Results 21 to 30 of about 2,461 (257)

Geometric Phase in Phasing of Antenna Arrays [PDF]

open access: yesSymposium - 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

Simulation and experimental measurement of digital multi-beamforming phased antenna array in the frequency range C

open access: yesResults in Physics, 2019
The selection of element for constructing a phased array antenna was carried out. It provides a relative frequency bandwidth up to 9% for the transmitting or receiving part in wireless communication system.
Lu Guoming   +2 more
doaj   +1 more source

Wide‐angle scanning phased array using wide‐beamwidth dielectric resonator antenna with miniaturised radiator

open access: yesElectronics Letters, 2022
A wide‐beamwidth dielectric resonator antenna with small radiator is used to design a wide‐angle scanning phased array. The proposed dielectric resonator antenna element uses concave structure for wide‐beamwidth, and the metal patches on the top of the ...
Yeqing Yin, Qinlong Li, Xiaoming Chen
doaj   +1 more source

A Phased Array Antenna with Novel Composite Right/Left-Handed (CRLH) Phase Shifters for Wi-Fi 6 Communication Systems

open access: yesApplied Sciences, 2023
A linear phased array antenna excited with a novel composite right/left-handed (CRLH) phase shifters structure is proposed. The phase of the conventional CRLH transmission line is controlled with magnetically aligned micron-sized particles embedded ...
Muhammad Ayaz, Irfan Ullah
doaj   +1 more source

An applicable 5.8 GHz wireless power transmission system with rough beamforming to Project Loon

open access: yesICT 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

A Compact Hemispherical Beam-Coverage Phased Array Antenna Unit for 5G mm-Wave Applications

open access: yesIEEE 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

Hybrid Parasitic Linear Array Antenna for Fine Beamsteering Applications

open access: yesIEEE 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

Coherently Radiating Periodic Structures for Feeding Concentric Rings Array with Reduced Number of Phase Shifters

open access: yesSensors, 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

Identification and characterisation of calcitonin receptor isoforms expressed in glioblastoma derived glioma stem and U‐87 MG cells

open access: yesFEBS Open Bio, EarlyView.
Glioblastoma cells express calcitonin receptor variants (CT receptor isoforms) that may help them survive stress. Using qPCR, transcript‐specific long‐read nanopore sequencing, immunofluorescence co‐localisation and comparative sequence analysis, this study identifies a novel alternatively spliced CALCR transcript that encodes the CTb receptor isoform ...
Pragya Gupta   +7 more
wiley   +1 more source

Ku-Band Dual Linear-Polarized 1-D Beam Steering Antenna Using Parabolic-Cylindrical Reflector Fed by a Phased Array Antenna

open access: yesIEEE 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

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