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LZ

Li Zhou

University of Electronic Science and Technology of China

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Junfa Mao

Shanghai Jiao Tong University

Min Tang

Harbin University of Science and Technology

Meini Wang

Shanghai Jiao Tong University

Yueping Zhang

Nanyang Technological University

Dingyi Zeng

University of Electronic Science and Technology of China

Wenyu Chen

University of Electronic Science and Technology of China

Shiwen Yang

University of Electronic Science and Technology of China

Yongxiu He

North China Electric Power University

Wanlong Liu

University of Electronic Science and Technology of China

Dong Wang

Shenzhen University

Cooperative Institutions

University of Electronic Science and Technology of China

North China Electric Power University

Shanghai Jiao Tong University

China Electric Power Research Institute

Chinese Academy of Sciences

Sichuan University

University of Science and Technology of China

Beihang University

Tsinghua University

Beijing Normal University

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Vivaldi Antenna Array With Heat Dissipation Enhancement for Millimeter-Wave Applications

IEEE Transactions on Antennas and Propagation (2021)

Li Zhou Min Tang Jiawei Qian Yueping Zhang Junfa Mao

In this article, a new type of Vivaldi antenna with heat dissipation enhancement is proposed and manufactured based on 3-D printing and printed circuit board (PCB) technologies. A longitudinal slot on substrate integrated waveguide (SIW) is employed to feed Vivaldi radiation structure, which replaces the balun structure of traditional Vivaldi antennas. The measured 10 dB bandwidth of antenna element reaches up to 34.48% (21.77–30.39 GHz) and the in-band realized boresight gain is 6.5–8.8 dBi. The

$1\times 4$

Vivaldi antenna array with 28.72% (21.63–28.81 GHz) bandwidth and a gain range of 10.5–12.5 dBi is achieved. The fin-shaped structure of the antenna array further enhances the heat dissipation while increasing the gain up to the range of 13.4–15.5 dBi. The measured results are in good agreement with the simulated ones. The proposed antenna array has important application potential in 5G millimeter-wave systems.

Vivaldi antenna

Balun

10.1109/tap.2021.3091625

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Citations (23)

Identities on mex-related partitions

The Ramanujan Journal (2023)

Jane Y. X. Yang Li Zhou

Congruence relation

10.1007/s11139-023-00744-y

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Shenzhen Net Based on ATM and Internet Techniques

IFIP advances in information and communication technology (1998)

Li Zhou Gang Wu Wang Gaohua

10.1007/978-0-387-35347-0_20

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Forward Design of Financial Transmission Right Market in China

E3S Web of Conferences (2020)

Li Zhou Sijia Liu Xue Xia Minquan Ye Wenqi Ou

Financial transmission right (FTR) is a kind of financial instrument to avoid congestion cost risk caused by transimission congestion. Based on the development experience of foreign transmission right market, the paper designs the financial transmission right market in line with the operation characteristics of China’s power system, including the design of transmission right product, transaction rules and settlement. Finally, the rationality and operability of the transmission right market design scheme are verified by an example calculation. The paper aims to provide theoretical reference for the construction of transmission right market in China.

Settlement (finance)

Power transmission

10.1051/e3sconf/202019403002

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Substrate Integrated Waveguides Slot Antenna Array with Heatsink Enclosed

2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP) (2020)

Li Zhou Min Tang Meini Wang Junfa Mao

In this paper, a substrate integrated waveguide (SIW) slot antenna array combined with fin-shaped heatsink is designed. It consists of four 1×8 SIW slot antenna elements. The heatsink structure enclosed in the design enhances heat dissipation capability of the antenna array while maintaining the radiation performance of the original structure. The simulated -10 dB impedance bandwidth of the antenna array with and without heatsink are 6.5% and 6.4%, respectively. In addition, the realized gain are 19.16 dBi and 18.04 dBi at 28 GHz, respectively.

10.1109/apcap50217.2020.9246132

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Citations (2)

Research and Analysis about Array Antennas in Mobile Communications

Advanced materials research (2013)

Li Zhou Ming Hou

Because the direction of a single antenna is limited, and for strengthening the direct radiant ability of the antenna, we will put the weaker direction antennas together in some way to constitute an antenna array system. The antenna array is also called the array antenna or a disperse antenna array. The antenna cell can be the symmetry center-fed dipole, the aperture antenna, the circle antenna or other forms of the antennas whose direction are limited. In practice, the antenna array is almost constituted of similar antenna cells. I have mainly completed the antenna array direction diagram in conditions of some kinds of parameters. And at last, I get the useful results for practice. This also provides theories basis for the analysis of smart antenna.

Collinear antenna array

Antenna rotator

10.4028/www.scientific.net/amr.760-762.628

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Parameter Optimization of Power Coupling Efficiency of Optical Fiber Sensor with ZnO Coating

Piezoelectrics and Acoustooptics (2012)

Liu Qi Li Zhou Zhou Ya

Based on the structure and network model of the optical fiber sensor with piezoelectric ZnO coating,a target function model of power coupling efficiency has been established in this paper.A hybrid particle swarm optimization algorithm was used to optimize the power coupling efficiency parameters.The simulation results demonstrated that the algorithm has better efficiency for the power coupling efficiency network in complicated constraints.A series of device parameters data have been obtained from the simulation results.Through analyzing the optimized data,the theoretical references for the fabrication of the fiber sensor with piezoelectric ZnO coating can be provided.

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Status and development of optical fiber nanobiosensors

Journal of Transducer Technology (2002)

?The status and development of optical fiber nanobiosensors are introduced,including their fabrication,construction and application in biological system.

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A wideband dual-polarized dipole linear array with resistive loading

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) (2016)

Li Zhou Shiwen Yang Zhiwei Guo Y. Chen

A dual-polarized, tightly-coupled dipole linear array, delivering 5.7:1 bandwidth, is presented. Most of previous work on tightly-coupled array is focused on two-dimensional array. This communication presents a dual-polarized, tightly-coupled dipole linear array, which has much more potential in application. The linear array incorporates a resistive loop as the substrate load to broaden the bandwidth of both polarization. For vertical polarized dipole of linear array, lacking tightly-coupled environment, there are sever methods implemented to broaden the bandwidth, such as gradient slot and folded arms. Simulated results show that the linear array can achieve 5.7:1 bandwidth while scan to ±50°, for VSWR<;3(sever frequency <;3.5), and the radiation efficiency maintain above 50%.

Wideband

Resistive touchscreen

Collinear antenna array

10.1109/imws-amp.2016.7588405

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Citations (1)

Research on satellite-to-ground optical communication and AO technique

Li Zhou Deng xiuhua C. Z. Wen

In satellite-to-ground optical communication, the effect of atmosphere turbulence to communication system is a very important problem. The effect of laser beam propagating in the turbulent atmosphere and the performance of communication system are analyzed in this paper. Adaptive optics (AO) technique can be used to solve this problem of turbulent atmosphere. There are emphasis research on the effect of communication link error rate on different turbulence and improvement of performance when using AO technique; the simulation results are presented in paper. AO technique plays an important role in satellite-to-ground laser communication.

Free-Space Optical Communication

Communications satellite

10.1109/mape.2007.4393744

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Citations (2)