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Non-Mechanical Beam Steering with Polarization Gratings: A Review
Crystals, 2021 Polarization gratings (PGs) enable a novel architecture for dynamic non-mechanical steering of light over large angles and with large clear apertures. This beam steering approach has many applications in active sensing and optical communications. In this
Christopher Hoy +5 more
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Photonics, 2022 We demonstrate two-dimensional beam steering through wavelength control using a one-dimensional optical phased array (OPA) in which a path difference is built up in each channel to allocate a phase delay sequentially.
Hyeonho Yoon +6 more
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Microswitch beam-steering grid [PDF]
International Conference on Millimeter and Submillimeter Waves and Applications 1994, 2017 We propose new microswitch beam-steering grids to operate at 90 GHz and 240 GHz. The microswitch beam-steering grid has potential advantages over mechanical-scanning devices or active beam-steering reflectors based on diode grids such as lower loss and simple control circuits.
Chiao, Jung-Chih, Rutledge, David B.
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Beam Steering with Segmented Annular Arrays [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2006 Two-dimensional (2-D) arrays of squared matrix have maximum periodicity in their main directions; consequently, they require half wavelength (lambda/2), interelement spacing to avoid grating lobes. This condition gives rise to well-known problems derived from the huge number of array elements and from their small size.
Ullate, Luis G. +3 more
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Liquid Crystal Beam Steering Devices: Principles, Recent Advances, and Future Developments
Crystals, 2019 Continuous, wide field-of-view, high-efficiency, and fast-response beam steering devices are desirable in a plethora of applications. Liquid crystals (LCs)—soft, bi-refringent, and self-assembled materials which respond to various external stimuli&#
Ziqian He +5 more
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On-dimensional off-chip beam steering and shaping using optical phased arrays on silicon-on-insulator [PDF]
, 2011 Optical beam steering can find applications in several domains such as laser scanning, LiDAR (Light Detection And Ranging), wireless data transfer and optical switches and interconnects.
Karel Van Acoleyen +4 more
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Beam steering of a single nanoantenna
Optics Express, 2020 Nanoantennas play an important role as mediators to efficiently convert free-space light into localized optical energy and vice versa. However, effective control of the beam direction of a single nanoantenna remains a great challenge. In this paper, we propose an approach to steer the beam direction of a single nanoantenna by adjusting two antenna ...
Hwi-Min Kim, Myung-Ki Kim
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The Design of a Sliding Rectangular Waveguide Array Antenna for Beam Steering [PDF]
Journal of Electromagnetic Engineering and Science, 2023 In this paper, we designed a sliding waveguide array antenna that can be beam-steered via mechanical manipulation. This reduces the vulnerability of electronic beam-steering radars mounted on ships or aircraft to electromagnetic pulse (EMP) attacks.
Yoon-Seon Choi +3 more
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Crystals, 2022 A novel beam steering angle expander is demonstrated by cascading two polymeric liquid crystal polarization lenses with different diopters. The lens module performs as a planar telescope, which has features such as a light weight, low cost, and high ...
Yannanqi Li, Zhenyi Luo, Shin-Tson Wu
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Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material
Sensors, 2023 In this study, a dual-tuned mode of liquid crystal (LC) material was proposed and adopted on reconfigurable metamaterial antennas to expand the fixed-frequency beam-steering range.
Shuang Ma +3 more
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