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1. WO1996002953 - FEED MOVEMENT MECHANISM AND CONTROL SYSTEM FOR A MULTIBEAM ANTENNA

Publication Number WO/1996/002953
Publication Date 01.02.1996
International Application No. PCT/AU1995/000441
International Filing Date 20.07.1995
Chapter 2 Demand Filed 05.02.1996
IPC
H01Q 3/18 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
12using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
16for varying relative position of primary active element and a reflecting device
18wherein the primary active element is movable and the reflecting device is fixed
H01Q 5/45 2015.01
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
40Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
45using two or more feeds in association with a common reflecting, diffracting or refracting device
CPC
H01Q 3/18
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
12using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
16for varying relative position of primary active element and a reflecting device
18wherein the primary active element is movable and the reflecting device is fixed
H01Q 5/45
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
40Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
45using two or more feeds in association with a common reflecting, diffracting or refracting device
Applicants
  • COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION [AU]/[AU] (AllExceptUS)
  • BIRD, Trevor, Stanley [AU]/[AU] (UsOnly)
  • SPREY, Mark, Andrew [AU]/[AU] (UsOnly)
  • MCINNES, Ian, James [AU]/[AU] (UsOnly)
  • HANCOCK, Warren, James [AU]/[AU] (UsOnly)
  • WILSON, Stephen, Robert [AU]/[AU] (UsOnly)
Inventors
  • BIRD, Trevor, Stanley
  • SPREY, Mark, Andrew
  • MCINNES, Ian, James
  • HANCOCK, Warren, James
  • WILSON, Stephen, Robert
Agents
  • SPRUSON & FERGUSON
Priority Data
PM 695320.07.1994AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FEED MOVEMENT MECHANISM AND CONTROL SYSTEM FOR A MULTIBEAM ANTENNA
(FR) MECANISME DE DEPLACEMENT D'UNE SOURCE PRIMAIRE ET SYSTEME DE COMMANDE D'UNE ANTENNE A FAISCEAUX MULTIPLES
Abstract
(EN)
A feed transport device (27) for moving a feed (22) within a non-planar focal surface (26) defined by a satellite communications antenna (16), comprises first and second non-linear rails (28, 30), and a feed transport unit comprising a feed support member (40) for supporting the feed (22), and first and second slidable members (36, 38) slidably mounted on said first and second rails (28, 30) respectively to permit each slidable member (36, 38) to slide along the length of its respective rail (28, 30), wherein one end of the feed support member (40) is pivotally attached, not necessarily about a single pivot axis, to the first slidable member (36), the other end of the feed support member (40) is both slidably and pivotally, again not necessarily about a single axis, attached to the second slidable member (38), and the first and second rails (28, 30) are shaped and positioned to maintain the feed (22) in, or near to, said focal plane (26) during movement of the feed support member (40) along the first and second rails (28, 30). The feed support is provided with transverse sliding rail (64) and a gimbal (62) allows rotation about two perpendicular axes. The shape and position of the first and second rails (28, 30) and the orientation of the feed support member (40) are chosen so as to ensure that the minimum of adjustment of the feed (22) by the servos (76, 78 and 80) is required as the feed is moved along the length of the focal surface (26).
(FR)
Un dispositif de transport (27), permettant de déplacer une source primaire (22) dans une surface focale non planaire (26) définie par une antenne (16) de télécommunications par satellites, comprend des premier et second rails non linéaires (28, 30), et une unité de transport d'une source primaire comportant un élément support (40) supportant la source primaire (22), et des premier et second éléments (36, 38) pouvant coulisser montés coulissants respectivement sur des premier et second rails (28, 30) qui coulissent le long de leur rail respectif (28, 30). Une extrémité de l'élément de support (40) de la source primaire est fixée pivotante, mais pas nécessairement autour d'un axe pivot unique, au premier élément (36) pouvant coulisser; l'autre extrémité de l'élément de support (40) de ladite source primaire est fixée à la fois pivotante et coulissante, également pas nécessairement autour d'un axe unique, au second élément (38) pouvant coulisser, et les premier et second rails (28, 30) sont configurés et positionnés de façon à maintenir la source primaire (22) dans, ou proche de son point focal (26), lors du déplacement de l'élément de support (40) de ladite source primaire le long des premier et second rails (28, 30). Le support de la source primaire est pourvu d'un rail coulissant transversal (64) et un cardan (62) permet la rotation autour de deux axes perpendiculaires. La configuration et la position des premier et second rails (28, 30) ainsi que l'orientation de l'élément de support (40) de ladite source primaire sont sélectionnées de façon que les servocommandes (76, 78 et 80) n'aient à effectuer qu'un réglage minimum de la source primaire (22) lorsque celle-ci se déplace sur la longueur de la surface focale (26).
Also published as
US08786045
Latest bibliographic data on file with the International Bureau