Global Patent Index - EP 0851530 A3

EP 0851530 A3 2000-07-26 - Antenna apparatus in wireless terminals

Title (en)

Antenna apparatus in wireless terminals

Title (de)

Antenne in drahlosen Terminals

Title (fr)

Antenne dans terminaux sans fils

Publication

EP 0851530 A3 (EN)

Application

EP 97309712 A

Priority

US 78197096 A

Abstract (en)

[origin: EP0851530A2] A wireless terminal comprising a housing (102) that comprises an enclosed conductive element (200) that contains a radio has one or more openings (120) is used to provide both electromagnetic shielding and an integrated antenna. The openings (120) are excited to resonate, thereby forming a slot antenna for the radio Multiple openings can be used to provide antenna diversity. <IMAGE>

IPC 1-7 (main, further and additional classification)

H01Q 1/24; H01Q 1/52; H01Q 13/10

IPC 8 full level (invention and additional information)

H01Q 1/24 (2006.01); H01Q 1/52 (2006.01); H01Q 13/10 (2006.01); H04B 1/38 (2006.01)

CPC (invention and additional information)

H01Q 1/243 (2013.01); H01Q 1/526 (2013.01); H01Q 13/10 (2013.01)

Citation (search report)

  • [XY] US 4975711 A 19901204 - LEE KANG-HOON [KR]
  • [X] EP 0669672 A1 19950830 - ASCOM BUSINESS SYSTEMS AG [CH]
  • [X] US 4410890 A 19831018 - DAVIS STEVAN A [US], et al
  • [X] PATENT ABSTRACTS OF JAPAN vol. 011, no. 212 (E - 522) 9 July 1987 (1987-07-09)
  • [X] IK GUEN CHOI ET AL: "UHF TAPERED BENT-SLOT ANTENNA FOR SMALL SIZE PORTABLE PHONE", PROCEEDINGS OF THE VEHICULAR TECHNOLOGY SOCIETY CONFERENCE (VTSC),US,NEW YORK, IEEE, vol. CONF. 42, 1992, pages 9 - 12, XP000339671, ISBN: 0-7803-0673-2
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30)
  • [DA] KUBOYAMA H. ; FUJIMOTO K. ; HIRASAWA K.: "UHF BENT-SLOT ANTENNA SYSTEM FOR PORTABLE EQUIPMENT. I", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol. vt36, no. 2, 1987, USA, pages 78 - 85, XP000907067

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0851530 A2 19980701; EP 0851530 A3 20000726; JP H10200439 A 19980731

INPADOC legal status


2003-04-09 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020921

2002-08-01 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-06-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020510

2001-04-04 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: FI SE

2001-03-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010110

2000-07-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-07-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

1998-07-01 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): FI SE

1998-07-01 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI