Abstract
This paper presents an ultra-wideband compound spiral antenna fed by a wideband balun. The antenna is studied as an isolated element and as a part of a spiral-based ground-penetrating radar (GPR) detection system. The geometry of this antenna combine equiangular spiral and Archimedean spiral smoothly. The outer of spiral line is made a complex deformation. Moreover, an especial reflection cavity is used to achieve a good directionality. The final antenna has a size of φ 60mm × 60mm, which is only 10.9% than the conventional planar spiral antenna. Result shows the antenna achieved a good performance of VSWR, axial ratio and gain from 1GHz∼18.5GHz, which meets the needs of the UWB GPR detection system.
| Original language | English |
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| Pages | 255-258 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2013 |
| Event | 2013 3rd IEEE International Conference on Microwave Technology and Computational Electromagnetics, ICMTCE 2013 - Qingdao, China Duration: 27 Aug 2013 → 29 Aug 2013 |
Conference
| Conference | 2013 3rd IEEE International Conference on Microwave Technology and Computational Electromagnetics, ICMTCE 2013 |
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| Country/Territory | China |
| City | Qingdao |
| Period | 27/08/13 → 29/08/13 |
Keywords
- Archimedean spiral
- Equiangular spiral
- Miniaturized
- Ultra-wideband