A5066058012- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Antenna Design and Optimization
- Electromagnetic Compatibility and Measurements
- Energy Harvesting in Wireless Networks
- Electromagnetic Compatibility and Noise Suppression
- Electromagnetic Scattering and Analysis
- Full-Duplex Wireless Communications
- Probabilistic and Robust Engineering Design
- Ultra-Wideband Communications Technology
- Wireless Power Transfer Systems
- Advanced MIMO Systems Optimization
- Electrostatic Discharge in Electronics
- Wireless Body Area Networks
- Radio Frequency Integrated Circuit Design
- Structural Health Monitoring Techniques
- Gyrotron and Vacuum Electronics Research
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Electromagnetic Simulation and Numerical Methods
- High voltage insulation and dielectric phenomena
- RFID technology advancements
- Human-Automation Interaction and Safety
- Aerospace and Aviation Technology
Beihang University
2016-2025
Shanghai Jiao Tong University
2006-2024
Peng Cheng Laboratory
2023-2024
Tongji University
2014-2023
Shanghai Tenth People's Hospital
2020-2023
Shanghai Children's Hospital
2023
Guiyang Medical University
2019-2023
Guizhou Electric Power Design and Research Institute
2022
Southeast University
2021
Purple Mountain Laboratories
2021
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> A compact rectangular monopole with an equal-width ground plane is presented. This novel structural configuration could significantly improve its radiation performance and decrease size. The feeding structure composed of a trident-shaped strip tapered impedance transformer presented discussed. Its bandwidth, defined by measured VSWR less than 2, from 2.75 to 16.2 GHz ratio about 5.9:1. Both...
In this article, a novel design concept for bandwidth enhancement and mutual-coupling (MC) reduction of single quad-port cross-slot antenna with simultaneously co-polarized dual-polarized radiation patterns is proposed designed. Initially, the first-, second-, third-order modes (CM1–CM3) dual-port single-slot pattern are theoretically studied by using characteristic mode analysis (CMA). The results demonstrate that when one port excited, electric-field null could be shifted to another...
Out-of-band interference by antenna coupling is frequently encountered and difficult to compensate. In this paper, it studied for the first time using characteristic mode analysis (CMA). Mutual between two antennas separated into several fundamental modes, contribution of each evaluated through modal mutual admittance (MMA). Some higher order which contribute little in-band radiation but much out-of-band coupling, are discriminated controlled means inductive loadings. The placement loadings...
In response to insufficient isolation of microstrip triplexers, this work presents a design method for tri-band antenna integrated with passive triplexer. Based on the analytic resonant characteristics stepped impedance resonators (SIRs), combination SIR and transmission lines is used meet conditions required by common junction It has simple structure, straightforward equations, high layout flexibility. A shorting pin directly cascade triplexer antenna, realizing single PCB integration...
This study explores the potential for implementation of an advanced Intelligent Traffic Light System (ITLS) in Chinese urban landscapes, integrating Internet Things (IoT) and digital twin technologies sustainable development. Using empirical data from Malaysia Smart Management (MSTLM) program, we assessed effectiveness system on multiple dimensions critical to sustainability. Statistical analysis eight cities showed significant improvements vehicle safety programs: average travel time was...
An L-sleeve L-monopole (LSLM) antenna fitting a shark-fin module is proposed for vehicular long-term evolution (LTE) communication. Starting with classical sleeve monopole antennas, low-profile introduced to explain the working principle of LSLM. The influence ground plane, placement position, and bent LSLM analyzed fit different modules. Designed prototypes (the bended LSLM) cover frequency range 698-2700 MHz (VSWR <; 3), which would serve major LTE standards. One tab covering 5-6 GHz can...
Characteristic mode analysis (CMA) has been widely used for guiding antenna design and mitigating mutual coupling in the far field. However, near field is still an intractable problem. In this communication, CMA adopted to analyze mitigate near-field between antennas. It found that more modes are required as contributions of higher order significant region. addition, modal distributions proposed discriminate unwanted along with admittance eigencurrent distributions. Inductive loads suppress...
In this article, the characteristic mode analysis (CMA) of general metallic-dielectric structures is performed using volume-surface integral equation (VSIE). The whole-structure and substructure formulations for CMA are presented discussed. It proven that only operator symmetrical therefore fulfills CMA's theoretic requirements. Such a ensures computed eigencurrents orthogonal eigenvalues real numbers. Numerical verifies formulation yields more accurate results than one. A smartphone chassis...
The theory of inner resonant modes (IRMs) is very useful for the analysis and design dielectric resonator antennas (DRAs), but it suffers from several limitations including canonical DRA shapes, high permittivity substrate, large errors. Characteristic (CMs) contain similar physical insights without owing to its full-wave nature. In this paper, a new approach proposed codesign DRAs feeding structures using CMs. volume-surface formulation combining substructure treatment adopted calculate CMs...
In this article, a pattern synthesis methodology for lossy antennas is proposed based on <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">${N}$ </tex-math></inline-formula> -port characteristic mode analysis (CMA), with the radiation efficiency of antenna guaranteed at same time. Reactive loads are chosen as physical implementations. To perform notation="LaTeX">$N$ CMA, ports first added to and lossless...
Abstract A new ultrawideband antenna is presented in this letter, and the fractal structure used to obtain such a wideband feature. The parameters characteristics of are given. simulated measured results show that bandwidth larger than 6:1 achieved. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 173–176, 2007; Published online InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22078
Partial discharge inception voltage measurements under repetitive impulsive voltages play an essential role in evaluating the reliability of inverter-fed low rotating machines. Using voltages, partial (PD) signals and disturbance induced by power electronics switches have often similar energy distribution frequency domain. Thus, PD test technologies used with sinusoidal are no longer effective. Under ultra-high detection is recommended to couple high-frequency spectral components from remove...
A single-layer microstrip antenna for ultrawideband (UWB) applications, in which an array of rectangular patches was arranged the log-periodic way and proximity-coupled to feeding line, is presented. In order reduce number UWB arrays, a large scale factor k = 1.1 firstly reported proved be highly effective. Furthermore, instead using absorbing terminal loading, novel loss-free compensating stub proposed. Detailed parameters study also presented better understanding proposed antennas. The...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> An investigation is described of the pulse preserving capabilities printed circular disk monopole antennas with rectangular, curved, and hexagonal grounds in scope correlation factors. Detailed study on parameters presented. Both numerical experimental results show that a properly-designed curved or would have better performance than identical rectangular ground. The improvement factors x-y plane...
An investigation of the performance printed dipole antenna with finite periodically corrugated-reflectors for low-profile ultrawideband (UWB) applications is presented. According to relative orientations linear-polarized source and corrugated-reflectors, problem could be divided into H E cases. Their fundamental differences design guidelines are discussed in detail. A novel composite corrugated-reflector based on combinations H-type E-type ones proposed first time, fully characterized a UWB...
A new unidirectional antenna composed of a reversed T-match dipole, microstrip feeding line and ground plane is presented for low-profile ultra-wideband (UWB) applications. This an improvement over the folded dipole antenna, as it achieves compact size low profile through introduction shorting branches on opposite layer. Detailed descriptions structure design are presented. The occupies area 23 mm × 32 mm, height above 18 (about quarter wavelength at mid-band). Simulated measured results...
Abstract Background Accumulating studies have shown that La‐related protein 1 (LARP1) is involved in the occurrence and development of various tumours. However, expression pattern biological role LARP1 hepatoblastoma (HB) remain unclear so far. Methods level HB adjacent normal liver tissues was analysed by qRT‐PCR, Western blotting immunohistochemistry assays. The prognostic significance evaluated Kaplan–Meier method multivariate Cox regression analysis. In vitro vivo functional assays were...
Presented is a new CPW-fed quasi-circular monopole antenna, which composed of triangle and its tangent circle. This smooth structure reduces the dimensions improves impedance bandwidth dramatically. The CPW ground bevelled to form 50 100 Ω transformer. measured defined by VSWR<2 from 2.55 18.5 GHz, i.e. ratio about 7.3:1. proposed exhibits nearly omnidirectional radiation pattern with very compact size simple structure, suitable for various military commercial wideband applications.
Abstract A novel ultra‐wide band printed slot antenna is presented. By using the feeding structure of a circular patch with tapered microstrip line, bandwidth elliptical greatly enhanced. The impedance (VSWR < 2) reaches 174%, covering 1.90–27.7 GHz ratio 14.6:1. This also features bidirectional radiation pattern and thin profile, making it promising in various wideband applications. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 845–846, 2008; Published online InterScience...
A new decoupling feeding network (DFN) is proposed for circularly polarized (CP) patch arrays with an arbitrary number of elements. Different from linearly (LP) arrays, a dual-feed structure adopted each element to enhance the CP performance. The structures should be integrated into DFN, and hence coupling paths become very complicated. An orthogonal mode decomposition (OMD) method established analyze mechanism between Based on OMD, model mutual elements established, which can used assist...
A nested iterative solver for the generalized eigenvalue equation of volume surface integral (VSIE) based sub-structure is proposed characteristic mode analysis (CMA) composite metallic-dielectric objects. The computation matrix inversion and associated matrix-vector multiplications during solving phase approximated by resolving two related linear systems using sub-blocks. To conserve computational resources, a two-fold pre-conditioner, coupled with Multilevel Fast Multipole Algorithm,...