Results 21 to 30 of about 655,319 (295)

Substrate Integrated Transmission Lines: Review and Applications

open access: yesIEEE Journal of Microwaves, 2021
This paper presents a general overview of substrate integrated transmission lines, from the perspective of historical background and progress of guided-wave structures and their impacts on the development of microwave circuits and integration solutions ...
Ke Wu   +2 more
doaj   +1 more source

Interaction of millimetre waves used in 5G network with cells and tissues of head-and-neck region: A literature review

open access: yesAdvances in Human Biology, 2023
Fifth-generation mobile technology is supposed to revolutionise the world. It has many features which can benefit humankind, but at the same time, it will expose us to much radiation. Therefore, we need to understand the importance and ill effects of 5 G
Namrata Dagli   +2 more
doaj   +1 more source

Optimal Adjacent Output Phase Difference Assignments in One-Dimensional Parallel Switching Matrices With Four Beams

open access: yesIEEE Journal of Microwaves, 2023
This article provides for the first time a detailed discussion of the optimal assignment of adjacent output phase differences in terms of matrix performance out of all possible combinations in generalized one-dimensional parallel switching matrices with ...
Shengjia Wu   +3 more
doaj   +1 more source

Quasi-Optical Multi-Beam Antenna Technologies for B5G and 6G mmWave and THz Networks: A Review

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
Multi-beam antennas are critical components in future terrestrial and non-terrestrial wireless communications networks. The multiple beams produced by these antennas will enable dynamic interconnection of various terrestrial, airborne and space-borne ...
Y. Jay Guo   +3 more
doaj   +1 more source

Design and Optimization of a Millimetre Wave Compact Folded Magic-T

open access: yesInternational Journal of Antennas and Propagation, 2012
A millimetre wave-folded magic-T junction compensated with metal cone is designed using a particle swarm optimization (PSO) algorithm. An off-centred metallic frustum was used to enhance the bandwidth and a metallic post is used to compensate the ...
Guang Hua   +3 more
doaj   +1 more source

Synthesis of multi-band reflective polarizing metasurfaces using a generative adversarial network

open access: yesScientific Reports, 2022
Electromagnetic linear-to-circular polarization converters with wide- and multi-band capabilities can simplify antenna systems where circular polarization is required. Multi-band solutions are attractive in satellite communication systems, which commonly
Parinaz Naseri   +3 more
doaj   +1 more source

One-dimensional leaky-wave antenna producing multiple beams

open access: yesAIP Advances, 2017
In this paper, far-field pattern of one-dimensional leaky-wave antenna (LWA) is directly synthesized by sinusoidally modulating surface currents of the antenna.
Xiang Wan, Tian Yi Chen, Tie Jun Cui
doaj   +1 more source

Towards high-power, high-coherence, integrated photonic mmWave platform with microcavity solitons

open access: yesLight: Science & Applications, 2021
Millimetre waves: soliton solutions in optical microcavity Powerful high-frequency radio waves can be generated by shining laser-driven resonating microcavity solitons onto tiny photodiodes, researchers in the USA have shown.
Beichen Wang   +8 more
doaj   +1 more source

Total transmission and super reflection realized by anisotropic zero-index materials

open access: yesNew Journal of Physics, 2012
We demonstrate theoretically and experimentally total transmission and super reflection which are realized by anisotropic zero-index materials (AZIMs). We show that total transmission will be observed when using a rectangular perfectly magnetic conductor
Hui Feng Ma   +3 more
doaj   +1 more source

Behavior of surface plasmon polaritons at the interface of metal and a non-integer dimensional (NID) dielectric medium

open access: yesResults in Physics, 2018
The behavior of surface plasmon polaritons (SPPs) at a planar non-integer dimensional dielectric-metal interface has been studied for the first time. The dimension of the interface is shown to have a strong effect on the behavior of SPPs.
Asad Aziz   +3 more
doaj   +1 more source

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