Zobrazeno 1 - 10
of 407
pro vyhledávání: '"electromagnetic metamaterials"'
Autor:
Bincai Wu, Xingqi Xuan, Yuqi Chen, Jun Wen, Qijun Hu, Shilie Zheng, Ian Pratt, Xiaonan Hui, Xianmin Zhang
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 11, Pp 819-829 (2024)
Abstract Implementation of reconfigurable metasurfaces demands a complex structure. The design methodology for metasurface elements based on PIN diodes requires targeted optimisation tailored to the varying application environments and cannot be dire
Externí odkaz:
https://doaj.org/article/02b48f19cbff47439b58eb013885a791
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 18, Iss 11, Pp 803-809 (2024)
Abstract The traditional co‐polarised metasurface achieves 360° phase coverage only at the resonant frequency but not full phase coverage across a wide bandwidth. This paper proposes a multilayer structure metasurface, which composes of five layer
Externí odkaz:
https://doaj.org/article/52fae151672743309995b8f2a9410f5a
Publikováno v:
Electronics Letters, Vol 60, Iss 21, Pp n/a-n/a (2024)
Abstract A miniaturized, high‐selectivity, wideband A‐T‐A frequency selective rasorber (FSR) based on compact spiral resonators (CSR) is proposed here. The lossy layer of the FSR consists of the CSR and a Jerusalem cross, with four resistors so
Externí odkaz:
https://doaj.org/article/1003ed09562f4a69b88c0ab09af5de38
Publikováno v:
IEEE Access, Vol 12, Pp 113178-113192 (2024)
In this paper we have presented a novel Intelligent Reflecting Surface (IRS) for future 6G communications. IRS is suitable for compensating the power loss of wireless communications, such as Satellite based communications, through redirecting the ref
Externí odkaz:
https://doaj.org/article/2bafe0c5431d4dfe9bbf817e19aeaf96
Publikováno v:
Electronics Letters, Vol 60, Iss 8, Pp n/a-n/a (2024)
Abstract In this work, a polarization rotating surface is designed, analyzed, and applied to the decoupling of ultra‐wideband antennas. A method of using dual‐size combined rings is proposed to expand the operating bandwidth to 4.8 to 18.2 GHz, a
Externí odkaz:
https://doaj.org/article/0179c44fd376406c8585043c588ee69a
Publikováno v:
Electronics Letters, Vol 60, Iss 7, Pp n/a-n/a (2024)
Abstract An innovative all‐metal self‐support microwave metamaterial absorber (MMA) based on a continuous complementary split ring resonator (CSRR) array frequency selective surface (FSS) is constructed. The CSRR‐based FSS has a selected freque
Externí odkaz:
https://doaj.org/article/236660f82b6e4938908b1601e9ebd2c2
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 12, Pp 955-962 (2023)
Abstract A novel windmill‐shaped metasurface (MTS) structure is firstly presented and applied to realise broadband antennas with stable radiation patterns. Different from conventional square MTS structure, the proposed windmill‐shaped MTS structu
Externí odkaz:
https://doaj.org/article/489311ba00b749be8f9e87232ccf7093
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 4, Pp 292-300 (2023)
Abstract A broadband metamaterial absorber working in the X‐band is designed and fabricated by 3D printing in this study. This structure is capable of nearly absorbing the power of incoming waves (more than 90%) in the frequency band starting from
Externí odkaz:
https://doaj.org/article/3d734b39a853470ba1d0348309ab3449
Publikováno v:
IEEE Access, Vol 11, Pp 18385-18390 (2023)
A planar phase gradient metasurface (PGM) with phase gradients in two in-plane directions will introduce two additional wave vectors to the reflected wave vector. For small incident angles, close to the normal vector, the magnitude of the reflected w
Externí odkaz:
https://doaj.org/article/4bbc18423df5437a9014469fe3f29cad
Autor:
Bhavsar Keval, Ahmed Shaymaa, Pal Singh Pawar Mayur, Kumar C Vivek, V Revathi, Singh Navdeep, Prasad S.V.S.
Publikováno v:
E3S Web of Conferences, Vol 552, p 01100 (2024)
This paper is about sustainable Electromagnetic Metamaterials (EM-MM), which are a new class of artificial materials with unique electromagnetic properties that cannot be found in nature. These materials are made from discrete micro and nanoscale obj
Externí odkaz:
https://doaj.org/article/99b4ed4bd4674053998a295f9a81f527