title: A short-impulse UWB BPSK transmitter for large-scale neural recording implants.
abstract: 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.
authors.forename: M
authors.initials: M
authors.lastname: Rezaei
authors.forename: H
authors.initials: H
authors.lastname: Bahrami
authors.forename: A
authors.initials: A
authors.lastname: Mirbozorgi
authors.forename: Leslie A
authors.initials: LA
authors.lastname: Rusch
authors.forename: B
authors.initials: B
authors.lastname: Gosselin
mesh_terms: D001921:Brain / Q000502:physiology*; D062207:Brain-Computer Interfaces; D004867:Equipment Design; D019736:Prostheses and Implants; D059015:Wireless Technology