Zobrazeno 1 - 10
of 1 519
pro vyhledávání: '"Kwok L"'
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 23, Iss 6, Pp 512-520 (2023)
A wideband differentially fed circularly polarized (CP) antenna featuring a slotted patch design with a large beamwidth is presented. The final design of the differentially fed CP antenna, aimed at achieving high gain and a wide axial ratio (AR) band
Externí odkaz:
https://doaj.org/article/78c496072aa4464d866e6397f404ef1e
Publikováno v:
Alexandria Engineering Journal, Vol 70, Iss , Pp 553-567 (2023)
In this article, a three-element circularly polarized multiple-input-multiple-output (CP-MIMO) antenna array with self-decoupled probing method is introduced. Three unidirectional radiated Guo-shaped patch antennas were arranged in a triangular latti
Externí odkaz:
https://doaj.org/article/339b0a49be9c40c0b97b922055f9a635
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 11, Pp 8933-8942 (2022)
The rapid development of modern communication systems propels the demand of high performance and miniaturization of RF/microwave components. Power dividers and filters are indispensable circuit components in amplifiers and antenna feed-networks which
Externí odkaz:
https://doaj.org/article/7dc56d7378634f3f88aa9f06a973f79e
Publikováno v:
International Transactions on Electrical Energy Systems, Vol 2023 (2023)
Traditional methods for flexible capacity allocation do not take into account the actual operation status of resources, and this can lead to redundancy of allocation results in a high renewable penetration power system. Using collaborative optimizati
Externí odkaz:
https://doaj.org/article/2c822aa13ba64e81b532fe43cd7fa87f
Publikováno v:
IET Computers & Digital Techniques, Vol 2023 (2023)
In view of the known problems of parameter sensitivity, local optimum, and slow convergence in the ant colony optimization (ACO), we aim to improve the performance of the ACO. To solve the traveling salesman problem (TSP) quickly with accurate result
Externí odkaz:
https://doaj.org/article/0c7224bf5844475092b7756ff65650ec
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 14, Pp 1833-1841 (2021)
Abstract In this study, a novel frequency beam‐scanning (FBS) antenna based on composite substrate integrated waveguide/spoof surface plasmon polariton (SIW/SSPP) waveguide is proposed. The composite SIW/SSPP slow‐wave waveguide is designed by em
Externí odkaz:
https://doaj.org/article/95b65e075dad48db9c121805eaa68f6d
Publikováno v:
IEEE Access, Vol 9, Pp 24669-24681 (2021)
A passive wireless strain-sensing system for strain monitoring of metallic structures is presented in this paper, wherein single-feed (SF) patch antenna with near orthogonal fundamental modes is initiated as the sensing element. A new approach is pro
Externí odkaz:
https://doaj.org/article/a4205a2f84df4000b1c40148c353e603
Publikováno v:
IEEE Access, Vol 8, Pp 82471-82480 (2020)
A dual linearly-polarized (LP) high-order-mode antenna with high gain and high isolation is proposed for 5G millimeter-wave (mm-wave) applications. To obtain high gain and wide bandwidth, a 2 × 2 slot-fed magneto-electric (ME)-dipole antenna element
Externí odkaz:
https://doaj.org/article/2c333f6190254f29b1ee733b642b9747
Publikováno v:
IEEE Access, Vol 7, Pp 17469-17479 (2019)
This contribution presents a novel 3-D circular conformal MIMO antenna system composed of three magneto-electric dipoles (MED) antennas. The single MED element was delicately designed to include one main (lower-band) dipole and two auxiliaries (upper
Externí odkaz:
https://doaj.org/article/9e7a000a90044b9ba59f1d980d9c1a33
Autor:
Kwok L. Chung, Shushuai Xie, Mohamed Ghannam, Mengxin Guan, Ning Ning, Yuanyuan Li, Chunwei Zhang
Publikováno v:
IEEE Access, Vol 7, Pp 41746-41756 (2019)
We present a cross-disciplinary approach applied to the strength prediction and correlation of cement composites in this paper. The empirical models for predicting flexural and compressive strengths of a kind of fiber reinforced cement composites, kn
Externí odkaz:
https://doaj.org/article/bc0d7e35ff274362a9d7199806309bd5