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1. WO2006045769 - MULTIBAND PRINTED HELICAL SLOT ANTENNA

Publication Number WO/2006/045769
Publication Date 04.05.2006
International Application No. PCT/EP2005/055489
International Filing Date 24.10.2005
Chapter 2 Demand Filed 20.06.2006
IPC
H01Q 11/08 2006.1
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 5/00 2006.1
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
  • UNIVERSITE DE RENNES 1 [FR]/[FR] (AllExceptUS)
  • SHARAIHA, Ala [FR]/[FR] (UsOnly)
  • LETESTU, Yoann [FR]/[FR] (UsOnly)
Inventors
  • SHARAIHA, Ala
  • LETESTU, Yoann
Agents
  • BIORET, Ludovic
Priority Data
041137325.10.2004FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(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.
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