A comparison of planar convex dielectric lens loaded flat reflector with parabolic reflector and reflectarray
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.31927
Abstract: In this article, experimental demonstration in the X‐band of a flat reflector backed dielectric lens is reported. Equivalence between the reflector‐lens and parabolic reflector of equivalent cross‐section is shown by comparing their radiation characteristics. The… read more here.
Keywords: comparison planar; flat reflector; reflector; parabolic reflector ... See more keywords
A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32018
Abstract: This letter presents a novel log‐periodic reflectarray element based on a single‐layer substrate. To achieve a full 360° phase coverage with a gentle slope, the corresponding parameters are optimized. For the sake of minimizing the… read more here.
Keywords: antenna; single layer; log periodic; reflectarray antenna ... See more keywords
A wideband, single layer reflectarray antenna with cross loop and square ring slot loaded patch elements
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s1759078719000187
Abstract: Abstract This paper presents the design and analysis of a wideband X/Ku and Ku band reflectarray antenna. The proposed unit cell of the reflectarray antenna comprises a patch loaded with two distinct slots, viz. a… read more here.
Keywords: loaded patch; square ring; reflectarray antenna; reflectarray ... See more keywords
A Ka-Band High-Efficiency Transparent Reflectarray Antenna Integrated With Solar Cells
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2875359
Abstract: A transparent reflectarray antenna integrated with solar cells is presented for satellite communications in the paper. The electromagnetic characteristics of solar cells at Ka-band are investigated, and a sub-wavelength X-shaped dipole element is designed to… read more here.
Keywords: reflectarray antenna; transparent reflectarray; reflectarray; integrated solar ... See more keywords
Dual-Layer Single-Varactor Driven Reflectarray Cell for Broad-Band Beam-Steering and Frequency Tunable Applications
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2882093
Abstract: A dual-layer active reflectarray configuration is proposed for broad-band beam-steering and/or frequency-tunable applications. A unit cell composed by two stacked fixed-size rectangular patches, properly loaded with a single varactor diode, is designed to realize the… read more here.
Keywords: beam steering; frequency; reflectarray; dual layer ... See more keywords
Broadband Single-Layer Reflectarray Antenna Employing Circular Ring Elements Dented With Sectorial Slits
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2953103
Abstract: A broadband single-layer reflectarray antenna comprising circular ring elements dented with sectorial slits is presented. The sizes of circular rings are fixed and equal for all elements, while the variation of the reflected phase is… read more here.
Keywords: reflectarray antenna; reflectarray; single layer; sectorial slits ... See more keywords
An Efficiency-Improved Tightly Coupled Dipole Reflectarray Antenna Using Variant-Coupling-Capacitance Method
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2973574
Abstract: In this paper, a tightly coupled dipole reflectarray antenna as well as a variant-coupling-capacitance method to improve the antenna aperture efficiency is presented. Tightly coupled elements and true-time-delay lines are employed in the design of… read more here.
Keywords: method; coupling capacitance; reflectarray; tightly coupled ... See more keywords
Analysis and Design of Reflectarray Antennas Based on Delay Lines: A Filter Perspective
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2976643
Abstract: The analysis and design of reflectarray (RA) antennas based in delay lines is introduced for the first time from a filter perspective. To this purpose, each unit-cell of the RA is considered as a network… read more here.
Keywords: reflectarray antennas; unit; reflectarray; delay ... See more keywords
Broadband Reflectarray With High Polarization Purity for 4K and 8K UHDTV DVB-S2
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2999112
Abstract: A broadband spaceborne reflectarray with high polarization purity is proposed for Ultra High Definition TV (UHDTV) broadcasting for direct-to-home (DTH) applications. The provided bandwidth would allow to offer DTH and other services, while the enhanced… read more here.
Keywords: broadband; polarization purity; reflectarray; polarization ... See more keywords
Analysis and Elimination of Unwanted Resonances for Wideband Reflectarray Antenna Design at Sub-Millimeter Waves
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3044363
Abstract: In this study, unwanted additional resonances are analyzed and a method is developed to eliminate them for wideband offset dual reflectarray antenna at sub-millimeter waves. In the terahertz range, the additional resonances can usually be… read more here.
Keywords: millimeter waves; reflectarray antenna; reflectarray; sub millimeter ... See more keywords
Efficient Graphene Reconfigurable Reflectarray Antenna Electromagnetic Response Prediction Using Deep Learning
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3054944
Abstract: Aiming at the time-consuming problem of the full-wave (FW) simulation of the scattering characteristics of the traditional graphene reconfigurable reflectarray antenna, a fast prediction method of electromagnetic (EM) response based on deep learning is proposed.… read more here.
Keywords: response; reflectarray antenna; reflectarray; reconfigurable reflectarray ... See more keywords