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Design of DQPSK Demodulator for Implantable Biomedical Devices

Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Pilani, Pilani 333031, Rajasthan, India

E-mail Address: vaibhavgarg1995@gmail.com

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and

Kavindra Kandpal

http://orcid.org/0000-0002-2683-2230

Department of Electronics and Communication Engineering, Indian Institute of Information Technology, Allahabad, Prayagraj 211015, Uttar Pradesh, India

E-mail Address: kavindra_ec@yahoo.com

Corresponding author.

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https://doi.org/10.1142/S0218126620200078Cited by:2 (Source: Crossref)

Abstract

Implantable biomedical devices (IBDs) play a vital role in today’s healthcare industry. Such applications demand high data rate, low power and small-sized demodulators. This work presents a simple small-sized low-power architecture for differential quadrature phase shift keying (DQPSK) demodulator for these devices. The proposed circuitry is designed in UMC 90-nm CMOS technology and occupies a layout area of 0.015mm². It is operated at 1-V supply voltage with a power consumption of 405 $μ$ W. The carrier frequency is 10MHz and the obtained data rate is 20Mbps. Hence it exhibits a high data-rate-to-carrier-frequency (DRCF) ratio of 200% making it ideal for IBDs.

This paper was recommended by Regional Editor Piero Malcovati.

Keywords:

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