Zobrazeno 1 - 10
of 16 913
pro vyhledávání: '"directivity"'
Autor:
Ajay Singh, Sunil Joshi
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-17 (2024)
Abstract This paper presents the design and development of a rectangular slot DGS patch antenna fed by a microstrip line, designed to operate across three distinct frequency bands at 4.0 GHz, 4.9 GHz, and 5.5 GHz for 5G wireless communication applica
Externí odkaz:
https://doaj.org/article/bd97f75f37ea45d6af4e3d515d3d7ee0
Autor:
Devendra Kumar, Dhirendra Mathur
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 3, Pp 264-275 (2024)
This paper proposes a novel design for a frequency reconfigurable and bandwidth-enhanced antenna for use in biomedical telemetry applications. Data pertaining to a patient’s body parameters, such as blood pressure, pulse, and temperature, are gathe
Externí odkaz:
https://doaj.org/article/141943122f8a4484b98f8a215c96df7b
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-19 (2024)
Abstract Near-field (NF) earthquakes have distinct ground motions, forward directivity pulses, and fling-step motions, causing structural responses to differ from far-field (FF) earthquakes. Seismic isolation is regarded as a developed and successful
Externí odkaz:
https://doaj.org/article/2e4076f243c4401997440eff5c8d10fb
Publikováno v:
Radioengineering, Vol 33, Iss 1, Pp 121-126 (2024)
In this paper, a novel high-directivity microstrip coupler based on reflective resistors is presented. The proposed coupler consists of three pairs of coupled-line sections and one pair of resistors. Generally, the coupling degree can be controlled b
Externí odkaz:
https://doaj.org/article/91b7d953695a400fa7961bc4ed34519c
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 9, Pp 102923- (2024)
Microstrip patch antennas have gained popularity due to their compact size, flat design, cost-efficiency, and ability to accommodate various design needs. Despite their advantages, optimizing directional properties for peak performance remains challe
Externí odkaz:
https://doaj.org/article/428707db9c3c4a52801b1f93c713b65c
Autor:
Thompson, David J., Zhao, Dong, Ntotsios, Evangelos, Squicciarini, Giacomo, Cierco, Ester, Jansen, Erwin
Publikováno v:
Railway Sciences, 2024, Vol. 3, Issue 1, pp. 1-17.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/RS-11-2023-0041
Publikováno v:
International Journal of Disaster Risk Science, Vol 15, Iss 1, Pp 165-177 (2024)
Abstract This study achieved the construction of earthquake disaster scenarios based on physics-based methods—from fault dynamic rupture to seismic wave propagation—and then population and economic loss estimations. The physics-based dynamic rupt
Externí odkaz:
https://doaj.org/article/885fdd93eda64a9b91342bdbaddbc98f
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-25 (2024)
Abstract Recent seismic events have unequivocally highlighted the susceptibility of fault-crossing bridges to the synergistic effects of ground surface vibrations on either side of the fault plane and the tectonic dislocations arising from fault-indu
Externí odkaz:
https://doaj.org/article/804bf527be7e49d5b62d7ccf90f83e48
Publikováno v:
IEEE Access, Vol 12, Pp 48654-48667 (2024)
The advent of graphene has opened new avenues for the design of high-performance metamaterial devices, particularly in the realm of electromagnetic absorption applications. This paper introduces a novel design for a broadband tunable graphene metamat
Externí odkaz:
https://doaj.org/article/e805b1f217e74970aadd66be71209a66