Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Homayoon, Oraizi"'
Autor:
Mahdi Salehi, Homayoon Oraizi
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024)
Abstract This study presents the design of four $$178\times 178$$ 178 × 178 (mm) $$^{2}$$ 2 wideband, high gain, highly efficient metasurface-based 4T4R MIMO (Multiple-Input Multiple-Output) antennas with highly isolated ports, covering the middle a
Externí odkaz:
https://doaj.org/article/e98c50a249b64f88a5d9611d9c525d21
Autor:
Haddi Ahmadi, Zahra Ahmadi, Nasrin Razmjooei, Mohammad Pasdari-Kia, Amirmasood Bagheri, Hamed Saghaei, Kamalodin Arik, Homayoon Oraizi
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Line waves (LWs) refer to confined edge modes that propagate along the interface of dual electromagnetic metasurfaces while maintaining mirror reflection symmetries. Previous research has both theoretically and experimentally investigated th
Externí odkaz:
https://doaj.org/article/3c5c72e285d94a49b003b5d18edaa792
Autor:
Amir Khajevandi, Homayoon Oraizi
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract In this research article, A miniaturized hexagonal split-ring 2.5-dimensional (2.5-D) unit cell is proposed for frequency selective surface (FSS) applications. The 2.5-D FSS provides efficient usage of the available surfaces and optimum incr
Externí odkaz:
https://doaj.org/article/c74dcfaed01a42c4ba6a4f3cbd8c2757
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-16 (2023)
Abstract A miniaturized V-band leaky-wave antenna (LWA) with circular polarization and backward-broadside-forward radiation based on a modified half-mode substrate integrated waveguide (M-HMSIW) is presented. The proposed M-HMSIW structure employs br
Externí odkaz:
https://doaj.org/article/c8568c77daba4977a774a7a76903dfbb
Autor:
Parinaz Hosseini, Homayoon Oraizi
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract In this paper, the graphene cell-cluster is introduced, which is composed of an array of identical unit-cells placed in a geometrical configuration. Such graphene cell-clusters are then used for the realization of a reflectarray. To the best
Externí odkaz:
https://doaj.org/article/75bc2fc16c384b90b779a11054f4c237
Autor:
Ali Pesarakloo, Homayoon Oraizi
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 12, Pp 771-779 (2022)
Abstract A wideband, metal‐only, and low‐cost transmission‐type polariser is proposed in which a plane wave with linear polarization impinging on the structure is converted to circular polarization wave on the other side and vice versa. The pro
Externí odkaz:
https://doaj.org/article/5c287af305ac4572a78edc3e2b92cf0a
Autor:
Amrollah Amini, Homayoon Oraizi
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract Spatio-temporally modulated impedance surfaces can be good candidates for generation of radiating waves with arbitrary eigenstates by breaking momentum and energy conservations. Here, we present a theoretical framework based on the holograph
Externí odkaz:
https://doaj.org/article/7fa17d447df544d588af3d591c61b9dd
Autor:
Amir Khajevandi, Homayoon Oraizi
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-13 (2022)
Abstract In this research article, the superformula is used to design the geometry of a frequency selective surface (FSS) unit cell, which resembles the shapes found in nature. The designed shape of unit cell is like petals, which may take different
Externí odkaz:
https://doaj.org/article/d177af393af04907992ad2eea5de38c8
Autor:
Amir Khajevandi, Homayoon Oraizi
Publikováno v:
Electronics Letters, Vol 57, Iss 25, Pp 957-960 (2021)
Abstract In this paper, the Minkowski fractal is used to design the geometry of a frequency selective surface (FSS) unit cell, which resembles the shapes found in nature. The proposed FSS unit cell has both angular and polarization stabilities of inc
Externí odkaz:
https://doaj.org/article/dedd105eb91148dcb47d11fa4c5da61b
Autor:
Fardin Ghorbani, Sina Beyraghi, Javad Shabanpour, Homayoon Oraizi, Hossein Soleimani, Mohammad Soleimani
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Beyond the scope of conventional metasurface, which necessitates plenty of computational resources and time, an inverse design approach using machine learning algorithms promises an effective way for metasurface design. In this paper, benefi
Externí odkaz:
https://doaj.org/article/6ddb4d8fd4794af39fa08837cff13b83