Design of Wide Band Low Noise Amplifier for Antenna Testing System

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

“…The proposed design maintains good gain flatness of 11.1-12.6 dB across the entire bandwidth, efficiency higher than 50 % and output power of 40 dBm. Wideband power amplifier design based on a new concept of scattering parameters is presented in [18]. This work shows the variation of the gain between 10 and 14 dB over the entire bandwidth, good input return loss (S 11 ) of -20dB, and output return loss (S 22 ) of less than -10 dB.…”

“…The design provides up to 12.4dB gain, but it suffers from limited bandwidth where covers from 5.6GHz to 6GHz (0.4GHz). Recently, many researchers have designed and developed power amplifiers, but most of the designed power amplifiers have been suffered from limited bandwidth, and high inter-modulation distortion which is considered a measure of linearity of the amplifier [14][15][16][17][18][19][20][21][22][23][24][25]. In [14], authors designed single stage wideband power amplifier with flat gain of 10-11.8 dB, and good input and output return loss.…”