Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems
Abstract
:1. Introduction
2. Materials and Methods
2.1. Reflectarray Design
2.2. TX and RX Patch Antenna Design
2.3. Simulations and Measurements of Reflection, Isolation and Maximum Gain
2.4. Statistical Analysis
3. Results
3.1. Reflection Coefficient without the Reflectarray
3.2. Isolations without and with the Reflectarray
3.3. Antenna Gains
4. Discussion
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
TX | Transmit |
RX | Receive |
FMCW | Frequency Modulated Continuous Wave |
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Reference | This Work | [24] | [25] | [15] |
---|---|---|---|---|
Isolation level (dB) | −50 to −55 | −62 to −73 | −30 | −36.7 |
Gain Tx/Rx dBi | 30/16 | 16/16 | 6.6/6.6 | 5.2/5.2 |
Size (cm) | 20 × 30 | 152 × 51 | 0.5 × 0.5 | 21× 29 |
Frequency (GHz) | 24–24.25 | 24.4–24.8 | 34.5–35.5 | 23–25 |
Technique | Reflectarray Antenna with center-fed back to back | A separation metallic serrated wall | A separation wall | EBG decoupling structure |
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Yamani, H.; Yoon, J. Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems. Sensors 2022, 22, 8972. https://0-doi-org.brum.beds.ac.uk/10.3390/s22228972
Yamani H, Yoon J. Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems. Sensors. 2022; 22(22):8972. https://0-doi-org.brum.beds.ac.uk/10.3390/s22228972
Chicago/Turabian StyleYamani, Hesham, and Jihwan Yoon. 2022. "Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems" Sensors 22, no. 22: 8972. https://0-doi-org.brum.beds.ac.uk/10.3390/s22228972