| Autor: |
Sasikanta Kumar, Vaddi Raghavaiah, P.V.N. Murthy, V. K. Hariharan, P Sowjanya, Varia Ashok Kumar, R. Renuka, M. Nageswara Rao |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
2016 International Conference on ElectroMagnetic Interference & Compatibility (INCEMIC). |
| DOI: |
10.1109/incemic.2016.7921508 |
| Popis: |
GSAT-17 spacecraft is one of the most complicated and technologically advanced Satellites being built by Indian Space Research Organisation (ISRO). The payload configuration of GSAT-17 spacecraft is 24 channels In Normal C-Band Transponders, 12 channels in Upper Ext. C-Band Transponders, 2 Channels in Lower Extended C transponders, 2 Channels each in MSS and DRT/SAR. For Lower Ext-C band, 0.75m × 0.77m Tx./Rx. patch array (8×4) antenna is designed for both uplink and downlink signals. This antenna is mounted on EV top of the satellite and provides coverage to southern Indian peninsula and Antarctica. This poses a charging threat, if not properly grounded, due to GEO spacecraft charging. Hence a good grounding scheme is necessary for ESD compliance. A study was taken up to assess the surface and internal charging effects on the antenna and proper grounding scheme was worked out to mitigate this problem. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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