(19)
(11)EP 2 182 644 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
30.03.2011 Bulletin 2011/13

(43)Date of publication A2:
05.05.2010 Bulletin 2010/18

(21)Application number: 09172396.5

(22)Date of filing:  07.10.2009
(51)Int. Cl.: 
H04B 1/40  (2006.01)
H01Q 1/27  (2006.01)
H01Q 1/40  (2006.01)
H01Q 1/24  (2006.01)
H01Q 1/38  (2006.01)
H01Q 21/28  (2006.01)
(84)Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
AL BA RS

(30)Priority: 30.10.2008 KR 20080107239

(71)Applicant: SAMSUNG ELECTRONICS CO., LTD.
Suwon-si, Gyeonggi-do (KR)

(72)Inventors:
  • Park, Joo-Hwan
    Suwon-si, Gyeonggi-do (KR)
  • Kwon, Oh-Yong
    Suwon-si, Gyeonggi-do (KR)
  • Lee, You-Sung
    Suwon-si, Gyeonggi-do (KR)

(74)Representative: Ketelaars, Maarten F.J.M. 
Nederlandsch Octrooibureau J.W. Frisolaan 13
2517 JS Den Haag
2517 JS Den Haag (NL)

  


(54)Antenna device for portable wireless terminal


(57) An antenna device for a portable wireless terminal is provided. The antenna device includes a main antenna for mobile communication for transmitting and receiving signal in a first frequency band, a Transmit (Tx) sub-antenna for transmitting signals in a second frequency band, a Receive (Rx) sub-antenna for receiving signals in a third frequency band, and a controller for selectively using one of the Tx sub-antenna and the Rx sub-antenna if the second frequency band overlaps with the third frequency band, and for providing control such that the Tx sub-antenna and the Rx sub-antenna are simultaneously used if the second frequency band does not overlap with the third frequency band. Accordingly, without increasing the volume of the portable wireless terminal, an antenna space can be ensured and radiation performance can be improved.