Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Seyed Hassan Sedighy"'
Publikováno v:
Results in Engineering, Vol 23, Iss , Pp 102494- (2024)
Channel modeling plays a crucial role in measuring wireless communication performance. This paper describes statistical channel modeling for a recorded signal from a ground station in an urban area in Tehran. This signal was recorded from the GRBALPH
Externí odkaz:
https://doaj.org/article/bfa15e17bbce4e4e9994e5b7570b87cc
Publikováno v:
Results in Engineering, Vol 23, Iss , Pp 102481- (2024)
The importance of sensor networks in the field of IoT cannot be overstated, especially with the growing demand for IoT solutions. The new Internet protocols such as IPv6 and 5G mobile provide high-capacity communication networks, demonstrating the re
Externí odkaz:
https://doaj.org/article/135d4c8adec64e9e957a78d9c3d961df
Autor:
Mahdi Jamshidi, Seyed Hassan Sedighy
Publikováno v:
IEEE Access, Vol 12, Pp 153439-153444 (2024)
In this paper, a beam selection method is presented for a switched beam antenna (SBA) specifically designed and built for long-range wireless communications. The proposed SBA operates with eight beams for automatic direction finding (DF) and 360-degr
Externí odkaz:
https://doaj.org/article/82bfb1d04886445aaa16675acdafadd1
Publikováno v:
IEEE Access, Vol 12, Pp 99022-99028 (2024)
The aim of this paper is to design a novel compact and wideband feed for monopulse antenna using the Orbital Angular Momentum (OAM) modes of 0 and 1. The OAM mode 0 produce the sum pattern and the OAM mode 1 generate the difference pattern. Based on
Externí odkaz:
https://doaj.org/article/4866be16f44b4d02a018a557a982a963
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract modern wireless communication, the orbital angular momentum (OAM) beam is considered as an important technology. Some considerable efforts have been devoted to using this technology for channel capacity enhancement as much as possible. Nowad
Externí odkaz:
https://doaj.org/article/38953a36587e4b539e8fa765a6e91f62
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract In this paper, the PO method with the array theory are used to formulate the RCS of a grounded multi-height dielectric surface which can be employed in the design and optimization of a metasurface consisting of dielectric tiles with differen
Externí odkaz:
https://doaj.org/article/d34d3c5ffc3645c789c1c40660d52c27
Publikováno v:
مجله علمسنجی کاسپین, Vol 9, Iss 2, Pp 109-121 (2022)
Background and aim: "Technology roadmap" and "technology portfolio" are among the most widely used and popular tools in the field of management research, technology and innovation policy. The aim of the current study was to identify and evaluate the
Externí odkaz:
https://doaj.org/article/1040f5b31c8b41568074c2540bf2ac14
Autor:
Hamideh Daneshvar, Kavoos Ghordoei Milan, Ali Sadr, Seyed Hassan Sedighy, Shahryar Malekie, Armin Mosayebi
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract In this paper, various multi-layer shields are designed, optimized, and analyzed for electron and proton space environments. The design process is performed for various suitable materials for the local protection of sensitive electronic devi
Externí odkaz:
https://doaj.org/article/890975fa08ee4e71a9379cbf822279e5
Publikováno v:
Electronics Letters, Vol 57, Iss 7, Pp 279-281 (2021)
Abstract This study proposes a quasi‐fractal polarisation conversion metasurface (PCM) for ultra‐wideband radar cross‐section reduction (RCSR). The simple and proposed metasurface is composed of double‐heads arrowed‐like unit cell benefited
Externí odkaz:
https://doaj.org/article/bf72de425b92460e8e3113bf253af7a7
Publikováno v:
Progress In Electromagnetics Research C. 131:59-72
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dd9d4332b55c03147c57f49d3ce2c18
https://doi.org/10.2528/pierc22123101
https://doi.org/10.2528/pierc22123101