Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Siahcheshm, A."'
Autor:
Amir Siahcheshm
Publikováno v:
مهندسی مخابرات جنوب, Vol 13, Iss 52, Pp 65-80 (2024)
This paper presents a circularly polarized (CP) printed crossed-dipole antenna for Global Positioning System (GPS) receptions in the L1 (1575 MHz) band. Its structure consists of two orthogonally printed dipoles, two integrated baluns to feed the dip
Externí odkaz:
https://doaj.org/article/5ffd4405fdfc48e5b23453c9e6a4274f
Autor:
Bahareh Heydarpanah, Zhale Amiri, Majid Shokri, Changiz Ghobadi, Javad Nourinia, Amir Siahcheshm, Ali Kianzad
Publikováno v:
IEEE Access, Vol 12, Pp 154853-154863 (2024)
This article proposes a new approach to designing dipole antennas that can create circular polarization. Using a meander-shaped parasitic element in the upper part of the dipole forms a Yagi-Uda-like structure, and the cooperation between the dipole
Externí odkaz:
https://doaj.org/article/3b1bca5a64b044ac8225b97588f45bc6
Autor:
Siahcheshm, Parya, Heiden, Patricia
Publikováno v:
In Journal of Photochemistry & Photobiology, A: Chemistry 1 February 2023 435
Publikováno v:
علوم محیطی, Vol 20, Iss 1, Pp 41-56 (2022)
Introduction: Oxidation of sulfide mineralized zones during the weathering processes is intensified by biological and chemical reactions and the resulting Acid Mine Drainage (AMD) causes the release and mobility of toxic and heavy metals from the par
Externí odkaz:
https://doaj.org/article/d2d38898bf764324ae54fdfab020725a
Publikováno v:
In Materials Chemistry and Physics 1 October 2021 271
Publikováno v:
علوم محیطی, Vol 18, Iss 4, Pp 41-54 (2020)
Introduction: Oxidation of sulfide-mineralized zones during weathering, intensifies by the biological and chemical reactions and the released acidic mine drainage (AMD) mobilizes toxic and heavy elements from the parent rock and concentrates them in
Externí odkaz:
https://doaj.org/article/b7964d8602c9418c95bb10c94f7f1360
Publikováno v:
Radioengineering, Vol 29, Iss 1, Pp 67-73 (2020)
The first aim of this work is to design a new geometry of printed helix antennas in a simple structure that only uses planar FR4 substrates, unlike conventional wire helix antennas. The main body of helix comprises four rectangular substrates contain
Externí odkaz:
https://doaj.org/article/8b6ab06d5f39438fa4ecb5c0603d267b
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
In AEUE - International Journal of Electronics and Communications September 2018 93:75-82
Publikováno v:
In Journal of African Earth Sciences May 2017 129:692-700