Results 11 to 20 of about 639,513 (288)
Dielectric Lens Antennas [PDF]
, 2015 Dielectric lens antennas are attracting a renewed interest for millimeterand submillimeter-wave applications where they become compact, especially for configurations with integrated feeds usually referred as integrated lens antennas. Lenses are very flexible and simple to design and fabricate, being a reliable alternative at these frequencies to ...
Fernandes, C. A. +2 more
openaire +4 more sources
Multimode and Multiband Microstrip Antennas [PDF]
, 2007 This thesis describes original work on the broadband and multiband matching of microstrip patch antennas. Microstrip patch antennas suffer from many constraints on their performance. One major restriction is their narrow impedance bandwidth.
Abunjaileh, Alaa Ibrahim
core +7 more sources
Dielectric Lens Antennas for 300-GHz Applications [PDF]
, 2021 Implementation of proper wireless links at submillimetre-wave and terahertz (THz) frequencies requires high-gain antennas. This simulation-based study investigates the performance of dielectric lenses and their feed antennas at 300 GHz.
Jiangcheng Chen +7 more
core +1 more source
Geodesic Lens Antennas for 5G and Beyond
IEEE Communications Magazine, 2022 This article summarizes the recently discovered opportunities of geodesic lenses for producing high-performing antennas for 5G/6G communications. First, we explain the operation of these lenses based on Geometrical Optics with rays that follow “the shortest optical path” on the geodesic surface.
Quevedo-Teruel, Oscar +6 more
openaire +4 more sources
Parametric Analysis of Negative and Positive Refractive Index Lens Antenna by ANSYS HFSS
International Journal of Antennas and Propagation, 2020 Lens antennas with multibeam, high gain, and low sidelobe level are potential candidates for base station antennas in 5G mobile communication. In this paper, the authors perform simulation and parametric analysis of a lens antenna with positive and ...
Phan Van Hung +4 more
doaj +1 more source
Integrated optical beam steering device using switchable nanoantennas and a reflective metalens
Scientific Reports, 2023 In this paper, an integrated optical device is proposed in which a reflective meta-lens and five switchable nano-antennas are combined to provide optical beam steering at the standard telecommunication wavelength of 1550 nm.
Vahid Ghaffari, Leila Yousefi
doaj +1 more source
IET Microwaves, Antennas & Propagation, 2022 This paper presents a framework for achieving machine learning (ML)‐assisted direction‐of‐arrival (DoA) accuracy enhancement using a millimetre‐wave (mmWave) dynamic aperture.
Muhammad Ali Babar Abbasi +7 more
doaj +1 more source
A single‐layer circularly polarized planar lens antenna at millimetre‐wave
IET Microwaves, Antennas & Propagation, 2022 This paper proposes a novel single‐layer planar lens antenna with the capability of keeping circular polarization (CP) of the incoming CP wave and enhanced gain for millimetre‐wave applications. Because of the symmetric design of the lens unit cell, a 90‐
Samaneh Sadeghi‐Marasht +3 more
doaj +1 more source
IEEE Access, 2022 Recent work has proposed that millimeter-wave beam steering antennas consisting of lens antenna subarrays (LASs) reduce hardware complexity. This manuscript extends the concept to 2D beam steering with extended hemispherical dielectric lenses (EHDLs). To
Kiran A. Shila, Gokhan Mumcu
doaj +1 more source
A reconfigurable H-shape antenna for wireless applications [PDF]
, 2010 The official published version of this article can be obtained from the link below - Copyright @ EuCAP2010This paper presents a novel H-Shaped reconfigurable microstrip patch antenna fed by a Grounded Coplanar Waveguide (GCPW) for wireless applications.
AbuTarboush, HF +4 more
core +6 more sources