Results 1 to 10 of about 303,910 (293)

VitRad: A low-cost continuous wave Doppler radar system with 3D-printed horn antennas for human vital sign detection [PDF]

HardwareX, 2022
In this study, a low-cost continuous wave (CW) radar system with 3D-printed high-gain horn antennas called VitRad is proposed for human vital sign detection.
Hyunmin Jeong, Dohyun Kim, Gyoungdeuk Kim, Sangkil Kim   +3 more
doaj   +2 more sources

Ultraviolet optical horn antennas for label-free detection of single proteins [PDF]

Nature Communications, 2022
The authors introduce optical horn antennas, a nanophotonic platform combining plasmonic enhancement, efficient collection and background screening, for detection of UV autofluorescence from single proteins.
Aleksandr Barulin, Prithu Roy, Jean-Benoît Claude, Jérôme Wenger   +3 more
doaj   +2 more sources

220–325 GHz all-photopolymer Bragg horn antennas towards eco-friendly terahertz applications [PDF]

Scientific Reports
This paper presents the development of the world’s first high-gain, all-photopolymer Bragg horn antennas explicitly designed for the WR-3.4 band (220–325 GHz), marking a groundbreaking advancement in terahertz (THz) antenna technology.
Nonchanutt Chudpooti, Binbin Hong, Rungrat Viratikul, Feaveya Kheawprae, Akkarat Boonpoonga, Panuwat Janpugdee, Weijia Zhang, Prayoot Akkaraekthalin, Joachim Oberhammer, Nutapong Somjit   +9 more
doaj   +2 more sources

The Development of Copper Clad Laminate Horn Antennas for Drone Interferometric Synthetic Aperture Radar

Drones, 2023
Interferometric synthetic aperture radar (InSAR) is an active remote sensing technique that typically utilises satellite data to quantify Earth surface and structural deformation.
Philippa Mason, Richard Ghail, James Lawrence   +2 more
exaly   +3 more sources

DESIGN OF ANTENNAS FOR HYBRID FSO/RF TRANSMISSION SYSTEM [PDF]

Acta Electrotechnica et Informatica, 2021
The purpose of this publication is to create and correctly analyse a secondary RF line for a hybrid FSO/RF system. Since we want to ensure almost 100% functionality, the design of a secondary RF line is very important.
Maroš LAPČÁK, Ľuboš OVSENÍK, Jakub ORAVEC, Norbert ZDRAVECKÝ   +3 more
doaj   +1 more source

Optimization of Pyramidal and Conical Horn Antennas Parameters to Operate with High Radiation Performances for 5G Communication Using CST and HFSS Techniques

Zanco Journal of Pure and Applied Sciences, 2023
In this study, two techniques (CST and Ansoft HFSS) are used and compared for developing typically pyramidal and conical horn antennas which associated with waveguides operation at 28 GHz for 5G communications.
Skala Hatem Mohammed ,Mudhaffer Mustafa Ameen ,Sattar Othman Hasan
doaj   +1 more source

Coupling Reduction of Two Adjacent Quad-Ridge Horn Antennas at 20-40 GHz Frequency Range by Using of Wideband Electromagnetic Band Gap Structure

Majlesi Journal of Electrical Engineering, 2022
In this paper, the Electromagnetic Band-Gap (EBG) structures have been used to decrease the mutual coupling between two wideband quad-ridge horn antennas.
Farzad Mohajeri, Arman Bordbar, Anis Moradi Kouchi   +2 more
doaj   +1 more source

Array Synthesis Horn Antenna with an Extended Horn and a Stepped Corrugated Structure for High-Power Microwave Applications [PDF]

Journal of Electromagnetic Engineering and Science, 2020
This study proposes an array synthesis horn antenna with an extended horn and a stepped corrugated structure for a high-power microwave system. The horn antenna is designed by joining four pyramidal horn antennas and an extended horn to obtain a high ...
Yoon-Seon Choi, Ji-Hun Hong, Jong-Myung Woo   +2 more
doaj   +1 more source

Stable phase‐centre horn antenna using 3D printed dielectric rod for aperture efficiency improvement of space‐fed antennas

IET Microwaves, Antennas & Propagation, 2022
The design strategy to stabilise the phase centre (PC) of the conventional horn antenna using a shaped dielectric rod is presented for aperture efficiency improvement of space‐fed antennas.
Mohammad Omid Bagheri, Hamid Reza Hassani, Abdel Razik Sebak   +2 more
doaj   +1 more source

Spatiotemporal Search for Pulsed Radiation in the Photon Flux Detection Mode with Prolonged Observation Time of the Decomposition Element [PDF]

SHS Web of Conferences, 2023
The development of science and technologies of microwave frequencies (UHF) has contributed to the fact that the use of ultrawideband (UWB) pulsed signals has emerged as a separate scientific and technical area of radiophysics, requiring a deeper study of
Dahkilgova Kamila, Rumyantsev Konstantin
doaj   +1 more source