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Design of an Ultra Low Power RFCMOS Transceiver for a Self-Powered IoT Node
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In this thesis a transceiver characterized to consume ultra low power based in RFCMOS
for a self-powered Internet of Things node is studied and designed. The transceiver
consists in a simple Non-Coherent system, which means that the signal is picked up
by the receiver based on energy detection, as a result it is one of the simplest existing
transceivers once it does not need in the transmitter a complex pulse generator and
certainly in the receiver as well. It is composed by an OOK modulator, a pulse generator
that will determine the centre frequency and a driver amplifier connected to a 50W antenna
for the transmitter. While in the receiver there is as first block a Low Noise Amplifier, a
self-mixer that will prepare the signal for the integrator and a comparator working as a
energy detector.
The UWB transceiver will be able to operate with a centre frequency of 4.5 GHz and a
bandwidth of at least 500 MHz. It is critical to notice that the system is consuming a value of 96 mW for the power and accomplishing the power spectrum density -43 dBm/MHz using an OOK modulation technique. The entire system was implemented with standard 130nm CMOS technology.
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UWB CMOS IR Low Power Transceiver Internet of things