Power Amplifier of Two-stage MMIC with Filter and Antenna Design for Transmitter Applications

This article introduces integrated transmitter for 802.11bgn applications. The proposed integrated transmitter consists of power amplifier (PA) of two-stage monolithic microwave integrated circuit (MMIC) with broadband pre-distorter, band-pass Gm-C filter, distributed single-pole double-throw (SPDT) radio frequency (RF) switching and chip antenna. The PA design presents conversion gain of 20dB, the output 1-dB compression point (OP 1dB) of 20dBm and power added efficiency (PAE) more than 20%, respectively. The presented PA exhibits error vector magnitude (EVM) of 2.9% and adjacent channel power ratio (ACPR) of -25.6dBc. The implemented integrated transmitter using 0. 18um CMOS technology has experimental outdoor/ indoor throughput base on channels, distance and concurrently complies with the 802.11bgn requirement.