A5006815594- Nuclear reactor physics and engineering
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Millimeter-Wave Propagation and Modeling
- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Antenna Design and Optimization
- Advanced Antenna and Metasurface Technologies
- Nuclear Engineering Thermal-Hydraulics
- Nuclear and radioactivity studies
- Probabilistic and Robust Engineering Design
- Radio Frequency Integrated Circuit Design
- Graphite, nuclear technology, radiation studies
- Magnetic confinement fusion research
- Advanced Numerical Methods in Computational Mathematics
- Model Reduction and Neural Networks
- Electromagnetic Simulation and Numerical Methods
- Advanced SAR Imaging Techniques
- Radar Systems and Signal Processing
- Superconducting Materials and Applications
- Numerical methods for differential equations
- Advanced MIMO Systems Optimization
- Microwave Imaging and Scattering Analysis
- Electromagnetic Scattering and Analysis
- High Entropy Alloys Studies
Nanjing University of Science and Technology
2020-2025
Southeast University
2017-2023
China General Nuclear Power Corporation (China)
2019-2021
University of Wisconsin–Madison
2021
State Key Laboratory of Millimeter Waves
2017-2020
Central South University
2020
Chengdu University
2020
Ever since the deployment of first-generation mobile telecommunications, wireless communication technology has evolved at a dramatically fast pace over past four decades. The upcoming fifth-generation (5G) holds great promise in providing an ultra-fast data rate, very low latency, and significantly improved spectral efficiency by exploiting millimeter-wave spectrum for first time infrastructures. In years beyond 2030, newly emerged data-hungry applications greatly expanded network will call...
A novel array antenna with a flat-shoulder shaped radiation pattern is proposed as the transmitting for 77 GHz automotive radar application. When it used in an comprising one transmitter and multiple identical receivers, can meet demands of both long-range medium-range detections without switching operation mode back forth between scenario scenario. The concept fully introduced to explain its mechanism. An unconventional was synthesized achieve desired pattern. Prototype also designed...
A novel full-digital multibeam array with wide scanning angle and enhanced beam gain is proposed for millimeter-wave massive multiple-input multiple-output applications. The consists of 16 dual exponentially tapered slot antenna (DETSA) elements. Each element integrated a radio frequency receiver, an intermediate chain, analog-to-digital converter (ADC). H-plane radiation pattern the DETSA very to enable in azimuth plane. further by employing 1-D multilayered planar lens that transforms...
In this article, integrated millimeter-wave (mmW) broadband circularly polarized (CP) single-beam/multibeam antennas (MBAs) are reported. The comprised a Berryphase (BP) transmit-array (TA) containing three layers of slotted elliptical metallic resonator arrays and cluster substrate waveguide (SIW) -fed CP source radiators with an anisotropic impedance surface (AIS) superstrate. By utilizing mmW radiators, BP-based transmission phase compensation, tailoring the dispersive transfer function...
In this communication, a novel substrate integrated waveguide slot array with flat-shoulder-shaped radiation pattern is introduced for both 77 GHz automotive medium-range radar and long-range applications. The operational principle of the antenna introduced, while synthesis desired facilitated by mixed optimization method, including nonlinear fitting aggressive space mapping. Experiments are carried out measured peak gain proposed 21.7 dBi. demonstrated presents to be an excellent candidate...
A series of E-band low-profile wideband antenna arrays with 45° and ±45° dual linear polarizations is presented for high-speed millimeter-wave communication applications. The array element consists a corner-fed patch tilted slot cut at its edge, which suppresses unwanted modes in order to generate the desired polarization. Comparing traditional patch, proposed gets rid bending feedline realizes higher isolation level between adjacent patches side-by-side arrangement. For proof-of-concept...
In this paper, a Ka-band digital beamforming array transmitter (DBFAT) using direct synthesizer (DDS) for millimeter-wave (mmW) applications is proposed. The system architecture, realization, generation, and measurement process of multiple beams are introduced. element consists two kinds tapered slot antennas with opposite fin orientations. They placed in the side-by-side configuration such that undesirable orthogonal electrical field suppressed, thereby decreasing cross-polarization level...
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...
In this paper, a 37-42.5GHz (N260 Band) 64 channel full-digital multi-beam array for 5G massive multiple input output (MIMO) applications is developed. The built on time division duplexing (TDD) architecture in which the transmitter and receivers are independent working separately to enable more flexible configuration hardware distribution. antenna elements of aligned way that 16 lie horizontal 4 vertical direction deliver higher beam resolution plane. By using cables unequal lengths, ×...
In this article, a novel beamforming patch array with cosecant fourth power pattern is proposed for millimeter-wave synthetic aperture radar (SAR) applications. It enables receiving identical in the field of view, provided that cross section levels targets within illuminated area are similar. Different from "one-way" communication application, SAR "two-way" system such received inversely proportional to R <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Array antennas for 77GHz automotive radar application are designed and measured. Linear series-fed patch array (SFPA) antenna is transmitters of middle range (MRR) all the receivers. A planar SFPA based on linear one substrate integrated waveguide (SIW) feeding network proposed transmitter long (LRR), which can decline radiation from itself. The fabricated, both performances with without radome these Good agreement between simulation measurement has been achieved. They be good candidates application.
In this communication, a broadband endfire circularly polarized (CP) antenna with low-profile feeding structure is proposed for millimeter-wave (mmW) applications. The array element consists of horizontally oriented printed electric dipole and vertically aligned tapered slot radiator, exciting two orthogonal radiated electric-field components simultaneously. amplitude phase relationships between these field can be adjusted by balancing the response radiators, thereby producing CP wave....
In this article, a hybrid radar configuration for automotive applications is proposed, with the system architecture, design, and measured results reported. The consists of vertically distributed phased transmitting array (PTA) horizontally aligned digital beamforming (DBF) receiving array, thereby enabling 2-D beam scanning reduced channel number. contrast to time-division multiplexing (TDM) multiple-input multiple-output (MIMO) radars, in which only single transmitter active at time TDM...
This article presents a wideband Rotman lens multibeam array implemented with substrate integrated coaxial lines (SICLs) for millimeter-wave (mmW) applications. Unlike other dispersive transmission commonly used printed circuit boards, SICL is nondispersive planar line that supports the propagation of transverse electromagnetic waves, thus enabling broadband designs mmW lenses. Two types wideband, compact transition structures consisting small strips and blind vias were designed to transfer...
A non-equiatomic refractory high entropy alloy (RHEA), (W35Ta35Mo15Nb15)95Ni5 with density of 14.55 g/cm3 was fabricated by powder metallurgical process mechanical alloying (MA) and spark plasma sintering (SPS). The behavior the metallic powders studied systematically, microstructure phase composition for both alloys were analyzed. Results show that crystal consists primary solid solution marginal oxide inclusion (Nb5.7Ni4Ta2.3O2). In addition, maximum strength, yield strength fracture...
Single-sideband time-modulated phased arrays (STMPAs) can suppress undesired sidebands and achieve convenient beam scanning without repeated time-consuming optimization, as compared to conventional (TMAs). However, most of STMPAs are limited phase-only weighting because the method for achieving amplitude significantly reduces suppression sidebands. In order simultaneously scanning, low sideband level (SBL), low-sidelobe (SLL), a general based on stepped waveforms with different amplitudes in...
Abstract A single‐layered W band circularly polarised (CP) antenna array fed by a sequential feeding network using compact gap waveguides (GWs) with reduced pins is presented. The radiating element consists of pair cross slots and an open‐ended rectangular cavity integrated into the top metal plate GW. rotation (SRN) consisting hybrid groove waveguide (GGW) ridge (RGW) structure Due to fact that conventional GWs multiple rows occupy large lateral size, thus making them difficult realise CP...