EP 1145378 B1 20130925 - DUAL-BAND TRANSMISSION DEVICE AND ANTENNA THEREFOR
Title (en)
DUAL-BAND TRANSMISSION DEVICE AND ANTENNA THEREFOR
Title (de)
ZWEIBAND-ÜBERTRAGUNGSANORDNUNG UND EINE ANTENNE FÜR DIESE ANORDNUNG
Title (fr)
DISPOSITIF DE TRANSMISSION BI-BANDE ET ANTENNE POUR CE DISPOSITIF
Publication
Application
Priority
- FR 0001586 W 20000608
- FR 9913976 A 19991108
Abstract (en)
[origin: WO0135492A1] The invention concerns a device whereof the antenna (1) is made according to the microstrip technique. A rear edge (10) of a body (31) of its patch (6) is provided with a short-circuit (S) whereby a primary resonance mode of the quarter wave type can be energised from a connection line (C1). A slot (17) penetrates into said patch from its periphery and separates said body from a tab (33) which remains connected by a passage (32). A secondary resonance mode uses said body, said passage and said tab. It can be energised by the same connection line to a frequency double that of the primary resonance. The short-circuit can be produced with components directly mounted on the antenna substrate edge and can then have inductive, resistive and controlled components. The invention is useful in particular for producing a double mode radio telephone system using two norms GSM and DCS.
IPC 8 full level
H01Q 9/04 (2006.01); H01Q 13/08 (2006.01); H01Q 1/24 (2006.01); H01Q 1/28 (2006.01); H01Q 1/36 (2006.01); H01Q 1/38 (2006.01); H01Q 5/00 (2006.01); H01Q 5/10 (2015.01); H01Q 5/357 (2015.01); H01Q 9/40 (2006.01); H04M 1/02 (2006.01)
CPC (source: EP US)
H01Q 1/243 (2013.01 - EP US); H01Q 1/246 (2013.01 - EP US); H01Q 5/357 (2015.01 - EP US); H01Q 9/0421 (2013.01 - EP US)
Citation (examination)
JP H08250917 A 19960927 - MATSUSHITA ELECTRIC IND CO LTD
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0135492 A1 20010517; CN 1223048 C 20051012; CN 1336023 A 20020213; EP 1145378 A1 20011017; EP 1145378 B1 20130925; FR 2800920 A1 20010511; FR 2800920 B1 20060721; JP 2003514423 A 20030415; JP 4549600 B2 20100922; US 6545640 B1 20030408
DOCDB simple family (application)
FR 0001586 W 20000608; CN 00802572 A 20000608; EP 00942171 A 20000608; FR 9913976 A 19991108; JP 2001537129 A 20000608; US 86806701 A 20010614