| Autor: |
D. Brousse, J.F. Villemazet, J.-L. Cazaux, P. Michel, J. Maynard |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
2007 European Microwave Conference. |
| Popis: |
This paper proposes a new predistortion lineariser architecture allowing a new advanced shape tuning capability in addition to the classical magnitude control of the gain expansion and phase shift. This new feature is compatible with a wide band operation. A frequency bandwidth of 1.8 GHz has been demonstrated with a Ku-band TWTA between 10.95 and 12.75 GHz. A C/I3 improvement of about 20 dB at -6 dB IBO per carrier and a NPR increase of 7 dB at -6 dB IBO were obtained thanks to this new lineariser concept with regard to a conventional diode predistortion lineariser. This advanced lineariser is currently introduced in the new Thales Alenia Space Linearised Channel Amplifier space equipment (LCAMP). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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