A short-impulse UWB BPSK transmitter for large-scale neural recording implants.

Publication Type:

Journal Article

Authors:

Rezaei, M; Bahrami, H; Mirbozorgi, A; Rusch, Leslie A; Benoit Gosselin

Source:

Conf Proc IEEE Eng Med Biol Soc, Volume 2016, p.6315-6318 (2016)

Keywords:

Brain, Brain-Computer Interfaces, Equipment Design, Prostheses and Implants, Wireless Technology

Abstract:

<p>In this paper, a short-impulse ultra-wide band (UWB) transmitter is introduced to enable large-scale neural recordings within miniature brain implants including thousands of channels. The proposed impulse radio UWB transmitter uses a BPSK modulation scheme, the carrier signal of which uses only two delayed impulses to encode the transmitted signal. The proposed UWB transmitter has been implemented into a CMOS 180 nm technology. It occupies 300 μm × 230 μm, and consumes only 6.7 pJ/bit from a 1.8-V supply. Experimental results show that the transmitter has a bandwidth of 2.6 GHz to 5.6 GHz and achieves a maximum data rate of 800 Mbps, which outperforms existing low-power UWB transmitters for similar applications.</p>