain, increases directivity and also save power. Wide angle is also achieved in lens antenna.

scholarly journals A Design Approach of Optical Phased Array with Low Side Lobe Level and Wide Angle Steering Range

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 63
Author(s):  
Xinyu He ◽  
Tao Dong ◽  
Jingwen He ◽  
Yue Xu
Keyword(s):  
Phased Array ◽  
Phase Distribution ◽  
Beam Steering ◽  
Side Lobe ◽  
Design Approach ◽  
Optical Antennas ◽  
Side Lobe Level ◽  
Wide Angle ◽  
Spacing Distribution ◽  
Optical Phased Array

In this paper, a new design approach of optical phased array (OPA) with low side lobe level (SLL) and wide angle steering range is proposed. This approach consists of two steps. Firstly, a nonuniform antenna array is designed by optimizing the antenna spacing distribution with particle swarm optimization (PSO). Secondly, on the basis of the optimized antenna spacing distribution, PSO is further used to optimize the phase distribution of the optical antennas when the beam steers for realizing lower SLL. Based on the approach we mentioned, we design a nonuniform OPA which has 1024 optical antennas to achieve the steering range of ±60°. When the beam steering angle is 0°, 20°, 30°, 45° and 60°, the SLL obtained by optimizing phase distribution is −21.35, −18.79, −17.91, −18.46 and −18.51 dB, respectively. This kind of OPA with low SLL and wide angle steering range has broad application prospects in laser communication and lidar system.

Wide-angle, high-resolution three-dimensional (3D) imaging using non-mechanical beam steering

2021 ◽  
Author(s):  
Christopher L. Hoy ◽  
Jay Stockley ◽  
Kelly Kluttz ◽  
Doug McKnight ◽  
Lance Hosting ◽  
...  
Keyword(s):  
High Resolution ◽  
3D Imaging ◽  
Beam Steering ◽  
Three Dimensional ◽  
Wide Angle

scholarly journals Wide-angle antenna systems with mechanoelectrical beam steering

2020 ◽  
Vol 1515 ◽  
pp. 042089
Author(s):  
Ye A Litinskaya ◽  
A V Stankovsky ◽  
S V Polenga ◽  
Yu P Salomatov
Keyword(s):  
Beam Steering ◽  
Wide Angle ◽  
Antenna Systems
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