Low-power and area-efficient PSK demodulator for wirelessly powered implantable command receivers

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Low-power and area-efficient PSK demodulator for wirelessly powered implantable command receivers

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Published

A phase shift keying demodulator featuring miniaturisation and ultra-low power is presented. By taking advantage of a high signal-to-noise ratio on wirelessly power-combined data transmission, the demodulation can be performed without the carrier recovery circuits requiring phase lock loop, making the design quite competitive with those currently demonstrated in the literature.

Inspec keywords: phase locked loops; demodulators; phase shift keying; low-power electronics; radio receivers

Other keywords: phase lock loop; signal-to-noise ratio; wirelessly power-combined data transmission; phase shift keying demodulator; carrier recovery circuits; ultra-low power

Subjects: Radio links and equipment; Modulators, demodulators, discriminators and mixers

References

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      • Wang, G., Liu, W., Sivaprakasam, M., Zhou, M., Weiland, J.D., Humayun, M.S.: `A wireless phase shift keying transmitter with Q-Independent phase transition time', Proc. IEEE 27th EMBS Conf., 2005, p. 5238–5241.
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      • Mohseni, P., Najafi, K.: `A 1-MHz, 5-Kb/s wireless command receiver for electronic site selection in multichannel neural biopotential recording', Proc. IEEE 28th EMBS Conf., 2006, p. 6241–6244.
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      • Black, D.J., Harrison, R.R.: `Power, clock, and data recovery in a wireless neural recording device', Proc. IEEE Int. Symp. Circuits and Systems, 2006, p. 5083–5086.
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      • Zhou, M., Liu, W., Wang, G., Sivaprakasam, M., Yuce, M.R., Weiland, J.D., Humayun, M.S.: `A transcutaneous data telemetry system tolerant to power telemetry interference', Proc. IEEE 28th EMBS Conf., 2006, p. 5884–5887.
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