A sub-GHz high data-rate transceiver for wireless sensor network in IoT

A sub-GHz broadband RF transceiver for wireless sensor network nodes in Internet of Things was designed and implemented in 130nm CMOS process. Several methods like noise cancellation, inverter-based amplifier, 25% duty cycle LO specially for passive current-mode mixer are adopted and combined in the design process. The receiver presents -85dBm sensitivity at a packet error ratio of 1% and transmitter provides emission power up to 12dBm and error vector magnitude better than -30dBc. High data rate of 54Mbps can be measured, which substantially exceeds the common data rate of 100k-2Mbps of most mainstream wireless sensor network nodes.