Results 21 to 30 of about 1,523,975 (218)
IEEE Access, 2018 In this paper, an aperture efficient wideband high-gain patch antenna is designed using a novel multilayer-based metamaterial structure combined with a reactive impedance surface (RIS)-backed patch antenna.
Basudev Majumder +2 more
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IEEE Access, 2019 The development of wireless and satellite communication has led to a demand for high-performance microwaves and mm-wave components in terms of cost, losses, and fabrication complexity.
Syed M. Sifat +3 more
doaj +1 more source
High Refractive Index Metamaterial Superstrate for Microstrip Patch Antenna Performance Improvement
Frontiers in Physics, 2020 We propose a high refractive index metamaterial (HRIM)that is composed of two identical patch arrays symmetrically etched on both sides of a dielectric plate.
Xi Gao, Yan Zhang, Simin Li
doaj +1 more source
IET Microwaves, Antennas & PropagationThis paper proposes a polarisation‐insensitive absorptive metamaterial unit cell that achieves a perfect absorption of circularly polarised (CP) incident waves. To overcome the miniaturisation limitations inherent in conventional metamaterial designs, an
Guanjun Wang +4 more
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High-Gain Dual-Band Dual-Sense Circularly Polarized Spiral Series-Fed Patch Antenna
IEEE Open Journal of Antennas and Propagation, 2022 This paper demonstrates a dual-band circularly polarized (CP) two-dimensional (2D) series-fed patch array antenna. The CP rotating sense in each band is opposite to each other, which makes them well-suited for the downlink and uplink in satellite ...
Nghia Nguyen-Trong +2 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
IEEE Access, 2018 A wideband small-footprint circularly polarized Fabry-Perot resonator antenna is presented in this paper. The design employs a partial reflecting surface (PRS) consisting of thin homogeneous dielectric slabs separated by a small air gap.
Nghia Nguyen-Trong +3 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks +5 more
wiley +1 more source
IEEE Open Journal of Industry ApplicationsThis article proposes a switched-coupled-inductor impedance source network integrating capacitor-winding-diode technology. Next, voltage-boost switched-coupled-inductor dc–dc converters based on the proposed impedance source network are deduced ...
Yuliang Ji, Lina Geng
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Cup‐like nuclei are a distinctive morphological feature observed in certain cases of acute lymphoblastic leukemia (ALL). We provide evidence that they characterize DUX4/ERG ALL independently of IKZF1 deletion and reveal marked mitochondrial accumulation in this ALL subset.
Chloé Arfeuille +9 more
wiley +1 more source