Processing

Please wait...

Settings

Settings

Goto Application

1. EP1805848 - MULTIBAND PRINTED HELICAL SLOT ANTENNA

Office
European Patent Office
Application Number 05801356
Application Date 24.10.2005
Publication Number 1805848
Publication Date 11.07.2007
Publication Kind B1
IPC
H01Q 11/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
11Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
02Non-resonant antennas, e.g. travelling-wave antenna
08Helical antennas
H01Q 1/36
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
36Structural form of radiating elements, e.g. cone, spiral, umbrella
H01Q 5/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
5Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
CPC
H01Q 1/362
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
1Details of, or arrangements associated with, antennas
36Structural form of radiating elements, e.g. cone, spiral, umbrella; ; Particular materials used therewith
362for broadside radiating helical antennas
H01Q 11/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
11Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
02Non-resonant antennas, e.g. travelling-wave antenna
08Helical antennas
Applicants UNIVERSITÉ DE RENNES 1
Inventors SHARAIHA ALA
LETESTU YOANN
Designated States
Priority Data 0411373 25.10.2004 FR
Title
(DE) MEHRBANDIGE BEDRUCKTE HELIXFĂ–RMIGE SCHLITZANTENNE
(EN) MULTIBAND PRINTED HELICAL SLOT ANTENNA
(FR) ANTENNE HELICE IMPRIMEE MULTIBANDE A FENTE
Abstract
(EN) The invention relates to a helical antenna comprising at least one helix which is formed by at least two radiating conductive strands (201,202), wherein at least one of said conductive strands (201,202) extends into at least two sub-strands (24) which are separated by a slot (22) with a pre-determined height (23) and width. According to the invention, the aforementioned slot (22) is connected at at least one point to a current antinode (30) such as to authorise the multiband operation of the antenna.
(FR) Antenne hélicoïdale comprenant ou moins une hélice formée d'au moins deux brins conducteurs (201,202) rayonnants, au moins un desdits brins conducteurs (201,202) se prolongeant en au moins deux sous-brins (24) séparés d'une fente (22) de hauteur (23) et de largeur prédéterminées, ladite fente (22) étant reliée en au moins un point à un ventre de courant (30), de façon à autoriser un fonctionnement multibande de ladite antenne.
Related patent documents