Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Alireza Mallahzadeh"'
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 22, Iss 6, Pp 622-630 (2022)
In this paper, a novel graphene-based leaky-wave antenna is presented. The frequency of the proposed antenna is in the terahertz range, and it is composed of a straight long slot covered with a graphene sheet. To tune the leakage constant along the s
Externí odkaz:
https://doaj.org/article/8f5c3cc8f19c441698beb4833f18297c
Autor:
Ali Vedaee, Alireza Mallahzadeh
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. :1-5
Autor:
Mohammad Hossein Amini, Zahra Davoodi-Rad, Amirhossein Ghasemi, Mohsen Khaliliy, Alireza Mallahzadeh
Publikováno v:
IEEE Transactions on Applied Superconductivity. 32:1-6
Publikováno v:
International Journal of RF and Microwave Computer-Aided Engineering.
Slotted waveguide antennas have received much attention due to features such as low loss, high efficiency, and high power capacity. In this article, a 2-D slot array antenna based on a ridged waveguide with a low level of side lobe is synthesized. Th
Autor:
Alireza Mallahzadeh, Ali Vedaee
A series-fed traveling-wave uniform circular array of sequentially rotated slot antennas producing two orbital angular momentum (OAM) modes is presented. The antenna operates at 10190 MHz, is built using a single layer of substrate integrated wavegui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aef8c8f3a43a32af5b3fe4242775a58
https://doi.org/10.36227/techrxiv.20411814.v1
https://doi.org/10.36227/techrxiv.20411814.v1
Autor:
Nasser Montaseri, Alireza Mallahzadeh
Publikováno v:
Waves in Random and Complex Media. :1-12
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-7
Superconducting microwave circuits are composed of components made from superconducting microstrip transmission lines (SMTLs). The spatial features of the superconductors provide the system operation at high speed and low noise floor. However, coupli
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 34:675-681
Designing superconducting microwave planar components cannot be well performed without utilizing a full-wave simulator. However, well-known conventional simulators, i.e., Ansoft HFSS or CST microwave studio, cannot predict the electromagnetic behavio
Modulated Reactance Surfaces With Several Modulation Indices for Multibeam Leaky-Wave Antenna Design
Autor:
Alireza Mallahzadeh, Nasser Montaseri
Publikováno v:
IEEE Transactions on Antennas and Propagation. 68:8156-8161
A general formulation describing a multitone periodicity of reactance surfaces is investigated, assuming a 1-D periodicity along the surface, while the surface periodicity is composed of several modulation indices. The dispersion analysis of the wave
Publikováno v:
IEEE Transactions on Electromagnetic Compatibility. 62:1678-1685
Several studies have been conducted on an externally-excited microstrip transmission line; however, no study, to the best knowledge of the researchers, has examined the superconducting microstrip transmission lines (SMTL), which are the main part of