Title (en)

ANTENNAS WITH REDUCED SPACE AND IMPROVED PERFORMANCE

Title (de)

ANTENNEN MIT VERRINGERTEM RAUM UND VERBESSERTER LEISTUNGSFÄHIGKEIT

Title (fr)

ANTENNES A ENCOMBREMENT REDUIT ET PERFORMANCE AMELIOREE

Publication

EP 1579529 A4 20070919 (EN)

Application

EP 03808509 A 20031217

Priority

• US 0340663 W 20031217
• US 32219602 A 20021217
• US 37542303 A 20030227
• US 64310203 A 20030818

Abstract (en)

[origin: WO2004057698A2] The disclosed embodiments of antenna elements and antenna element arrangements provide a generally low profile, improved isolation, and providing a larger bandwidth. Certain disclosed antenna elements provide a reduction in the footprint of the antenna elements while maintaining the performance characteristics by providing a greater surface area on either a top, middle or bottom portion of a CLMD antenna. Various resonant modes of a multiresonant antenna structure share at least portions of the structure volume. Other disclosed antenna element arrangements provide improved radiation efficiency by providing metallic reflectors on the sides of antenna elements. The isolation characteristics of certain disclosed antenna elements are improved through the use of coplanar wave guides. The bandwidth may be improved through the use of stubs resonators. The bandwidth of the antenna elements may be improved without reducing isolation or shielding by providing a variable gap between two portions of the antenna elements.

IPC 8 full level

H01Q 1/00 (2006.01); H01Q 1/22 (2006.01); H01Q 1/24 (2006.01); H01Q 1/36 (2006.01); H01Q 1/52 (2006.01); H01Q 5/00 (2006.01); H01Q 5/357 (2015.01); H01Q 9/04 (2006.01); H01Q 9/26 (2006.01); H01Q 9/42 (2006.01); H01Q 19/10 (2006.01); H01Q 21/24 (2006.01); H01Q 21/28 (2006.01)

CPC (source: EP)

H01Q 1/24 (2013.01); H01Q 1/36 (2013.01); H01Q 1/52 (2013.01); H01Q 1/521 (2013.01); H01Q 5/357 (2015.01); H01Q 9/0442 (2013.01); H01Q 9/265 (2013.01); H01Q 9/42 (2013.01); H01Q 19/10 (2013.01); H01Q 21/24 (2013.01); H01Q 21/28 (2013.01)

Citation (search report)

• [XY] JP H07303005 A 19951114 - NIPPON DENSO CO
• [X] US 5781158 A 19980714 - KO YOUNG HOEK [KR], et al
• [X] US 4218682 A 19800819 - YU I-PING [US]
• [X] JP 2000068736 A 20000303 - TOSHIBA CORP
• [Y] EP 1067627 A1 20010110 - BOSCH GMBH ROBERT [DE]
• [Y] EP 0884796 A2 19981216 - MATSUSHITA ELECTRIC IND CO LTD [JP]
• [Y] WO 9943043 A1 19990826 - ERICSSON GE MOBILE INC [US]
• [Y] US 6037905 A 20000314 - KOSCICA THOMAS E [US], et al
• [Y] WO 0235810 A1 20020502 - SIEMENS AG [DE], et al
• [Y] WO 9524746 A1 19950914 - CETELCO AS [DK], et al
• [Y] US 6424539 B1 20020723 - HWANG JENQ-YIH [US]
• [Y] US 4940992 A 19900710 - NGUYEN TUAN K [US], et al
• [Y] EP 1079463 A2 20010228 - RANGESTAR INTERNAT CORP [US]
• [Y] US 4389651 A 19830621 - TOMASKY PHILIP P [US]
• [Y] FU J S ET AL: "COMPOUND DIPOLE WITH H-PLANE PARASITIC POSTS FOR PHASED ARRAY WIDE-ANGLE WIDE-BAND SCANNING", RECORD OF THE 1999 IEEE RADAR CONFERENCE. WALTHAM, MA, APRIL 20 - 22, 1999, IEEE RADAR CONFERENCE, NEW YORK, NY : IEEE, US, 20 April 1999 (1999-04-20), pages 22 - 26, XP000895715, ISBN: 0-7803-4978-4
• See references of WO 2004057698A2

Citation (examination)

• US 6456243 B1 20020924 - POILASNE GREGORY [US], et al
• US 5966097 A 19991012 - FUKASAWA TORU [JP], et al
• WO 02078123 A1 20021003 - ERICSSON TELEFON AB L M [SE], et al
• EP 0938158 A2 19990825 - NOKIA MOBILE PHONES LTD [FI]
• US 2002089453 A1 20020711 - TSENG WEN-JEN [TW], et al
• EP 1024552 A2 20000802 - SIEMENS AG [DE]

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2004057698 A2 20040708; WO 2004057698 A3 20060629; WO 2004057698 A9 20040812; AU 2003303179 A1 20040714; AU 2003303179 A8 20040714; EP 1579529 A2 20050928; EP 1579529 A4 20070919

DOCDB simple family (application)

US 0340663 W 20031217; AU 2003303179 A 20031217; EP 03808509 A 20031217