Liqing Zhao
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Liqing Zhao has a total of 8 co-authors. Here are the top co-authors by number of shared publications:
Hang Yin
College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao, People’s Republic of China
2 shared publicationsXinpei Zhang
College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao, People’s Republic of China
2 shared publicationsYuanyuan Yin
College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao, People’s Republic of China
2 shared publicationsChao Song
College of Mechanical and Electrical Engineering
1 shared publicationDongwei Wang
College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao, People’s Republic of China
1 shared publicationFangyan Ma
College of Mechanical and Electrical Engineering, Qingdao Agricultural University, Qingdao, People’s Republic of China
1 shared publication
Latest Publications
- 12 August 2023
- Published by Springer Nature in Journal of Food Measurement and Characterization
- Vol. 17 (6) , 6026-6038
Nano vector network analyzer effectively measures peanut moisture content
- 12 August 2023
- Published by Springer Nature in Journal of Food Measurement and Characterization
- Vol. 17 (6) , 6026-6038
Nano vector network analyzer effectively measures peanut moisture content
- Open Access
- 28 August 2022
- Published by Wiley in International Journal of Antennas and Propagation
- Vol. 2022, 1-12
Low-Cost Lens Antenna Design for Microwave Moisture Detection
In this study, a novel Vivaldi antenna with dimensions of 100 mm × 85 mm × 1.6 mm, designed for a moisture measurement system, is built to enhance the gain of conventional Vivaldi antennas in the low-frequency band to suit the needs of moisture detection. The fence structure and choke slot are modified to enhance the antenna’s radiation properties in the low-frequency band, and simulation is performed to determine how different structural parameters affect the antenna’s performance. The results show that in the frequency band of 5-6 GHz, the voltage standing-wave ratio (VSWR) of the antenna is less than 2, and the gain at 5.8 GHz reaches 16.2 dBi after installing the lens. Compared with conventional unmodified Vivaldi antennas, the gain at 5.8 GHz increases by approximately 6.11 dBi. The antenna is then processed and measured, and the measured results are in good agreement with the simulated results; hence, the antenna can be widely used in the field of moisture detection.
- 28 August 2022
- Published by Wiley in International Journal of Antennas and Propagation
- Vol. 2022, 1-12
Open AccessLow-Cost Lens Antenna Design for Microwave Moisture Detection
In this study, a novel Vivaldi antenna with dimensions of 100 mm × 85 mm × 1.6 mm, designed for a moisture measurement system, is built to enhance the gain of conventional Vivaldi antennas in the low-frequency band to suit the needs of moisture detection. The fence structure and choke slot are modified to enhance the antenna’s radiation properties in the low-frequency band, and simulation is performed to determine how different structural parameters affect the antenna’s performance. The results show that in the frequency band of 5-6 GHz, the voltage standing-wave ratio (VSWR) of the antenna is less than 2, and the gain at 5.8 GHz reaches 16.2 dBi after installing the lens. Compared with conventional unmodified Vivaldi antennas, the gain at 5.8 GHz increases by approximately 6.11 dBi. The antenna is then processed and measured, and the measured results are in good agreement with the simulated results; hence, the antenna can be widely used in the field of moisture detection.