On Band-Pass Δ-Σ Modulators Suitable for Microwave Class-S Power Amplifiers

Conference: GeMIC 2008 - German Microwave Conference
03/10/2008 - 03/12/2008 at Hamburg-Harburg, Germany

Proceedings: GeMIC 2008

Pages: 4Language: englishTyp: PDF

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Ersoy, E.; Meliani, C.; Khalil, I.; Heinrich, W. (Ferdinand-Braun-Institut für Höchstfrequenztechnik (FBH), Gustav-Kirchhoff-Str. 4, D-12489 Berlin, Germany)

The design of a Δ-Σ modulator (DSM) for class-S amplifiers for 2 GHz signals with 8 GS/s sampling rate is presented, with particular focus on the stability condition. The results are supported by experiments using a bit-pattern generator. Furthermore, the statistic occurrence of binary symbols in the bit pattern is investigated and a statistical measure for the stability condition is deduced.