Terahertz Harmonic Operation of Microwave Fresnel Zone Plate Lens and Antenna: Frequency Filtering and Space Resolution Properties [PDF]
International Journal of Antennas and Propagation, 2011 This paper examines the binary Fresnel zone plate (FZP) lens frequency-harmonic and space-resolution focusing, and its application as a FZP lens antenna.
Hristo D. Hristov
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Deployable Fresnel zone plate antenna for CubeSats [PDF]
4th Symposium on Space Educational Activities, 2022 Earth Observation satellite missions can provide global and frequent coverage. In the past decade we have seen an explosion of these missions based on three unit CubeSats, notably with Planet and Spire constellations of visible and near-infrared imagers and GNSS-Radio Occultations payloads.
Alejandro García Morilla +3 more
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Deployable Fresnel Zone Plate Antenna for CubeSats
IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium, 2023 Earth observation satellite missions are becoming increasingly important and have been also boosted by the appearance of small satellites, affordable to small companies and universities. Technology miniaturization and the reduction in power consumption have been a key point in the reduction of the dimensions of these spacecrafts, being able to ...
A. Garcia-Morilla +7 more
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A beam steering antenna based on Fresnel zone plate radome
Electronics Letters, 2021 In this study, a beam steering antenna was presented, comprising patch antenna and two layers of Fresnel zone plate (FZP). One of the FZP was a fixed structure, the other was a 1‐D collapsible radome with alternately deployed metal strips covering and ...
Yuting Wu +3 more
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Quarter-wave Fresnel zone planar lens and antenna [PDF]
IEEE Microwave and Guided Wave Letters, 1995 A new variety of the Fresnel zone planar lens with enhanced focusing quality is proposed. Each full-wave zone is divided into four quarter-wave subzones, which are covered by dielectric rings having equal thickness but different permittivities. Based on this planar lens configuration, a transmissive-type Fresnel-zone antenna for DBS-reception with more
H.D. Hristov, M.H.A.J. Herben
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Comparison of the results of restoring the radiation pattern of a conical horn antenna in the far zone based on measurements in the Fresnel zone at different positions of the antenna aperture center relative to the center of rotation [PDF]
Космические аппараты и технологииCurrently, antenna parameter measurement methods can be divided into two main groups: far-range and near-range methods. Long-range methods do not require expensive and complex equipment, but their implementation often requires an antenna range hundreds ...
Grits V. I.
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Information and Telecommunication Sciences, 2017 Background. Talking about evolution of passive radar systems and multifunction antenna systems, it is necessary to acknowledge that distributed antenna systems (DAS) are supposed to be widely spread in the very near future in many areas of human activity,
Gleb Avdeyenko, Evgeniy Yakornov
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Design and Fabrication of a Custom-Dielectric Fresnel Multi-Zone Plate Lens Antenna Using Additive Manufacturing Techniques [PDF]
IEEE Access, 2019 Dielectric flat plate lens antennas fabricated using 3D printing offer several attractive designs features including volumetric efficient geometries, beam-steering capabilities, and relative ease of fabrication.
James M. Monkevich +1 more
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Comprehensive outdoor UWB dataset: Static and dynamic measurements in LOS/NLOS environments [PDF]
Scientific DataThis study provides a comprehensive outdoor ultra-wideband (UWB) dataset to examine the multipath effects in line-of-sight and non-line-of-sight (NLOS) environments for real-time localization.
Byeonghyun Lee +4 more
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Metal‐only Fresnel zone plate antenna for millimetre‐wave frequency bands [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2014 A new variety of millimeter-wave Fresnel-zone plate lens with enhanced focusing quality is described. Each full-wave zone of the lens is divided into four quarter-wave subzones, which are covered by dielectric rings having equal thickness but different permittivities.
Josefa Gómez +3 more
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