ANTENNA DEVICE AND PORTABLE RADIO COMMUNICATION DEVICE COMPRISING SUCH ANTENNA DEVICE

摘要

The present invention relates to an antenna device for a portable radio communication device adapted for receiving radio signals in at least a first operating frequency band. The antenna device comprises a radiating element comprising a feeding portion and a tuning capacitor connected to the feeding portion of the radiating element. The antenna device further comprises a low pass filter connected to the feeding portion and to a high impedance low noise amplifier for the at least a first operating frequency band, between the tuning capacitor and the high impedance low noise amplifier.