A 2-D Scanning Spoof Surface Plasmon Polariton Diplexing Leaky-Wave Antenna for Sensing Applications
In this article, a 2-D scanning spoof surface plasmon polariton (SSPP) diplexing leaky-wave antenna (LWA) capable of 2-D real-time sensing is presented. The antenna operates in dual bands with one single feeding port, eliminating the need for designing an LWA array connected by complex beam-forming networks (BFNs) as in the traditional approach to achieve 2-D scanning. SSPP transmission lines with introduced asymmetry are employed to enhance the scanning rate and suppress the open stopband (OSB) of the LWA. The measured antenna achieves continuous scanning over 93° in the azimuth plane from 6.2 to 7.4 GHz and 102° in the elevation plane from 8.2 to 9.4 GHz. Furthermore, a frequency-diverse microwave sensing system based on the diplexing LWA is established for target-tracking scenarios. Simulation and measurement results are provided to validate the antenna’s efficacy.
Authors
- Ross Murch (ORCID: https://orcid.org/0000-0002-2527-7693)
- Dingfei Ma (ORCID: https://orcid.org/0000-0001-9844-3130)
- Qingfeng Zhang (ORCID: https://orcid.org/0000-0002-0038-0694)
- Jiachen Du (ORCID: https://orcid.org/0000-0002-0008-692X)
- Zihao Xu (ORCID: https://orcid.org/0009-0009-1815-8379)
Institutions
- Guangdong University of Technology (CN)
- City University of Hong Kong (HK)
- Hong Kong University of Science and Technology (HK)
- Southern University of Science and Technology (CN)
Publication Details
- Journal
- IEEE Transactions on Plasma Science
- Published
- 2025-06-17
- DOI
- https://doi.org/10.1109/tps.2025.3577728
- Citations
- 2
- Primary Topic
- Plasmonic and Surface Plasmon Research
- Type
- article
- Field-Weighted Citation Impact
- 1.35
Funders
- National Natural Science Foundation of China