Multi-Resonance Characteristic of the L-Shaped Folded Monopole AntennaUsing Parasitic Elements

摘要

The latest trend in handset unit used in the cellular phone is to reduce-the size and the weight. Antennas used for such handsets must also follow downsizing of the handset unit and yet keep the antenna performance unchanged or even improved. Furthermore, built-in antennas for handset are becoming normal.