Results 1 to 10 of about 140,738 (213)
Reflectarray Antennas printed on convex surfaces [PDF]
The characteristics of Reflectarray Antennas printed on convex curved surfaces are discussed in this paper. In particular, results will be presented on the radiation performances of Reflectarrays designed to fit cylinders with different radii of curvature, and with different types of radiating elements.
Paola Pirinoli +2 more
exaly +5 more sources
Neural Network Characterization of Reflectarray Antennas [PDF]
An efficient artificial neural network (ANN) approach for the modeling of reflectarray elementary components is introduced to improve the numerical efficiency of the different phases of the antenna design and optimization procedure, without loss in ...
Angelo Freni +2 more
doaj +3 more sources
Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems [PDF]
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
Investigation of losses on directivity improvement in the graphene reflectarray design [PDF]
The surface-wave generation in microstrip antennas and reflectarray antennas composed of microstrip patches is an unavoidable phenomenon. The incidence of surface-waves on discontinuities and edges results in side-lobe generation and main beam ...
Parinaz Hosseini, Homayoon Oraizi
doaj +2 more sources
Analysis and Design of an X-Band Reflectarray Antenna for Remote Sensing Satellite System [PDF]
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
Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges
As communication technology advances, high-gain antennas are being investigated for a variety of long-distance applications. One such high gain antenna is reflectarray, it has combined advantageous characteristics of a reflector and phased array antennas.
Bashyam Sugumaran +2 more
exaly +3 more sources
Recent Advances in Transparent Reflectarray Antennas
Transparent Reflectarray Antennas (TRAs) have emerged as a promising solution for next-generation communication systems requiring both electromagnetic performance and optical transparency. This review focuses on a detailed latest work on unit cell design
Altaf Ahmed Mugheri +7 more
doaj +3 more sources
Reflectarray Antennas: Analysis and Synthesis Techniques [PDF]
Sandra Costanzo
doaj +2 more sources
Membrane reflectarray antennas with flexible support structures realize low weight and low stowage volume. However, deformation of the reflectarray membrane generally degrades antenna gain. We propose electrical misalignment compensation for 5.8-GHz-band
Keisuke Omoto +2 more
doaj +1 more source
Digitized Reconfigurable Metal Reflectarray Surfaces for Millimeter-Wave Beam-Engineering
Digitized beam-forming metal reflectarray antennas are designed for the millimeter-wave region. The phase control of antennas has been implemented by the reconfiguration of rectangular grooves on a metal plate.
Minwoo Yi +3 more
doaj +1 more source

