Design of low power IR-UWB transmitter for healthcare monitoring applications

There is an increasing need to develop low power medical devices for healthcare monitoring applications. Recently advancement in microelectronics, micro electro mechanical systems (MEMS), telecommunications and micro biomedical sensors have enabled both development and design of such devices. Different solutions have been developed such as wireless sensor networks (WSN), intelligent habitat systems and so on. In this paper, we focus on the actimery concept. The aim is the design of RF transmitter architecture to ensure the real time data transmission. The proposed architecture is based on the IEEE 802.15.4a standard and it operates in the mandatory channel 3 of the low band. The transmitter is expected to working at a data rate of 0.850 Kbps and using BPSK modulation. The simulated TX has peak amplitude of 325 mV, transmitted power of -13.05 dBm and a noise figure of 9.2 dB.