Article
Nanoscience & Nanotechnology
Takumi Kaneda, Tetsuya Ueda
Summary: Dual-band composite right/left-handed transmission lines with nonreciprocal phase shift controlled by external magnetic field are proposed and demonstrated. The dynamic change in the nonreciprocal phase gradient enables the realization of dual-band and unidirectional leaky-wave antennas without frequency-dependent change in beam direction. A prototype nonreciprocal metamaterial line using polycrystalline yttrium iron garnet is fabricated and measured for verification.
Article
Chemistry, Physical
Kabir Hossain, Thennarasan Sabapathy, Muzammil Jusoh, Ping Jack Soh, Mohd Haizal Jamaluddin, Samir Salem Al-Bawri, Mohamed Nasrun Osman, R. Badlishah Ahmad, Hasliza A. Rahim, Mohd Najib Mohd Yasin, Nitin Saluja
Summary: This study presents an electrically tunable textile-based metamaterial (MTM) with left-handed characteristics and negative permittivity and permeability within specific frequency ranges. The proposed MTM unit cell and arrays were independently studied and experimentally verified, showing tunable transmission coefficient and dynamic operation potential for microwave wearable applications.
Article
Engineering, Electrical & Electronic
Sandeep Kumar, Runa Kumari
Summary: The coplanar waveguide-fed ultra-wideband composite right/left-handed antenna is designed with CRLH unit-cell and split-ring resonator on FR4 epoxy substrate to achieve UWB response. The gain of the antenna is enhanced by loading two PRISs on the double layer substrate, leading to a significant improvement in gain from 6.2 to 10.6 GHz.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Tayaallen Ramachandran, Mohammad Rashed Iqbal Faruque, Mohammad Tariqul Islam
Summary: This study presents a novel symmetrical circular-shaped metamaterial design with dual resonance frequencies for X-and Ku-band applications. Numerical simulations and experimental validations show that the proposed design is effective and feasible for communication system applications, demonstrating left-handed characteristics. Overall, this research provides valuable insights for the development of metamaterial designs in communication systems.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Review
Materials Science, Multidisciplinary
Ke Bi, Qingmin Wang, Jianchun Xu, Lihao Chen, Chuwen Lan, Ming Lei
Summary: All-dielectric metamaterials are a rapidly developing research hotspot in the field of metamaterials, offering low loss and design freedom. The proper choice of fabrication technique is crucial for efficient electromagnetic manipulation. This overview discusses existing fabrication techniques, including methods for different frequency bands and their respective advantages and disadvantages.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Miao Cao, Xiaojun Huang, Lina Gao, Xiaoyan Li, Linyan Guo, Helin Yang
Summary: A transparent all-dielectric water-based broadband metamaterial absorber with excellent performance and stability has been designed, which can be widely used in stealth window weapons and electromagnetic compatibility equipment.
Article
Physics, Applied
Guangxu Shen, Chenyang Zhang, Wenjie Feng, Wenquan Che
Summary: This Letter introduces a millimeter-wave low-loss on-chip metamaterial based on a non-periodic composite right-/left-handed (CRLH) transmission line. Compared to a classic periodic unit cell, the non-periodic CRLH TL achieves higher transmittance and better reflectivity. By analyzing the dispersion property, the proposed metamaterial features both right-handed and left-handed propagating modes, which results in a wide bandwidth. By utilizing a gallium arsenide-based integrated passive device process, the fabricated metamaterial demonstrates high and flat transmission with minimal insertion loss and low reflectivity over a broad frequency range.
APPLIED PHYSICS LETTERS
(2023)
Article
Computer Science, Information Systems
Iulia Andreea Mocanu
Summary: A compact 3-dB dual band ring coupler is designed using LH transmission line's duality principle, achieving size reduction and good performance in testing.
Article
Multidisciplinary Sciences
Mohammad Alibakhshikenari, Bal S. Virdee, Ayman A. Althuwayb, Leyre Azpilicueta, Naser Ojaroudi Parchin, Chan H. See, Raed A. Abd-Alhameed, Francisco Falcone, Isabelle Huynen, Tayeb A. Denidni, Ernesto Limiti
Summary: By using a non-Foster impedance matching circuit (NF-IMC), the paper demonstrates an effective technique to enhance both the bandwidth and radiation gain of a narrowband composite right/left-handed transmission-line (CRLH-TL) antenna, without compromising the antenna's stability. The proposed technique significantly increases the measured radiation gain and efficiency of the antenna over the operating frequency band, showing a notable improvement compared to a CRLH-TL antenna without the impedance matching circuit.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Feng Lan, Zi-Fan Meng, Jiu-Fu Ruan, Rui-Zhi Zou, Sheng-Wei Ji
Summary: The study introduces an all-dielectric metamaterial absorber with excellent absorption performance, thermal stability, and insensitivity to polarization and incident angle, which shows promising applications in the terahertz domain.
Article
Materials Science, Multidisciplinary
Zhenshan Yu, Hao Chen, Xuequan Chen, Yu-Sheng Lin
Summary: This study presents a silicon dielectric metamaterial (SDM) composed of two outer symmetric semi-circular rings and two inner symmetric split-ring resonators (SRRs). The electromagnetic responses of the SDM device in different modes were studied through numerical simulations and experiments. Increasing the structure height of the SDM device resulted in red-shifted resonances and stronger intensities. This study provides a new design strategy for the development of frequency filtering, polarization switching, and resonance modulation characteristics in THz-wave applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Materials Science, Multidisciplinary
Danqi Wang, Yuxiang Wang, Xuewen Li, Haokui Yan, Xiaojun Huang
Summary: This study introduces a water-based metamaterial design to achieve negative refraction with broadband capabilities. The feasibility of the design is verified through simulation and measurement results.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Physics, Multidisciplinary
Eistiak Ahamed, Mohammad Rashed Iqbal Faruque, Ahmed Mahfuz Tamim, Mohammad Tariqul Islam, Mohd Fais Bin Mansor, Mohammad Badal Ahmmed
Summary: In this work, a narrow metal strip inspired by left-handed metamaterial and sensitive LC resonator structure is designed for microwave sensing applications, exhibiting high sensitivity and field enhancement effects. The proposed metamaterial tunnelling structure is potentially useful for various sensing applications.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Haona Chen, Jinrong Liu, Lihua Xiao, Binggang Xiao
Summary: Metamaterials, a type of engineered material, have gained more attention from researchers. Traditional metamaterial absorbers have a sandwich structure with metal layers, which increases the complexity and cost. To overcome these problems, an absorber based on all-dielectric metamaterial is proposed, using 3D printed materials. The 3D printed absorber shows lightweight, small volume, and easy fabrication, with resonance absorption peaks reaching -35 dB.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Ehsan Hajisaeid, Shruti Deshmukh, Stephen J. Burbine, Erin E. Keaney, Claire Lepont, Mary Herndon, Carol Barry, Joey Mead, Alkim Akyurtlu
Summary: This article presents a printed tunable right/left-handed leaky wave antenna on a new flexible, tunable low density polyethylene-barium strontium titanate composite substrate using an aerosol jet printer, achieving up to 15 degrees beam steering capability at a fixed operated frequency in X-band frequency range.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2021)
Article
Physics, Applied
Chao Liu, Zhe Qin, Yongfeng Li, Tonghao Liu, Jiafu Wang, Shaobo Qu
Summary: In this paper, a low RCS TCDA based on a novel FSPC is proposed. The FSPC structure consists of a polarization conversion metasurface and a band-pass frequency selective surface. The coding sequence of FSPC is obtained using simulated annealing algorithm for RCS reduction. The co-design of TCDA with FSPC is presented and the radiation performance meets the design requirements. Measurement results show significant reflection reduction from 15 GHz to 21 GHz compared with a metallic plane of the same size, and the simulated and measured radiation patterns agree well.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Computer Science, Artificial Intelligence
Jie Lai, Xiaodan Wang, Qian Xiang, Jian Wang, Lei Lei
Summary: This study proposes a novel deep learning algorithm for classification tasks with label information. By introducing the Fisher criterion, the algorithm is able to learn more discriminative abstract features, resulting in better performance and robustness in classification.
COMPLEX & INTELLIGENT SYSTEMS
(2023)
Article
Nanoscience & Nanotechnology
Wen Wang, Leiyang Zhang, Wenjing Shi, Yule Yang, Denis Alikin, Vladimir Shur, Zhihao Lou, Dong Wang, Amei Zhang, Jinghui Gao, Xiaoyong Wei, Hongliang Du, Feng Gao, Li Jin
Summary: In this paper, a cooperative optimization strategy is proposed to achieve outstanding energy-storage performance in NBST-based ceramics. Substituting NN for NBST generates an ergodic state and induces polar nanoregions. Applying VPP to the ceramics further increases compactness and breakdown strength. The optimized ceramics possess improved energy-storage characteristics and temperature adaptability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Fangbin Wei, Yule Yang, Leiyang Zhang, Denis Alikin, Vladimir Shur, Amei Zhang, Hongliang Du, Xiaoyong Wei, Li Jin
Summary: High recoverable energy storage density (W-rec) and high energy storage efficiency (eta) are urgently needed for their potential application in pulse capacitor devices. However, low eta and breakdown strength (BDS) have hindered the achievement of high W-rec at high electric field. In this study, Bi(Mg0.5Ti0.5)O-3 (BMT) was introduced into Ba(Ti0.92Sn0.08)O-3 (BTS) matrix to enhance the relaxor character and reduce electrostrictive strain. The results showed significantly improved BDS and a high W-rec of 4.34 J/cm(3) with excellent temperature stability.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Jingrui Kang, Xu Guo, Rui Gu, Yi Tang, Honglei Hao, Yu Lan, Li Jin, Xiaoyong Wei
Summary: In this study, boron-based glass additives (B2O3, B2O3-SiO2-PbO (BSP), and B2O3- SiO2-K2O-Al2O3 (BSKA)) were successfully added to LATP by solid method, which effectively improved its density and ionic resistance. The addition of boron-based glass promoted the grain growth of LATP and increased its relative density, while reducing the activation energy and enhancing the total conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Applied
Yongyong Zhuang, Yifan Zhang, Liu Yang, Jianhui Yu, Haisheng Guo, Kexin Song, Qingyuan Hu, Lihong Yang, Hao Zhang, Xiaoyong Wei, Zhuo Xu
Summary: In this study, a high-quality WGMR was fabricated using the electro-optic crystal PIN-PMN-PT. The crystal composition used was 0.24PIN-0.45PMN-0.31PT. The dielectric properties of the sample indicated the need to limit temperature and external electric field frequency. The obtained Q value of the resonator was 0.7 x 10(5), and the resonator could be conveniently tuned using the inverse piezoelectric effect of the crystal.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Applied
Tianshuo Qiu, Weihan Li, Jiafu Wang, Jianqi Wang, Qiang An, Bingyang Liu, Yangfan Hou, Juanna Jiang, Wenxuan Tang, Ziru Cheng, Shaobo Qu
Summary: A method of achieving asymmetric transmission is proposed by exploiting the direction-dependent absorption of spoof surface plasmon polaritons (SSPPs). By combining trapezoidal wire arrays as absorbers with cutting metal wires as polarization rotators, the metamaterial exhibits different properties depending on the incident wave direction, enabling asymmetric transmission. The conversion of incident waves to SSPPs is efficiently achieved by trapezoidal wire arrays, while the propagation and absorption of SSPPs can be controlled by engineering the spatial dispersion of k-vector. The polarization rotation performance can be customized by changing the length of cutting metal wires. The study demonstrates the effectiveness of the proposed method, providing design flexibility and efficiency for asymmetric transmission.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Materials Science, Ceramics
Yunyao Huang, Wenjing Shi, Ruiyi Jing, Nguyen-Minh-An Tran, Haibo Zhang, Vladimir Shur, Xiaoyong Wei, Li Jin
Summary: By incorporating a relaxor ferroelectric end member PZN into the PMN system, (1-x)PMN-xPZN solid solutions were created, resulting in an increased T-m and improved electrostrain properties. The x = 0.4 composition exhibited a maximum electrostrain of 0.134% and a piezoelectric coefficient d(33)(*) of 936 pm/V. The x = 0.5 composition showed a high electrostrain between 20 and 80 degrees C, making it suitable for precision displacement actuators.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Yunyao Huang, Leiyang Zhang, Ruiyi Jing, Wenjing Shi, Denis Alikin, Vladimir Shur, Xiaoyong Wei, Li Jin
Summary: (1-x)Pb(Mg1/3Nb2/3)-xPbTiO(3) (PMN-xPT) ceramics were synthesized by solid-state reaction method. The structure, dielectric and ferroelectric properties were investigated. As x increases, PMN-xPT transitions from a cubic to a rhombohedral phase, enhancing the ferroelectricity. The electrostrain and longitudinal electrostrictive coefficient Q(33) increase and then decrease within a critical temperature region, indicating strong temperature-dependent characteristics. A maximum Q(33) of 0.0361 m(4)/C-2 was obtained at x = 0.2, and a phase diagram of the system was constructed. The findings provide insights into the phase evolution in this system and demonstrate a temperature-dependent electrostrictive effect that can be utilized to enhance electrostrains in PMN-based solid solutions by regulating the critical temperature region using engineering strategies.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Optics
Liu Yang, Yongyong Zhuang, Yifan Zhang, Yaojing Zhang, Shuangyou Zhang, Zhuo Xu, Pascal Del'Haye, Xiaoyong Wei
Summary: In this study, a method to achieve an electromagnetically induced transparency (EIT)-like effect in a whispering gallery mode resonator (WGMR) was proposed and experimentally validated in a lithium niobate (LN) device. The method utilized the electro-optic and inverse piezoelectric effects of LN to tune two modes of the LN WGMR at different rates, resulting in EIT-like resonance lineshapes. The electric field applied to the LN WGMR allowed precise control of the dynamic behavior of the EIT-like phenomenon. The proposed method and demonstrated devices offer potential applications in light storage, quantum information processing, and enhanced sensing techniques.
PHOTONICS RESEARCH
(2023)
Article
Materials Science, Ceramics
Ying Zhu, Lei Zhang, Jun Wang, Fang Zhou, Boheng Gui, Mingde Feng, Jiafu Wang, Shaobo Qu
Summary: In order to achieve microwave-infrared compatible stealth in high temperature conditions, thin films of high-entropy alloys (HEAs) were deposited on an Al2O3 matrix using magnetron sputtering technology. The thermal stability of the films was investigated through annealing at temperatures of 500°C, 600°C, and 700°C. The results showed that the HEA film was severely oxidized at 700°C for 6 hours, leading to a significant decrease in infrared reflectivity. However, the HEA films exhibited low infrared emissivity of 0.09 at 600°C and excellent thermal stability at 500°C for 20 hours with low infrared emissivity of 0.11. A simple metamaterial design utilizing HEA films was proposed for infrared-microwave compatible stealth. The study demonstrates the great potential of introducing HEAs in the field of high temperature compatible stealth due to their excellent thermal stability and durable high temperature stealth performance.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Chang Ding, Yudeng Wang, Junxiang Zhou, Huilin Mu, Yajuan Han, Fanyi Meng, Jiafu Wang
Summary: Liquid crystals with tunable dielectric properties in the microwave frequency band are of great significance for design of reconfigurable microwave devices. This article proposes a method for characterizing the dielectric properties of liquid crystals based on epsilon-near-zero metamaterials. The method involves designing a measurement device, integrating biased circuits and preconditioned alignments, and controlling the temperature of the liquid crystals. The effectiveness of the method is verified through experiments.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Zuntian Chu, Tiefu Li, Jiafu Wang, Yajuan Han, Ruichao Zhu, Tiejun Cui, Shaobo Qu
Summary: By utilizing the synergy of multimechanism resonances, this article proposes a method to achieve electromagnetic windows (EMWs) that enable broadband transmissions of both TM-and TE-polarized waves in an ultrawide range of incident angles. The proposed EMW utilizes Fano resonance and Drude resonances to expand the bandwidth for TE-polarization and suppress adverse influences of the parasitic Lorentz resonance for TM-polarization, respectively. Experimental validation confirms the ultrawide-angle broadband functionalities of this EMW, which can have wide applications in radar, communication, and imaging systems.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Chemistry, Physical
Qingyuan Hu, Denis Alikin, Boris Slautin, Anton Turygin, Xin Liu, Pengfei Li, Yuebin Zhang, Dabin Lin, Kexin Song, Yongyong Zhuang, Zhuo Xu, Pavel Zelenovskiy, Vladimir. Ya. Shur, Xiaoyong Wei
Summary: The domain structure and surface screening charges during phase transitions in the (001) oriented 0.72PMN-0.28PT crystal were investigated at the nanoscale using piezo-response force microscopy (PFM) and Kelvin probe force microscopy (KPFM). Electric field induced phase transitions were studied locally with confocal polarized Raman spectroscopy. It was found that PFM tip bias poling can induce a rhombohedral to monoclinic phase transition in the 0.72PMN-0.28PT single crystal, and the monoclinic phase relaxes back to the rhombohedral phase at elevated temperatures. This study provides valuable insights into the electric field induced phase transition and its practical applications for PMN-PT single crystals.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Physics, Applied
Yajuan Han, Jiafu Wang, Xinmin Fu, Hongya Chen, Chang Ding, Shaobo Qu
Summary: In this paper, the electromagnetic properties of tightly coupled spoof surface plasmon polariton (SSPP) modes and a slender broadside antenna based on the tightly coupled SSPP are investigated and proposed. The compactness and miniaturization of microwave devices are favored by the tight confinement of TC-SSPP modes around the slender structure. A prototype of the proposed antenna was designed, fabricated, and measured, with both simulated and measured results verifying the design.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
