Optics Communications, Journal Year: 2024, Volume and Issue: unknown, P. 131339 - 131339
Published: Nov. 1, 2024
Materials & Design, Journal Year: 2025, Volume and Issue: unknown, P. 113903 - 113903
Published: March 1, 2025
Language: Английский
Citations
1
Opto-Electronic Advances, Journal Year: 2024, Volume and Issue: 7(9), P. 240040 - 240040
Published: Jan. 1, 2024
Smart antennas have received great attention for their potentials to enable communication and perception functions at the same time. However, realizing function synthesis remains an open challenge, most existing system solutions are limited narrow operating bands high complexity cost. Here, we propose externally perceivable leaky-wave antenna (LWA) based on spoof surface plasmon polaritons (SSPPs), which can realize adaptive real-time switching between "radiating" "non-radiating" states beam tracking different frequencies. With assistance of computer vision, smart SSPP-LWA is able detect external target user or jammer, intelligently track by self-adjusting frequency. The proposed scheme helps reduce power consumption through dynamically controlling radiating state antenna, improve spectrum utilization avoid conflicts deciding On other hand, it also helpful physical layer security working according presence in real In addition, be generalized metamaterial systems could a candidate synaesthesia integration future systems.
Language: Английский
Citations
4
Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown
Published: April 15, 2025
Abstract In this paper, we present a transparent and tunable radar‐infrared bi‐stealth metamaterial consisting of an infrared shielding layer (IRSL), radar‐absorbing (RAL), water substrate, metal meshed reflective backplane. The IRSL consists array indium tin oxide square patches, reducing emissivity transmitting microwaves. the RAL, ultrathin metallic meshes with different periods are integrated into one to broaden microwave absorption bandwidth. Moreover, substrate facilitates tunability performance via its fluidity. Experimental measurements simulations indicate that fabricated sample can achieve over 90% within wide frequency range 3.6–15.8 GHz relative bandwidth 126%. band be further switched 3.6–5.9 11.2–13.8 by simply adjusting thickness. addition, low ≈0.37 is achieved in atmospheric window (8–14 µm), while measured average optical transmittance reaches 65.5% at 400–800 nm. main advantage proposed compatibility across visible, infrared, regions simultaneous realization high transparency, reduced emissivity, broadband switchable absorption. Given these multiple functionalities superior performances, has great application potential aircraft windows, glass curtain walls buildings, counter‐surveillance devices, wireless communication systems.
Language: Английский
Citations
0
Laser & Optoelectronics Progress, Journal Year: 2025, Volume and Issue: 62(10), P. 1000001 - 1000001
Published: Jan. 1, 2025
Citations
0
Micromachines, Journal Year: 2024, Volume and Issue: 15(8), P. 1014 - 1014
Published: Aug. 7, 2024
Manipulating orthogonally polarized waves independently in a single metasurface is pivotal. However, controlling the phase shifts of difficult, especially same frequency bands. Here, we propose receiver-phase shift-transmitter transmitarray with independent control arbitrary polarization states bands, which transmission rates reach more than 90% bands 4.2~4.9 GHz and 5.3~5.5 GHz. By introducing phase-regulation structure to each element, phases covering 360° for different incident can be controlled by geometric parameters, two-bit coding obtained. The design principle based on two-port network's scattering matrix has been analyzed. To verify tuning abilities proposed incidences multifunctional receive-phase shift-radiation (RPRCT), composed 16×16 elements, functions anomalous refraction (for example, orbital angular momentum wave) focusing was simulated measured. measured results agree reasonably well ones. Our findings provide simple method obtaining orthogonal greatly improves capacity spectral efficiency communication channels.
Language: Английский
Citations
3
Advanced Composites and Hybrid Materials, Journal Year: 2024, Volume and Issue: 8(1)
Published: Dec. 3, 2024
Language: Английский
Citations
3
Fundamental Research, Journal Year: 2024, Volume and Issue: 5(2), P. 556 - 570
Published: Nov. 12, 2024
Due to the exponentially growing global mobile data of wireless communications evolving from 5 G 6 in recent years, research activities leveraging terahertz (THz) waves obtain larger channel capacities have shown an ever-increasing pace and reached unprecedented height than before. Historically, past few decades already witnessed much progress THz generation detection technologies, which been recognized for a long time as bottleneck preventing being tamed by human beings. However, importance developing advanced components such antennas, transmission lines, filters, power amplimers, etc., constitute basic building blocks system, should not be overlooked sake exploiting spectra future communications, sensing imaging applications. While producing scannable highly-directive antenna beam proves indispensable period microwaves, significance functionality is more critical era, considering that intractable challenges severity free-space propagation losses, susceptibility atmospheric environments, unavailability efficient signal sources. This article structured under this background, dedicated reviewing several enabling beam-scanning concepts, structures, architectures developed systems. Specifically, we divide these solutions into four groups based on different mechanisms, i.e., mechanical motion, phased array, frequency beam-scanning, reconfigurable metasurfaces.
Language: Английский
Citations
2
Published: Jan. 1, 2024
Language: Английский
Citations
0
Laser & Optoelectronics Progress, Journal Year: 2024, Volume and Issue: 61(19), P. 1913015 - 1913015
Published: Jan. 1, 2024
Citations
0
Optics Communications, Journal Year: 2024, Volume and Issue: unknown, P. 131339 - 131339
Published: Nov. 1, 2024
Citations
0