A5102856928- Nuclear Materials and Properties
- Fusion materials and technologies
- Microwave Engineering and Waveguides
- Radio Frequency Integrated Circuit Design
- Advanced Power Amplifier Design
- Microstructure and Mechanical Properties of Steels
- Fatigue and fracture mechanics
- Nuclear reactor physics and engineering
- Antenna Design and Analysis
- High-Velocity Impact and Material Behavior
- Energy Harvesting in Wireless Networks
- Non-Destructive Testing Techniques
- Hydrogen embrittlement and corrosion behaviors in metals
- High Temperature Alloys and Creep
- Millimeter-Wave Propagation and Modeling
- Advanced MIMO Systems Optimization
- Antenna Design and Optimization
- Photonic and Optical Devices
- Advanced Wireless Communication Techniques
- Advanced Antenna and Metasurface Technologies
- Microstructure and mechanical properties
- Blind Source Separation Techniques
- UAV Applications and Optimization
- Electromagnetic Effects on Materials
- Advanced Wireless Communication Technologies
Tsinghua University
2016-2024
Shanghai Power Equipment Research Institute
2012-2024
East China University of Science and Technology
2023
National Yang Ming Chiao Tung University
2023
China Southern Power Grid (China)
2023
Suzhou University of Science and Technology
2022
Chinese People's Armed Police Force Medical College Affiliated Hospital
2021
Southeast University
2012-2020
Nanjing University of Science and Technology
2009-2020
PLA Army Engineering University
2013-2019
The anisotropic diffusion coefficients of ${\mathrm{Sb}}^{124}$, ${\mathrm{Cd}}^{109}$, and ${\mathrm{Zn}}^{65}$ in single crystals tin have been measured by the tracer-sectioning method. results measurements are for Sb, ${D}_{\ensuremath{\parallel}}=71\mathrm{exp}[\ensuremath{-}\frac{(29.0\ifmmode\pm\else\textpm\fi{}0.03 \frac{\mathrm{kcal}}{\mathrm{mol}})}{RT}]$, ${D}_{\ensuremath{\perp}}=73\mathrm{exp}[\ensuremath{-}\frac{(29.4\ifmmode\pm\else\textpm\fi{}0.4...
Simultaneous wireless information and power transfer (SWIPT) is a promising technology to provide energy supplies at the same time in emerging Internet of Things (IoT) systems. In this paper, we focus on leveraging unmanned aerial vehicles (UAVs) realize energy-transferring information-transmitting simultaneously IoT. This paper investigates joint optimization allocation trajectory design UAV support infrastructure-starved IoT services. The objective maximize minimum harvested among multiple...
In this article, a high-efficiency broadband millimeter-wave (mm-Wave) integrated power amplifier (PA) with low-loss slotline-based combing technique is proposed. The proposed combiner consists of grounded coplanar waveguide (GCPW)-to-slotline transitions and folded slots to simultaneously achieve combining impedance matching. This provides parallel–series method enhance the output PAs at mm-Wave frequencies while maintaining compact area high efficiency. As proof concept, four-to-one hybrid...
This letter reports a strategy of full-digital arrays with nonreciprocal transmitting (Tx) and receiving (Rx) beam patterns, for the first time, 5G/6G wireless communications. The proposed array contains smaller number Rx channels than that Tx channels. unequal makes patterns asymmetrical, which would not only release burden data processing but also reduce hardware cost power consumption entire system. Importantly, as compared conventional large-scale beamforming arrays, will deteriorate...
This article presents a broadband THz power amplifier (PA) operating close to the maximum oscillation frequency ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">f</i> <sub xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> ) with proposed combining and stagger-tuned gain boosting techniques. A compact combiner based on compensated three-conductor transmission line (T-line) balun is simultaneously achieve matching combining. 4-stage closely...
This letter introduces a Ku band continuously tunable filter with one parameter. The proposed is implemented using substrate integrated waveguide (SIW) technology and has simple symmetrical structure. tunability of the circular resonator kind mechanical tuning, achieved by different distance between moving copper column center cavity. Location an approximately linear relation dominant cavity resonance frequency. single tuning range 12.6–15.0 GHz. fabricated made up two cavities frequency...
This paper presents a new design methodology for broadband Doherty architecture using the three-port input and output networks technique. The proposed topology was developed to overcome power amplifier (DPA) bandwidth limitations. network performs impedance matching from any load optimum loads both main peaking transistors also combines delivered two devices at ratio. On other hand, input-splitting is impedances of source impedance. freedom in choosing division ratio enables us achieve...
In this paper, the systematic design of a space-time block code is considered for wireless communication system with multiple transmitter-receiver antennas and flat fading, in which channel state information completely unknown. From viewpoint blind signal processing, necessary sufficient condition given unique identification multi-input multi-output fading transmitted signal. Then, some novel factorizations pair coprime <i xmlns:mml="http://www.w3.org/1998/Math/MathML"...
In this paper, a switched-beam antenna array based on Butler matrix network at 25 GHz is demonstrated for 5G channel sounding system. order to achieve beam switching, an 8×8 integrated with 1×8 switch designed as feeding excite the patch array. Owing linear phase distribution induced by matrix, can generate different beams in specific directions. Experimental results show that proposed achieves gain of better than 10dB.
A systematic design methodology including novel crest factor reduction (CFR) and power amplifier (PA) efficiency enhancement techniques for concurrent dual-band transmitters is proposed to improve performance under modulated stimulus, in terms of both output power. Conventional energy efficient PAs are typically implemented separately analog circuit or digital signal domains. However, the method combines a domain 2-D distribution reshaping (2-D-PDR) adaptively reshape signals' fit target...
For multiband power amplifiers (PAs), high impedance at the second-order intermodulation frequencies drain can result in severe nonlinear distortion concurrent mode. To solve this problem, a novel tuning network (IMTN) is proposed letter. The IMTN parallel to output matching and has multiple zeros low frequencies. Therefore, improvement linearity evident even if frequency difference of two operating bands PA relatively large. Experimental measurement carried out with three sets dual-band...
In this paper, a hybrid integrated broadband Doherty power amplifier (DPA) based on multi-chip module (MCM), whose active devices are fabricated using the gallium nitride (GaN) process and passive circuits arsenide (GaAs) (IPD) process, is proposed for 5G massive multiple-input multiple-output (MIMO) application. An inverted DPA structure with low-Q output network to achieve better bandwidth performance, single-driver architecture adopted chip high gain small area. The has of 4.4–5.0 GHz...