Majid Lorestani - Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran
Ali Mir - Department of Electrical and Computer Engineering, Lorestan University, Khorramabad, Iran

In this paper, a GaAs pHEMT class A balanced power amplifier with a ۳-dB bandwidth of ۴.۵ GHz at the center frequency of ۹ GHz is presented. Our amplifier yields to an input/output-matching better than -۱۵ dB over this frequency band. Also, the realization of impedance matching network using microstrip line and lumped component is carried out. At the end, simulation results for the broadband impedance matching network are presented and analyzed

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