Results 61 to 70 of about 6,760 (299)
Broadband Microwave Negative Group Delay Transmission Line Phase Shifters [PDF]
, 2012 The analysis and design of passive broadband negative group delay (NGD) transmission line phase shifters is presented. By extending the metamaterial transmission line concept to include loss, a NGD unit cell is proposed.
Keser, Sinan
core +3 more sources
Wide-Angle Scanning Antennas for Millimeter-Wave 5G Applications
Engineering, 2022 The fifth generation (5G) network communication systems operate in the millimeter waves and are expected to provide a much higher data rate in the multi-gigabit range, which is impossible to achieve using current wireless services, including the sub-6 ...
Raj Mittra +2 more
doaj +1 more source
Flux-tunable phase shifter for microwaves [PDF]
Scientific Reports, 2017 AbstractWe introduce a magnetic-flux-tunable phase shifter for propagating microwave photons, based on three equidistant superconducting quantum interference devices (SQUIDs) on a transmission line. We experimentally implement the phase shifter and demonstrate that it produces a broad range of phase shifts and full transmission within the experimental ...
Roope Kokkoniemi +8 more
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior +11 more
wiley +1 more source
Cylindrical Phase Shifters with Solid-state Plasma [PDF]
, 2012 The investigation results of n-InP cylindrical phase shifters with solid-state plasma are presented in this paper. Furthermore, dispersion characteristics of the main mode HE11 of phase shifters with different external dielectric layers are calculated ...
Plonis, D., Malisauskas, V.
core
Analysis and comparison of different phase shifters for Stirling pulse tube cryocooler [PDF]
, 2016 Investigations of phase shifters and power recovery mechanisms are of sustainable interest for developing Stirling pulse tube cryocoolers (SPTC) with higher power density, more compact design and higher efficiency.
Zhou, Wenjie +2 more
core +1 more source
International Journal of Antennas and Propagation, 2011 This paper describes a broadband printed cross-dipole element with four polarization reconfigurations (BPCDE_PR). The BPCDE_PR can configure two linear and two circular polarizations in the operating band of 1.7–2.5 GHz.
Soon-Young Eom +2 more
doaj +1 more source
IEEE Access, 2020 Phase shifters, often applied for analog beamforming in hybrid millimeter wave systems, are usually imperfect with random phase and gain errors brought by manufacture imperfections.
Wendi Wang +3 more
doaj +1 more source
Determining Parental Factors for Clinical Trial Attrition in Pediatric Acute Lymphoblastic Leukemia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background/Objectives Despite high enrollment rates on Children's Oncology Group (COG) protocols, attrition after initial consent is challenging, introducing bias and prolonging trial completion. While adult oncology literature has identified predictors of withdrawal, little is known about caregiver decision‐making for child participation in ...
Kimberly L. Stathas +3 more
wiley +1 more source
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015 The problem of technical implementation of phased array antennas (PAR) with the required radiation pattern (RP) is the complexity of the construction of the beam forming device that consists of a set of controlled attenuators and phase shifters.
A. V. Sadchenko +2 more
doaj +1 more source