Zobrazeno 1 - 10
of 8 892
pro vyhledávání: '"Dielectric-resonator antenna"'
Autor:
Khalid F. Alsirhani, Kerlos A. Abdalmalak, Choon S. Lee, Ayman A. Althuwayb, Vicente G. Posadas, Luis E.G. Muñoz
Publikováno v:
Alexandria Engineering Journal, Vol 104, Iss , Pp 480-489 (2024)
Dielectric resonator antennas have been demonstrated to be an efficient radiator, especially with the possibility of fabricating it at low cost based on 3-D printing technologies. However, they have two main limitations which are: their relatively sm
Externí odkaz:
https://doaj.org/article/b76c1dc87ced4934be8202f7dcbf5319
Publikováno v:
Journal of Advanced Dielectrics, Vol 14, Iss 06 (2024)
New microwave dielectric ceramics of LiZnSbO4 were prepared by the reactive sintering method. Within the sintering temperature zone of 1350∘C–1385∘C, a single-phase LiZnSbO4 with an orthorhombic structure was identified by XRD refinement, which
Externí odkaz:
https://doaj.org/article/409fa34dc15f4f6597cdb1f1bc92eb88
Akademický článek
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Autor:
Rasika Verma, Rohit Sharma
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 2, Pp 109-119 (2024)
This article presents a four-element directional multiple input multiple output (MIMO) rectangular dielectric resonator antenna (RDRA) equipped with strategically placed copper reflector plates to enhance port isolation. This design aims to achieve a
Externí odkaz:
https://doaj.org/article/a9c824030a864b58af1d16d12a4dc5af
Publikováno v:
Magnetism, Vol 4, Iss 1, Pp 73-90 (2024)
This article delves into the capabilities of 3D-printed millimeter-wave (mmWave) layered cylindrical dielectric resonator antennas (CDRAs). The proposed design yielded promising results, boasting a remarkable 53% impedance bandwidth spanning the freq
Externí odkaz:
https://doaj.org/article/5fdbeecd74d64685b74a3f73515a301c
Autor:
Guoqiang He, Yu Jiang, Kaixin Song, Yanjun Liu, Yuan Nie, Wenjie Zhang, Ziqi Zhao, Yinghan He, Xinyue Ma, Xiuli Chen, Xu Li, Huanfu Zhou
Publikováno v:
Journal of Advanced Ceramics, Vol 13, Iss 2, Pp 155-165 (2024)
Microwave dielectric ceramics should be improved to advance mobile communication technologies further. In this study, we prepared Sr1+xY2O4+x (x = 0–0.04) ceramics with nonstoichiometric Sr2+ ratios based on our previously reported SrY2O4 microwave
Externí odkaz:
https://doaj.org/article/41717b25a195493a8dd377d4ffc8588f
Autor:
Reza Shamsaee Malfajani, Reza Damansabz, Sampada Bodkhe, Daniel Therriault, Jean-Jacques Laurin, Mohammad S. Sharawi
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 5, Pp 1351-1364 (2024)
Shared aperture antennas are versatile structures that can fulfill the demand for multi-band compact antennas in multi-standard emerging communication systems. However, the requirement of operation at widely separated frequency bands, such as sub-6-G
Externí odkaz:
https://doaj.org/article/d4fc31dc3db541caafa46d80d5077dad
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 3, Pp 778-787 (2024)
A completely embedded, planar, dual-element dielectric based antenna directly fed by a substrate integrated insulated guide within the same layer in Sub-THz band is presented in this paper. A dielectric layer is employed to make the structure stable.
Externí odkaz:
https://doaj.org/article/47267c1f1bb34bf0bc53d08a8bed22b3
Publikováno v:
IEEE Access, Vol 12, Pp 63644-63654 (2024)
Estimating the Time Difference of Arrival (TDoA), is a simple yet reliable technique to accurately perform an indoor monostatic localization. To implement TDoA estimation, one approach is to utilize a broadband radar system equipped with multiple rec
Externí odkaz:
https://doaj.org/article/8ac8e3f6418a4782817d45a29961638f
Publikováno v:
Tehnički Vjesnik, Vol 31, Iss 3, Pp 900-905 (2024)
The hybrid Dielectric Resonator Antenna (DRA) with circular polarization is another key research area since it can provide better antenna characteristics required by modern-day communication standards than the DRA with linear polarization. In this ar
Externí odkaz:
https://doaj.org/article/4126b7c50e1d41cfb8256e5c5bf959f8