Accurate metasurface synthesis incorporating near-field coupling effects
, 2019 One of the most promising metasurface architectures for the microwave and terahertz frequency ranges consists of three patterned metallic layers separated by dielectrics.
Olk, Andreas E., Powell, David A.
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A Novel Approach to Remote Detection in Medical Radar Applications Using Flexible Transmit Array Lenses [PDF]
This study introduces a novel method employing adaptable transmitarray lenses for medical radar systems, enhancing the direction of electromagnetic beams in the far-field. The newly developed antenna array exhibited marked improvements in gain, bandwidth,
Arif, Rezki El +4 more
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Investigation of microwave power transfer near sea surface with 2D parabolic equation method
IET Power Electronics, Volume 17, Issue 15, Page 2278-2287, 25 November 2024.Due to the existence of the evaporation duct near‐sea‐surface described as an inhomogeneous refractive index of the atmosphere, microwaves can be trapped in the duct and propagate along it. To investigate wireless power transfer over the sea surface, we utilize the two‐dimensional parabolic equation to calculate the electric field distribution and to ...
Jinyi Hui +4 more
wiley +1 more source
Wideband Transmitarray Antenna Using Compact 2-Bit Filtering Unit Cells [PDF]
, 2023 A wideband transmitarray (TA) antenna using compact 2-bit filtering unit cells is presented with the center frequency designed at 10 GHz. The presented TA antenna features wide bandwidth with a compact aperture size, filtering radiation performance, and ...
Gao, S +6 more
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Charge‐Programmable Photopolymers for 3D Electronics via Additive Manufacturing
Advanced Functional Materials, Volume 34, Issue 18, May 2, 2024.Charge‐programmed 3D printing fabricates 3D electronics with reduced weight and high precision. Photo‐curable resins are designed for exploring the achievable materials property space. Charge and crosslink densities synergistically impact the nano catalyst‐guided selective metal deposition on compatible dielectric materials.
Zhen Wang +8 more
wiley +1 more source
Circularly-Polarized Discrete Lens Antennas in the 60-GHz Band [PDF]
, 2011 This paper presents the design and demonstration of two circularly-polarized transmit-arrays operating in the 60-GHz band and generating a broadside beam and a 30°-tilted beam respectively.
Dussopt, L. +3 more
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, 2022 Focus scanning is critically important in many terahertz (THz) imaging and sensing applications. A traditional single focusing transmitarray can achieve a good focus when the source is on-axis but moving the source off-axis produces a significant ...
Chan, Chi Hou +4 more
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A High-Gain Transmitarray for Generating Dual-Mode OAM Beams
IEEE Access, 2018 This paper proposes a novel transmitarray antenna which can achieve high gain and produce dual-mode orbital angular momentum (OAM) beams in Ku-band. Two back-to-back wideband dual-polarized microstrip antennas are employed as the unit cells, which are ...
Fan Qin +5 more
doaj +1 more source
Achieving wide-angle mechanical beam steering in Ka-band with low-profile transmit-array antennas [PDF]
Beam scanning and high gain are fundamental requisites for antennas operating at millimeter wave, where many 5G and satellite-on-the-move applications are emerging.
Arrebola, M. +6 more
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A Novel Circularly Polarized Folded Transmitarray Antenna with Integrated Radiation and Scattering Performance. [PDF]
Sensors (Basel), 2022 Guo Z +6 more
europepmc +1 more source