| The Broadband Spiral Antenna Design Based on Hybrid Backed-cavity | |
| Chunheng Liu; Yueguang Lu; Chunlei Du; Jingbo Cui; Ximing Shen | |
| Volume | 58 |
| Pages | 1876-1882 |
| 2010 | |
| Language | 英语 |
| Indexed By | SCI ; Ei |
| Subtype | 会议论文 |
| Abstract | Here, a hybrid backed-cavity with electromagnetic band-gap (EBG) structure and a perfect electronic conductor (PEC) is proposed for an Archimedean spiral antenna. This cavity makes the spiral antenna work operate over the 10:1 bandwidth and without the loss introduced by absorbing materials that are used conventionally to broadband spirals. Based on the artificial magnetic conductor (AMC) characteristic, an EBG is placed in the outer region of backed-cavity to improve the blind spot gain at low frequency. A PEC at the center of the structure is used to obtain high gain at high frequency. The antenna performances are improved significantly for of the low profile spiral antenna is improved significantly. A typical spiral antenna with a hybrid backed cavity is fabricated and studied experimentally. The experimental data are consistent with that of the simulation results.; Here, a hybrid backed-cavity with electromagnetic band-gap (EBG) structure and a perfect electronic conductor (PEC) is proposed for an Archimedean spiral antenna. This cavity makes the spiral antenna work operate over the 10:1 bandwidth and without the loss introduced by absorbing materials that are used conventionally to broadband spirals. Based on the artificial magnetic conductor (AMC) characteristic, an EBG is placed in the outer region of backed-cavity to improve the blind spot gain at low frequency. A PEC at the center of the structure is used to obtain high gain at high frequency. The antenna performances are improved significantly for of the low profile spiral antenna is improved significantly. A typical spiral antenna with a hybrid backed cavity is fabricated and studied experimentally. The experimental data are consistent with that of the simulation results. |
| Conference Name | IEEE Transactions on Antennas and Propagation |
| Conference Date | 2010 |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/7883 |
| Collection | 微细加工光学技术国家重点实验室（开放室） |
| Corresponding Author | Chunheng Liu |
| Affiliation | 中国科学院光电技术研究所 |
| Recommended Citation GB/T 7714 | Chunheng Liu,Yueguang Lu,Chunlei Du,et al. The Broadband Spiral Antenna Design Based on Hybrid Backed-cavity[C],2010:1876-1882. |
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