Interposer-based smartcard system with active wireless communication

The trend to integrate more and more functionality into smaller and smaller devices is still ongoing. Most smart systems are communicating wireless, while non-stationary systems require an integrated power supply. This paper presents a system, which is integrated into a standardized smartcard format and is capable of active wireless transmission and can be used for location detection, ranging, localization or access control. The dimension of an ISO 7816 ID-1 smartcard, which is the most common used smartcard, is about 86 by 54 mm. Integrating a smart system on this dimensions is not an problem. But the maximal height of a smartcard is only 0.76 millimeters. So integrating functionality by using multiple components is still an issue.