C_band_PA_MMICC-BAND POWER AMPLIFIER 525.787 Microwave Monolithic Integrated Circuits (MMIC) Design Abstract The design of class AB MMIC Power Amplifier is described in this paper. This design is a part of a duplex transceiver employing a receive array for the C-band HiperLAN wireless local area network (WLAN) and industrial, scientific, and medical (ISM) frequencies. The designed was implemented using TriQuint TQPED 0.5-um pHEMT process. Good performance in the frequency band of 5.15 to 5.875 GHz, center frequency 5.5125 GHz, was achieved. The PA results achieved are as follows: small- signal gain of 12.4 dB across the band; output power > +20 dBm and PAE of >30% at the 1dB compression point; VSWR of 1.5:1 output was achieved. Introduction The Power Amplifier designed in this proje……