Results 11 to 20 of about 4,866 (225)

A 3D-Printed Bi-Material Bragg-Based Reflectarray Antenna [PDF]

open access: goldSensors
This paper presents a 3D-printed fully dielectric bi-material reflectarray with bandgap characteristics for multi-band applications. To achieve bandgap characteristics, a “1D Bragg reflector” unit cell is used.
Walid Chekkar   +6 more
doaj   +3 more sources

Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems [PDF]

open access: yesSensors, 2022
This paper presents an optimization of reflectarray-based RF sensors for detecting UAV and human presence. Our previous human detection radar system adapted a center-fed reflectarray antenna to a commercially available radar system, successfully ...
Hesham Yamani, Jihwan Yoon
doaj   +2 more sources

Analysis and Design of an X-Band Reflectarray Antenna for Remote Sensing Satellite System [PDF]

open access: yesSensors, 2022
This paper presents the analysis and design of an X-band reflectarray. The proposed antenna can be used for a medium Earth orbit (MEO) remote sensing satellite system in the 8.5 GHz band.
Shimaa A. M. Soliman   +2 more
doaj   +2 more sources

Reflectarray antennas for space applications [PDF]

open access: green2012 IEEE International Conference on Ultra-Wideband, 2012
In this paper, the advantages and recent developments of reflectarray antennas for space applications are reviewed. Basic requirements for space antennas, and the limitations and challenges of conventional designs are discussed. Various advantages of reflectarray antennas over reflectors and phased array antennas are reviewed and it is shown that ...
Atef Z. Elsherbeni   +2 more
openalex   +4 more sources

Exploring the Beam Squint Effects on Reflectarray Performance: A Comprehensive Analysis of the Specular and Scattered Reflection of the Unit Cell [PDF]

open access: yesSensors
In this article, the phenomena of beam deviation in reflectarray is discussed. The radiation pattern of the unit cell, which plays a vital role in shaping the beam of the reflectarray, is analyzed by considering undesired specular and scattered ...
Manzoor Elahi   +3 more
doaj   +2 more sources

Design and Analysis of Wideband Single-Layer Reflectarray Antenna for Remote Sensing and Environmental Monitoring [PDF]

open access: yesSensors
In this article, a wideband single-layer reflectarray antenna for Ku-band applications is presented. The proposed reflectarray antenna is suitable for applications such as fixed satellite service (FSS), broadcasting satellite service (BSS), earth ...
Annal Joy J   +4 more
doaj   +2 more sources

X-band reflectarray antenna with arbitrarily (elliptical) polarization for high-power microwave applications

open access: diamondEngineering Science and Technology, an International Journal, 2020
An X-band high-power microwave antenna with arbitrarily (elliptical) polarization is proposed and investigated in this paper. The proposed antenna is founded on a reflectarray composed of printed elements and excited by the microwave energy in the ...
Sahar Abdi Tazehabadi, Shahrokh Jam
doaj   +2 more sources

Single-Layer Metasurface-Based Reflectarray Antenna with H-Shaped Slotted Patch for X-Band Communication [PDF]

open access: yesNanomaterials
In this study, a metasurface-based reflectarray is designed for X-band applications. The unit cells are equipped with an H-shaped slotted patch for additional resonance and phase range.
Jawad Ali, Ashfaq Ahmad, Dong-you Choi
doaj   +2 more sources

On the Role of Reflectarrays for Interplanetary Links [PDF]

open access: greenIEEE Open Journal of the Communications Society
Interplanetary links (IPL) serve as crucial enablers for space exploration, facilitating secure and adaptable space missions. An integrated IPL with inter-satellite communication (IP-ISL) establishes a unified deep space network, expanding coverage and reducing atmospheric losses.
Eray Guven   +3 more
openalex   +4 more sources

Design and implementation of multi-band reflectarray metasurface for 5G millimeter wave coverage enhancement [PDF]

open access: yesScientific Reports
A compact low-profile multi-band millimeter-wave (mm-wave) reflectarray metasurface design is presented for coverage enhancement in 5G and beyond cellular communication.
Bilal Tariq Malik   +2 more
doaj   +2 more sources

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