A5022739934- Acoustic Wave Phenomena Research
- Speech and Audio Processing
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Advanced Adaptive Filtering Techniques
- Hearing Loss and Rehabilitation
- Vehicle Noise and Vibration Control
- Motivation and Self-Concept in Sports
- Sport Psychology and Performance
- Outsourcing and Supply Chain Management
- Wireless Communication Networks Research
- Radio Frequency Integrated Circuit Design
- Advanced Power Amplifier Design
- Collaboration in agile enterprises
- Photonic and Optical Devices
- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Techniques
- Electromagnetic Compatibility and Noise Suppression
Bangkokthonburi University
2023
Nanjing University of Science and Technology
2018-2019
Nanjing University of Posts and Telecommunications
2012
Institute of Acoustics
2004
Nanjing University
2004
A bandpass push-pull high power amplifier (PA) based on substrate integrated waveguide (SIW) filtering balun divider is proposed in this article. The characteristic of the PA realized by complementary split rings resonators (CSRRs) defected SIW. Inherent to middle metal plane SIW balun, 180° phase difference division can be achieved. Due natural differential design produce second-harmonic suppression. Greater output obtained owing combiner. For fabricated PA, it exhibits high-selectivity...
In this article, a compact dual-band crossover using dual-mode ring resonators by Coplanar-Waveguide (CPW)-Fed scheme is proposed. It contains 2 homocentric square on the top layer to obtain responses. CPW feeding lines and open stubs are placed bottom feed adjust coupled strength. The center frequencies bandwidths for each passband can be individually controlled easily. To prove design concept, operated at 1.57 2.45 GHz designed fabricated. measured results show good agreement with...
A narrowband filtering balun power divider based on substrate integrated waveguide (SIW) and complementary split rings resonators (CSRRs) is proposed in this paper. The middle metal-grand of the SIW filter used to achieve 180° phase difference. forward-wave division propagating below characteristic cutoff frequency can be easily realized by four resonators. Good in-band performance (amplitude imbalance are less than 0.16 dB 2°) over passband implemented.
Background and Aim: In the construction of a sports powerhouse, government has paid more attention to training track field athletics, learning management is one important components athletics. The deviation cultural achievements Universities Track Field Athletes exposes inadequacy model, optimizing model an effective measure improve comprehensive quality This study was construct in Guangzhou. Materials Methods: employs methods in-depth interviews, questionnaire surveys, Delphi method,...