A Convex Optimization Method for Constrained Beam- Steering in Planar (2-D) Coupled Oscillator Antenna Arrays

2007 ◽  
Vol 55 (10) ◽  
pp. 2925-2928 ◽  
Author(s):  
Apostolos Georgiadis ◽  
Konstantinos Slavakis
Keyword(s):  
Convex Optimization ◽  
Antenna Arrays ◽  
Beam Steering ◽  
Optimization Method ◽  
Coupled Oscillator

Convex Optimization of Pencil Beams Through Large-Scale 4-D Antenna Arrays

2018 ◽  
Vol 66 (7) ◽  
pp. 3453-3462 ◽  
Author(s):  
Feng Yang ◽  
Shiwen Yang ◽  
Yikai Chen ◽  
Shiwei Qu ◽  
Jun Hu
Keyword(s):  
Convex Optimization ◽  
Antenna Arrays ◽  
Large Scale

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.

Synthesis of Multibeam Sparse Circular-Arc Antenna Arrays Employing Refined Extended Alternating Convex Optimization

2021 ◽  
Vol 69 (1) ◽  
pp. 566-571
Author(s):  
Yanhui Liu ◽  
Yuqi Yang ◽  
Pan Wu ◽  
Xinyu Ma ◽  
Ming Li ◽  
...  
Keyword(s):  
Convex Optimization ◽  
Antenna Arrays ◽  
Circular Arc
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