EP 0938158 A3 20001102 - Antenna
Title (en)
Antenna
Title (de)
Antenne
Title (fr)
Antenne
Publication
Application
Priority
- FI 980392 A 19980220
- US 25215999 A 19990218
Abstract (en)
[origin: EP0938158A2] The invention comprises an antenna structure particularly suited for mobile stations. The antenna comprises a radiating element (100) which is of a conductor form. The antenna conductor comprises a basic conductor and as an extension to this a conductor (115, 116) which at least partly is located relatively close to the basic conductor. As the conductors are close to each other that causes an electromagnetic coupling, which again causes a second resonance frequency for the antenna. The bandwidth of the antenna can be widened when the second resonance frequency is arranged close to the first one. The antenna can be made as a two-band antenna when the second resonance frequency is arranged relatively far from the first one. The bands can be made relatively wide, so that the antenna operates satisfactorily in different positions and in the neighbourhood of objects. It can be fastened to the back wall of a mobile station, whereby the distance to the user's head is made as large as possible. <IMAGE> <IMAGE>
IPC 1-7
H01Q 9/42; H01Q 5/00; H01Q 1/36; H01Q 1/24; H01Q 11/04; H01Q 11/14
IPC 8 full level
H01Q 1/24 (2006.01); H01Q 1/36 (2006.01); H01Q 5/00 (2006.01); H01Q 5/357 (2015.01); H01Q 9/42 (2006.01); H01Q 11/04 (2006.01); H01Q 11/14 (2006.01)
CPC (source: EP)
H01Q 1/242 (2013.01); H01Q 1/243 (2013.01); H01Q 1/36 (2013.01); H01Q 5/357 (2015.01); H01Q 9/42 (2013.01); H01Q 11/04 (2013.01); H01Q 11/14 (2013.01)
Citation (search report)
- [X] US 5363114 A 19941108 - SHOEMAKER KEVIN O [US]
- [X] US 2647211 A 19530728 - SMEBY LYNNE C
- [X] EP 0814536 A2 19971229 - YOKOWO SEISAKUSHO KK [JP]
- [A] US 5526007 A 19960611 - MURAKAMI YUICHI [JP], et al
- [A] US 5289198 A 19940222 - ALTSHULER EDWARD E [US]
- [X] PATENT ABSTRACTS OF JAPAN vol. 017, no. 264 (E - 1370) 24 May 1993 (1993-05-24)
- [A] ROEDERER A G: "THE CROSS ANTENNA: A NEW LOW-PROFILE CIRCULARLY POLARIZED RADIATOR", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,US,IEEE INC. NEW YORK, vol. 38, no. 5, 1 May 1990 (1990-05-01), pages 704 - 710, XP000135617, ISSN: 0018-926X
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 0938158 A2 19990825; EP 0938158 A3 20001102; FI 980392 A0 19980220; FI 980392 A 19990821
DOCDB simple family (application)
EP 99660027 A 19990217; FI 980392 A 19980220