EP2664030B1 - Printed slot-type directional antenna, and system comprising an array of a plurality of printed slot-type directional antennas - Google Patents
Printed slot-type directional antenna, and system comprising an array of a plurality of printed slot-type directional antennas Download PDFInfo
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- EP2664030B1 EP2664030B1 EP11802519.6A EP11802519A EP2664030B1 EP 2664030 B1 EP2664030 B1 EP 2664030B1 EP 11802519 A EP11802519 A EP 11802519A EP 2664030 B1 EP2664030 B1 EP 2664030B1
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- Prior art keywords
- substrate
- substrates
- antenna
- slot
- antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
- H01Q13/085—Slot-line radiating ends
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
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- 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
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
Definitions
- the present invention relates to slot type printed directional antennas, in particular Vivaldi type antennas. They also relate to different systems that network said slot-type printed antennas so as to produce compact multibeam antenna systems that may also have orthogonal double polarization.
- MIMO multiple input multiple output in English
- RF radio frequency
- the use of directional antennas by rejecting the interference upstream of the reception chain, makes it possible in a MIMO system to reduce the complexity related to the management of the nonlinearities, the noise and the dynamics of the radio channel. frequency.
- a solution based on directional antennas also makes it possible to simplify the processing of the digital signal, in particular the additional processing related to the cancellation of the signals interfering in the case of a MIMO solution using non-directive antennas.
- the directional antennas are generally cumbersome and the networking of several directional antennas greatly increases this problem.
- the printed guideline antennas are known flared slot type antennas such as Vivaldi type antennas.
- Antennas of this type have the advantage of great flexibility in terms of directivity value. Indeed this value is fixed by the length of the profile and the width of the mouth.
- these antennas also have great flexibility as regards the shape of the radiation pattern, the openings in the planes E and H can be adjusted by adjusting the shape and length of the profile and the opening of the mouth.
- these antennas have a natural linear polarization, the direction of polarization being given by the plane of the substrate on which the antenna is etched.
- the present invention therefore seeks to reduce the size and volume of the systems described above by a factor of about two.
- the subject of the present invention is a printed directional antenna of the flared slot type comprising a substrate provided with a ground plane in which the slot is etched in a profile having a longitudinal axis and a line for feeding the slot, in wherein the substrate comprises at least first and second portions bent along an axis parallel and non-collinear with said axis and forming an angle A with respect to each other, a first portion of the profile of the slot being etched in the first portion of the substrate and a second portion of the slot profile being etched in the second portion of the substrate.
- the angle is 90 °, that is, the two substrate portions are perpendicular to each other.
- the ground plane is formed on a lower or outer face of said first and second parts of the substrate.
- the present invention also relates to a printed slot-like printed directional antenna system comprising a first substrate and N second substrates, the N second substrates forming an angle A with respect to the first substrate, the first and the N second substrates delimiting N sectors, in which, in at least one of the sectors, is realized a directional antenna as described above, the first portion being formed by the first substrate and the second portion being formed by one of the second substrates.
- the present invention also relates to a flared slot type printed directional antenna system comprising a first substrate, a third substrate and N second substrates, the N second substrates forming an angle A with respect to the first substrate and an angle B with respect to the third substrate, the first substrate, the third substrate and the N second substrates delimiting N sectors, wherein, in at least one of even or odd-rank sectors, a directional antenna as described above is formed, the first part being formed by the first substrate and the second part being formed by one of the second substrates and in at least one of odd or even rank sectors is formed a directional antenna as described above the first part being formed by the third substrate and the second part being formed by one of the second substrates.
- angles A and B are equal to 90 ° so that the first and third substrates are perpendicular to the N second substrates.
- the invention relates to a flared slot type printed directional antenna system
- a flared slot type printed directional antenna system comprising a first substrate, a third substrate, the first and third substrates being of polygonal shape, and N second substrates, N corresponding to the number sides of the polygon, the N second substrates connecting the first substrate to the third substrate, wherein, at at least one of the connections between the first substrate or the third substrate and one of the second substrates, a directional antenna such as described above.
- FIG. 1 a particular embodiment of a flared slot type directional printed antenna according to the present invention.
- the slot antenna described in this embodiment is a Vivaldi type antenna.
- the present invention can be applied to other types of flared slot antennas known as "tapered slot antennas" in the English language.
- the antenna according to the present invention comprises a substrate-forming element consisting of a first substrate part 1 and a second substrate part 2 which, in the embodiment shown, are arranged perpendicularly to each other. other. More generally, the two parts 1 and 2 of the substrate can be folded along an axis OY and form between them an angle A different from 90 °. In general, the two substrate parts are formed by independent substrates and in the description of the substrate part or substrate have the same meaning.
- an excitation micro-ribbon line 3 which is extended by a first part of the adaptation line 4a allowing the slot antenna to be powered by coupling electromagnetic, especially according to the Knorr principle.
- a ground plane 5 On the underside of the first portion 1 of the substrate is a ground plane 5 in which is etched a portion 6 of the profile of the slot antenna.
- the second part 8 of the profile of the antenna On the rear face of the second part 2 of the substrate is etched in the ground plane 7 the second part 8 of the profile of the antenna which is extended by a slot 9 ending in a short circuit 10.
- the Vivaldi slot antenna is powered by electromagnetic coupling according to Knorr's known principle.
- the rear face 5 of the first substrate portion 1 and the rear face 7 of the second substrate portion 2 are electrically connected.
- the folding line OY between the first part 1 of the substrate and the second part 2 of the substrate is not made along the axis ss' of the slot 9 of the antenna Vivaldi but parallel and close to said axis.
- a slot-type planar antenna in particular a Vivaldi antenna, naturally has a linear polarization, the direction of the polarization being given by the antenna plane. So according to this new concept where the antenna is folded in two planes, usually orthogonal as represented in the figure 1 this results in an oblique polarization at approximately 45 ° approximately along a plane connecting the two ends of the mouth of the antenna and collinear with the axis Y, longitudinal axis of symmetry.
- this system comprises a first horizontal substrate 10 and two second vertical substrates 11a and 11b, interconnected along a common axis OZ and forming an angle C between them of 45 °.
- ground planes 12a and 12b are formed on the outer surfaces of the substrates 11a and 11b in which a first portion of the Vivaldi antenna is etched as shown in FIG. figure 1 .
- the second part of the Vivaldi type antenna is etched on the ground plane made on the underside of the first horizontal substrate 10 in the sector 10a.
- each antenna has a polarization in a different sense.
- One of the antennas has a horizontal profile on the right with respect to the vertical substrate 11a and the other antenna has a horizontal profile on the left with respect to the vertical substrate 11b. This results in an orthogonality of the polarizations, which allows a better decorrelation of the antennas.
- FIG. figure 1 another embodiment of a system comprising four Vivaldi type antennas as represented in FIG. figure 1 .
- the system comprises a first horizontal substrate 20 on which are fixed perpendicularly four second substrates 21a, 21b, 21c, 21d interconnected along a common axis OZ. These four second substrates delimit four sectors 20a, 20b, 20c and 20d on the first substrate.
- antennas type Vivaldi folded, as in the embodiment of the figure 1 were performed on each second substrate (21a, 21b, 21c, 21d) and the horizontal substrate (20) as shown in FIG. figure 3 .
- the antennas are associated in pairs so that part of the antennas is etched in the sectors 20a and 20c of the first substrate as shown in FIG. Figure 4 (b) .
- the second antenna parts are etched on the surfaces of the second substrates external to these sectors, namely in the metallizations 22a, 22b, 22c, 22d made on the second substrates 21a, 21b, 21c, 21d.
- the supply lines 23a, 23b and the lines not shown for the sector 20c are formed on the inner faces of the sectors of the second substrates concerned.
- FIG. 5a and 5b another embodiment of an antenna system according to the present invention for obtaining better insulation between the antennas.
- a third substrate parallel to the first substrate is used. More specifically, on Figures 5a and 5b there is shown an antenna system with eight antennas comprising a first horizontal substrate 30 on which are mounted perpendicularly eight second substrates 31a, 31b, 31c, 31d, 31e, 31f, 31g, 31h interconnected along an axis OZ and a third horizontal substrate 32 parallel to the first substrate 30. This set determines eight sectors referenced a, b, c, d, e, f, g, h.
- the substrates 30 and 32 could be made without being parallel, the N second substrates making an angle A with respect to the first substrate 30 and an angle B with respect to the third substrate 32.
- Vivaldi printed directional antennas as shown in FIG. figure 1 were used. The antennas are respectively formed between the first substrate and one of the second substrates for the sectors of even rank, for example, and between the third substrate and one of the second substrates for odd-ranked sectors or vice versa.
- the printed directional antenna is made in the ground plane 33 of the third substrate 32 and in the ground plane 34 of the second substrate 31a and is fed by the feed line 35, whereas, as shown in FIG. figure 5a for the sector h delimited by the second substrates 31a and 31h, the printed directive antenna is etched in the ground plane 37 of the substrate 30 and in the ground plane 36 of the second substrate 31h and is fed by the line 38.
- the present invention makes it possible to obtain a multibeam antenna system that is much more compact in height than the systems of the prior art described in particular in the patents mentioned above.
- the arrangement of the antenna profiles is carried out so as to maintain the orthogonality of the polarizations of the antennas, the excitations of the antennas being on the same side of the vertical substrates as shown in the figures.
- the six-antenna system comprises a first substrate 40, six second substrates 41a, 41b, 41c, 41d, 41e, 41f and a third substrate 42, the substrates 40 and 42 being parallel to one another and the six second substrates being interconnected along an axis OZ and perpendicular to the first and third substrates.
- the six antennas are distributed alternately on the horizontal planes 40 and 42 and on the vertical planes around the OZ axis and the angular pitch between two vertical planes formed by the second substrates is 60 °. So more precise a Vivaldi antenna according to the present invention is therefore made in each odd sector using the first substrate 40 and for each even sector using the second substrate 42. There is therefore a first antenna etched in the ground plane 43.1 of the first substrate 40 and the ground plane 44.1 of the second substrate 41a and fed by the feed line 45.1.
- the second antenna is made by etching the ground plane 43.2 on the third substrate 42 and the ground plane 44.2 on the second substrate 41b and then alternatively for the ground plane 43.3 of the first substrate 40 and the ground plane 44.3 on the second substrate 41c, 43.4 of the third substrate 42 and the ground plane 44.4 on the second substrate 41d, 43.5 of the first substrate 40 and the ground plane 44.5 on the second substrate 41e and 43.6 of the third substrate 42 and the ground plane 44.6 on the second substrate 41f.
- all of the antennas are powered separately as represented by the supply lines 45.1, 45.2, 45.3, 45.4, 45.5, 45.6 on the Figure 7 .
- Substrates 40 and 42 are circular shaped substrates with a diameter of 88 millimeters and the six second substrates 41 a to 41f have a rectangular shape with a height of 22 millimeters and a width of 33 millimeters.
- the results of the electromagnetic simulations are represented on the Figures 8 to 11 .
- the figure 8 represents the adaptation and isolation curves. There is therefore an adaptation of more than 15 dB in the 802.11a WiFi band, namely the band between 5.15-5.85 GHz. There is also isolation between two contiguous antennas of more than 20 dB.
- the Figures 9 and 10 represent the gain and the directivity of the antennas respectively carried out on the first substrate 40 figure 9 or on the third substrate 42 figure 10 . The curves therefore show a directivity greater than 5 dBi and a gain greater than 4 dBi whatever the type antenna.
- the figure 11 represents the radiation pattern respectively of an antenna made with the first substrate and an antenna made with the third substrate, there is therefore a maximum of fields on two oblique planes oriented 45 ° with respect to the two planes of the antennas formed by first substrate 40 or third substrate 42.
- the first substrate 50 and the third substrate 52 parallel to the first substrate are both constituted by rectangles and the second substrates 51a, 51b, 51c, 51d form the faces of a rectangular parallelepiped.
- the edges of the parallelepiped are used. More precisely, a first antenna is produced by etching the ground plane 53 provided on the face 51a of one of the second substrates and the ground plane 54 provided on the first substrate 50, whereas a second antenna is made of etching the ground plane 53.2 provided on the upper part of the second substrate 51 a and the ground plane 54.2 provided on the third substrate 52.
- a set of two antennas of this type is produced on each second substrate 51 b, 51 c, 51 d as represented on the figure 12 , thus giving a four-sector antennal system and eight Vivaldi-type printed directive antennas, each pair of antennas in a given sector having orthogonal polarizations.
- the first portion of substrate or first substrate 60 has along the axis XX 'forming a fold, a number of holes 62 metallized.
- This portion of substrate 60 is provided in a known manner with a metallization 62 in which is formed the profile 63 of the Vivaldi type antenna part.
- a feed line 64 On the upper face of the portion 60 is also metallized a feed line 64 as described with reference to the figure 1 .
- the second substrate portion or second substrate 65 is provided with a number of metallized pins 66, the number and shape of the pins 66 corresponding to the number and shape of the holes 61. Moreover, on this second part 65 is made the other part of the profile of the Vivaldi type antenna etched in a metallization 67. The other face of the part 65 receives the extension of the feed line 64 as described with reference to the figure 1 . In this case, the folded antenna structure is easily obtained by inserting the portion 65 provided with pins 66 in the metallized holes 62 of the portion 60.
Description
La présente invention concerne les antennes directives imprimées de type fente, notamment les antennes de type Vivaldi. Elles concernent aussi différents systèmes mettant en réseau les dites antennes imprimées de type fente de manière à réaliser des systèmes d'antennes multifaisceaux compactes pouvant de plus présenter une double polarisation orthogonale.The present invention relates to slot type printed directional antennas, in particular Vivaldi type antennas. They also relate to different systems that network said slot-type printed antennas so as to produce compact multibeam antenna systems that may also have orthogonal double polarization.
Le développement croissant des systèmes de communication, notamment de communication sans fil, nécessite la mise en oeuvre de dispositifs de plus en plus complexes et performants tout en gardant des coûts de fabrication les plus bas possible et un encombrement minimal. Pour répondre à ces contraintes, on utilise de plus en plus la technologie MIMO (multiple input multiple output en langue anglaise) qui met en oeuvre un concept multi-antennes pour améliorer les performances de transmission tant en terme de débit que de robustesse, dans un environnement dominé, notamment par des interférences. Ces dispositifs de transmission multi-antennes de type MIMO ont entrainé le développement de solutions d'antennes directives. Les avantages de la directivité sont nombreux. En effet, ils permettent de réduire les interférences, d'améliorer la portée des liaisons sans fil, de réduire la puissance RF, à savoir la complexité et le coût liés à la dissipation. D'autre part les antennes directives permettent de réduire l'exposition moyenne au rayonnement électromagnétique.The increasing development of communication systems, including wireless communication, requires the implementation of increasingly complex and efficient devices while keeping manufacturing costs as low as possible and minimal bulk. To meet these constraints, MIMO (multiple input multiple output in English) technology is increasingly being used which implements a multi-antenna concept to improve transmission performance in terms of both throughput and robustness, in a dominated environment, including interference. These multi-antenna transmission devices of the MIMO type have led to the development of directional antenna solutions. The advantages of directivity are numerous. In fact, they reduce interference, improve the range of wireless links, reduce RF power, the complexity and cost of dissipation. On the other hand directive antennas can reduce the average exposure to electromagnetic radiation.
De plus, l'utilisation d'antennes directives, en rejetant les interférences en amont de la chaine de réception, permet dans un système MIMO de réduire la complexité liée à la gestion des non linéarités, au bruit et à la dynamique de la chaine radio fréquence. Une solution à base d'antennes directives permet aussi de simplifier le traitement du signal numérique notamment les traitements supplémentaires liés à l'annulation des signaux interférents dans le cas d'une solution MIMO utilisant des antennes non directives. Toutefois les antennes directives sont en général encombrantes et la mise en réseau de plusieurs antennes directives augmente fortement ce problème.In addition, the use of directional antennas, by rejecting the interference upstream of the reception chain, makes it possible in a MIMO system to reduce the complexity related to the management of the nonlinearities, the noise and the dynamics of the radio channel. frequency. A solution based on directional antennas also makes it possible to simplify the processing of the digital signal, in particular the additional processing related to the cancellation of the signals interfering in the case of a MIMO solution using non-directive antennas. However, the directional antennas are generally cumbersome and the networking of several directional antennas greatly increases this problem.
Parmi les antennes directives imprimées ont connait les antennes de type fente évasée telles que les antennes de type Vivaldi. Les antennes de ce type présentent l'avantage d'une grande flexibilité en termes de valeur de directivité. En effet cette valeur est fixée par la longueur du profil et la largeur de l'embouchure. D'autre part, ces antennes présentent aussi une grande flexibilité en ce qui concerne la forme du diagramme de rayonnement, les ouvertures dans les plans E et H pouvant être ajustées en jouant sur la forme et la longueur du profil ainsi que l'ouverture de l'embouchure. De plus, ces antennes présentent une polarisation naturelle linéaire, la direction de la polarisation étant donnée par le plan du substrat sur lequel est gravée l'antenne. Ainsi, l'on a déjà proposé dans différentes demandes de brevet d'utiliser la mise en réseau de N antennes de type Vivaldi pour obtenir des systèmes d'antennes multifaisceaux directifs.Among the printed guideline antennas are known flared slot type antennas such as Vivaldi type antennas. Antennas of this type have the advantage of great flexibility in terms of directivity value. Indeed this value is fixed by the length of the profile and the width of the mouth. On the other hand, these antennas also have great flexibility as regards the shape of the radiation pattern, the openings in the planes E and H can be adjusted by adjusting the shape and length of the profile and the opening of the mouth. In addition, these antennas have a natural linear polarization, the direction of polarization being given by the plane of the substrate on which the antenna is etched. Thus, it has already been proposed in various patent applications to use the networking of N Vivaldi type antennas to obtain directional multibeam antenna systems.
Dans la demande de brevet internationale n°
Il a été aussi proposé dans la demande de brevet Française n°
Toutefois, malgré cette optimisation spatiale, l'encombrement des systèmes d'antennes décrit ci-dessus reste relativement important. La présente invention cherche donc à réduire l'encombrement et le volume des systèmes décrits ci-dessus d'un facteur environ égal à deux.However, despite this spatial optimization, the congestion of the antenna systems described above remains relatively important. The present invention therefore seeks to reduce the size and volume of the systems described above by a factor of about two.
Ainsi, la présente invention a pour objet une antenne directive imprimée de type fente évasée comprenant un substrat muni d'un plan de masse dans lequel est gravée la fente selon un profil présentant un axe longitudinal et une ligne d'alimentation de la fente, dans laquelle le substrat comporte au moins une première et une deuxième parties pliées selon un axe parallèle et non colinéaire au dit axe et formant un angle A l'une par rapport à l'autre, une première partie du profil de la fente étant gravée dans la première partie du substrat et une deuxième partie du profil de la fente étant gravée dans la deuxième partie du substrat.Thus, the subject of the present invention is a printed directional antenna of the flared slot type comprising a substrate provided with a ground plane in which the slot is etched in a profile having a longitudinal axis and a line for feeding the slot, in wherein the substrate comprises at least first and second portions bent along an axis parallel and non-collinear with said axis and forming an angle A with respect to each other, a first portion of the profile of the slot being etched in the first portion of the substrate and a second portion of the slot profile being etched in the second portion of the substrate.
De préférence l'angle est un angle de 90°, à savoir les deux parties de substrat sont perpendiculaires l'une par rapport à l'autre.Preferably the angle is 90 °, that is, the two substrate portions are perpendicular to each other.
Selon une autre caractéristique de la présente invention le plan de masse est réalisé sur une face inférieure ou externe des dites première et deuxième parties du substrat.According to another characteristic of the present invention the ground plane is formed on a lower or outer face of said first and second parts of the substrate.
La présente invention concerne aussi un système d'antennes directives imprimées de type fente évasée comprenant un premier substrat et N second substrats, les N seconds substrats formant un angle A par rapport au premier substrat, le premier et les N seconds substrats délimitant N secteurs, dans lequel, dans au moins un des secteurs, est réalisée une antenne directive telle que décrite ci-dessus, la première partie étant formée par le premier substrat et la seconde partie étant formée par un des seconds substrats.The present invention also relates to a printed slot-like printed directional antenna system comprising a first substrate and N second substrates, the N second substrates forming an angle A with respect to the first substrate, the first and the N second substrates delimiting N sectors, in which, in at least one of the sectors, is realized a directional antenna as described above, the first portion being formed by the first substrate and the second portion being formed by one of the second substrates.
La présente invention concerne aussi un système d'antennes directives imprimées de type fente évasée comprenant un premier substrat, un troisième substrat et N seconds substrats, les N seconds substrats formant un angle A par rapport au premier substrat et un angle B par rapport au troisième substrat, le premier substrat, le troisième substrat et les N seconds substrats délimitant N secteurs, dans lequel, dans au moins un des secteurs de rang pair ou impair est réalisé une antenne directive telle que décrite ci-dessus, la première partie étant formée par le premier substrat et la seconde partie étant formée par un des seconds substrats et dans au moins un des secteurs de rang impair ou pair est réalisée une antenne directive telle que décrite ci-dessus la première partie étant formée par le troisième substrat et la seconde partie étant formée par un des seconds substrats.The present invention also relates to a flared slot type printed directional antenna system comprising a first substrate, a third substrate and N second substrates, the N second substrates forming an angle A with respect to the first substrate and an angle B with respect to the third substrate, the first substrate, the third substrate and the N second substrates delimiting N sectors, wherein, in at least one of even or odd-rank sectors, a directional antenna as described above is formed, the first part being formed by the first substrate and the second part being formed by one of the second substrates and in at least one of odd or even rank sectors is formed a directional antenna as described above the first part being formed by the third substrate and the second part being formed by one of the second substrates.
Selon un mode de réalisation préférentiel, les angles A et B sont égaux à 90° de telle sorte que les premier et troisième substrats sont perpendiculaires aux N seconds substrats.According to a preferred embodiment, the angles A and B are equal to 90 ° so that the first and third substrates are perpendicular to the N second substrates.
Selon un autre mode de réalisation, l'invention concerne un système d'antennes directives imprimées de type fente évasée comprenant un premier substrat, un troisième substrat, les premier et troisième substrats étant de forme polygonale, et N seconds substrats, N correspondant au nombre de cotés du polygone, les N seconds substrats connectant le premier substrat au troisième substrat, dans lequel, au niveau d'au moins une des connections entre le premier substrat ou le troisième substrat et un des seconds substrats, est réalisée une antenne directive telle que décrite ci-dessus.According to another embodiment, the invention relates to a flared slot type printed directional antenna system comprising a first substrate, a third substrate, the first and third substrates being of polygonal shape, and N second substrates, N corresponding to the number sides of the polygon, the N second substrates connecting the first substrate to the third substrate, wherein, at at least one of the connections between the first substrate or the third substrate and one of the second substrates, a directional antenna such as described above.
D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée faite ci-après de différents modes de réalisation, cette description étant faite avec référence aux dessins ci-annexés dans lesquels :
- La
figure 1 est une vue en perspective schématique d'une antenne imprimée conforme à la présente invention. - La
figure 2 est un plan de coupe donnant la polarisation du champ électrique selon la position du profil horizontal par rapport au profil vertical pour des antennes selon le principe de la présente invention. - La
figure 3 est une vue en perspective représentant un système à deux antennes telles que les antennes de lafigure 1 mises en réseau selon le principe de la présente invention. - Les
figures 4a et 4b sont respectivement une représentation en perspective d'un système à quatre antennes telles que les antennes représentées à lafigure 1 mises en réseau conformément à la présente invention et une vue en plan de dessus. - Les
figures 5a et 5b sont deux vues en perspective d'un système à huit antennes telles que les antennes représentées à lafigure 1 mises en réseau conformément à la présente invention, lafigure 5a étant une vue sur les antennes pliées sur le plan horizontal inférieur et lafigure 5b étant une vue sur les antennes pliées sur le plan horizontal supérieur. - La
figure 6 est une vue en perspective d'un système à six antennes conforme à la présente invention. - La
figure 7 est une vue de dessus du système d'antenne de lafigure 6 . - La
figure 8 représente des courbes donnant l'adaptation et l'isolation en fonction de la fréquence du système représenté auxfigures 6 et 7 . - Les
figures 9 et 10 représentent respectivement en fonction de la fréquence, le gain et la directivité des antennes réalisés sur le premier substrat ou sur le troisième substrat, pour le mode de réalisation desfigures 6 et 7 . - La
figure 11 représente le diagramme de rayonnement par rapport au plan supérieur et au plan inférieur pour le mode de réalisation desfigures 6 et 7 . - La
figure 12 représente un autre mode de réalisation d'un système à huit antennes disposées selon quatre secteurs. - La
Figure 13 représente schématiquement un mode de réalisation pratique de l'antenne de lafigure 1 .
- The
figure 1 is a schematic perspective view of a printed antenna according to the present invention. - The
figure 2 is a sectional plane giving the polarization of the electric field according to the position of the horizontal profile relative to the vertical profile for antennas according to the principle of the present invention. - The
figure 3 is a perspective view showing a system with two antennas such as the antennas of thefigure 1 networking according to the principle of the present invention. - The
Figures 4a and 4b are respectively a perspective representation of a system with four antennas such as the antennas represented in FIG.figure 1 networking in accordance with the present invention and a top plan view. - The
Figures 5a and 5b are two perspective views of an eight-antenna system such as the antennas represented infigure 1 networked in accordance with the present invention, thefigure 5a being a view on the antennas folded on the lower horizontal plane and thefigure 5b being a view of the antennas folded on the upper horizontal plane. - The
figure 6 is a perspective view of a six-antenna system according to the present invention. - The
figure 7 is a top view of the antenna system of thefigure 6 . - The
figure 8 represents curves giving adaptation and isolation as a function of the frequency of the system represented inFigures 6 and 7 . - The
Figures 9 and 10 respectively represent, as a function of frequency, the gain and directivity of the antennas made on the first substrate or on the third substrate, for the embodiment of theFigures 6 and 7 . - The
figure 11 represents the radiation pattern with respect to the upper plane and the lower plane for the embodiment of theFigures 6 and 7 . - The
figure 12 represents another embodiment of an eight-antenna system arranged in four sectors. - The
Figure 13 schematically represents a practical embodiment of the antenna of thefigure 1 .
Pour simplifier la description dans les figures relatives à un même mode de réalisation, les mêmes éléments portent les mêmes références.To simplify the description in the figures relating to the same embodiment, the same elements bear the same references.
On décrira tout d'abord avec référence à la
Comme représenté à la
Comme représenté sur la
Il est connu de l'homme de l'art qu'une antenne planaire de type fente notamment une antenne Vivaldi, présente naturellement une polarisation linéaire, la direction de la polarisation étant donnée par le plan d'antenne. Ainsi selon ce nouveau concept où l'antenne est pliée suivant deux plans, le plus souvent orthogonaux comme représentée à la
On décrira maintenant avec référence aux
Ainsi, sur la
On décrira maintenant avec référence aux
On décrira maintenant avec référence aux
On décrira maintenant, avec référence aux
Comme représenté sur la
Comme représenté clairement sur les
Le système décrit avec référence aux
Les résultats des simulations électromagnétiques sont représentés sur les
On décrira maintenant avec référence à la
Dans ce cas, le premier substrat 50 et le troisième substrat 52 parallèle au premier substrat sont tous deux constitués par des rectangles et les seconds substrats 51a, 51b, 51c, 51 d forment les faces d'un parallélépipède rectangle. Comme représenté sur la
On décrira maintenant succinctement avec référence à la
Claims (9)
- Printed directive tapered slot-type antenna comprising a substrate equipped with a ground plane in which is etched the slot according to a profile having a longitudinal axis (ss') and a feed line (3) for the slot, the substrate comprising at least first (1) and second (2) parts folded according to an axis (oy) parallel to and not collinear with said longitudinal axis and forming an angle A with respect to one another, characterised in that a first part (6) of the profile of the slot is etched in the first substrate part and a second part (8) of the profile of the slot is etched in the second part (2) of the substrate.
- Antenna according to claim 1, characterised in that the angle A is an angle of 90°.
- Antenna according to claim 1, characterised in that the feed line is a microstrip line realised on the face of the substrate opposite the face receiving the slot.
- Antenna according to one of claims 1 to 3, characterised in that the ground plane (5,7) is realised on a lower or external face of said first and second substrate parts.
- Printed directive tapered slot-type antenna system comprising a first substrate (10,20) and N second substrates (11 a, 11 b; 21 a, 21 b, 21 c, 21 d), the N second substrates forming an angle A with respect to the first substrate, the first substrate and the N second substrates delimiting N sectors, characterised in that, in at least one of the sectors, is realised a directive antenna according to one of claims 1 to 4, the first part being formed by the first substrate and the second part being formed by one of the second substrates.
- System according to claim 5, characterised in that a directive antenna is realised in each sector of the same rank, even or odd.
- Printed directive tapered slot-type antenna system comprising a first substrate (30; 40), a third substrate (32; 42) and N second substrates (31 a to 31 h; 41 a to 41 f), the N second substrates forming an angle A with respect to the first substrate and an angle B with respect to the third substrate, the first substrate, the third substrate and the N second substrates delimiting N sectors, characterised in that, in at least one of the sectors of even or odd rank, is realised a directive antenna according to one of claims 1 to 4, the first part being formed by the first substrate and the second part being formed by one of the second substrates and in at least one of the sectors of odd or even rank, is realised a directive antenna according to one of claims 1 to 4, the first part being formed by the third substrate and the second part being formed by one of the other second substrates.
- System according to claim 7, characterised in that angle A and angle B are equal to 90°.
- Printed directive tapered slot-type antenna system comprising a first substrate (50), a third substrate (52), the first and third substrates being of polygonal shape, and N second substrates (51 a, 51 b, 51 c, 51 d), N corresponding to the number of sides of the polygon, the N second substrates connecting the first substrate to the third substrate, characterised in that, at at least one of the connections between the first substrate or the third substrate and one of the second substrates, is realised a directive antenna according to one of claims 1 to 4.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1150272A FR2970603A1 (en) | 2011-01-13 | 2011-01-13 | SLOT TYPE PRINTED DIRECTIVE ANTENNA AND NETWORK SYSTEM MULTIPLE ANTENNAES SLOT-TYPE PRINTED DIRECTIVES |
PCT/FR2011/052822 WO2012095571A1 (en) | 2011-01-13 | 2011-11-30 | Printed slot-type directional antenna, and system comprising an array of a plurality of printed slot-type directional antennas |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2664030A1 EP2664030A1 (en) | 2013-11-20 |
EP2664030B1 true EP2664030B1 (en) | 2015-10-21 |
Family
ID=44512396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11802519.6A Not-in-force EP2664030B1 (en) | 2011-01-13 | 2011-11-30 | Printed slot-type directional antenna, and system comprising an array of a plurality of printed slot-type directional antennas |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130285865A1 (en) |
EP (1) | EP2664030B1 (en) |
JP (1) | JP2014507858A (en) |
KR (1) | KR20140004714A (en) |
CN (1) | CN103597661A (en) |
FR (1) | FR2970603A1 (en) |
WO (1) | WO2012095571A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI464958B (en) * | 2010-12-03 | 2014-12-11 | Ind Tech Res Inst | Antenna structure and multi-beam antenna array using the same |
CN106463836A (en) * | 2014-05-09 | 2017-02-22 | 诺基亚通信公司 | Improved antenna arrangement |
CN105680154B (en) * | 2014-11-20 | 2019-01-04 | 中国航空工业集团公司雷华电子技术研究所 | A kind of restructural phased array antenna module |
US9577330B2 (en) * | 2014-12-30 | 2017-02-21 | Google Inc. | Modified Vivaldi antenna with dipole excitation mode |
CN106129593B (en) * | 2016-06-06 | 2018-10-02 | 合肥工业大学 | A kind of all-metal Phased Array Radar Antenna unit of two dimension wide angle scanning |
CN106450702B (en) * | 2016-11-23 | 2019-10-18 | 上海无线电设备研究所 | A kind of broadband dual-linear polarization taper slot antenna |
KR101952208B1 (en) * | 2017-06-29 | 2019-02-26 | 홍익대학교 산학협력단 | Antenna for changing ploarisation using hinge |
JP6401835B1 (en) * | 2017-08-07 | 2018-10-10 | 株式会社ヨコオ | Antenna device |
JP6810004B2 (en) * | 2017-09-05 | 2021-01-06 | Kddi株式会社 | Antenna device |
TWI677133B (en) | 2018-03-22 | 2019-11-11 | 國立交通大學 | Signal line conversion structure of the antenna array |
CN111987448B (en) * | 2020-09-18 | 2022-08-12 | 上海无线电设备研究所 | Dual-polarized Vivaldi antenna |
TWI822148B (en) * | 2022-06-28 | 2023-11-11 | 國立臺北科技大學 | Wireless communication antenna for wearable device |
CN115224467B (en) * | 2022-08-03 | 2023-07-25 | 荣耀终端有限公司 | Foldable electronic device including antenna |
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US4001834A (en) * | 1975-04-08 | 1977-01-04 | Aeronutronic Ford Corporation | Printed wiring antenna and arrays fabricated thereof |
JPS5735401A (en) * | 1980-08-12 | 1982-02-26 | Mitsubishi Electric Corp | Electromagnetic wave lens element |
GB2220303A (en) * | 1988-06-29 | 1990-01-04 | Philips Electronic Associated | Dual polarised phased array antenna |
SE500477C2 (en) * | 1992-11-20 | 1994-07-04 | Jan Peter Edward Cassel | Y antenna |
JP3216485B2 (en) * | 1995-08-04 | 2001-10-09 | 三菱電機株式会社 | Broadband notch antenna |
JP3445931B2 (en) * | 1998-04-15 | 2003-09-16 | 株式会社エヌ・ティ・ティ・ドコモ | Tapered slot antenna |
US6043785A (en) * | 1998-11-30 | 2000-03-28 | Radio Frequency Systems, Inc. | Broadband fixed-radius slot antenna arrangement |
US6414645B1 (en) * | 2001-08-08 | 2002-07-02 | The Boeing Company | Circularly polarized notch antenna |
US6876334B2 (en) * | 2003-02-28 | 2005-04-05 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Wideband shorted tapered strip antenna |
FR2873236A1 (en) * | 2004-07-13 | 2006-01-20 | Thomson Licensing Sa | BROADBAND OMNIDIRECTIONAL RADIANT DEVICE |
US7444736B1 (en) * | 2006-04-27 | 2008-11-04 | Lockheed Martin Corporation | Method for fabricating horn antenna |
FR2909486A1 (en) * | 2006-12-01 | 2008-06-06 | Thomson Licensing Sas | MULTI-SECTOR ANTENNA |
CN201017991Y (en) * | 2006-12-29 | 2008-02-06 | 黑龙江科技学院 | 3.1~10.6GHz Vivaldi ultra-wideband antenna |
JP4772715B2 (en) * | 2007-03-09 | 2011-09-14 | 三菱電機株式会社 | Antenna device |
JP4924622B2 (en) * | 2009-01-21 | 2012-04-25 | 三菱電機株式会社 | Tapered slot antenna and taper slot array antenna apparatus using the same |
CN101707288B (en) * | 2009-11-13 | 2013-01-02 | 南京邮电大学 | Folding ultra-broadband tapered slot antenna |
-
2011
- 2011-01-13 FR FR1150272A patent/FR2970603A1/en not_active Withdrawn
- 2011-11-30 EP EP11802519.6A patent/EP2664030B1/en not_active Not-in-force
- 2011-11-30 KR KR20137021290A patent/KR20140004714A/en not_active Application Discontinuation
- 2011-11-30 WO PCT/FR2011/052822 patent/WO2012095571A1/en active Application Filing
- 2011-11-30 CN CN201180069272.1A patent/CN103597661A/en active Pending
- 2011-11-30 US US13/979,466 patent/US20130285865A1/en not_active Abandoned
- 2011-11-30 JP JP2013548872A patent/JP2014507858A/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
JP2014507858A (en) | 2014-03-27 |
CN103597661A (en) | 2014-02-19 |
WO2012095571A1 (en) | 2012-07-19 |
EP2664030A1 (en) | 2013-11-20 |
FR2970603A1 (en) | 2012-07-20 |
KR20140004714A (en) | 2014-01-13 |
US20130285865A1 (en) | 2013-10-31 |
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