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
Dual-Polarization Ku-Band Compact Spaceborne Antenna Based on Dual-Reflectarray Optics
Sensors, 2018 This article demonstrated an accurate analysis technique for dual-reflectarray antennas that take into account the angle of incidence of the impinging electric field on the main reflectarray cells. The reflected field on the sub and the main reflectarray
Carolina Tienda +3 more
doaj +1 more source
A Low Profile Planar Dual-Polarized Tightly Coupled Dipole Reflectarray With 5:1 Bandwidth
IEEE Open Journal of Antennas and Propagation, 2022 This work introduces an extremely low profile ( $0.4\lambda _{high}$ ) planar ultra-wideband dual-polarized reflectarray. The unit-cell structure of the array is modular in nature, and without any electrical connection between adjacent unit-cells.
Muhammad Hamza +2 more
doaj +1 more source
Efficient Spectral Domain MoM for the Design of Circularly Polarized Reflectarray Antennas Made of Split Rings [PDF]
, 2019 The method of moments (MoM) in the spectral domain is used for the analysis of the scattering of a plane wave by a multilayered periodic structure containing conducting concentric split rings in the unit cell.
Encinar, José A. +2 more
core +1 more source
Improved thresholding and quantization techniques for image compression [PDF]
, 2017 In recent decades, digital images have become increasingly important. With many modern applications use image graphics extensively, it tends to burden both the storage and transmission process.
Dr. Muhammad Masruri, Dr. Muhammad Masruri +5 more
core +1 more source
Gradient metasurfaces: a review of fundamentals and applications [PDF]
, 2017 In the wake of intense research on metamaterials the two-dimensional analogue, known as metasurfaces, has attracted progressively increasing attention in recent years due to the ease of fabrication and smaller insertion losses, while enabling an ...
Bozhevolnyi, Sergey I. +2 more
core +2 more sources
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
semanticscholar +1 more source
Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review
, 2013 Advances in reflectarrays and array lenses with electronic beam-forming capabilities are enabling a host of new possibilities for these high-performance, low-cost antenna architectures.
Hum, Sean Victor +1 more
core +1 more source
Electromagnetically Controlled Beam-Steerable Reflectarray Antenna
IEEE Transactions on Antennas and Propagation, 2023 A beam-steerable 2 bit reflectarray antenna with an electromagnetic control mechanism is presented in this communication. The phase reflection of the proposed 2 bit reflectarray unit elements is altered by moving two pins between a patch and the ground ...
D. E. Serup, G. Pedersen, Shuai Zhang
semanticscholar +1 more source
Approximate Analytical Technique to Design Reflectarray Antenna
Advanced Electromagnetics, 2016 This paper presents an analysis and design for a reflectarray antenna composed of an array of rectangular patches printed on a grounded dielectric slab.
H. M. Yamani +2 more
doaj +1 more source