A5034651816- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Smart Materials for Construction
- Structural Behavior of Reinforced Concrete
- Microwave and Dielectric Measurement Techniques
- Acoustic Wave Resonator Technologies
- Underwater Vehicles and Communication Systems
- Radio Wave Propagation Studies
- Ultrasonics and Acoustic Wave Propagation
- Innovative concrete reinforcement materials
- Inertial Sensor and Navigation
- Advanced Fiber Optic Sensors
- Material Properties and Applications
Qingdao University of Technology
2018-2019
Qingdao University
2019
ORCID
2018
In this paper, we introduce a reconfigurable artistic patch antenna with unidirectional circular-polarization (CP) radiation. The novel geometry composed of Chinese character Meng shaped and dual L-shaped feeding probes that are connected to PIN-diode-based switching circuit. simulated experimental results show the proposed achieves operating bandwidth from 2.4 2.5 GHz covers dynamically 14 channels IEEE 802.11/b/g/b/ax. By L-probes, either left-handed CP or right-handed can be generated...
In this paper, the improved design of a small automatic-identification-system (AIS) based man overboard (MOB) device is described. The one state-of-the-art maritime vehicular technologies and has been widely used in marine vehicles for search rescue (SAR) purposes. Similar devices have available market years; however, methodology hardware circuitries never exposed literature. This paper first reviews basic principles Gaussian minimum-shift keying modulation direct digital frequency synthesis...
This article introduces the basic concepts of Kanji patch antennas. We use two novel L-probe-fed Guo-and Meng-shaped patches operating in circular polarization as examples. The main parameters these symmetrical and asymmetrical shaped antennas were studied optimized via computer-aided simulation.
We present a cross-disciplinary approach applied to the strength prediction and correlation of cement composites in this paper. The empirical models for predicting flexural compressive strengths kind fiber reinforced composites, known as engineered cementitious (ECCs), were first developed. Nonlinear regressions measurement data destructive compression test four-point bending test. Each these tests was conducted on 36 specimens at growing ages (3, 7, 14, 28 days), wherein three mixes ECC...
This paper presents a microstrip loop antenna as sensing element to be applied the corrosion detection of fiber-reinforced polymer (FRP)-strengthened steel structure. For logical determination yet simplified design, several hypotheses in were setup for sensor model EM simulation (HFSS). loop-antenna is capable detecting growth depth via monitoring reduction resonant frequency. An average sensitivity frequency reached 0.972 MHz/μm was achieved. With advancement microwave technology, cost...
In order to determine the unknown complex permittivity of any microwave dielectric laminate, this paper describes a reliable and accurate method for obtaining permittivity. The coaxial probe is used as first step predict laminates. second regulating step, wherein microstrip-line (ML) open-circuit stubs (OCSs) are designed fabricated based on obtained from step. These values reference establish an electromagnetic model using EM simulator CST, compared with measured mean value input impedance...