The biggest challenge in the project was to insert a very small antenna into the metal part of the wearing device while respecting the very demanding aesthetic restrictions on jewelry design. The goal is the provision of a compact and efficient antenna, which is located in the shell of the wearable device (“smart jewelry”). The antenna is designed for BLE (Bluetooth Low-Energy) communication.

The system design was performed using computer simulations and fine-tuning of the prototype.

The antenna is a version of the microstrip-patch antenna, in accordance with the shape of the jewelry. Antenna performance is superior to the existing solutions in smart jewelry. The antenna provides longer reach and/or more stable communication between jewelry and smartphone than existing solutions on the market and also improves the performance of jewelry in various applications, including monitoring of older people.

Client: Smartline, Amsterdam, The Netherlands