ES2301218T3 - DOUBLE BAND ANTENNA. - Google Patents
DOUBLE BAND ANTENNA. Download PDFInfo
- Publication number
- ES2301218T3 ES2301218T3 ES98962782T ES98962782T ES2301218T3 ES 2301218 T3 ES2301218 T3 ES 2301218T3 ES 98962782 T ES98962782 T ES 98962782T ES 98962782 T ES98962782 T ES 98962782T ES 2301218 T3 ES2301218 T3 ES 2301218T3
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- patch
- coupling
- ground plane
- feed
- power
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
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- 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
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
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- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
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- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
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- 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
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
- H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
Abstract
Un dispositivo de stent expansible para su inserción en el interior de un conducto, comprendiendo dicho dispositivo expansible un cuerpo (2, 20) conformado de al menos un material (24, 26) flexible, pudiendo pasar dicho cuerpo desde un estado comprimido, en el cual es de un tamaño adecuado para ser insertado en el interior del conducto, hasta un estado expandido, en el cual el cuerpo queda fijado con respecto al conducto, medios (6, 30) de conducto en dicho cuerpo y que se extienden sobre al menos una zona del cuerpo, un medio (10, 32) de entrada que comunica con dichos medios de conducto para permitir que se introduzca un material rigidizador en el interior de dicho conducto de manera que, durante el uso, al menos dicha zona de dicho cuerpo pueda ser rigidizada de modo que se mantenga el cuerpo en su estado expandido, caracterizado porque dichos medios de conducto comprenden un canal (8) principal con canales (12) secundarios que se extienden a intervalos en dirección transversal desde dicho canal y en comunicación con él, estando definidos el canal o canales en la superficie del cuerpo mediante sellado a dicha superficie de los bordes laterales longitudinales de una tira o tiras conformadas apropiadamente de material flexible.An expandable stent device for insertion into a duct, said expandable device comprising a body (2, 20) formed of at least one flexible material (24, 26), said body being able to pass from a compressed state, into the which is of a suitable size to be inserted inside the conduit, to an expanded state, in which the body is fixed with respect to the conduit, means (6, 30) of conduit in said body and extending over at least an area of the body, an inlet means (10, 32) that communicates with said conduit means to allow a stiffening material to be introduced into said conduit so that, during use, at least said area of said body it can be stiffened so that the body is maintained in its expanded state, characterized in that said duct means comprise a main channel (8) with secondary channels (12) extending at intervals in the transverse direction d from said channel and in communication with it, the channel or channels being defined on the surface of the body by sealing to said surface the longitudinal side edges of a strip or strips properly formed of flexible material.
Description
Antena de doble banda.Dual band antenna.
La presente invención se refiere a una antena de banda doble, que comprende al menos un elemento de antena que incluye una serie de parches radiantes paralelos entre ellos, sustancialmente planos, que son alimentados con potencia de microondas desde una red de alimentación a través de unos medios de acoplamiento en una capa de plano de tierra de un material eléctricamente conductor.The present invention relates to an antenna of double band, comprising at least one antenna element that includes a series of parallel radiant patches between them, substantially flat, which are fed with power of microwaves from a power supply network through means of coupling in a ground plane layer of a material electrically conductive
Se conocen en general con diversas formas antenas similares, algunas de ellas con únicamente un parche radiante. Véanse, por ejemplo las memorias de la patente norteamericana 5030961 (Tsao), 5241321 (Tsao), 5355143 (Zürcher y otros), la solicitud de patente europea, publicación número 520908 (Alcatel Espace) y la solicitud internacional publicada PCT/SE97/00776 (Allgon).They are generally known in various ways similar antennas, some of them with only one patch radiant. See, for example, patent reports American 5030961 (Tsao), 5241321 (Tsao), 5355143 (Zürcher and others), European patent application, publication number 520908 (Alcatel Espace) and the published international application PCT / SE97 / 00776 (Allgon).
El artículo "Parches apilados con una ranura en la pared común para funcionamiento en banda única y doble" F.Y. COLOMB, P.E. MAYES, IEEE ANTENAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, JULIO 1992, volumen 4, páginas 2077-2080, describe una antena doble como la expuesta en el preámbulo de la reivindicación independiente 1.The article "Patches stacked with a groove in the common wall for single and double band operation " F.Y. COLOMB, P.E. MAYES, IEEE ANTENAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, JULY 1992, volume 4, pages 2077-2080, describes a double antenna like the set forth in the preamble of independent claim 1.
Recientemente, la demanda de antenas para aplicaciones móviles inalámbricas ha aumentado extraordinariamente, y existen ahora una serie de sistemas terrestres y basados en satélite para comunicaciones inalámbricas que emplean una gama amplia de bandas de frecuencia. En consecuencia, existe también la necesidad de un único elemento de antena que tenga elementos radiantes para parches que puedan funcionar en dos o más bandas de frecuencia independientes.Recently, the demand for antennas for Wireless mobile applications has increased extraordinarily, and there are now a series of land systems and based on satellite for wireless communications that employ a range Wide frequency bands. Consequently, there is also the need for a single antenna element that has elements radiants for patches that can work in two or more bands of independent frequency.
El objeto principal de la presente invención es proporcionar una antena de esta clase con un elemento de antena que sea operable en al menos dos bandas de frecuencia independientes, siendo cada banda preferiblemente bastante ancha.The main object of the present invention is provide an antenna of this class with an antenna element that be operable in at least two independent frequency bands, each band being preferably quite wide.
Otro objeto es proporcionar una antena con un
elemento de antena que funcione con polarización doble con el fin
de lograr una diversidad deseada de la radiación de microondas
transmitida desde la antena o recibida por la misma. Tal diversidad
es especialmente útil para antenas de estación de base. Las ondas
portadoras polarizadas dobles deben ser ortogonales unas con
respecto a otras con un buen aislamiento entre ellas,
preferiblemente mejor de
30 dB.Another object is to provide an antenna with an antenna element that operates with double polarization in order to achieve a desired diversity of microwave radiation transmitted from or received by the antenna. Such diversity is especially useful for base station antennas. The double polarized carrier waves should be orthogonal with respect to each other with good insulation between them, preferably better than
30 dB
El objeto principal, según se señala anteriormente, se logra mediante una antena como la que se expone en la reivindicación 1.The main object, as noted previously, it is achieved through an antenna like the one exposed in claim 1
De este modo, el primer parche tendrá una función operativa doble, es decir, servirá como elemento radiante, pero también como elemento de acoplamiento con el fin de acoplar, por medio de su abertura, la potencia de microondas proveniente de la red de alimentación y la abertura de la capa de plano de tierra al segundo parche.In this way, the first patch will have a double operational function, that is, it will serve as a radiant element, but also as a coupling element in order to couple, through its opening, the microwave power coming from the power grid and the opening of the ground plane layer to the second patch.
Con el fin de obtener un acoplamiento efectivo, es preferible disponer un tercer parche entre la capa de plano de tierra y el primer parche, sirviendo el tercer parche para acoplar la potencia de microondas a la segunda banda de frecuencia. El tercer parche deberá ser sustancialmente del mismo tamaño que el segundo parche, pero menor que el primer parche.In order to obtain an effective coupling, it is preferable to have a third patch between the plane layer of earth and the first patch, serving the third patch to couple microwave power to the second frequency band. He third patch should be substantially the same size as the second patch, but smaller than the first patch.
La doble polarización se puede lograr en cada banda de frecuencia. De manera ventajosa, los medios de acoplamiento en la capa de plano de tierra comprenden una abertura, y cada una de las aberturas tiene forma de cruz, con dos ranuras entrecruzadas que son perpendiculares una a otra. Los parches primero y segundo deberán centrarse entonces con respecto al punto central de la abertura en forma de cruz de la capa de plano de tierra.Double polarization can be achieved in each frequency band. Advantageously, the coupling means in the ground plane layer comprise an opening, and each of the openings is shaped like a cross, with two interlocking grooves that are perpendicular to each other. The first and second patches they should then focus on the central point of the cross-shaped opening of the ground plane layer.
Estas y otras características preferidas se exponen en las reivindicaciones anexas y se harán evidentes a partir de la siguiente descripción detallada.These and other preferred features are set forth in the appended claims and will become apparent to from the following detailed description.
La invención se explicará ahora en forma más detallada con referencia a los dibujos anexos, que ilustran una realización preferida de la invención.The invention will now be explained in more detail. detailed with reference to the attached drawings, which illustrate a preferred embodiment of the invention.
La figura 1 es una vista despiezada en perspectiva de un elemento de antena con una serie de parches sustancialmente planos situados sobre una capa de plano de tierra que tiene una abertura en forma de cruz, una red de alimentación y una jaula de apantallamiento inferior o trasera; yFigure 1 is an exploded view in perspective of an antenna element with a series of patches substantially flat located on a ground plane layer which has a cross-shaped opening, a feeding net and a lower or rear shield cage; Y
La figura 2 es una vista desde la parte inferior del elemento de antena mostrado en la figura 1, estando retirada la jaula de apantallamiento inferior por motivos de claridad.Figure 2 is a view from the bottom of the antenna element shown in figure 1, the lower shield cage for clarity reasons.
La figura 3 es una vista en perspectiva, correspondiente a la figura 1, de una segunda realización del elemento de antena.Figure 3 is a perspective view, corresponding to figure 1, of a second embodiment of the antenna element.
El elemento de antena, mostrado muy esquemáticamente en la figura 1, comprende una estructura de parches con tres capas de parche sustancialmente planas 1, 2 y 3 situadas una sobre otra y centradas sobre una capa de plano de tierra 4 que sirve como reflector.The antenna element, shown very schematically in figure 1, it comprises a patch structure with three substantially flat patch layers 1, 2 and 3 located one over another and centered on a layer of ground plane 4 that It serves as a reflector.
La capa de plano de tierra 4 está fabricada de un material eléctricamente conductor, por ejemplo aluminio, y está provista de una abertura en forma de cruz situada centralmente con dos ranuras mutuamente perpendiculares 5a, 5b. La abertura en forma de cruz 5a, 5b es excitada por una red 6 de alimentación de microbandas que está grabada sobre una capa de sustrato 7 colocada por debajo de la capa de plano de tierra 4.The ground plane layer 4 is made of an electrically conductive material, for example aluminum, and is provided with a cross-shaped opening centrally located with two mutually perpendicular grooves 5a, 5b. Shaped opening cross 5a, 5b is excited by a power supply network 6 of microbands that are etched on a layer of substrate 7 placed below the ground plane layer 4.
En la parte inferior, es decir, por debajo del sustrato 7 o en el lado trasero del mismo, existe una jaula de apantallamiento 8 que sirve para impedir la propagación de microondas hacia atrás o hacia los lados en paralelo al plano definido por la capa de plano de tierra 4. La jaula de apantallamiento 8 está fabricada igualmente de un material eléctricamente conductor, tal como aluminio, y está dotada preferiblemente de unas lengüetas o espigas afiladas 8a que sobresalen hacia arriba, que se extienden a través de unos agujeros correspondientes del sustrato 7 y que están conectadas a la capa de plano de tierra 4, por ejemplo mediante conexiones soldadas en ánimas correspondientes de la capa de plano de tierra 4 (no mostradas).At the bottom, that is, below the substrate 7 or on the back side of it, there is a cage of shielding 8 which serves to prevent the spread of microwave backward or sideways parallel to the plane defined by the ground plane layer 4. The cage of shielding 8 is also made of a material electrically conductive, such as aluminum, and is equipped preferably of sharp tongues or spikes 8a that protrude upwards, which extend through holes corresponding to the substrate 7 and which are connected to the layer of ground plane 4, for example by connections welded in corresponding bores of the ground plane layer 4 (no shown).
Los parches 1, 2 y 3 están separados uno de otro por un material de espuma (no mostrado), por ejemplo del tipo denominado ROHACELL, que tiene una permitividad de aproximadamente 1,05. Preferiblemente, la capa de sustrato 7 está fabricada de un material de teflón, tal como DICLAD 527, teniendo un grosor de 0,762 mm y una permitividad de 2,55.Patches 1, 2 and 3 are separated from each other by a foam material (not shown), for example of the type called ROHACELL, which has a permittivity of approximately 1.05. Preferably, the substrate layer 7 is made of a Teflon material, such as DICLAD 527, having a thickness of 0.762 mm and a permittivity of 2.55.
Tal como es en sí conocido, la red de alimentación 6 está provista de unos elementos 6a, 6b de alimentación similares a horquillas que son perpendiculares uno a otro y a una correspondiente de las ranuras 5a, 5b de la capa de plano de tierra 4, sirviendo las ranuras 5a, 5b como medios de acoplamiento para la potencia de microondas. Véase también la figura 2.As it is known in itself, the network of power 6 is provided with elements 6a, 6b of feed similar to forks that are perpendicular to each other another and to a corresponding one of the slots 5a, 5b of the layer of ground plane 4, serving slots 5a, 5b as means of microwave power coupling. See also the figure 2.
Según la presente invención, la red de alimentación 6 está destinada a alimentar potencia de microondas en dos bandas de frecuencia independientes, incluyendo una primera banda de frecuencia relativamente baja, por ejemplo, la banda GSM de 880-960 MHz y una segunda banda de frecuencia relativamente baja, por ejemplo la banda de frecuencia DCS de 1719-1880 MHz DCS.According to the present invention, the network of power 6 is intended to power microwave power in two independent frequency bands, including a first relatively low frequency band, for example, the GSM band 880-960 MHz and a second frequency band relatively low, for example the DCS frequency band of 1719-1880 MHz DCS.
En la banda de frecuencia más baja, los elementos de alimentación 6a, 6b alimentan potencia de microondas, a través de las ranuras 5a, 5b (un canal polarizado verticalmente y un canal horizontalmente polarizado), al parche radiante 2 relativamente grande, que irradia potencia de microondas según un patrón bien definido (hacia arriba en la figura 1).In the lower frequency band, the power elements 6a, 6b feed microwave power, through slots 5a, 5b (a vertically polarized channel and a horizontally polarized channel), to radiant patch 2 relatively large, radiating microwave power according to a well defined pattern (up in figure 1).
Además, los elementos de alimentación 6a, 6b también alimentarán potencia de microondas en la segunda banda de frecuencia relativamente alta, a través de las ranuras 5a, 5b de la capa de plano de tierra 4 y a través de una abertura en forma de cruz 9a, 9b de la capa de parche 2, al parche superior radiante 1 relativamente pequeño.In addition, the power elements 6a, 6b they will also feed microwave power in the second band of relatively high frequency, through slots 5a, 5b of the ground plane layer 4 and through an opening in the form of cross 9a, 9b of patch layer 2, to radiant top patch 1 relatively small
Con el fin de lograr un acoplamiento efectivo, la abertura en forma de cruz 9a, 9b consta de ranuras perpendiculares 9a, 9b, que son paralelas a una respectiva de las ranuras 5a, 5b, aunque de una longitud más corta. Asimismo, el parche 3, situado entre la capa de plano de tierra 4 y el parche 2, sirve para aumentar el efecto de acoplamiento en la segunda banda de frecuencia relativamente alta. El parche 3 deberá ser ligeramente más grande, o sustancialmente del mismo tamaño, que el parche radiante 1, pero más pequeño que el parche radiante 2.In order to achieve an effective coupling, the cross-shaped opening 9a, 9b consists of grooves perpendicular 9a, 9b, which are parallel to a respective one of the slots 5a, 5b, although of a shorter length. Also, the patch 3, located between the ground plane layer 4 and patch 2, serves to increase the coupling effect in the second band of relatively high frequency. Patch 3 should be slightly larger, or substantially the same size, as the patch radiant 1, but smaller than the radiant patch 2.
En la realización ilustrada, los elementos de alimentación 6a y 6b están posicionados en el mismo plano en la parte inferior de la capa de sustrato 7. Por tanto, es necesario tener un puente de aire en el punto de cruce 6c de los dos elementos de alimentación 6a, 6b. Cada elemento de alimentación está dividido en dos derivaciones de 50 \Omega que finalizan en unos tetones de circuito abierto. En ambas bandas de frecuencia, se proporciona una pequeña cantidad de sintonización capacitiva simétrica por medio de unas secciones cortas 6aa, 6bb que son algo más anchas de aproximadamente 30 mm antes de las respectivas ranuras 5a, 5b de la ranura.In the illustrated embodiment, the elements of power 6a and 6b are positioned in the same plane in the lower part of the substrate layer 7. Therefore, it is necessary have an air bridge at the crossing point 6c of the two power elements 6a, 6b. Each power item is divided into two 50 \ Omega leads ending in about open circuit lugs. In both frequency bands, it provides a small amount of capacitive tuning symmetric by means of short sections 6aa, 6bb that are something wider than approximately 30 mm before the respective grooves 5a, 5b of the groove.
El tamaño y la posición del parche radiante relativamente grande 2 se selecciona para obtener un buen rendimiento en la banda de frecuencia más baja, correspondiendo la longitud y la anchura del parche 2 esencialmente a las longitudes de las ranuras 5a y 5b. Obviamente, los parches 1, 2, 3 no tienen que ser cuadrados o rectangulares, sino que pueden tener alguna otra configuración, por ejemplo circular o rómbica. En caso de que se emplee polarización doble, deberán ser simétricos con referencia a una rotación de 90º o un múltiplo de la misma.The size and position of the radiant patch relatively large 2 is selected to get a good performance in the lower frequency band, corresponding to the length and width of patch 2 essentially to the lengths of slots 5a and 5b. Obviously, patches 1, 2, 3 do not have to be square or rectangular, but may have some other configuration, for example circular or rhombic. If double polarization is used, they must be symmetrical with reference at a rotation of 90 ° or a multiple thereof.
Las ranuras 9a, 9b del parche radiante 2 deberán ser más cortas que las ranuras 5a, 5b. Preferiblemente, la longitud respectiva de estas ranuras 9a, 9b deberá corresponderse con las dimensiones del parche radiante relativamente pequeño 1. Como se mencionó anteriormente, el parche de acoplamiento 3 deberá ser ligeramente más grande que el parche radiante 1, o sustancialmente de igual tamaño que el mismo.Slots 9a, 9b of the radiant patch 2 should be shorter than slots 5a, 5b. Preferably, the length respective of these slots 9a, 9b must correspond to the relatively small radiant patch dimensions 1. How to mentioned above, coupling patch 3 should be slightly larger than radiant patch 1, or substantially of the same size as the same.
Además, las ranuras 9a, 9b pueden hacerse girar en un ángulo, por ejemplo de 45º, con relación a las ranuras más largas 5a, 5b.In addition, the slots 9a, 9b can be rotated at an angle, for example 45º, in relation to the slots more long 5a, 5b.
Ha de observarse que el parche radiante 2 relativamente grande funciona como un plano de tierra para el parche superior relativamente pequeño 1. Esto se ha confirmado en experimentos prácticos. De hecho, se averiguó que los patrones de radiación de los parches 1 y 2 eran bastante similares. Asimismo, la relación entre el tamaño del parche 2 y la capa de plano de tierra 4 es aproximadamente igual a la relación entre el parche pequeño 1 y el parche grande 2.It should be noted that the radiant patch 2 relatively large works like a ground plane for the patch relatively small top 1. This has been confirmed in practical experiments In fact, it was found that the patterns of Radiation from patches 1 and 2 were quite similar. Also, the relationship between patch 2 size and ground plane layer 4 is approximately equal to the ratio between the small patch 1 and the big patch 2.
Asimismo, se ha averiguado que es posible ajustar la anchura del haz de microondas radiado variando la anchura del parche respectivo 1, 2.It has also been found that it is possible adjust the width of the radiated microwave beam by varying the width of the respective patch 1, 2.
Los experimentos también han confirmado que la jaula o caja de apantallamiento 8 reduce la radiación hacia atrás hasta prácticamente cero. Por tanto, es importante que la jaula o caja 8 está conectada directamente a la capa de plano de tierra 4. Como alternativa, esto se puede lograr por medio de tornillos eléctricamente conductores.Experiments have also confirmed that the cage or shield box 8 reduces radiation backwards until practically zero. Therefore, it is important that the cage or box 8 is directly connected to the ground plane layer 4. As an alternative, this can be achieved by means of screws electrically conductive
Experimentos prácticos también han mostrado que es posible lograr una pérdida de retorno de al menos 15 dB en la banda inferior (GSM) para ambos canales. En la banda superior (DCS) la pérdida de retorno es mayor de 10 dB. Además, los anchos de banda para una pérdida de retorno mayor de 10 dB fueron del 14,3% alrededor de 920 MHz y del 14,7% alrededor de 1795 MHz. Finalmente, se comprobó que el aislamiento entre los dos canales en cada banda de frecuencia era mayor de 32 dB.Practical experiments have also shown that it is possible to achieve a return loss of at least 15 dB in the lower band (GSM) for both channels. In the upper band (DCS) The return loss is greater than 10 dB. In addition, the widths of band for a loss of return greater than 10 dB were 14.3% around 920 MHz and 14.7% around 1795 MHz. Finally, it was found that the isolation between the two channels in each band frequency was greater than 32 dB.
La figura 3 muestra una realización ligeramente diferente, en la que la red de alimentación está constituida por cables coaxiales 6'a y 6'b, uno para cada polarización. En la capa tierra 4', estos cables están conectados a sondas 5'a y 5'b, respectivamente. El conductor central de cada cable 6'a, 6'b está conectado así a la sonda respectiva 5'a, 5'b, la cual, a su vez, está conectada al parche de acoplamiento 3', mientras que el conductor tubular exterior de cada cable coaxial está conectado a la capa de plano de tierra 4'. Si se desea, puede haber más de un par de cables coaxiales y sondas. Asimismo, en principio, es posible combinar alimentación de sonda y acoplamiento de abertura, uno para cada polarización.Figure 3 shows an embodiment slightly different, in which the power supply network consists of 6'a and 6'b coaxial cables, one for each polarization. In the layer 4 'ground, these wires are connected to probes 5'a and 5'b, respectively. The center conductor of each cable 6'a, 6'b is thus connected to the respective probe 5'a, 5'b, which, in turn, is connected to the coupling patch 3 ', while the outer tubular conductor of each coaxial cable is connected to the 4 'ground plane layer. If desired, there may be more than one pair of coaxial cables and probes. Also, in principle, it is possible combine probe feed and opening coupling, one for Each polarization
La antena según la invención puede modificarse dentro del alcance de las reivindicaciones anexas. La antena puede comprender dos o varios elementos de antena en una fila o en varias filas en una disposición matricial. Además, cada elemento de antena puede comprender más de dos parches radiantes, radiando cada uno en una banda de frecuencia específica. Preferiblemente, las bandas de frecuencia están ampliamente separadas una de otra, típicamente en una octava entre bandas de frecuencia adyacentes. Además, según se indicó anteriormente, la polarización doble puede ser lineal según se muestra, o circular. Por supuesto, el concepto inventivo también puede aplicarse sin polarización doble. En tal caso, las aberturas de la capa de plano de tierra 4 y el parche 2 no tienen que ser de forma de cruz, sino que pueden tener cualquier configuración deseada.The antenna according to the invention can be modified within the scope of the appended claims. The antenna can comprise two or more antenna elements in a row or in several rows in a matrix arrangement. In addition, each antenna element can comprise more than two radiant patches, radiating each in a specific frequency band. Preferably, the bands of frequency are widely separated from each other, typically in one octave between adjacent frequency bands. Also, as per indicated above, the double polarization can be linear according to It is shown, or circular. Of course, the inventive concept too It can be applied without double polarization. In such case, the openings of the ground plane layer 4 and patch 2 do not have to be of cross shape, but they can have any configuration desired.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9704642 | 1997-12-12 | ||
| SE9704642A SE511064C2 (en) | 1997-12-12 | 1997-12-12 | dual band antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2301218T3 true ES2301218T3 (en) | 2008-06-16 |
Family
ID=20409368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES98962782T Expired - Lifetime ES2301218T3 (en) | 1997-12-12 | 1998-12-07 | DOUBLE BAND ANTENNA. |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1038332B1 (en) |
| CN (1) | CN1147966C (en) |
| AU (1) | AU1794099A (en) |
| BR (1) | BR9813505B1 (en) |
| DE (1) | DE69839348T2 (en) |
| ES (1) | ES2301218T3 (en) |
| HK (1) | HK1033210A1 (en) |
| SE (1) | SE511064C2 (en) |
| TW (1) | TW413967B (en) |
| WO (1) | WO1999031757A1 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE515092C2 (en) | 1999-03-15 | 2001-06-11 | Allgon Ab | Double band antenna device |
| WO2001013461A1 (en) | 1999-08-13 | 2001-02-22 | Rangestar Wireless, Inc. | Diversity antenna system for lan communication system |
| CN100355148C (en) | 1999-09-20 | 2007-12-12 | 弗拉克托斯股份有限公司 | Multilever antenna |
| ES2156832B1 (en) * | 1999-10-07 | 2002-03-01 | Univ Valencia Politecnica | DUAL BAND PRINTED ANTENNA |
| WO2001031747A1 (en) | 1999-10-26 | 2001-05-03 | Fractus, S.A. | Interlaced multiband antenna arrays |
| SE518237C2 (en) * | 2000-11-27 | 2002-09-10 | Allgon Ab | Microwave antenna with patch mounting device |
| FR2828015A1 (en) * | 2001-07-27 | 2003-01-31 | D Phy Espace Dev De Produits H | Antenna feed circuit used in connection with a flat antenna incorporates a dielectric plate with a micro-tape and an earth surface with a radiant slot |
| BG64431B1 (en) | 2001-12-19 | 2005-01-31 | Skygate International Technology N.V. | Antenna element |
| US7705793B2 (en) | 2004-06-10 | 2010-04-27 | Raysat Antenna Systems | Applications for low profile two way satellite antenna system |
| US8761663B2 (en) | 2004-01-07 | 2014-06-24 | Gilat Satellite Networks, Ltd | Antenna system |
| US7911400B2 (en) | 2004-01-07 | 2011-03-22 | Raysat Antenna Systems, L.L.C. | Applications for low profile two-way satellite antenna system |
| US7626549B2 (en) * | 2007-03-28 | 2009-12-01 | Eswarappa Channabasappa | Compact planar antenna for single and multiple polarization configurations |
| US8354972B2 (en) | 2007-06-06 | 2013-01-15 | Fractus, S.A. | Dual-polarized radiating element, dual-band dual-polarized antenna assembly and dual-polarized antenna array |
| US8120536B2 (en) | 2008-04-11 | 2012-02-21 | Powerwave Technologies Sweden Ab | Antenna isolation |
| KR100988909B1 (en) * | 2008-09-23 | 2010-10-20 | 한국전자통신연구원 | Microstrip patch antenna with high gain and wide band characteristics |
| DE102008059268A1 (en) | 2008-11-27 | 2009-11-19 | Kathrein-Werke Kg | Positional recognition device for antenna, particularly mobile phone antenna, has integrated inclination sensor and global positioning system, where device is provided in control unit for adjusting electrical beam deflection with antenna |
| KR101111668B1 (en) * | 2010-08-27 | 2012-03-13 | 한국전자통신연구원 | Microstrip patch antenna with high gain and wide band characteristics |
| CN102570019B (en) * | 2012-01-17 | 2014-12-17 | 上海大亚科技有限公司 | Surface-mounted radio-frequency antenna unit supporting double frequency and corresponding radio-frequency antenna system |
| CN102842755B (en) * | 2012-07-11 | 2015-07-22 | 桂林电子科技大学 | Dual-polarized antenna applicable to wireless local area network and manufacturing method of dual-polarized antenna |
| CN105406190B (en) * | 2014-08-06 | 2018-03-30 | 启碁科技股份有限公司 | Flat board dual polarized antenna and combined antenna |
| WO2016131496A1 (en) * | 2015-02-20 | 2016-08-25 | Huawei Technologies Co., Ltd. | Multiport antenna element |
| KR102332120B1 (en) * | 2017-04-25 | 2021-11-30 | 삼성전자주식회사 | Meta-structure antenna and meta-structure array antenna |
| US10931014B2 (en) | 2018-08-29 | 2021-02-23 | Samsung Electronics Co., Ltd. | High gain and large bandwidth antenna incorporating a built-in differential feeding scheme |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903033A (en) * | 1988-04-01 | 1990-02-20 | Ford Aerospace Corporation | Planar dual polarization antenna |
| US5030961A (en) * | 1990-04-10 | 1991-07-09 | Ford Aerospace Corporation | Microstrip antenna with bent feed board |
| US5124713A (en) * | 1990-09-18 | 1992-06-23 | Mayes Paul E | Planar microwave antenna for producing circular polarization from a patch radiator |
| CA2061254C (en) * | 1991-03-06 | 2001-07-03 | Jean Francois Zurcher | Planar antennas |
| JPH06500909A (en) * | 1991-06-28 | 1994-01-27 | アルカテル・エスパース | linear array antenna |
| US5241321A (en) * | 1992-05-15 | 1993-08-31 | Space Systems/Loral, Inc. | Dual frequency circularly polarized microwave antenna |
| GB9220414D0 (en) * | 1992-09-28 | 1992-11-11 | Pilkington Plc | Patch antenna assembly |
-
1997
- 1997-12-12 SE SE9704642A patent/SE511064C2/en not_active IP Right Cessation
-
1998
- 1998-03-10 TW TW87103453A patent/TW413967B/en not_active IP Right Cessation
- 1998-12-07 CN CNB98812131XA patent/CN1147966C/en not_active Expired - Fee Related
- 1998-12-07 AU AU17940/99A patent/AU1794099A/en not_active Abandoned
- 1998-12-07 EP EP98962782A patent/EP1038332B1/en not_active Expired - Lifetime
- 1998-12-07 WO PCT/SE1998/002235 patent/WO1999031757A1/en active Application Filing
- 1998-12-07 BR BRPI9813505-8A patent/BR9813505B1/en not_active IP Right Cessation
- 1998-12-07 ES ES98962782T patent/ES2301218T3/en not_active Expired - Lifetime
- 1998-12-07 DE DE69839348T patent/DE69839348T2/en not_active Expired - Lifetime
-
2001
- 2001-06-01 HK HK01103784A patent/HK1033210A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW413967B (en) | 2000-12-01 |
| DE69839348D1 (en) | 2008-05-21 |
| SE9704642L (en) | 1999-06-13 |
| SE511064C2 (en) | 1999-07-26 |
| CN1281590A (en) | 2001-01-24 |
| BR9813505B1 (en) | 2012-05-02 |
| DE69839348T2 (en) | 2008-07-17 |
| AU1794099A (en) | 1999-07-05 |
| EP1038332A1 (en) | 2000-09-27 |
| CN1147966C (en) | 2004-04-28 |
| WO1999031757A1 (en) | 1999-06-24 |
| SE9704642D0 (en) | 1997-12-12 |
| EP1038332B1 (en) | 2008-04-09 |
| HK1033210A1 (en) | 2001-08-17 |
| BR9813505A (en) | 2000-10-10 |
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