ASIC Implementation of Magnetic Induction based Wireless Communication System

In this paper, the ASIC design result of magnetic induction for wireless communication system is presented. Magnetic induction system is designed for measurement of distance and sensing status of river bed. The system has a low-power design because it has to be buried in the river bed for a long time. We implemented FPGA board to verify this system, and designed ASIC including digital modem block. Power consumption is 75mW, but real power we expect is low because the system has wake-up function for special case. Digital block gate count is 82k in TSMC 0.13um bcd plus process.

I. Introduction

For special sections such as riverbeds, soft ground, and mountain slopes, visual inspection by an administrator is impossible, and monitoring by wired sensors is impossible. Research on detection of abnormal conditions and gas leaks in buried gas pipelines is required through constant monitoring of special sections to recognize quickly abnormal signs.