Results 11 to 20 of about 1,449,714 (389)
Simulation of Small Radio Telescope Antenna Parameters at Frequency of 1.42 GHz
Iraqi Journal of Physics, 2022 The paper presents an overview of theoretical aspects of small radio telescope antenna parameters. The basic parameters include antenna beamwidth, antenna gain, aperture efficiency, and antenna temperature.
Uday E Jallod +2 more
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WGM-Based Sensing of Characterized Glucose- Aqueous Solutions at mm-Waves
IEEE Access, 2020 A newly-developed commercial coaxial probe kit (DAK-TL) is used to characterize the electromagnetic properties of glucose-loaded samples prepared at a range of concentrations 0.7-1.2 mg/ml similar to Type-2 normal diabetics in a broad range of ...
Ala Eldin Omer +3 more
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IEEE Access, 2022 Radio wave coverage in open-confined mixed space along the railway is studied in this paper. The space along the railway can be classified into three kinds of spaces, that are, open space, confined space and the open-confined mixed space.
Zhenyu Zhao, Junhong Wang, Weibin Hou
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Methods for determining the phase difference of the output signals for the receiving elements of a phased antenna array in a radiophoton circuit with parallel and series pairwise connection of electro-optical modulators [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 Obtaining accurate phase values of the output signals for the receiving elements of a phased array antenna is one of the crucial issues relating to radio-photon technologies in radar and radio communication.
Yaroslav N. Gusenitsa +3 more
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Blood Glucose Level Monitoring Using an FMCW Millimeter-Wave Radar Sensor
Remote Sensing, 2020 In this article, a novel sensing approach is presented for glucose level monitoring where a robust low-power millimeter(mm)-wave radar system is used to differentiate between blood samples of disparate glucose concentrations in the range 0.5 to 3.5 mg/mL.
Ala Eldin Omer +3 more
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Известия высших учебных заведений России: Радиоэлектроника, 2023 Introduction. Achieving improved accuracy and sensitivity of the direction finding of radio signals represents a relevant research direction in the field of modern HF radio monitoring.
G. S. Gribov
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Safe Helicopter Landing on Unprepared Terrain Using Onboard Interferometric Radar
Sensors, 2020 This letter proposes a radar interferometric survey system for the ground surface of helicopter landing sites. This system generates high-quality three-dimensional terrain surface topography data and estimates the slope of the site with the required ...
Pavel E. Shimkin +3 more
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Frequency selective reconfigurable microstrip antenna for cognitive radio applications
Advanced Electromagnetics, 2022 For the efficient utilization of electromagnetic radio spectrum cognitive radio communication system is employed, which deals with the spectrum scarcity. An efficient antenna is essential for the appropriate selection of the available frequencies.
D. S. Aldar
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IEEE Access, 2020 In state-of-the-art mobile devices (MDs), non-radio contexts (i.e., non-real-time data) provided by various sensors have been excluded in determining the modem configuration because of the problems in applying them in real-time modem operations.
Heungseop Ahn +4 more
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Radio-over-fiber using an optical antenna based on Rydberg states of atoms [PDF]
, 2018 We provide an experimental demonstration of a direct fiber-optic link for RF transmission ("radio-over-fiber") using a sensitive optical antenna based on a rubidium vapor cell.
A. Deb, N. Kjærgaard
semanticscholar +1 more source