Fabricated Non-uniformly Distributed-Turns Coil

Newly developed coil antennas for High-Frequency (HF) Radio Frequency IDentification (RFID) are fabricated and presented. The coils use comparable Q-factors and are optimized for an enhanced magnetic field (H-field) by using non-uniformly distributed turns of the radiative elements. Measurements are performed for the proof-of-concept and compared to simulations.