Results 41 to 50 of about 4,189,896 (296)
35 GHz phased array antenna using DMTL phase shifters
, 2010 This paper presents the design of a monolithic phased array antenna with DMTL phase shifters on quartz substrate operating at 35 GHz. The design integrates DMTL phase shifters, rectangular slot antennas with the feed network comprising CPW lines, CPW T ...
Aydın Çivi, Hatice Özlem +11 more
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Compact Multi-Wideband Array for Millimeter-Wave Communications Using Squint Beams
IEEE Access, 2020 Millimeter-wave (mmWave) cellular systems leverage the hybrid analog-digital structure to balance the costs and the capacity performance by using fewer Radio Frequency (RF) chains and the spatial sparsity of the channel.
Xiaoliang Pan +4 more
doaj +1 more source
A Frequency Independent Phase Shifter
Acoustics, 2023 A frequency-independent phase shift is determined such that two phase shifted versions of a signal can be summed whereby the resulting amplitude spectrum is unchanged. A phase difference between two signals is thus defined which remains constant for all frequencies within a given range.
Máté Csanád +2 more
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin +2 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
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +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
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
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