New Phase Realization Approach for Implementation of Braodband Reflectarrays
International Journal of Information and Communication Technology Research, 2021 We present a new phase realization approach applied to design the broadband single-layer reflectarray antennas. Such an optimization technique minimizes the adverse effects of frequency dispersion which limit the bandwidth of reflectarray antenna ...
Mahmood Rafaei-Booket +1 more
doaj
High efficiency near diffraction-limited mid-infrared flat lenses based on metasurface reflectarrays [PDF]
, 2016 A limiting factor in the development of mid-infrared optics is the lack of abundant materials that are transparent, low cost, lightweight, and easy to machine. In this paper, we demonstrate a metasurface device that circumvents these limitations.
Aieta, Francesco +11 more
core +3 more sources
Shaped-Pattern Reflectarray Antennas for mm-Wave Networks Using a Simple Cell Topology
IEEE Access, 2022 In this paper, it is proposed the use of ultra-thin reflectarrays in some emerging scenarios in the new mm-wave cellular networks such as 5G, Beyond-5G (B5G), and future 6G.
Borja Imaz-Lueje +4 more
doaj +1 more source
The socio-economic dimensions of the fisherman’s well-being at Batam Island: a descriptive survey [PDF]
, 2020 The well-being of the people is a fundamental part of a government's drive towards a developed nation. Indonesia's maritime community is one of the few minority communities that need attention in order to achieve Indonesia's balance of growth. Therefore,
Isa, Khairunesa +1 more
core +1 more source
W-Band Single-Layer Broadband Reflectarray Antenna
IEEE Access, 2023 In this paper, a W-band single-layer reflectarray antenna is proposed with the advantages of broadband and high aperture efficiency. A novel dual rotation-symmetry windmill element is designed in the W-band, which consists two layers of copper patches ...
Zhicheng Wang +6 more
doaj +1 more source
Design and Fabrication of a dual-polar reflector array antenna for satellite applications [PDF]
فصلنامه علوم و فناوری فضایی, 2020 This paper presents a new unit to design dual linearly polarized reflectarray antenna at ku for satellite telecommunication. Two orthogonal sets of parallel dipoles are used for each polarization to achieve more degree of freedom in the design and wider ...
Alireza HeshmatiMoez +3 more
doaj +1 more source
Using data projector in the methodology course class [PDF]
, 2020 This paper investigates the effect of using data projector in teaching "The methodology of English Language" course on the achievement of male students at Baghdad University in the 2018-2019 academic year. The sample of the study constituted 195 students
T. Salman, Hawraa, Yusoff, Zailin Shah
core +1 more source
Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges
IEEE AccessAs 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.
J. Annal Joy +5 more
doaj +1 more source
Dual-Layer Beamscanning Reflectarray Antenna Operating at Ku-Band
Journal of High-Frequency Communication Technologies, 2023 This paper presents a beam scanning electronically reconfigurable reflectarray configuration for Ku-band applications using a single varactor diode. A 15×15 center-fed reconfigurable reflectarray antenna is designed consisting of 225 octagonal shaped ...
Vidhyashree Suresh +2 more
doaj +1 more source
MEMS-reconfigurable metamaterials and antenna applications [PDF]
, 2014 This paper reviews some of our contributions to reconfigurable metamaterials, where dynamic control is enabled by micro-electro-mechanical systems (MEMS) technology.
Debogovic, Tomislav +1 more
core +3 more sources