WO2004025784A1 - Systeme d'antenne et son procede de fabrication - Google Patents

Systeme d'antenne et son procede de fabrication Download PDF

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Publication number
WO2004025784A1
WO2004025784A1 PCT/SE2003/001418 SE0301418W WO2004025784A1 WO 2004025784 A1 WO2004025784 A1 WO 2004025784A1 SE 0301418 W SE0301418 W SE 0301418W WO 2004025784 A1 WO2004025784 A1 WO 2004025784A1
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WO
WIPO (PCT)
Prior art keywords
reflector element
antenna system
reflector
antenna
ducts
Prior art date
Application number
PCT/SE2003/001418
Other languages
English (en)
Inventor
Torbjörn JOHNSON
Ola Holgersson
Original Assignee
Radio Components Sweden Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Radio Components Sweden Ab filed Critical Radio Components Sweden Ab
Priority to AU2003261699A priority Critical patent/AU2003261699A1/en
Publication of WO2004025784A1 publication Critical patent/WO2004025784A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole

Definitions

  • the present invention relates, according to a first aspect, to a double- polarized antenna system for transmitting and receiving electromagnetic signals. According to a second aspect, the present invention relates to a method for manufacturing an antenna system for transmitting and receiving electromagnetic signals.
  • the document US-6 069 590 discloses an antenna having feedback element for improving the insulation characteristic of the antenna by generating a feedback signal that works by erasing an undesired leakage signal coupling from an input port to an output port of the antenna system.
  • the shown antenna system is usable for wireless communication applications and comprises radiant elements that comprise two cross-connected dipole antennas, which are photo etched on a dielectric substrate in the form of a thin sheet of dielectric material.
  • Document EP-A2-1 098 391 discloses a folded dipole antenna for trans- mitting and receiving electromagnetic signals.
  • the antenna comprises a ground plane and a conductor that extends adjacent to the ground plane and is located at a distance therefrom with a first dielectric material.
  • the conductor comprises a transmission line stub having an open end, a radiator input section, at least one radiating section formed integrally with the radiator input section and a feed sec- tion.
  • the radiating section comprises first and second ends, a fed dipole and a passive dipole.
  • the fed dipole is connected to the radiator input section.
  • the passive dipole is arranged with a distance to the fed dipole in order to form a gap.
  • the passive dipole is short-circuited to the fed dipole at the first and second ends.
  • the conductor section may be connected to the ground plane by means of cold pressing.
  • the document US-5 818 397 discloses a circularly polarized antenna comprising a row of crossed dipoles and a single binary feed network.
  • Each pair of crossed dipoles has a first dipole comprising two downwardly bent radiant elements arranged at an angle in respect of the earth plate and has a second dipole comprising two straight radiant elements arranged in parallel with the earth plate.
  • the dipoles are mounted on a reflector panel by means of bolts or a similar technique.
  • the document US-6 072 439 discloses a base station antenna for double polarization.
  • the antenna system comprises a plurality of dipole elements, which protrude perpendicularly from a surface of a rear plane.
  • Each element comprises a balanced pair of dipoles, which form crossed dipole pairs.
  • the dipoles are fixed on the rear plane by means of screws or a similar technique.
  • the document US-6 034 649 discloses an improved antenna system for wireless telecommunication systems.
  • the antenna system comprises a plurality of zigzag dipole elements mounted on a mounting plate.
  • Each dipole is manufactured from, for instance, aluminium and comprises two half-dipoles.
  • the dipole elements are mounted on the mounting plate by means of a cold pressing process developed by Tox Pressotechnik GmbH.
  • a general problem of the antenna systems shown above is that they are constructed for providing good properties within one or a pair of fields. The total solution is frequently not so efficient.
  • an antenna system for transmitting and receiving electromagnetic signals.
  • the antenna system comprises an extruded elongated reflector element comprising a first solid side provided with a number of elongated cold pressing members.
  • the reflector element comprises furthermore a second solid side.
  • the reflector element comprises furthermore a number of ducts arranged in parallel with the longitudinal axis line of the reflector element, which ducts are arranged between said first and second sides.
  • the antenna system comprises furthermore a plurality of antenna elements, each antenna element comprising cold pressing members formed complementary to the cold pressing members of the reflector element for joining with reflector element.
  • the antenna system comprises furthermore a feed network arranged in said ducts for feeding said antenna system.
  • An advantage of the antenna system according to the present invention is that the same has a superior cost performance in comparison with other system solutions.
  • the antenna elements, which are included in the antenna system according to the present invention have advantages of broadband function, high aperture efficiency and low weight.
  • the feed network, which is included in the antenna system according to the present invention has such a design that it gives low losses.
  • the reflector elements, which are included in the antenna system according to the present invention ensure mechanical stiffness both vertically and horizontally. Said reflector elements also ensure that the antenna system becomes corrosion resistant by the fact that it is protected against rain, weather, wind and exhaust gases that hasten the oxidation of a reflector element manufactured from aluminium.
  • the feed network comprises first conducting, solid bars arranged in the ducts of the reflector element, in parallel with the longitudinal direction of the ducts, the first side of the reflector element being provided with a number of openings producing connection between adjacent ducts, the feed network furthermore comprising second conducting, solid bars arranged transversely to the longitudinal direction of the ducts for connection of two first conducting, solid bars in adjacent ducts, the feed network furthermore comprising third conducting, solid bars that are connected to the first conducting, solid bars and are arranged transversely to the first side of the reflector element and in a hollow, double-walled leg of said antenna elements for connection to said antenna elements.
  • said reflector element furthermore comprises fastening members arranged in parallel with the longitudinal axis line of the reflector element, adjacent to each short side of the reflector element for joining at least two reflector elements so that the first sides of the reflector element form a first plane and the second sides of the reflector element form a second plane, in parallel with the first plane.
  • each reflector element comprises a layer of ducts arranged between said first and second sides of the reflector element.
  • each reflector element consist of two score-provided projections facing each other at one short side of the reflector element, and of two grooves arranged in the first side and second side, respectively, of the reflector element at one short side of the reflector element, and of two grooves arranged in the first side and second side, respectively, of the reflector element at the second short side of the reflector element.
  • each antenna element comprises a pair of cross polarized dipoles having a first dipole having two hollow double-walled arms and a second dipole having two hollow double- walled arms.
  • each reflector element comprises four grooves arranged on said first side, and in that each dipole element consists of two mirror-inverted halves, each of which provided with two score-provided projections for cold pressing in said four grooves in such a way that the arms of the two halves point away from each other.
  • each antenna element comprises a vertically polarized dipole having two hollow double-walled arms.
  • each antenna element comprises a horizontally polarized dipole having two hollow double-walled arms.
  • each reflector element comprises substantially two layers of ducts arranged between said first and second sides of the reflector element.
  • each reflector element consist of two grooves facing away from each other at each short side of the reflector element as well as of joining element provided with two score-provided projections for cold pressing in the grooves arranged at the short sides for joining two reflector element in such a way that a first joining element is in the same plane as the first sides of the reflector elements and a second joining element is in the same plane as the second sides of the reflector elements.
  • each reflector element comprises four grooves arranged on said first side, and in that each dipole element consists of a part provided with two score-provided projections for cold pressing in two of said four grooves.
  • a method is pro- vided for manufacturing an antenna system for transmitting and receiving electromagnetic signals.
  • the method comprises the steps of:
  • At least one elongated reflector element comprising a first solid side provided with a number of elongated cold pressing members and a second solid side, which reflector element comprises a number of ducts arranged in par- allel with the longitudinal axis line of the reflector element and between said first and second sides;
  • each antenna element comprising cold pressing members formed complementary to the cold pressing members of the reflector element; - mounting a number of antenna elements on each reflector element by cold pressing together said cold pressing members according to a predetermined pattern;
  • An advantage of the antenna system according to the present invention is that the same has a superior cost performance in comparison with other system solutions.
  • the antenna elements that are included in the antenna system according to the present invention have advantages of broadband function, high aperture efficiency and low weight.
  • the feed network that is included in the antenna system according to the present invention has such a design that the same gives low losses.
  • the reflector elements that are included in the antenna system according to the pres??ent invention ensure mechanical stiffness both vertically and horizontally. Said reflector elements also ensure that the antenna system becomes corrosion resistant by the fact that the same is protected against rain, weather, wind and exhaust gases that hasten the oxidation of a reflector element manufactured from aluminium.
  • the feed network comprises first conducting, solid bars that are arranged in the ducts of the reflector element, in parallel with the longitudinal direction of the ducts, second conducting, solid bars arranged transversely to the longitudinal direction of the ducts for con- nection of two first conducting, solid bars in adjacent ducts, and third conducting, solid bars that are connected to the first conducting, solid bars and arranged transversely to the first side of the reflector element and in a hollow, double-walled legs of said antenna elements for connection to said antenna elements.
  • said reflector element furthermore comprises fastening members arranged in parallel with the longitudinal axis line of the reflector element, in connection with each of the short sides of the reflector element, which method furthermore comprises the step of:
  • each reflector element comprises a layer of ducts arranged between said first and second sides of the reflector element.
  • each reflector element consist of two score-provided projections fac- ing each other at one short side of the reflector element, and of two grooves arranged in the first side and second side, respectively, of the reflector element at one short side of the reflector element, and of two grooves arranged in the first side and second side, respectively, of the reflector element at the second short side of the reflector element.
  • each antenna element comprises a pair of cross polarized dipoles having a first dipole having two hollow double-walled arms and a second dipole having two hollow double- walled arms.
  • each reflector element comprises four grooves arranged on said first side, and in that each dipole element consists of two mirror-inverted halves, each of which provided with two score-provided projections, the step of mounting at least one dipole element being carried out in such a way that the arms of the two halves point away from each other.
  • each antenna element comprises a vertically polarized dipole having two hollow double-walled arms.
  • each antenna element comprises a horizontally polarized dipole having two hollow double-walled arms.
  • each reflector element comprises substantially two layers of ducts arranged between said first and second sides of the reflector element.
  • each reflector element consist of two grooves facing away from each other at each short side of the reflector element as well as of joining elements pro- vided with two score-provided projections for cold pressing in the grooves arranged at the short sides for joining two reflector elements in such a way that a first joining element is in the same plane as the first sides of the reflector elements and a second joining element is in the same plane as the second sides of the reflector elements.
  • each reflector element comprises four grooves arranged on said first side, and in that each dipole element consists of a part provided with two score-provided projections for cold pressing in two of said four grooves.
  • first and second conducting bars in the feed network are manufactured from aluminium, and the third conducting bars in the feed network are manufactured from brass.
  • Figure 1 shows a side view from above of a first embodiment of a double- polarized antenna system 10 according to the present invention
  • Figure 2 shows a side view, rotated 90° in relation to figure 1 , of the embodiment of the antenna system 10 shown in figure 1 according to the present invention
  • Figure 3 shows a cross-section view of a first embodiment of a reflector element 12 included in the antenna system 10 shown in the figures 1 and 2;
  • Figure 4 shows a side view of a first embodiment of a dipole element 20 included in the antenna system 10 shown in the figures 1 and 2;
  • Figure 5 shows a view from above of the dipole element 20 shown in figure 4;
  • Figure 6 shows a cross-section view of the profile that is used for manufacturing the dipole element shown in the figures 4 and 5;
  • Figure 7 shows a side view from above of a second embodiment of a double-polarized antenna system 10' according to the present invention;
  • Figure 8 shows a side view, rotated 90° in relation to figure 7, of the embodiment of the antenna system 10' shown in figure 7 according to the present invention
  • Figure 9 shows a cross-section view of a second embodiment of a reflector element 12' included in the antenna system 10' shown in the figures 7 and 8;
  • Figure 10 shows a side view of a second embodiment of a dipole element 20' included in the antenna system 10' shown in the figures 7 and 8;
  • Figure 11 shows a view from above of the dipole element 20' shown in figure 10;
  • Figure 12 shows a cross-section view of the profile that is used for manufacturing the dipole element 20' shown in the figures 10 and 11 ;
  • Figure 13 shows an enlarged cross-section view of a score-provided projection 40; 40' of the profile shown in figure 12;
  • Figure 14 shows a perspective view of a vertically polarized dipole 50 included in the antenna system according to the present invention
  • Figure 15 shows a side view of the dipole 50 shown in figure 14;
  • Figure 16 shows a perspective view of a horizontally polarized dipole 60 included in the antenna system according to the present invention;
  • Figure 17 shows a side view of the dipole 60 shown in figure 16.
  • Figure 18 shows a flow chart of a method for manufacturing an antenna system according to the present invention.
  • FIG 1 a side view from above of a first embodiment of an antenna system 10 according to the present invention is shown.
  • FIG 2 a side view of the antenna system 10 shown in figure 1 is shown rotated 90°.
  • the shown antenna system 10 is intended to transmit and receive electromagnetic signals.
  • the antenna system 10 comprises an elongated reflector element 12 having a first side 14 provided with a number of, in this case four, grooves 16 arranged in parallel with the longitudinal axis line of the reflector element 12.
  • the reflector element 12 comprises furthermore a second side 18 (is not shown in figure 1) that is substantially plane and is parallel to the first side 14.
  • the antenna system 10 comprises furthermore a plurality of dipole elements 20, which are fixed on the reflector element 12 by means of cold pressing.
  • Each dipole element 20 comprises a pair of cross-polarized dipoles 20- ⁇ , 20 2 . As is seen in the figures 1 and 2, two rows of dipole elements 20 are mounted on the reflector element 12. In figure 1 , only six dipole elements 20 are shown.
  • the antenna system 10 comprises furthermore a feed network (not shown) of first conducting, solid bars 24 arranged in the ducts of the reflector element 12 (compare figure 3), in parallel with the longitudinal direction of the ducts.
  • the first side 14 of the reflector element 12 is provided with a number of openings 26, in this case oval, producing connection between adjacent ducts.
  • the feed network comprises furthermore second conducting, solid bars 28 arranged transversely to the longitudinal direction of the ducts for connection of two first conducting, solid bars 24 in adjacent ducts.
  • the feed network comprises furthermore third conducting, solid bars 30 that are connected to the first conduct- ing, solid bars 24 and are arranged transversely to the first side 14 of the reflector element 12 and in a hollow, double-walled leg (compare figures 4-6) of said first and second dipole 2d, 20 2 .
  • FIG 3 a cross-section view is shown of a first embodiment of a reflector element 12 included in the antenna system 10 shown in the figures 1 and 2.
  • the reflector element 12 shown in figure 3 comprises sixteen equally large ducts 32 arranged in two planes as well as a greater duct 34 arranged in the middle.
  • the reflector element 12 com- prises furthermore four fastening members 36, here in the form of grooves 36, for joining a plurality of reflector elements 12 for forming a reflector panel.
  • the grooves 36 are parallel to the longitudinal axis line of the reflector element 12 in connection with each short side 38 of the reflector element 12. Furthermore, for joining of two reflector elements 12, there is a joining element (not shown) pro- vided with two score-provided projections for cold pressing in the grooves 36. The joining is effected in such a way that a first joining element is in the same plane as the first sides 14 of the reflector elements 12 and a second joining element is in the same plane as the second sides 18 of the reflector elements 12.
  • each dipole element 20 comprises a first dipole 20 ⁇ having two hollow, double- walled, downwardly bent arms (compare figures 4 and 6) arranged at a first angle in respect of the first side 14 of the reflector element 12 (compare, for instance, figure 1).
  • each dipole element 20 comprises a second dipole 20 2 having two hollow, double-walled, downwardly bent arms (compare figures 4 and 6) arranged at a second angle in respect of the first side 14 of the reflector ele- ment 12 (compare, for instance, figure 1 ). In the embodiment illustrated, the first and the second angle are equally large.
  • Each dipole element 20 comprises furthermore two parallel, elongated fastening members 40 in the form of score-provided projections 40 (compare figure 6) for cold pressing in the groove 16 of the reflector element 12.
  • Each dipole element 20 comprises furthermore four hollow, double-walled legs 42 ⁇ , 42 2 wherein the third conducting, solid bars 30 (compare figure 1) of the feed network are arranged.
  • the profile shown in figure 6 is manufactured, for instance, from extruded aluminium.
  • the shown dipole element 20 is milled out from the profile shown in figure 6.
  • FIG 7 a side view from above is shown of a second embodiment of a double-polarized antenna system 10' according to the present invention.
  • the antenna system 10' comprises an elongated reflector element 12' having a first side 14' provided with a number of, in this case four, grooves 16' arranged in parallel with the longitudinal axis line of the reflector element 12'.
  • the reflector element 12' comprises a second side 18' (is not shown in figure 7) that is substantially plane and is parallel to the first side 14'.
  • the antenna system 10' comprises furthermore a plurality of dipole elements 20', which are fixed on the reflector element 12' by means of cold pressing. At the cold pressing, the two metal pieces are plasticized and they receive metallic bindings. Because the metal pieces now hold together as a metallic unit, good conducting properties are guaranteed and no unnecessary losses are obtained.
  • each dipole element 20' consists of two mirror-inverted halves and is mounted on the reflector element 12' in such a way that the arms of the two halves point away from each other. The two halves constitute two cross-polarized dipoles 20-T, 20 2 '. Further- more, the antenna system 10' comprises a feed network (not shown) similar to the one described in connection with figure 1.
  • FIG 8 a side view of the antenna system 10' shown in figure 7 is shown rotated 90°.
  • FIG 9 a cross-section view is shown of a second embodiment of a reflector element 12' included in the antenna system 10' shown in the figures 7 and 8. Also this reflector element 12' has a first side 14' and a second side 18'. In this figure is clearly seen how the grooves 16' arranged on the first side 14' of the reflector element 12' look. As is seen in the figure, the four grooves 16' are arranged in the middle of the reflector element 12'.
  • the reflector element 12' shown in figure 9 comprises eight ducts 32', which are approximately equally large, as well as a smaller duct in the middle. All the ducts 32' are arranged in only one plane.
  • the reflector element 12' comprises recesses 52' arranged at the short sides of the reflector element 12'.
  • the reflector element 12' comprises furthermore mounting members 54' intended for mounting of electronics. When two reflector elements 12' of this type are to be mounted together the score-provided joining members (not shown) are cold pressed in the recesses 52'.
  • each dipole element 20' comprises two mirror- inverted halves, each having two hollow, double-walled, downwardly bent arms. Furthermore, each half comprises two parallel, elongated fastening members 40' in the form of score-provided projections 40' (compare figure 12) for cold pressing in the grooves 16' of the reflector element 12'.
  • the two halves constitute two cross-polarized dipoles 20 ⁇ ', 20 2 ', where each half contributes to the two dipoles 20-T, 20 2 '.
  • Each half 20-T, 20 2 ' comprises furthermore two hollow, double-walled legs 42-T, 42 2 ' wherein the third conducting, solid bars of the feed network are arranged.
  • a cross-section view is shown of the profile, which is used for manufacturing the dipole element 20' shown in the figures 10 and 11. Said profile is just "half in relation to the profile shown in figure 6.
  • This means that a complete dipole element 20' consists of two mirror-inverted halves, placed with the legs facing each other.
  • Each half of the dipole element 20' comprises furthermore two par- allel, elongated fastening members 40' in the form of score-provided projections 40' (compare figure 13) for cold pressing in the grooves 16' of the reflector element 12'.
  • FIG 13 an enlarged cross-section view is shown of a score-provided projection 40, 40'.
  • the score-provided projection 40, 40' has a maximum width b, which is greater than the width of the grooves 16, 16'.
  • a perspective view is shown of a vertically polarized dipole 50, which may be the antenna element included in the antenna system according to the present invention.
  • the dipole 50 comprises two arms 52 as well as two hollow, double-walled legs 54. As is seen, the legs 54 and the arms 52 are arranged in the same plane.
  • the dipole 50 comprises furthermore two score-provided projections 56.
  • FIG 15 a side view is shown of the dipole 50 shown in figure 14. As is seen in this figure, the arms 52 have a circular cross-section.
  • figure 16 a perspective view is shown of a horizontally polarized dipole
  • the dipole 60 comprises two arms 62 as well as two hollow, double-walled legs 64.
  • the dipole 60 comprises furthermore two score-provided projections 66.
  • a side view is shown of the dipole 60 shown in figure 16.
  • a flow chart is shown of a method for manufacturing an antenna system 10, 10' according to the present invention.
  • the method for manufacturing a double-polarized antenna system 10, 10' for transmitting and receiving electromagnetic signals begins at the block 100.
  • the method then continues at the block 102 with the step of extruding at least one elongated reflector element comprising a first side provided with a number of grooves arranged in parallel with the longitudinal axis line of the reflector element, and a second side that is substantially plane and parallel to the first side, which reflector element comprises a number of ducts, arranged in parallel with the longitudinal axis line of the reflector element, which ducts are arranged between said first and second sides.
  • the method continues at the block 104 with the step of, by means of drilling and/or milling, providing mounting and lead-through holes on the first side of the reflector element.
  • each antenna element may comprise a pair of cross polarized dipoles having a first dipole having two hollow, double-walled, downwardly bent arms arranged at a first angle in respect of a hollow, double-walled legs of the first dipole and having a second dipole having two hollow, double-walled, downwardly bent arms arranged at a second angle in respect of a hollow, double-walled legs of the second dipole, each dipole element comprising at least two parallel elongated fastening members in the form of score-provided projections.
  • the method then continues at the block 110 with the step of mounting a number of dipole elements on each reflector element by the score-provided projections of each dipole elements being cold pressed in the grooves of the reflector element according to a predetermined pattern. Then, the method continues at the block 112 with the step of mounting a feed network in the antenna system, which feed network comprises first conducting, solid bars that are arranged in the ducts of the reflector element, in parallel with the longitudinal direction of the ducts, second conducting, solid bars arranged transversely to the longitudinal direction of the ducts for connection of two first conducting, solid bars in adjacent ducts, and third conducting, solid bars that are connected to the first conducting, solid bars and are arranged transversely to the first side of the reflector element and in the legs of said first and second dipole for connection to said first and second dipole.
  • feed network comprises first conducting, solid bars that are arranged in the ducts of the reflector element, in parallel with the longitudinal direction of the ducts, second conducting, solid bars arranged transversely
  • a reflector element When a reflector element is assembled having dipole elements and feed network, the same may be joined abreast with a plurality of other assembled elements.
  • the method that is used is also here cold pressing in order to have a guaranteed good contact between the reflector elements and in order to spare unnecessary screw joints.
  • the modular way of construction enables varying both the height and the width, i.e. the number of dipole elements vertically and the number of dipole columns abreast. By varying height and width, different vertical and horizontal aperture angle on the lobe is obtained. Thus, it becomes easy to manufacture antennas having different characteristics.
  • the invention is not limited to the above-described embodiments. It is evident that many feasible modifications are possible within the extent of the following claims.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

L'invention concerne, de façon générale, un procédé servant à fabriquer un système d'antenne d'émission et de réception de signaux électromagnétiques. Ce procédé consiste à : extruder au moins un élément réfléchissant allongé comprenant un premier côté solide pourvu de plusieurs éléments allongés emboutis à froid, et un deuxième côté solide, cet élément réfléchissant présentant plusieurs conduits parallèles à l'axe de la longueur dudit élément et s'étendant entre lesdits premier et deuxième côté (102) ; pratiquer des orifices de montage et de passage sur le premier côté de l'élément réfléchissant (104) par perçage et/ou fraisage ; extruder un profil d'élément d'antenne (106) ; usiner ce profil au moyen d'une fraise, de manière à obtenir en pluralité d'éléments d'antenne, dont chacun est composé d'éléments emboutis à froid (108) complémentaire aux éléments emboutis à froid de l'élément réfléchissant ; monter plusieurs éléments d'antenne sur chaque élément réfléchissant par emboutissage à froid desdits éléments emboutis à froid selon une configuration prédéterminée (110) et monter un réseau d'alimentation dans lesdits conduits afin d'effectuer l'alimentation dudit système d'antenne (112).
PCT/SE2003/001418 2002-09-12 2003-09-11 Systeme d'antenne et son procede de fabrication WO2004025784A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003261699A AU2003261699A1 (en) 2002-09-12 2003-09-11 An antenna system, as well as a method for manufacturing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0202738A SE525591C2 (sv) 2002-09-12 2002-09-12 Ett antennsystem samt ett förfarande för att tillverka detsamma
SE0202738-1 2002-09-12

Publications (1)

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WO2004025784A1 true WO2004025784A1 (fr) 2004-03-25

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SE (1) SE525591C2 (fr)
WO (1) WO2004025784A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073266A1 (fr) * 2005-12-23 2007-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Antenne reseau a balayage perfectionne
EP2272131A1 (fr) * 2008-04-25 2011-01-12 SPX Corporation Panneau d' antenne réseau à commande de phase pour un système de diffusion superéconomique
CN104995792A (zh) * 2013-01-31 2015-10-21 赛尔麦克斯科技公司 一种天线装置以及基站

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1485419A (en) * 1973-09-05 1977-09-14 Merkur Gmbh Metallwerk Cold pressure welding process panel produced by this process and panel part for use in cold pressure welding
US5724051A (en) * 1995-12-19 1998-03-03 Allen Telecom Inc. Antenna assembly
US6034649A (en) * 1998-10-14 2000-03-07 Andrew Corporation Dual polarized based station antenna
US6057804A (en) * 1997-10-10 2000-05-02 Tx Rx Systems Inc. Parallel fed collinear antenna array
WO2000076024A1 (fr) * 1999-06-09 2000-12-14 Libertel Netwerk B.V. Module d'antenne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1485419A (en) * 1973-09-05 1977-09-14 Merkur Gmbh Metallwerk Cold pressure welding process panel produced by this process and panel part for use in cold pressure welding
US5724051A (en) * 1995-12-19 1998-03-03 Allen Telecom Inc. Antenna assembly
US6057804A (en) * 1997-10-10 2000-05-02 Tx Rx Systems Inc. Parallel fed collinear antenna array
US6034649A (en) * 1998-10-14 2000-03-07 Andrew Corporation Dual polarized based station antenna
WO2000076024A1 (fr) * 1999-06-09 2000-12-14 Libertel Netwerk B.V. Module d'antenne

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073266A1 (fr) * 2005-12-23 2007-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Antenne reseau a balayage perfectionne
EP2272131A1 (fr) * 2008-04-25 2011-01-12 SPX Corporation Panneau d' antenne réseau à commande de phase pour un système de diffusion superéconomique
EP2272131A4 (fr) * 2008-04-25 2012-03-07 Spx Corp Panneau d' antenne réseau à commande de phase pour un système de diffusion superéconomique
CN104995792A (zh) * 2013-01-31 2015-10-21 赛尔麦克斯科技公司 一种天线装置以及基站
EP2951880A4 (fr) * 2013-01-31 2016-07-06 Cellmax Technologies Ab Agencement d'antennes et station de base

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SE0202738L (sv) 2004-03-13
SE0202738D0 (sv) 2002-09-12
SE525591C2 (sv) 2005-03-15
AU2003261699A1 (en) 2004-04-30

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