Results 31 to 40 of about 36,933 (358)
Phased Antenna Array Implementation with USRP [PDF]
2017 IEEE Globecom Workshops (GC Wkshps), 2017 This paper presents the implementation of a phased antenna array with Universal Software Radio Peripheral (USRP). The antenna elements of the array are driven by individual USRP platforms. Hence, the synchronization and calibration of different platforms are required in phase and amplitude.
Sonkki Marko Tapani +2 more
openaire +2 more sources
Phased-Array antenna beam squinting related to frequency dependency of delay circuits [PDF]
, 2011 -Practical time delay circuits do not have a perfectly linear phase-frequency characteristic. When these delay circuits are applied in a phased-array system, this frequency dependency shows up as a frequency dependent beam direction (“beam squinting ...
Garakoui, Seyed Kasra +3 more
core +4 more sources
An applicable 5.8 GHz wireless power transmission system with rough beamforming to Project Loon
ICT Express, 2016 In recent, Google proposed the Project Loon being developed with the mission of providing internet access to rural and remote areas using high-altitude balloons.
Chang-Jun Ahn
doaj +1 more source
Hybrid Parasitic Linear Array Antenna for Fine Beamsteering Applications
IEEE Access, 2021 This paper presents an antenna that utilizes two beam steering techniques in concert in order to improve the antenna gain and steering resolution. Phased array steering is employed to achieve coarse resolution beam steering while parasitic steering is ...
Iyemeh E. Uchendu +3 more
doaj +1 more source
A Compact Hemispherical Beam-Coverage Phased Array Antenna Unit for 5G mm-Wave Applications
IEEE Access, 2020 A compact low-profile phased array antenna unit with unidirectional hemispherical beam-coverage for 5G mm-wave applications is proposed in this paper.
Jihoon Bang, Jaehoon Choi
doaj +1 more source
Quadcopter active phased antenna array
Procedia Computer Science, 2021 Abstract Group use of unmanned aerial vehicles (UAVs) for various purposes allows obtaining many of advantages in various tasks solvation. New advantages of UAVs group use are due the difficulty of separate observation of the group members and, accordingly, the difficulties of tracking and target distribution; the inability to serve the entire large ...
D.A. Milyakov +3 more
openaire +1 more source
IEEE Open Journal of Antennas and Propagation, 2020 We propose a 1D beam steering high gain hybrid reflector-phased array antenna system for enhanced data rate wireless communication at Ku-band (12 - 14 GHz). The proposed hybrid antenna system consists of a D = 50 cm offset parabolic-cylindrical reflector
Ghanshyam Mishra +3 more
doaj +1 more source
Sensors, 2022 This paper presents the application of CORPS (coherently radiating periodic structures) for feeding CRA (concentric rings array) with a reduced number of phase shifters.
Brian Sanchez +4 more
doaj +1 more source
Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin
Molecular Oncology, EarlyView.The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla +10 more
wiley +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source