Global Patent Index - EP 1962375 A1

EP 1962375 A1 20080827 - A multi-band antenna for a portable radio communication device

Title (en)

A multi-band antenna for a portable radio communication device

Title (de)

Mehrband-Antenne für ein tragbares Funkkommunikationsgerät

Title (fr)

Antenne multibande pour dispositif portable de communications radio

Publication

EP 1962375 A1 20080827 (EN)

Application

EP 07445005 A 20070220

Priority

EP 07445005 A 20070220

Abstract (en)

The present invention relates to a multi-band antenna arranged to provide a high frequency band and a low frequency band for a portable radio communication device, the multi-band antenna comprising a main antenna element (1) and a parasitic antenna element (2), wherein the main antenna element (1) is arranged to provide resonance in the high frequency band and the low frequency band, wherein the multi-band antenna comprises controllable switching means (9) arranged to tune the parasitic antenna element (2) to a first parasitic resonance center frequency (IIa) above a first main resonance center frequency (Ia) of the main antenna element (1) in a first state of the switching means (9) and to tune the parasitic antenna element (2) to a second parasitic resonance center frequency (IIb) below a second main resonance center frequency (Ib) in a second state of the switching means (9).

IPC 8 full level

H01Q 1/24 (2006.01); H01Q 5/00 (2006.01); H01Q 5/378 (2015.01); H01Q 9/04 (2006.01); H01Q 19/00 (2006.01)

CPC (source: EP)

H01Q 1/243 (2013.01); H01Q 5/378 (2015.01); H01Q 9/0421 (2013.01); H01Q 9/0442 (2013.01); H01Q 19/005 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FI FR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1962375 A1 20080827; WO 2008103102 A1 20080828

DOCDB simple family (application)

EP 07445005 A 20070220; SE 2008000131 W 20080219