EP 1032137 A1 20000830 - Antenna with improved efficiency
Title (en)
Antenna with improved efficiency
Title (de)
Antenne mit verbesserten Wirkungsgrad
Title (fr)
Antenne à efficacité de liaison ameliorée
Publication
Application
Priority
FR 9902157 A 19990222
Abstract (en)
The aerial includes a quarter wave length of coaxial wire to provide signal coupling. The transmitting and receiving system for a mobile telephone includes a screened metal box (1) and an aerial support (2) mounted on the box by one end. The aerial (6) is mounted on the second end of the aerial support. The aerial support has a physical length which is electrically equal to a quarter wavelength of the signal transmitted by the aerial. The support may also be provided with reactive components in order to assist in providing the quarter wavelength characteristic. The reactive components may be localized, so that the quarter wavelength characteristic can be provided in two frequency bands. The aerial support lies parallel to the screened box of the telephone, and is on the side opposite to the loudspeaker. It may be formed from a coaxial cable.
Abstract (fr)
L'invention concerne un émetteur récepteur, notamment un téléphone pour réseau mobile, comprenant un boîtier métallique ou blindé (1), un support d'antenne (2) monté sur le boîtier par une extrémité, et une antenne (6) montée sur l'autre extrémité du support d'antenne, le support d'antenne présentant une longueur physique ou électrique sensiblement égale au quart de la longueur des ondes émises par l'antenne. L'invention permet d'améliorer l'efficacité de la liaison. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 1/24 (2006.01); H01Q 9/30 (2006.01); H04B 1/03 (2006.01); H04B 1/08 (2006.01); H04B 1/38 (2006.01); H04M 1/03 (2006.01); H04Q 7/20 (2006.01); H04Q 7/32 (2006.01)
CPC (source: EP US)
H01Q 1/242 (2013.01 - EP US); H01Q 1/243 (2013.01 - EP US)
Citation (search report)
- [XA] EP 0675562 A1 19951004 - DEUTSCHE TELEKOM AG [DE]
- [XA] DE 19726570 C1 19981224 - RETRONIKA GES FUER TELEKOMMUNI [DE]
- [A] WO 9421053 A1 19940915 - DICKIE ROBERT G [CA]
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)
EP 1032137 A1 20000830; AU 1635900 A 20000824; CA 2294578 A1 20000822; FR 2790153 A1 20000825; JP 2000252729 A 20000914; US 2001050642 A1 20011213; US 6642891 B2 20031104
DOCDB simple family (application)
EP 00400234 A 20000131; AU 1635900 A 20000211; CA 2294578 A 20000105; FR 9902157 A 19990222; JP 2000043615 A 20000221; US 49875000 A 20000207