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| Design and Analysis of a Novel Ultra-wide Band Omni-directional Wire Antenna |
| Received:March 06, 2012 Revised:August 15, 2012 |
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| DOI： |
| KeyWord:ultra-wide band wire antenna cross structure omni-directional radiation |
| Author | Institution |
| ZHANG Yang |
School of Electronics and Information Engineering，Harbin Institute of Technology，Harbin，China |
| GUO Wen-bin |
School of Electronics and Information Engineering，Harbin Institute of Technology，Harbin，China |
| QIU Jing-hui |
School of Electronics and Information Engineering，Harbin Institute of Technology，Harbin，China |
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| Abstract: |
| A novel ultra-wide band omni-directional wire antenna was proposed. The crossed wire structure and small metal sphere were investigated to improve both the impedance bandwidth and radiation patterns. The proposed antenna was modeled and simulated in CST software. The results showed that the antenna can work well in 0.45GHz-28.4GHz, with VSWR less than 2; the radiation patterns of the proposed antenna keep stable within the whole band; out-of-roundness of the H plane is better than 5dB. The proposed antenna has important value in the field of electromagnetic environment monitoring. |
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