Title :
Dual resonant active internal antenna for FM radio reception in mobile phones
Author :
Lindberg, Peter ; Cheng, Shi ; Kaikkonen, Andrei ; Hallbjörner, Paul
Author_Institution :
Laird Technol., Kista, Sweden
Abstract :
An on-ground internal antenna for FM radio reception in mobile phones is proposed and evaluated. By combining a parasitic loop radiator with a driven active monopole antenna, a dual resonant frequency response is achieved with an average effective antenna efficiency of -22.5 dB over the frequency band 88-108 MHz. The total volume of the antenna is 0.93 cm3 with a height above ground of 4 mm. A comparison with the conventional solution of re-using the headset cord as the antenna is included.
Keywords :
VHF antennas; frequency response; loop antennas; mobile handsets; monopole antennas; FM radio reception; driven active monopole antenna; dual resonant active internal antenna; frequency 88 MHz to 108 MHz; frequency response; mobile phones; on-ground internal antenna; parasitic loop radiator; Antenna measurements; Dipole antennas; Frequency modulation; Gain; Mobile antennas; Resonant frequency;
Conference_Titel :
Antenna Technology (iWAT), 2011 International Workshop on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-9133-9
DOI :
10.1109/IWAT.2011.5752317
