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

Mussa Mabrok, Zahriladha Zakaria, Tole Sutikno, Ammar Alhegazi


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) less than -10dB, gain (S21) more than 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 less than 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.


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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Bulletin of Electrical Engineering and Informatics (BEEI)
ISSN: 2089-3191, e-ISSN: 2302-9285
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