A 2.4 GHz ISM Band OOK Transceiver with High Energy Efficiency for Biomedical Implantable Applications

Shuenn Yuh Lee, Po Hao Cheng, Ching Fu Tsou, Chou Ching Lin, Gia Shing Shieh

Research output: Contribution to journalArticle

Abstract

This article presents a high energy efficiency, high-integrated, and low-power on-off keying transceiver for a 2.4 GHz industrial scientific medical band. The proposed receiver includes an input matching network, a low-noise amplifier, a novel single-to-differential envelope detector, a level shifter, cascaded baseband amplifiers, and a hysteresis comparator. The proposed transmitter includes a bias-stimulating circuit, a current-reused self-mixing voltage controlled oscillator, and a quadruple-transconductance power amplifier. Numerous proposed techniques implemented in the mentioned circuits improve the energy per bit and power efficiency. Therefore, the proposed receiver for short-distanced propagation can achieve a sensitivity of-46 dBm with a carrier frequency of 2.45 GHz and a high data rate of 2 Mbps. The proposed transmitter achieves an output power of-17 dBm with a high data rate of 20 Mbps. This work is fabricated in a TSMC 0.18 μm CMOS process and consumes 160 μW and 0.6 mW in the receiver and transmitter, respectively, from a 1.2 V supply voltage. The energy per bit of 80 pJ/bit in the receiver part and the figure of merit of 9 in the transmitter part are better than those of existing state-of-the-art transceivers.

Original languageEnglish
Article number8946570
Pages (from-to)113-124
Number of pages12
JournalIEEE Transactions on Biomedical Circuits and Systems
Volume14
Issue number1
DOIs
Publication statusPublished - 2020 Feb

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All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Electrical and Electronic Engineering

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