Abstract
To reduce the power consumption of the wake-up receiver the LNA is removed from the receiver chain, making the mixer the first sub-block after the antenna. The LNA can be removed, since the transmission distance is small in a body area network. The design of a mixer-first receiver is analyzed in depth in this chapter. A closed-form model is derived describing the transducer power gain and noise figure of the passive mixer. Additionally, an automatic frequency control loop is presented and two low-power FSK demodulators are discussed.
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Lont, M., Milosevic, D., van Roermund, A. (2014). Low-Power Zero-IF Receiver Design. In: Wake-up Receiver Based Ultra-Low-Power WBAN. Analog Circuits and Signal Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-06450-5_4
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DOI: https://doi.org/10.1007/978-3-319-06450-5_4
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