Zobrazeno 1 - 10
of 2 552
pro vyhledávání: '"Pattern synthesis"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract Time-modulated array antenna (TMAA) is a new type of array antenna based on time modulation technology. By introducing "time" as the fourth dimensional design freedom into the design of conventional array antennas in three-dimensional space,
Externí odkaz:
https://doaj.org/article/e80d3f4277244f02ae558b055102a33f
Publikováno v:
IEEE Access, Vol 12, Pp 68668-68679 (2024)
This study introduces a high-accuracy beam pattern synthesis technique using comprehensive unit cell and near-field measurement environment modeling for a miniaturized $8\times 8$ transmitarray antenna with a unit cell period of $0.4\lambda _{0}$ . T
Externí odkaz:
https://doaj.org/article/b548aca887dc4fb8a37a6b1e9ee6d7ce
Publikováno v:
IEEE Access, Vol 12, Pp 54285-54298 (2024)
A novel approach is presented for synthesizing radiation patterns of substrate-integrated waveguide leaky wave antennas in two stages. In the first stage, the antenna is considered an equivalent rectangular waveguide with slots, and a comprehensive e
Externí odkaz:
https://doaj.org/article/b06505d3408a4d52802ce51fe7ef2cb1
Akademický článek
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Publikováno v:
Sensors, Vol 24, Iss 13, p 4059 (2024)
Array pattern synthesis with low sidelobe levels is widely used in practice. An effective way to incorporate sensor patterns in the design procedure is to use numerical optimization methods. However, the dimension of the optimization variables is ver
Externí odkaz:
https://doaj.org/article/dfc6f6e475414149bedcdb0d0fbdcb0a
Publikováno v:
Mathematics, Vol 12, Iss 7, p 1111 (2024)
This paper introduces an application of the dandelion optimization (DO) algorithm in antenna arrays. This is the first time that the DO algorithm has been used for optimizing antenna arrays. For antenna array optimization, sidelobe level (SLL) and de
Externí odkaz:
https://doaj.org/article/838ea6668c7f4743aa7bb3c6a778d6fa
Publikováno v:
IEEE Access, Vol 11, Pp 101949-101958 (2023)
The subarray-level multibeam structure is advantageous for minimizing system complexity and enhancing multi-target detection and estimation performance. Furthermore, the subarray configuration plays a major role in determining the multibeam antenna p
Externí odkaz:
https://doaj.org/article/9c5518e675f0412194fcd8717acb0d80
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 641-653 (2023)
A deep learning neural network model in conjunction with a method to incorporate auxiliary surface waves is developed for the macroscopic design of transmitting metasurfaces. The main input to the neural network model is the user-defined desired far-
Externí odkaz:
https://doaj.org/article/2575982e189244eaaa5c722f062bd4e0
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 654-666 (2023)
A deep learning approach based on a diffusion model is proposed to yield metasurface unit cell designs. This method takes desired two-port scattering parameters along with the frequency of operation in an attempt to synthesize three-layered metasurfa
Externí odkaz:
https://doaj.org/article/3b6a066686be4c3c90ae2ef0742ca9d4
Publikováno v:
Applied Sciences, Vol 14, Iss 5, p 2068 (2024)
A single-feed broadband quasi-isotropic antenna was designed for non-line-of-sight (NLOS) wireless sensor networks. The proposed antenna is based on a combination of fork-shaped crossed dipoles. It shows the broadband of quasi-isotropic radiation cha
Externí odkaz:
https://doaj.org/article/42a146f9e6d642cfadafaf8630ece53e