Novel sensing techniques of chipless RFID sensor for infrastructure

Abstract

Monitoring applications using sensors are being led by the government to address the problem of aging infrastructure in Japan. There are various methods for sensing but the durability of general infrastructures and buildings have already exceeded 30 years which makes it difficult to address the issue. As one of the solutions we focused on the technology of "Chipless sensor" that applies “Chipless RFID” technology composed only of metal patterns without using electronic components such as IC chips. This report describes a sensor that can detect moisture with just metal patterns by supplying power from the reader.