Development andIn VivoPerformance Evaluation of 10–60-MHz Band Impulse-Radio-Based Transceiver for Deep Implantation Having 10 Mbps

摘要

In view of the requirements for high-speed, highly reliable wireless implant communication, we have developed an implant transceiver working at a 10–60-MHz band. The developed transceiver is based on an impulse radio technology with multipulse position modulation to increase the communication speed and reliability, and utilizes the automatic equalization technique to suppress waveform distortion and intersymbol interference due to frequency-dependent tissue properties. The transmit antenna has a dimension ofn$2.6,,text {cm} times 1.6,,text {cm} times 1.6$ncm and a relative bandwidth of 16 by forming the radiation elements on a flexible magnetic sheet for miniaturization. Through annin vivonexperiment on a living swine, we have shown the feasibility of implant communication in a depth up to 26 cm with a minimum data rate of 10 Mbps. These results demonstrate the superiority of this new technology over all others reported so far in the literature.