|
|
|
|
|
Albert Sabban
The development of compact passive and active wearable circular patch metamaterials antennas for communication, Internet of Things (IoT) and biomedical systems is presented in this paper. Development of compact efficient low-cost wearable antennas are on...
ver más
|
|
|
|
|
|
|
|
|
|
|
Walter Fuscaldo, Dimitrios C. Zografopoulos, Francesca Imperato, Paolo Burghignoli, Romeo Beccherelli and Alessandro Galli
The tunable properties of nematic liquid crystals (NLC) are here exploited in a peculiar leaky waveguide with artificial magnetic conductors as the lateral walls, a bottom metal ground plane, and a homogenized metasurface on top to obtain dynamic beamste...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jinjing Ren, Hezhihan Fan, Qi Tang, Zhongyuan Yu, Yang Xiao and Xiang Zhou
Enlarging or reducing the antenna beam width of antennas can improve the positioning capability of detection systems. A miniaturized and easily fabricated ultra-wideband (UWB) antenna system for long-distance electromagnetic detection is proposed in this...
ver más
|
|
|
|
|
|
|
|
|
|
|
Álvaro Somolinos, Rafael Florencio, Iván González and Felipe Cátedra
Multi-beams antennas are currently being used for direct broadcast satellite, personal communication satellite, military communication satellite, and high-speed internet applications. In this work, a circularly polarized (CP) multi-spot beam satellite pa...
ver más
|
|
|
|
|
|
|
|
|
|
|
Albert Sabban
The development of compact wearable antennas and transceivers for communication, IoT (Internet of Things), and biomedical systems will be presented in this paper. Development of Compact efficient wearable antennas is one of the major challenges in develo...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ping Tan, Tinaye Hamufari Tsinakwadi, Zhe Xu and He Xu
RFID localization methods have been widely used in indoor positioning systems (IPS). Most localization techniques involve the use of multiple antennas and the placement of antennas and readers in order to ensure accurate positioning results. However, mos...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kichul Kim, Seongmin Pyo and Jinwoo Jung
With increasing interest in the W-band, there is growing focus on parabolic reflector antennas that are known for efficiently inducing high-gain radiation characteristics. There is particular focus on parabolic antennas with diverse defocus-fed applicati...
ver más
|
|
|
|
|
|
|
|
|
|
|
Amani Cherif, Mohamed Himdi, Xavier Castel, Quentin Simon, Saber Dakhli and Fethi Choubani
In this paper, we present a study on a broadband transparent tapered slot antenna. In general, the objective of achieving optical transparency is to enable antennas to seamlessly integrate into windows, offering an aesthetically pleasing and inconspicuou...
ver más
|
|
|
|
|
|
|
|
|
|
|
Boyapati Bharathidevi, Jayendra Kumar
Pág. 210 - 218
|
|
|
|
|
|
|
|
|
|
|
Hsiao-Ching Chang, Hsing-Tsung Lin and Pi-Chung Wang
With the rapid development of the Internet of Things, the number of wireless devices is increasing rapidly. Because of the limited battery capacity, these devices may suffer from the issue of power depletion. Radio frequency (RF) energy harvesting techno...
ver más
|
|
|
|
|
|
|
|
|
|
|
Adnan Alhaj Hasan, Aleksey A. Kvasnikov, Dmitriy V. Klyukin, Anton A. Ivanov, Alexander V. Demakov, Dmitry M. Mochalov and Sergei P. Kuksenko
This paper focuses on antenna modeling using wire-grid and surface triangulation as two of the most commonly used MoM-based approaches in this field. A comprehensive overview is provided for each of them, including their history, applications, and limita...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yangyang Zhang, Huijie Liu and Xingfu Liu
This work investigates the effects of the surface errors of the satellite antenna on the detection performance of the space VLBI system. First, the relationship between the surface errors and the antenna gain loss is analyzed, and then the influence of t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vamshi Kollipara, Samineni Peddakrishna
Pág. 242 - 257
Characteristic mode analysis (CMA) can be used in antenna designs to solve radiation problems. This review focuses on the existing development methodologies for circularly polarized (CP) antennas and their axial ratio bandwidth (ARBW) improvement using C...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vamshi Kollipara, Samineni Peddakrishna
Pág. 242 - 257
Characteristic mode analysis (CMA) can be used in antenna designs to solve radiation problems. This review focuses on the existing development methodologies for circularly polarized (CP) antennas and their axial ratio bandwidth (ARBW) improvement using C...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kazuhide Hirose, Kohei Nakamura and Hisamatsu Nakano
We analyze three transmission-line antennas using the moment method. Each line antenna comprises a coplanar feed line, loops, and straight segments connecting the loops and feedline. First, we investigate bent and branched line antennas with loops on one...
ver más
|
|
|
|
|
|
|
|
|
|
|
Veton Hamza, Bojan Stopar, Toma? Ambro?ic and Oskar Sterle
Low-cost Global Navigation Satellite System (GNSS) receivers are currently used in various engineering applications. These low-cost devices are regarded as suitable sensors for applications in areas with a high risk of instrument damage. The main objecti...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yerim Oh, Dongkwon Choi, Jae-Yeong Lee and Wonbin Hong
A Wheeler method for the evaluation of the radiation efficiency of submerged antennas within lossy media is presented and demonstrated for the first time in the literature. Extensive investigations have been devised by empirical and simulation methods. N...
ver más
|
|
|
|
|
|
|
|
|
|
|
Santi Concetto Pavone, Giorgio Sebastiano Mauro, Loreto Di Donato and Gino Sorbello
In this paper, we present the design and fabrication of two dual circularly polarized (CP) patch antennas that can be profitably used as feeders for reflector systems normally adopted for satellite applications. In the first part of the manuscript, we pr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xin Jiang and Zhengfeng Bai
The dynamics of mesh reflectors are characterized by large deformation when antennas undergo a large motion in the deployment process. In this work, absolute node coordinate formulation (ANCF), with the merit of precise description of large deformation, ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Mohammed Sait, Valerio Mazzone and Andrea Fratalocchi
Computer-generated holograms have wide applications in different fields of optics, ranging from imaging, data storage, to security.Herein, we report a new method for the fabrication of large-scale computer-generated holograms from an inexpensive material...
ver más
|
|
|
|
|
|