Results 31 to 40 of about 291,893 (342)
Geometric Phase in Phasing of Antenna Arrays [PDF]
Symposium - International Astronomical Union, 2002 The response of a pair of differently polarized antennas is determined by their polarization states and a phase between them which has a geometric part which becomes discontinuous at singular points in the parameter space. Some consequences are described.
openaire +2 more sources
New method for testing of antenna phased array in X frequency range.
Journal of Physics: Conference Series, 2018 The results of the research of the developed fiber-optic transmission systems for analog high frequency signal are represented. On its basis, a new method to identify various structural defects in the active phased antenna arrays is elaborated.
V. Lenets +4 more
semanticscholar +1 more source
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
DIRECTIVITY OF ANTENNA ARRAYS [PDF]
Radio Physics and Radio Astronomy, 2016 Purpose: Theoretical investigation of directive gains of linear and planar antenna arrays depending on the distance between radiators and wavelength.
A. A. BulgakovŠ° +3 more
doaj +1 more source
Wi-Fi Access Point Design Concept Targeting Indoor Positioning for Smartphones and IoT
Sensors, 2022 Indoor positioning systems (IPS) have been regarded as essential for many applications, particularly for smartphones, during the past decade. With the internet of things (IoT), and especially device-to-device (D2D) cases, the client is supposed to have a
Mohamed S. El-Gendy +2 more
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
Microwave phased array for aerological radar [PDF]
ITM Web of Conferences, 2019 The use of radars with phased antenna arrays in aerological atmospheric sounding systems significantly increases the technical characteristics of the radio channel, ensures reliable auto-tracking in the near zone at high angular velocities of the ...
Shabunin Sergey +3 more
doaj +1 more source
Liquid Crystal Based Dielectric Waveguide Phase Shifters for Phased Arrays at W-Band
IEEE Access, 2019 In this work, the feasibility of microwave liquid crystal based dielectric waveguide phased shifters is investigated in a phased rod antenna array for the first time. For this, a $1\times 4$ rod antenna array is designed including the phase shifters as
R. Reese +8 more
semanticscholar +1 more source
Analysis of the influence of radiators basing errors in the monopulse phased array antenna aperture on its characteristics [PDF]
ITM Web of Conferences, 2019 The influence of radiators basing errors in the flat monopulse phased array antenna with spatial excitation on the beam forming accuracy is researched.
Rusov Yury
doaj +1 more source
Applied SciencesNew configurations of 2-D phased arrays are proposed in this paper for reducing the number of phase shifters. This design methodology is based on the use of a novel coherently radiating periodic structures (CORPSs) block for 2-D phased arrays.
Gilberto Calvillo +4 more
doaj +1 more source