A5102776275- Antenna Design and Analysis
- Energy Harvesting in Wireless Networks
- Antenna Design and Optimization
- RFID technology advancements
- Power Systems and Renewable Energy
- Microgrid Control and Optimization
- Microwave Engineering and Waveguides
- Power System Reliability and Maintenance
- Advanced Battery Technologies Research
- Bluetooth and Wireless Communication Technologies
- Optimal Power Flow Distribution
- Real-time simulation and control systems
- HVDC Systems and Fault Protection
North China Electric Power University
2020-2022
Beijing University of Posts and Telecommunications
2013
A novel circularly polarized handset antenna which is compatible with multiple Global Navigation Satellite Systems proposed. The comprises a palm-size slab as the test bench, small chip mounted at corner of slab, meander line, three branches, and ground plane rectangle clearance region. featured several characteristics such dual frequency band operation, reception, low fabrication cost, compact size. Both simulated measured results are shown to illustrate good performance proposed antenna.
A novel circularly polarized tag antenna designed for RFID UHF band is proposed. An annular-ring microstrip patch with a pair of inserted slits used to achieve operation. By choosing the proper lengths two short-circuited arc lines and its coupling distance, good complex impedance matching can be obtained. The 10 dB return-loss bandwidth measured 215 MHz (720-935MHz), while 3 axial-ratio 6 (919-925 MHz). Further experiment shows that could provide better reading range when mounted on...
A novel circularly polarized handset antenna which is compatible with multiple Global Navigation Satellite Systems proposed. The comprises a palm-size slab as the test bench, small chip mounted at corner of slab, three branches, patch, and ground plane rectangle clearance region. featured several characteristics such quad frequency band operation, reception, low fabrication cost, compact size. Both simulated measured results are shown to illustrate good performance proposed antenna.
This paper proposes a distributed generation capacity planning method for AC/DC hybrid distribution network based on different functions of energy storage. The objective function is established the purpose economic optimization. According to application scenarios, storage divided into two functions: standby power supply and peak shaving valley filling. Two optimization models are from these aspects. Considering quality grid, reliability introduced as constraint. complicated calculation...
A novel compact and circular polarized antenna is proposed which can be easily fabricated embedded into RFID readers. Circular polarization characteristic of the achieved by introducing a crossed branch. The modified meandering line structure gives compactness characteristic. prototype measured. results show that this with dimension cover Chinese operating band from 920 MHz to 925 MHz, make's suitable for handheld terminal application
Abstract AC/DC microgrids contain a large number of power electronic devices, and their frequent switching process will bring huge amount calculation to the electromagnetic transient simulation, thus reducing simulation efficiency. The research on external characteristics microgrid does not need pay attention dynamic inside converter. Therefore, equivalent simplification mathematical model is used in this paper reduce data achieve purpose improving This method concise efficient, which relay...
Abstract Based on the development of AC-DC distribution network, a new device with energy storage structure is designed in this paper. This paper first analyzes existing power equipment and network reliability assessment methods. On basis, design put forward, link placed at DC high voltage side. The constraints as an critical load backup supply are defined mathematical model established. In timing Monte Carlo method used to calculate grid. can be applied variety scenarios, accuracy. It...