Wideband power amplifier based on Wilkinson power divider for s-band satellite communications

Mussa Mabrok, Zahriladha Zakaria, Tole Sutikno, Ammar Alhegazi

Abstract


This paper presents design and simulation of wideband power amplifier based on multi-section Wilkinson power divider. Class-A topology and ATF-511P8 transistor have been used. Advanced Design System (ADS) software used to simulate the designed power amplifier. The simulation results show an input return loss (S11)<-10dB, gain (S21)>10 dB over the entire bandwidth, and an output power around 28dBm at the Centre frequency of 3GHz. The designed amplifier is stable over the entire bandwidth (K>1). Inter-modulation distortion is -65.187dBc which is less than -50dBc. The designed amplifier can be used for the microwave applications which include weather radar, satellite communication, wireless networking, mobile, and TV.

Keywords


Power amplifier; Power combining; Satellite communications; Wideband; Wilkinson power divider

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DOI: https://doi.org/10.11591/eei.v8i4.1552

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