Results 11 to 20 of about 93,179 (300)

Ultra-Wideband Differential Fed Hybrid Antenna With High-Cross Polarization Discrimination for Millimeter Wave Applications

IEEE Access, 2020
A wideband differential fed patch antenna with high cross-polarization discrimination is proposed at mm-wave range. For the purpose of increasing antenna bandwidth, capacitive coupling technique is used.
Magid Alzidani, Islam Afifi, Muftah Asaadi, Abdel-Razik Sebak   +3 more
doaj   +1 more source

Four-Arm Log-Periodic Toothed Antenna With Hybrid Reflector Composed of Inhomogeneous Metamatarial Elements for Electronic Support Measures

IEEE Access, 2023
A novel method of enhancing radiation performance is demonstrated by applying a hybrid reflector composed of inhomogeneous metamaterial elements to a four-arm log-periodic toothed antenna.
Donghyun Kim, Chan Yeong Park, Chang-Hyun Lee, Young Joong Yoon   +3 more
doaj   +1 more source

Plasmonic Antennas Hybridized with Dielectric Waveguides [PDF]

ACS Nano, 2012
For the purpose of using plasmonics in an integrated scheme where single emitters can be probed efficiently, we experimentally and theoretically study the scattering properties of single nano-rod gold antennas as well as antenna arrays placed on one-dimensional dielectric silicon nitride waveguides.
Arango, Felipe Bernal, Kwadrin, Andrej, Koenderink, A. Femius   +2 more
openaire   +3 more sources

Dual-Polarized High-Isolation Antenna Design and Beam Steering Array Enabling Full-Duplex Communications for Operation Over a Wide Frequency Range

IEEE Open Journal of Antennas and Propagation, 2021
A new dual-polarized antenna and array are presented for In-Band Full-Duplex (IBFD) applications, offering high inter-port isolation. The single-element antenna system consists of four H-shape slots, stacked patches for wide bandwidth, and two external ...
Maksim V. Kuznetcov, Symon K. Podilchak, Ariel J. McDermott, Mathini Sellathurai   +3 more
doaj   +1 more source

2D modeling of electromagnetic waves in cold plasmas [PDF]

, 2014
The consequences of sheath (rectified) electric fields, resulting from the different mobility of electrons and ions as a response to radio frequency (RF) fields, are a concern for RF antenna design as it can cause damage to antenna parts, limiters and ...
Crombé, Kristel, Koch, R, Kyrytsya, V, Van Eester, D   +3 more
core   +2 more sources

Bandwidth Enhancement for Half Mode Substrate Integrated Wave guide Antenna using Defected Ground Structures [PDF]

International Journal of Electronics and Telecommunications, 2023
The SIW antenna suffers from the narrow bandwidth for a single cavity and single resonant. Defected ground structure (DGS) with a dual cavity was the solution to solve narrow bandwidth by resulting in hybrid resonance.
Dian Widi Astuti, Rivayanto, Muslim, Imelda Simanjuntak, Teguh Firmansyah, Dwi Astuti Cahyasiwi, Yus Natali   +6 more
doaj   +1 more source

Slot-DRA-Based Independent Dual-Band Hybrid Antenna for Wearable Biomedical Devices

IEEE Access, 2019
A hybrid dual-band antenna, consisting of an L-shaped radiating slot and a cylindrical dielectric resonator antenna (CDRA) is proposed, simulated and experimentally validated in this paper.
Amjad Iqbal, Abdullah J. Alazemi, Nazih Khaddaj Mallat   +2 more
doaj   +1 more source

Manifold Learning Inspired Dynamic Hybrid Precoding With Antenna Partitioning Algorithm for Dual-Hop Hybrid FSO-RF Systems

IEEE Access, 2022
The decode-and-forward (DF) based free-space optical-radio frequency (FSO-RF) hybrid system combines the advantages of both FSO links and RF links, which makes the system easy to be deployed and enables the extended transmission coverage.
Xiaoping Zhou, Xudong Tian, Le Tong, Yang Wang   +3 more
doaj   +1 more source

Equilateral Triangular Dielectric Resonator and Metal Patch Hybrid Antenna for UWB Application

IEEE Access, 2019
This paper postulates a novel omnidirectional low-profile ultra-wideband (UWB) antenna, which is structured by discrete embedded dielectric resonator antenna with features of both low-profile dielectric resonator (DR) and thin planar monopole antenna ...
Zhiwei Song, Hongxing Zheng, Mengjun Wang, Yan Li, Tao Song, Erping Li, Yongjian Li   +6 more
doaj   +1 more source

Development of an arch antenna for LHCD in a spherical tokamak

Nuclear Fusion, 2023
A lower-hybrid frequency surface wave antenna called arch is designed and fabricated in this paper for the spherical tokamak named EXL-50. It is used to drive plasma current and heat plasma at 2.45 GHz.
Yaoyao Wang, Qing Zhou, Zhenxing Wang, Wendong Ma, Chengzhou Liu, Jiafang Shan   +5 more
doaj   +1 more source