Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses
User effects on portable antennas can decrease the global terminal performance, such as reducing the battery life or the wireless coverage. People presence will modify the input impedance, the far field radiation pattern, the radiation efficiency, and the near field. In this paper, we investigate th...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2017/7192491 |
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| _version_ | 1832568103195639808 |
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| author | Pedro Luis Carro Jesús de Mingo Paloma García-Dúcar Antonio Valdovinos |
| author_facet | Pedro Luis Carro Jesús de Mingo Paloma García-Dúcar Antonio Valdovinos |
| author_sort | Pedro Luis Carro |
| collection | DOAJ |
| description | User effects on portable antennas can decrease the global terminal performance, such as reducing the battery life or the wireless coverage. People presence will modify the input impedance, the far field radiation pattern, the radiation efficiency, and the near field. In this paper, we investigate the influence of the user on the input impedance by means of a new statistical approach which relies on uncertainty, where a handheld antenna works in two modes (data and talk) while people couple to the antenna. Studying some reflection coefficient measurements performed with a vector network analyzer (VNA), a standard framework based on uncertainty ellipses is developed. Finally, the method is applied to some antenna prototypes, showing its advantages and reliability to quantify and compare proximity effects. |
| format | Article |
| id | doaj-art-b9609fa711e044cbb9d7a542d212d404 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-b9609fa711e044cbb9d7a542d212d4042025-02-03T00:59:49ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772017-01-01201710.1155/2017/71924917192491Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance EllipsesPedro Luis Carro0Jesús de Mingo1Paloma García-Dúcar2Antonio Valdovinos3Department of Electronic Engineering and Communications, Aragon Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, SpainDepartment of Electronic Engineering and Communications, Aragon Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, SpainDepartment of Electronic Engineering and Communications, Aragon Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, SpainDepartment of Electronic Engineering and Communications, Aragon Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, SpainUser effects on portable antennas can decrease the global terminal performance, such as reducing the battery life or the wireless coverage. People presence will modify the input impedance, the far field radiation pattern, the radiation efficiency, and the near field. In this paper, we investigate the influence of the user on the input impedance by means of a new statistical approach which relies on uncertainty, where a handheld antenna works in two modes (data and talk) while people couple to the antenna. Studying some reflection coefficient measurements performed with a vector network analyzer (VNA), a standard framework based on uncertainty ellipses is developed. Finally, the method is applied to some antenna prototypes, showing its advantages and reliability to quantify and compare proximity effects.http://dx.doi.org/10.1155/2017/7192491 |
| spellingShingle | Pedro Luis Carro Jesús de Mingo Paloma García-Dúcar Antonio Valdovinos Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses International Journal of Antennas and Propagation |
| title | Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses |
| title_full | Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses |
| title_fullStr | Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses |
| title_full_unstemmed | Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses |
| title_short | Statistical Antenna Proximity Effect Modeling with Uncertainty Impedance Ellipses |
| title_sort | statistical antenna proximity effect modeling with uncertainty impedance ellipses |
| url | http://dx.doi.org/10.1155/2017/7192491 |
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