Abstract
This paper presents two designs of reconstruction comb-line filters with symmetrical input for a class-S power amplifier system operating at 450 MHz. The class-S amplifier architecture is intended for highly efficient power amplification with demanding requirements for the design of the reconstruction filter terminating the final stage that operates in the pushpull current- mode. According to the measured results, the compact coaxial filters have insertion loss of less than 1 dB for the differential mode, a 3-dB-bandwidth of 27 MHz and a second pass-band at 2.8 GHz. The device can handle up to 300 W of input power and is mechanically tunable over at least one octave. © 2009 EuMA.
Cite
CITATION STYLE
Serebryakova, E., Samulak, A., Blau, K., & Hein, M. (2009). Reconstruction filters for switched-mode power amplifier systems. In European Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009 (pp. 1453–1456). https://doi.org/10.1109/EUMC.2009.5295961
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