RF Front-end with Antenna for Bluetooh Wireless of Medical Biosensing

The proposed article introduces RF wireless integrated transceiver for Bluetooth wireless of medical biosensing applications. The proposed wireless integrated transceiver consists of two-stage power amplifier (PA) with predistorter, band-pass Gm-C filter, distributed single-pole double-throw (SPDT) radio frequency (RF) switching, low noise amplifier (LNA) and chip antenna. The presented PA design presents conversion gain of 13 dB, the output 1-dB compression point (OP1dB) of 2.7 dBm and power added efficiency (PAE) more than 20%, respectively. The presented LNA exhibits return loss of input more than 10.32 dB, return loss of output more than 10.77 dB, the produce gain between 8.16 dB and 13.1 dB, isolation more than 42 dB, the produce noise figure between 4.48 dB and 7.66 dB, the produce input 1-dB compression point (IP1dB) between -13.43 dB and -5.43 dB, respectively. The implemented integrated RF frontend using 0.18um CMOS technology has experimental outdoor/ indoor throughput base on channels, distance and concurrently complies with the Bluetooth wireless requirement.