Results 21 to 30 of about 23,483,289 (298)
International journal of RF and microwave computer-aided engineering, 2021 A compact size, coplanar waveguide (CPW) fed two‐antenna multiple input multiple output (MIMO) with high isolation and excellent impedance matching operating in n77/n78/n79 5G NR sub‐6 GHz/Wi‐Fi‐5/V2X/DSRC/Wi‐Fi‐6/INSAT‐C is proposed for future wireless ...
J. Kulkarni, Arpan H. Desai, C. Sim
semanticscholar +1 more source
Journal of Infection and Public Health, 2020 Crimean-Congo haemorrhagic fever (CCHF) is a widely distributed tick-borne disease. In Spain, the disease has emerged as outbreak associated with high-risk exposures. Our goal was to evaluate the prevalence of antibodies against the CCHF virus (CCHFV) in
Pello Latasa +19 more
doaj +1 more source
IEEE Transactions on Antennas and Propagation, 2021 A high-isolation Fabry–Pérot (FP) antenna array with wide bandwidth and high gain is proposed for Ku-band vehicle satellite communications. Each antenna element consists of a pair of tandem circular parasitic patches (TCPPs), a radial gradient partially ...
Wensong Wang, Yuanjin Zheng
semanticscholar +1 more source
High-Isolation In-Band Full-Duplex Cavity-Backed Slot Antennas in a Single Resonant Cavity
IEEE Transactions on Antennas and Propagation, 2021 High-isolation in-band full-duplex (IBFD) cavity-backed slot antennas (CBSAs) in a single resonant cavity are presented in this article. The TE101 and TE011 cavity modes combined with a modified orthogonal feeding structure are first used to design the ...
Rui‐Sen Chen +7 more
semanticscholar +1 more source
Mathematics, 2022 A novel ultra-wideband (UWB) KAYI-shaped and common KITE-shaped ground plane tri-port antenna is proposed. The proposed research work has a small size of (30 × 30 × 1.6 mm3).
Shahid Basir +4 more
doaj +1 more source
Wireless networks, 2022 In this paper, a miniaturized size UWB 4-element MIMO antenna with a band rejection feature is introduced. The four elements have a rectangular radiator with curved edges and a partial ground plane with an etched slot to enlarge the bandwidth of the ...
A. Ibrahim, M. F. Abo Sree
semanticscholar +1 more source
IEEE Transactions on Antennas and Propagation, 2021 In this article, a high-isolation dual-polarized leaky-wave antenna (LWA) with a fixed beam is proposed for full-duplex millimeter-wave (mm-wave) applications.
Qi-Cheng Ye +4 more
semanticscholar +1 more source
A Compact Dual Circularly Polarized Antenna With Wideband Operation and High Isolation
IEEE Access, 2020 This paper presents a dual-sense circularly polarized (CP) antenna with compact size, high isolation, and wideband characteristics. The antenna consists of a microstrip patch, an array of parasitic metal plates positioned around the patch, and a 90 ...
Huy Hung Tran +2 more
doaj +1 more source
Performance Enhancement of MIMO Patch Antenna Using Parasitic Elements
IEEE Access, 2021 This paper investigates the effects of parasitic elements on the performance of MIMO patch antenna. Multiple square parasitic elements are added in close proximity to each of the rectangular patch elements.
Huy Hung Tran, Nghia Nguyen-Trong
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Genetic and phenotypic divergence in an island bird: isolation by distance, by colonization or by adaptation? [PDF]
, 2014 Discerning the relative roles of adaptive and nonadaptive processes in generating differences among populations and species, as well as how these processes interact, is a fundamental aim in biology.
Dawson, Deborah A. +4 more
core +2 more sources