Results 51 to 60 of about 28,237 (188)

Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components

IEEE Open Journal of Antennas and Propagation
We fully explore the properties of a novel uniplanar metamaterial-inspired substrate integrated waveguide (SIW) for realizing easy-to-fabricate mmWave components.
Maria-Thaleia Passia, Traianos V. Yioultsis   +1 more
doaj   +1 more source

Clinical Implications for Management of Falls in Hospital Patients with Communication Disability After Stroke: A Qualitative Meta‐Synthesis

Journal of Advanced Nursing, Volume 82, Issue 1, Page 290-302, January 2026.
ABSTRACT Background Falls in hospital are a common patient safety incident after stroke. Despite the reprevalence of communication disability following stroke, there is little guidance for health professionals to provide effective falls prevention strategies for this population.
Rebecca Sullivan, Katherine Harding, Ian W. Skinner, Bronwyn Hemsley   +3 more
wiley   +1 more source

Performance of a New Design Based on Substrate-Integrated Waveguide Slotted Antenna Arrays for Dual-Band Applications (Ku / K) [PDF]

Journal of Communications Software and Systems, 2020
This paper introduces and discusses the study of a new concept for SIW array antenna development. This conducted development is based on three designs, two of them related to 1x2 arrays fed by SIW line, combined with SIW inset line, and the last designed
Turkiya Abes, Keltouma Nouri, Boubaker Seddik Bouazza, Kada Becharef   +3 more
doaj  

Compact cavity-backed antenna on textile in substrate integrated waveguide (SIW) technology [PDF]

, 2013
In this paper a folded cavity-backed patch antenna implemented in substrate integrated waveguide (SIW) technology is presented. The antenna has been designed to operate at 2.45 GHz, in the industrial, scientific and medical (ISM) frequency band, and a ...
Agneessens, Sam, Bozzi, Maurizio, Moro, Riccardo, Rogier, Hendrik   +3 more
core   +1 more source

Uniform Circular Array Antenna for Dual‐Mode Orbital Angular Momentum Generation at 6 GHz

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
Orbital angular momentum (OAM) antennas have recently attracted attention for their potential to enhance communication capacity and and robustness against interference. However, most existing designs rely on complex multilayer feed structures. This work presents a compact, single‐layer, series‐fed dual‐mode OAM antenna composed of four patches arranged
Abdulkadir Uzun, Ibrahim Tekin, Piotr Gas   +2 more
wiley   +1 more source

A Flexible Design Cross‐Coupled SIW Bandpass Filter With Different Path Loads Using Mixed‐Coupling Topology

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper presents an innovative coupling design for a bandpass substrate integrated waveguide (SIW) filter, enabling high selectivity and facilitating flexible design. The proposed filter design has two parts: one is a mixed coupling structure, and the second part is a cross‐coupling path.
Govind Kumar Mishra, Hemendra Kumar Pandey, Nagendra Prasad Pathak, Mohammad Rezwan Habib   +3 more
wiley   +1 more source

Performance analysis of a novel metamaterial-inspired substrate-integrated cavity for 5G applications

EPJ Applied Metamaterials
The functionality of a fully planar metamaterial-inspired substrate-integrated cavity is thoroughly investigated in the present work. The electromagnetic field confinement of the proposed device is realized with the utilization of broadside-coupled ...
Amanatiadis Stamatis, Salonikios Vasileios, Kantartzis Nikolaos, Yioultsis Traianos   +3 more
doaj   +1 more source

Design and Implementation of a New 4 × 4 BFN Using Multi‐Aperture and Multislot Coupler for 5G Application

International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.
This paper proposes a 4 × 4 beamforming network (BFN) using a novel configuration. The proposed architecture utilizes a two‐layer multi‐aperture and multislot coupler (MA/MSC). Power coupling between ports within each layer is achieved through designed apertures.
H. Hassanshahi, M. Jafari Shahbazzadeh, M. Eslami, H. Zayandehroodi, Ali Gharsallah   +4 more
wiley   +1 more source

LETTERER-SIWE'S DISEASE

American Journal of Diseases of Children, 1936
In reviewing the literature in an attempt to identify the condition in the case which we are here reporting, we have found that Letterer,1in 1924 under the title "Aleukamische Retikulose (Ein Beitrag zu den proliferativen Erkrankungen des Retikuloendothelialapparates)," described the occurrence of splenohepatomegaly, associated with anemia, and a ...
ARTHUR F. ABT, EDWARD J. DENENHOLZ
openaire   +3 more sources

Mussel‐Inspired Molecular Strategies for Fabricating Functional Materials With Underwater Adhesion and Self‐Healing Properties

Advanced Materials, Volume 37, Issue 51, December 23, 2025.
This review systematically examines the nanomechanical mechanisms of mussel‐inspired molecular interactions, primarily investigated by direct force measurement techniques such as surface forces apparatus and atomic force microscopy. The macroscopic adhesive and self‐healing performances of mussel‐inspired functional materials, including coacervates ...
Pan Huang, Hongjian Zhang, Hongbo Zeng
wiley   +1 more source