Highly Linear Low-Power Wireless RF Receiver for WSN

Abstract

This paper introduces a low-power wireless RF receiver for the wireless sensor network. The receiver has improved linearity with incorporated current-mode circuits and high-selectivity filtering. The receiver operates at the 900-MHz industrial, scientific, and medical band and is implemented in 130-nm CMOS technology. The receiver has a frequency multiplication mixer, which uses a 300-MHz clock from a local oscillator (LO). The LO is implemented using vertical delay cells to reduce power consumption. The receiver conversion gain is 40 dB and the receiver noise figure is 14 dB. The receiver’s input third-order intercept point (IIP3) is −6 dBm and the total power consumption is 1.16 mW.