Design of a miniaturized antenna for Bluetooth-enabled hearing aid devices

The increasing growth of available wireless Bluetooth low cost chipsets operating at 2.4-2.5 GHz has attracted the industrial companies to incline towards this range of frequency in designing their products. Design challenges of a miniaturized bluetooth antenna for wearable hearing aid devices are discussed. Simulation results of the optimized loaded antenna in the presence of a human head model are demonstrated in this paper. The proposed antenna is fabricated and tested. The feasibility of the overall system operation is verified through measurements using the standard SAM head model.