Results 11 to 20 of about 291,893 (342)

Approaches to Overcome Challenges and Technology Bottlenecks of Geostationary Orbit high Throughput Satellite Payload Antenna [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2023
The antenna of a high throughput satellite payload should generate multiple spot beams simultaneously to provide frequency reuse by creating cellular coverage for the satellite. The phased array antenna is a proper option for this application.
elham sharifi   +2 more
doaj   +1 more source

Dual Polarized Wide-Angle Scanning Phased Array Antenna for 5G Communication System

open access: yesIEEE Transactions on Antennas and Propagation, 2022
A dual-polarized phased array antenna is presented with wide-angle scanning capability in this paper. To improve the mutual coupling in the array, a current cancellation method (CCM) is proposed by changing the current distribution on the excited unit to
Guangwei Yang, Shuai Zhang
semanticscholar   +1 more source

Sub‐array level structural compensation method for radiating and scattering performance of array antennas

open access: yesIET Microwaves, Antennas & Propagation, 2023
The detection and stealth abilities of array antennas depend mainly on the antennas' radiating and scattering performance, respectively. However, the operating environmental loads and assembly lead to serious structural errors, including deformation and ...
Yan Wang   +10 more
doaj   +1 more source

Coherently Radiating Periodic Structures to Reduce the Number of Phase Shifters in a 2-D Phased Array

open access: yesSensors, 2021
This paper illustrates the application of CORPS (coherently radiating periodic structures) for feeding 2-D phased arrays with a reduced number of phase shifter (PS) devices. Three design configurations using CORPS are proposed for 2-D phased arrays.
Elizvan Juárez   +3 more
doaj   +1 more source

A compact SiGe D-band power amplifier for scalable photonic-enabled phased antenna arrays

open access: yesScientific Reports, 2023
To address the rising demand for high-speed wireless data links, communication systems operating at frequencies beyond $${100}\,\hbox {GHz}$$ 100 GHz are being targeted. A key enabling technology in the development of these wireless systems is the phased
Reinier Broucke   +6 more
doaj   +1 more source

Wide-Band and Wide-Angle Scanning Phased Array Antenna for Mobile Communication System

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
A wide-band phased array antenna with wide-angle scanning capability for mobile communication system is proposed in this article. An air cavity is properly embedded into the substrate under each array element.
Guangwei Yang   +2 more
semanticscholar   +1 more source

Test Reduction for Power Density Emitted by Handset mmWave Antenna Arrays

open access: yesIEEE Access, 2021
The exposure to electromagnetic field (EMF) from phased antenna arrays integrated into wireless devices operating at the millimeter-wave (mmWave) part of the spectrum should be evaluated in terms of power density (PD).
Stanislav Stefanov Zhekov   +3 more
doaj   +1 more source

Physical Limitations of Phased Array Antennas [PDF]

open access: yesIEEE Transactions on Antennas and Propagation, 2021
12 pages, 11 ...
Andrei Ludvig-Osipov   +3 more
openaire   +2 more sources

Low Discrepancy Sparse Phased Array Antennas [PDF]

open access: yesSensors, 2021
Sparse arrays have grating lobes in the far field pattern due to the large spacing of elements residing in a rectangular or triangular grid. Random element spacing removes the grating lobes but produces large variations in element density across the aperture. In fact, some areas are so dense that the elements overlap.
Travis Torres   +4 more
openaire   +4 more sources

A Review of Synthesis Techniques for Phased Antenna Arrays in Wireless Communications and Remote Sensing

open access: yesInternational Journal of Antennas and Propagation, 2021
Electronically controlled antenna arrays, such as reconfigurable and phased antenna arrays, are essential elements of high-frequency 5G communication hardware.
Stanislav Ogurtsov   +2 more
doaj   +1 more source

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