Global Patent Index - EP 1154513 A4

EP 1154513 A4 20020724 - BUILT-IN ANTENNA OF WIRELESS COMMUNICATION TERMINAL

Title (en)

BUILT-IN ANTENNA OF WIRELESS COMMUNICATION TERMINAL

Title (de)

EINGEBAUTE ANTENNE FÜR DRAHTLOSES KOMMUNIKATIONSGERÄT

Title (fr)

ANTENNE CONSTITUEE D'UN TERMINAL DE COMMUNICATION RADIO

Publication

EP 1154513 A4 20020724 (EN)

Application

EP 00939108 A 20000621

Priority

  • JP 0004044 W 20000621
  • JP 36828499 A 19991224
  • JP 2000056476 A 20000301
  • JP 2000118692 A 20000419

Abstract (en)

[origin: EP1154513A1] Dipole antenna 12 is constructed of rectangular-wave-shaped antenna elements and the rectangular-wave-shaped antenna elements are mounted in such a way that the longitudinal direction is quasi-perpendicular to the upper surface (horizontal plane) of the radio communication terminal. A signal received by dipole antenna 12 is sent to a transmission/reception circuit via balanced/unbalanced conversion circuit 13. Here, balanced/unbalanced conversion circuit 13 minimizes the current that flows into base plate 11, thus preventing the antenna operation by base plate 11. <IMAGE>

IPC 1-7

H01Q 1/24; H01Q 1/38; H01Q 9/04; H01Q 9/28; H01Q 9/42; H01Q 21/28

IPC 8 full level

H01Q 1/24 (2006.01); H01Q 1/36 (2006.01); H01Q 1/38 (2006.01); H01Q 9/04 (2006.01); H01Q 9/28 (2006.01); H01Q 9/42 (2006.01); H01Q 21/28 (2006.01)

CPC (source: EP)

H01Q 1/243 (2013.01); H01Q 1/244 (2013.01); H01Q 1/36 (2013.01); H01Q 1/38 (2013.01); H01Q 9/0407 (2013.01); H01Q 9/0421 (2013.01); H01Q 9/28 (2013.01); H01Q 9/42 (2013.01); H01Q 21/28 (2013.01)

Citation (search report)

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 1154513 A1 20011114; EP 1154513 A4 20020724; AU 5428200 A 20010709; CN 1345473 A 20020417; WO 0148860 A1 20010705

DOCDB simple family (application)

EP 00939108 A 20000621; AU 5428200 A 20000621; CN 00805491 A 20000621; JP 0004044 W 20000621