Design and Manufacture of Resonant Chipless Tags in Millimeter-Wave Band

In this paper, we introduce the first chipless tag in the mmWave band based on resonating elements. One goal is to introduce a millimeter-wave communication system based on chipless tags without a ground plane based on the traditional low-cost printing methods. For this purpose, millimeter-wave chipless resonant tags have been designed considering the trade-offs such as RCS signal level, losses, and design constraints. The proposed design is based on a single layer printing, where each resonating element is replicated to satisfy constraints related to the chipless reading process, at these frequencies. A reading range up to 20 cm has been noticed in an office environment.