Improved portable telecommunication terminal

摘要

The present invention relates to the use of Dielectric Resonator Antenna (DRA) systems in portable telecommunication devices to enable communication to different networks to be carried out simultaneously. For example, target network signal quality checks can be made on a GSM network while communication in a UMTS network continues without the use of compress mode. Since DRAs can provide high isolation between frequencies, the measurements will be accurate, due to the reduction of the noise between the frequencies used by different networks. Dielectric Resonator Antennas are antennas with high radiation efficiency and are a good match to most commonly used transmission lines and they are small in size.