Zobrazeno 1 - 10
of 42
pro vyhledávání: '"R. A. Sadeghzadeh"'
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 3, Pp 137-146 (2024)
Abstract Instead of using expensive highly performing conventional pyramidal absorbers, in some cases, the use of absorbers based on very cheap eco‐friendly materials is an attractive alternative. The authors introduce a novel technique to improve
Externí odkaz:
https://doaj.org/article/874e1ee4482c4053bdb971f7bf917fff
Publikováno v:
Radioengineering, Vol 26, Iss 3, Pp 842-850 (2017)
So far multi-antenna techniques have been used in Synthetic Aperture Radar (SAR) to track moving targets. These techniques carry out the tracking of moving targets in an imaging area, using a combination of the data received by two or several antenna
Externí odkaz:
https://doaj.org/article/c905520fb2e74404a41bfc4f2a14930d
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2017, Iss 1, Pp 1-9 (2017)
Abstract A novel algorithm is presented based on sparse multiple measurement vector (MMV) model for direction of arrival (DOA) estimation of far-field narrowband sources. The algorithm exploits singular value decomposition denoising to enhance the re
Externí odkaz:
https://doaj.org/article/c12f949d4eca4ebe9c837604fe3e288e
Autor:
Sh. O. YazdaniFard, R. A. Sadeghzadeh
Publikováno v:
IETE Journal of Research. 69:909-915
A novel miniaturized printed monopole antenna for ultra-wideband (UWB) bidirectional brain machine interface (Bi-BMI) applications, based on defected feed line and parasitic structures, is designed...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::554ece9a8784425c4864c40bf3c9d15d
https://doi.org/10.1080/03772063.2020.1844071
https://doi.org/10.1080/03772063.2020.1844071
Publikováno v:
IETE Journal of Research. 68:4620-4625
An angular displacement sensor is designed using a corrugated substrate integrated waveguide (CSIW) cavity resonator. Where, in the proposed cavity, instead of copper vias, one of the electric wall...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4167317e5e5723faab9a6a77614e4f2
https://doi.org/10.1080/03772063.2020.1803151
https://doi.org/10.1080/03772063.2020.1803151
Publikováno v:
IETE Journal of Research. 68:4335-4345
A simple meta-material unit cell with a negative permittivity in the X band is designed in this work. This meta-material cell is a one-sided cell which is simulated to extract scattering parameters...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edfd155e2b8c89b1f6aad45d85504a31
https://doi.org/10.1080/03772063.2020.1792357
https://doi.org/10.1080/03772063.2020.1792357
Publikováno v:
International Journal of Microwave and Wireless Technologies. 12:906-914
To prevent far-field radiation characteristics degradation while increasing bandwidth, an attempt has been made to design and fabricate a microstrip antenna. An electromagnetic band gap (EBG) structure, including a layer of a metallic ring on a layer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5619cc5bf0622c1a1cdd3466eee2444
https://doi.org/10.1017/s1759078720000264
https://doi.org/10.1017/s1759078720000264
Autor:
Fatemeh Tavakoli, R. A. Sadeghzadeh
Publikováno v:
Journal of Electronic Materials. 49:3269-3281
We have designed a novel self-similar plasmonic perfect absorber with a quasi-three-dimensional (3D) shape based on parasitic elements, which is useful as a refractive index sensor for near-infrared applications. In order to achieve tunable attribute
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d582d720415f83d5e58fd3c5b0258f7f
https://doi.org/10.1007/s11664-020-08018-9
https://doi.org/10.1007/s11664-020-08018-9
In this paper, the transfer function of a passive waveguide-based terahertz pulse shaper is achieved using the time domain data provided by the full-wave simulation of the structure. The fractional order of the transfer function is determined based o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5d33a8171ae8a91afd077b6110a78c0
https://doi.org/10.21203/rs.3.rs-688227/v1
https://doi.org/10.21203/rs.3.rs-688227/v1
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 40:1092-1102
We experimentally study the impact of humidity and temperature on the transmission of 120-GHz waves through a solid core fibre of polypropylene without cladding. We find that the transmission is greatly affected by both, an increase in the water vapo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8b375369846430f79cbf1e86e1916c7
https://doi.org/10.1007/s10762-019-00644-7
https://doi.org/10.1007/s10762-019-00644-7