RADIOCOMMUNICATIONS DEVICE, AND A SLOT LOOP ANTENNA

摘要

The antenna of this device is of the slot loop type. A conductive layer is deposited on the bottom surface of its substrate to reflect the waves transmitted or received by the resonating structure of the antenna. It is isolated from this structure to prevent parallel-plate resonance modes from being set up. A separator layer is fixed under the conductive layer to protect it from any capacitive coupling with other components of the device. It may be made of an insulating rigid foam. The invention applies to making a radiotelephone system.