Preliminary Analysis of the Effects of the Ground Plane on the Element Patterns of SKA1-Low
| Autor: | Pietro Bolli, M. Bercigli, Paola Di Ninni, Giuseppe Virone, Maria Grazia Labate |
|---|---|
| Přispěvatelé: | ITA, GBR |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Acoustics 020208 electrical & electronic engineering 020206 networking & telecommunications Terrain 02 engineering and technology Dielectric radio astronomy antenna Radiation pattern Preliminary analysis Radio telescope 0202 electrical engineering electronic engineering information engineering Element (category theory) Antenna gain Ground plane |
| Zdroj: | Eucap 2020, 15-20 March 2020 info:cnr-pdr/source/autori:Bolli P.; Bercigli M.; Ninni P.D.; Labate M.G.; Virone G./congresso_nome:Eucap 2020/congresso_luogo:/congresso_data:15-20 March 2020/anno:2020/pagina_da:/pagina_a:/intervallo_pagine |
| DOI: | 10.23919/eucap48036.2020.9135350 |
| Popis: | Each station of the SKA1-Low radio telescope is composed by 256 dual-polarized log-periodic antennas deployed over a metallic ground plane with 42 m diameter. This station is usually modelled in EM simulators by considering an infinite ground plane, which drastically reduces the computational time. This contribution shows that a finite ground plane can bring to quite significant differences in some embedded element patterns with respect to the infinite ground plane case. Furthermore, we show the impact on the antenna pattern of different dielectric media surrounding the finite ground plane. For instance, at 50 MHz the maximum of the antenna gain decreases by 5% for the terrain with 10% moisture level. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|