Results 51 to 60 of about 40,172,602 (340)

Compact Wideband Dual-Polarized Antenna With High Isolation Using Modified Direct Feeding Structure For Indoor Beamforming Array Applications

open access: yesIEEE Access, 2018
A modified direct feeding structure is proposed in this paper to realize a compact ( $45 \times 45$ mm2) wideband dual-polarized antenna with high isolation (33 dB) and low cross-polarization (30 dB).
Yaohui Zhang   +3 more
doaj   +1 more source

A Multi-Port Pattern Diversity Antenna With High Isolation

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
A pattern-diversity antenna with 7 ports is proposed for multiple-input multiple-output (MIMO) applications. Orthogonal modes are utilized to achieve high isolation among all 7 ports in a relatively compact shared volume.
Nghia Nguyen-Trong, Christophe Fumeaux
doaj   +1 more source

Impact of the SARS-CoV-2 Pandemic on the Prevalence and Incidence of Enteric Protozoa in a Spanish Tertiary-Care Hospital and a Referral Center for Tropical Diseases, 2019–2023

open access: yesMedical Sciences
Objetive: The aim of this study was to describe the impact of non-pharmaceutical interventions (NPIs) against SARS-CoV-2 in patients with symptoms of enteric protozoa (EP), including Blastocystis spp., Dientamoeba fragilis, Giardia lamblia ...
Alfredo Maldonado-Barrueco   +5 more
doaj   +1 more source

Design of metasurface absorber for low RCS and high isolation MIMO antenna for radio location & navigation

open access: yes, 2021
In this article, a novel metasurface absorber is designed for RCS reduction as well as high isolation in a 4-elements MIMO antenna. A unit cell of metasurface absorber is amalgamated by concentric circular and elliptical-shaped rings with four 300 ohms ...
Gaurav Saxena   +2 more
semanticscholar   +1 more source

High-Isolation UWB MIMO Antenna with Multiple X-Shaped Stubs Loaded between Ground Planes

open access: yesInternational Journal of Antennas and Propagation, 2021
A miniaturized ultra-wideband multiple-input multiple-output (UWB MIMO) two-port antenna with high isolation based on FR4 is designed in this article. The size of the antenna is only 18 × 28 × 1.6 mm3.
Ming-Huan Wang, Jing-Chang Nan, Jing Liu
semanticscholar   +1 more source

Compact UWB MIMO Filtennas with Dual Bandnotch, High Isolation and High Diversity [PDF]

open access: yes, 2016
This paper presents a 4x4 MIMO filtenna aimed for use with UWB applications. The MIMO filtenna is simulated, fabricated and measured. Obtained simulation and measurement results agree well with each other and have been presented to validate the accuracy ...
Budimir, D.   +5 more
core   +1 more source

How Imported Pathology Becomes Overlooked as Resources Increase: An Example of a Neglected Tropical Disease (NTD)

open access: yesTropical Medicine and Infectious Disease
This case report highlights how neglected tropical diseases (NTDs) may remain underdiagnosed in high-resource settings despite advanced healthcare systems. We describe an 18-year-old woman from Equatorial Guinea living in Spain who presented with chronic
Fernando de la Calle-Prieto   +4 more
doaj   +1 more source

Pharmaceutical Strategies for West Nile Virus in Europe, an Underrecognized Cause of Severe Disease and Mortality in Older Adults: From Supportive Care to Antiviral Development

open access: yesPharmaceuticals
West Nile Virus (WNV) is becoming a significant and enduring public health menace in Europe, propelled by climate changes and accelerated population aging. Most infections are asymptomatic but older adults are more prone to develop neuroinvasive disease,
Luca Soraci   +13 more
doaj   +1 more source

A Broadband Balun With Complex Impedance Transformation and High Isolation

open access: yesIEEE Access, 2019
The design of baluns with wide bandwidth, transformation between complex source and load impedances, and high isolation is presented in this paper. These features can be accomplished simultaneously by employing double-stub couple lines (DSCL).
Eric S. Li   +3 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Home - About - Disclaimer - Privacy