| Grant number: | 12/03292-0 |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| Start date: | May 01, 2012 |
| End date: | January 31, 2013 |
| Field of knowledge: | Engineering - Electrical Engineering - Telecommunications |
| Principal Investigator: | Luiz Cezar Trintinalia |
| Grantee: | Renata Valeri de Freitas |
| Host Institution: | Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
Abstract The recent applications that uses ultra-wide bandwidth and pulse communications demands antennas that fits better its constraints. Therefore, it is necessary to understand the behaviour of these antennas in all the bandwidth used and its response to input pulses. With this objective, some analysis tools for antennas in the time domain will be developed and used in order to explain their radiation mechanisms. Through the use of large structures with respect to the duration of the input pulse it is possible to identify how the pulse propagates and how it is reflected by the structure. The relationship between the pulse position and the radiation of the antenna is then established for every position. This procedure will enable the identification of the relationship between the antenna impulse response and the acceleration of charges in the structure. Besides, some results related to the performance of the antenna, such as dispersion, distortion and normalized energy radiation pattern will be presented and analyzed. The intention is also to evaluate the performance of a complete system of pulse communication and extract from this study guidelines for the project of antennas for these applications. | |
| News published in Agência FAPESP Newsletter about the scholarship: | |
| More itemsLess items | |
| TITULO | |
| Articles published in other media outlets ( ): | |
| More itemsLess items | |
| VEICULO: TITULO (DATA) | |
| VEICULO: TITULO (DATA) | |