ES1068182U - Antenna for the reception of digital terrestrial tv (Machine-translation by Google Translate, not legally binding) - Google Patents

Antenna for the reception of digital terrestrial tv (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES1068182U
ES1068182U ES200801260U ES200801260U ES1068182U ES 1068182 U ES1068182 U ES 1068182U ES 200801260 U ES200801260 U ES 200801260U ES 200801260 U ES200801260 U ES 200801260U ES 1068182 U ES1068182 U ES 1068182U
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approximately
director
dipole
reflector
distance
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ES200801260U
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ES1068182Y (en
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Ricardo Isasi Zamalloa
Juan Diaz Roman
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Fagor Electrodomesticos SCL
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Fagor Electrodomesticos SCL
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Abstract

Antenna for the reception of terrestrial digital tv, of the type of symmetrical dipole and total impedance 75 ohms, comprising a reflector (2), a symmetrical dipole (3) constituted by two plates (3a, 3b) in the shape of "U" opposing, a passive device (4) and a plurality of directors (5) substantially equal and parallel to each other, said directors (5) being fourteen and being distributed in the same way on two support bars (6, 7) in the form of "V" "which constitute a contour with the shape of a spear tip with four vertices (10, 11, 12, 13), said support bars (6, 7) being symmetrical with respect to the bisector of the reflector (2), characterized in that the dipole ( 3) is arranged approximately 185mm from the reflector (2) and approximately 19mm from a first vertex (10) of the contour disposed in the bisector of said reflector (2), the distance (dp) being between the bases of the plates (3a, 3b) of said dipole (3) of approximately 75mm, the width being (a c) of said sheets (3a, 3b) of approximately 66mm, and the total width (at) of said dipole (3) being approximately 354mm. (Machine-translation by Google Translate, not legally binding)

Description

Antena para la recepción de TV digital terrestre.Antenna for digital TV reception land.

Sector de la técnicaTechnical sector

La presente invención se relaciona con antenas de TV terrestres para la recepción de emisiones en UHF, del tipo dipolo simétrico, y más concretamente con los detalles constructivos de dichas antenas.The present invention relates to antennas of terrestrial TV for the reception of broadcasts in UHF, of the type symmetric dipole, and more specifically with the details constructive of said antennas.

Estado anterior de la técnicaPrior state of the art

La antena objeto de la invención abarca la recepción de emisiones de los canales UHF E-21 a E-69, comprendidos en la banda de 470 MHz a 862 MHz, particularmente para conseguir la recepción regular de los canales de la gama alta, y tiene una impedancia en toda la banda de 75 ohmios.The antenna object of the invention encompasses the broadcasting of UHF E-21 channels to E-69, in the band 470 MHz to 862 MHz, particularly to get regular reception of the channels of the high range, and has an impedance in the entire band of 75 ohm

En el documento ES1030975U se divulga una antena de TV terrestre para la recepción de UHF con una impedancia de 75 ohmios. Dicha antena comprende un reflector, un dipolo, dos barras soporte en forma de "V" que constituyen un contorno con forma de punta de lanza y una pluralidad de directores distribuidos en las barras soporte. Debido a las características de dichos elementos se posibilita que dicha antena pueda llegar a tener en la banda de 470 MHz a 862 MHz una ganancia de aproximadamente 15 decibelios a una frecuencia determinada dentro de dicha banda, volviendo a disminuir dicha ganancia para las frecuencias posteriores a dicha frecuencia determinada dentro de la banda de 470 MHz a 862 MHz. La ganancia, generalmente, comienza en dicha banda a partir de aproximadamente 10 deci-
belios.Document ES1030975U discloses a terrestrial TV antenna for UHF reception with an impedance of 75 ohms. Said antenna comprises a reflector, a dipole, two "V" shaped support bars that constitute a spearhead-shaped contour and a plurality of directors distributed on the support bars. Due to the characteristics of said elements, it is possible for said antenna to have a gain of approximately 15 decibels in the band from 470 MHz to 862 MHz at a certain frequency within said band, reducing said gain again for frequencies after said frequency determined within the band of 470 MHz to 862 MHz. The gain generally begins in said band from approximately 10 dec
belios

Exposición de la invenciónExhibition of the invention

El objeto de la invención es el de proporcionar una antena para la recepción de TV digital terrestre según se describe en las reivindicaciones.The object of the invention is to provide an antenna for receiving digital terrestrial TV according to described in the claims.

La antena para la recepción de TV digital terrestre de la invención, del tipo de dipolo simétrico e impedancia total 75 ohmios, comprende un reflector, un dipolo simétrico constituido por dos chapas en forma de "U" contrapuestas, un dispositivo pasivo, y una pluralidad de directores sustancialmente iguales y paralelos entre sí, siendo dichos directores catorce y estando distribuidos de igual manera sobre dos barras soporte en forma de "V" que constituyen un contorno con forma de punta de lanza con cuatro vértices, siendo dichas barras soporte simétricas con respecto a la bisectriz del reflector.The antenna for digital TV reception terrestrial of the invention, of the symmetrical dipole type e total impedance 75 ohms, includes a reflector, a dipole symmetrical consisting of two "U" shaped plates opposing, a passive device, and a plurality of directors substantially equal and parallel to each other, said directors fourteen and being equally distributed over two "V" shaped support bars that constitute a contour with spearhead shape with four vertices, said bars being symmetric support with respect to the reflector bisector.

El dipolo está constituido por dos chapas en forma de "U" contrapuestas y está dispuesto a aproximadamente 185 mm del reflector y a aproximadamente 19 mm de un primer vértice del contorno, siendo una distancia de dipolo entre las bases de dichas chapas de aproximadamente 75 mm, una anchura de chapa de dichas chapas de aproximadamente 66 mm, y una anchura total de dicho dipolo de aproximadamente 354 mm.The dipole consists of two plates in opposing "U" shape and is willing to approximately 185 mm from the reflector and approximately 19 mm from a first vertex of the contour, being a distance of dipole between the bases of said sheets of approximately 75 mm, a sheet width of said sheets of approximately 66 mm, and a total width of said dipole of approximately 354 mm.

Estas y otras características de la invención se harán evidentes a la vista de las figuras y de la descripción detallada de la invención.These and other features of the invention are they will become apparent in view of the figures and the description Detailed of the invention.

Descripción de los dibujosDescription of the drawings

La Fig. 1 es una vista lateral de una realización de la antena de la invención.Fig. 1 is a side view of a embodiment of the antenna of the invention.

La Fig. 2 es una vista en planta de la antena de la Fig. 1.Fig. 2 is a plan view of the antenna of Fig. 1.

La Fig. 3 es una vista frontal del dipolo de la antena de la Fig. 1.Fig. 3 is a front view of the dipole of the antenna of Fig. 1.

La Fig. 4 muestra la ganancia de la antena de la Fig. 1, en la banda de frecuencias de 470 MHz a 862 MHz.Fig. 4 shows the antenna gain of the Fig. 1, in the frequency band 470 MHz to 862 MHz.

Exposición detallada de la invenciónDetailed statement of the invention

En las figuras 1 a 3 se muestra una realización de la antena 1 para la recepción de TV digital terrestre de la invención, que comprende una impedancia total de aproximadamente 75 ohmios. Dicha antena 1 comprende un tramo longitudinal 6a sobre el que se disponen un reflector 2 y un dipolo 3 simétrico, un dispositivo pasivo 4 que está dispuesto, en la bisectriz del reflector 2, a aproximadamente 70 mm del dipolo 3 y que comprende una longitud de aproximadamente 149 mm, una pluralidad de directores 5 sustancialmente iguales y paralelos entre sí, y dos barras soporte 6 y 7 en forma de "V" que constituyen un contorno con forma de punta de lanza con cuatro vértices 10, 11, 12 y 13 sobre las que se distribuyen los directores 5, siendo dichas barras soporte 6 y 7 simétricas con respecto a la bisectriz del reflector 2. El dipolo 3 está constituido por dos chapas 3a y 3b en forma de "U" contrapuestas, y está dispuesto a aproximadamente 185 mm del reflector 2 y a aproximadamente 19 mm de un primer vértice 10 del contorno, siendo la distancia Dp entre las bases de dichas chapas 3a y 3b de aproximadamente 75 mm, la anchura Ac de dichas chapas 3a y 3b de aproximadamente 66 mm, y la anchura total At de dicho dipolo 3 de aproximadamente 354 mm.An embodiment is shown in Figures 1 to 3 of antenna 1 for digital terrestrial TV reception of the invention, which comprises a total impedance of approximately 75 ohm Said antenna 1 comprises a longitudinal section 6a on the that a reflector 2 and a symmetric dipole 3 are arranged, a passive device 4 that is arranged in the bisector of the reflector 2, approximately 70 mm from the dipole 3 and comprising a length of approximately 149 mm, a plurality of directors 5 substantially equal and parallel to each other, and two bars support 6 and 7 in the form of "V" that constitute a contour with spearhead shape with four vertices 10, 11, 12 and 13 on those distributed by directors 5, said bars being support 6 and 7 symmetric with respect to the reflector bisector 2. Dipole 3 consists of two plates 3a and 3b in the form of "U" opposed, and is arranged at approximately 185 mm of reflector 2 and about 19 mm from a first vertex 10 of the contour, the distance Dp being between the bases of said plates 3a and 3b of approximately 75 mm, the width Ac of said plates 3a and 3b of approximately 66 mm, and the total width At of said dipole 3 of approximately 354 mm.

Cada barra soporte 6, 7 comprende un primer lado 6b, 7b que converge en un primer vértice 10 del contorno y que comprende una longitud aproximadamente igual a 473 mm, y un segundo lado 6c, 7c que converge en un segundo vértice 11 del contorno y que comprende una longitud aproximadamente igual a 290 mm. Un ángulo \beta1 del primer vértice 10 y un ángulo \beta2 del segundo vértice 11 son preferentemente de aproximadamente 30° y aproximadamente 50° respectivamente, mientras que unos ángulos \alpha en los dos vértices 12 y 13 restantes, entre el primer lado 6b, 7b y el segundo lado 6c, 7c, son preferentemente de aproximadamente 140°. En el primer vértice 10 y en el segundo vértice 11 dicha antena 1 comprende además un elemento de sujeción 14, 15 respectivamente, estando el pasivo 4 dispuesto en el elemento de sujeción 14.Each support bar 6, 7 comprises a first side 6b, 7b that converges at a first vertex 10 of the contour and that it comprises a length approximately equal to 473 mm, and a second side 6c, 7c that converges on a second vertex 11 of the contour and that  It comprises a length approximately equal to 290 mm. An angle β1 of the first vertex 10 and an angle β2 of the second vertex 11 are preferably about 30 ° and approximately 50 ° respectively while angles α in the two remaining vertices 12 and 13, between the first side 6b, 7b and the second side 6c, 7c, are preferably of approximately 140 °. In the first vertex 10 and in the second vertex 11 said antenna 1 further comprises a clamping element 14, 15 respectively, the liability 4 being arranged in the fastener 14.

Los directores 5 son catorce y comprenden una longitud de aproximadamente 122 mm, disponiéndose cuatro directores en el primer lado 6b, 7b de cada barra soporte 6, 7 y disponiéndose tres directores 5 en el segundo lado 6b, 7b de cada barra soporte 6, 7. En el primer lado 6b, 7b el primer director 5 está dispuesto a una distancia D1 de aproximadamente 95 mm del primer vértice 10, el siguiente director 5 a una distancia D2 de aproximadamente 170 mm del primer director 5, el siguiente director 5 a una distancia D3 de aproximadamente 60 mm del director 5 inmediatamente anterior, y el siguiente y último director 5 de dicho primer lado 6b, 7b a una distancia D4 de aproximadamente 70 mm del director 5 inmediatamente anterior. En el segundo lado 6c, 7c, el primer director 5 está dispuesto a una distancia D5 de aproximadamente 60 mm del segundo vértice 11, el siguiente director 5 a una distancia D6 de aproximadamente 85 mm del primer director 5, y el siguiente y último director 5 de dicho segundo lado 6c, 7c a una distancia D7 de aproximadamente 75 mm del director 5 inmediatamente anterior.Directors 5 are fourteen and comprise a length of approximately 122 mm, with four directors on the first side 6b, 7b of each support bar 6, 7 and disposing three directors 5 on the second side 6b, 7b of each support bar 6, 7. On the first side 6b, 7b the first director 5 is willing to a distance D1 of approximately 95 mm from the first vertex 10, the next director 5 at a distance D2 of approximately 170 mm from the first director 5, the next director 5 at a distance D3 approximately 60 mm from the director 5 immediately before, and the next and last director 5 of said first side 6b, 7b to a distance D4 of approximately 70 mm from director 5 immediately previous. On the second side 6c, 7c, the first director 5 is arranged at a distance D5 of approximately 60 mm from the second vertex 11, the next director 5 at a distance D6 of approximately 85 mm from the first director 5, and the next and last director 5 of said second side 6c, 7c at a distance D7 approximately 75 mm from the director 5 immediately before.

Así, se consigue obtener las características eléctricas requeridas de impedancia igual a 75 ohmios y una ganancia G de aproximadamente 15 decibelios durante un intervalo de frecuencias dentro de la banda de 470 MHz a 862 MHz, tal y como se muestra en la figura 4, en vez de un solo punto, comenzando dicha ganancia G generalmente en dicha banda a partir de aproximadamente 10 decibelios. Dicho intervalo se corresponde además con las frecuencias próximas al límite superior 862 MHz de dicha banda, que se corresponde aproximadamente con el intervalo reservado para las señales digitales.Thus, it is possible to obtain the characteristics electrical required impedance equal to 75 ohms and a G gain of approximately 15 decibels over a range of frequencies within the band of 470 MHz to 862 MHz, as shown in figure 4, instead of a single point, starting said G gain generally in said band from about 10 decibels This interval also corresponds to the frequencies close to the upper limit 862 MHz of said band, which corresponds approximately to the interval reserved for digital signals

Claims (5)

1. Antena para la recepción de TV digital terrestre, del tipo de dipolo simétrico e impedancia total 75 ohmios, comprendiendo un reflector (2), un dipolo (3) simétrico constituido por dos chapas (3a, 3b) en forma de "U" contrapuestas, un dispositivo pasivo (4) y una pluralidad de directores (5) sustancialmente iguales y paralelos entre sí, siendo dichos directores (5) catorce y estando distribuidos de igual manera sobre dos barras soporte (6, 7) en forma de "V" que constituyen un contorno con forma de punta de lanza con cuatro vértices (10, 11, 12, 13), siendo dichas barras soporte (6, 7) simétricas con respecto a la bisectriz del reflector (2),1. Antenna for digital TV reception terrestrial, of the symmetric dipole type and total impedance 75 ohms, comprising a reflector (2), a symmetric dipole (3) consisting of two plates (3a, 3b) in the form of "U" opposed, a passive device (4) and a plurality of directors (5) substantially equal and parallel to each other, being said directors (5) fourteen and being distributed equally on two support bars (6, 7) in the form of "V" that they constitute a spearhead-shaped contour with four vertices (10, 11, 12, 13), said bars being support (6, 7) symmetrical with respect to the reflector bisector (2), caracterizada porque characterized because el dipolo (3) está dispuesto a aproximadamente 185 mm del reflector (2) y a aproximadamente 19 mm de un primer vértice (10) del contorno dispuesto en la bisectriz de dicho reflector (2), siendo la distancia (Dp) entre las bases de las chapas (3a, 3b) de dicho dipolo (3) de aproximadamente 75 mm, siendo la anchura (Ac) de dichas chapas (3a, 3b) de aproximadamente 66 mm, y siendo la anchura total (At) de dicho dipolo (3) de aproximadamente 354 mm.the dipole (3) is arranged at approximately 185 mm from the reflector (2) and approximately 19 mm from a first vertex (10) of the contour arranged in the bisector of said reflector (2), the distance (Dp) being between the bases of the plates (3a, 3b) of said dipole (3) of approximately 75 mm, the width (Ac) of said plates (3a, 3b) being approximately 66 mm, and the total width (At) of said dipole (3) being approximately 354 mm 2. Antena según la reivindicación anterior, caracterizada porque un primer lado (6b, 7b) de cada barra soporte (6, 7) que converge en el primer vértice (10) del contorno comprende una longitud aproximadamente igual a 473 mm y un segundo lado (6c, 7c) de cada barra soporte (6, 7) que converge en un segundo vértice (11) del contorno comprende una longitud aproximadamente igual a 290 mm, estando dicho segundo vértice (11) dispuesto en la bisectriz del reflector (2) enfrentado a dicho primer vértice (10) y comprendiendo además dicha antena (1) un ángulo (a) entre dicho primer lado (6b, 7b) y dicho segundo lado (6c, 7c) de aproximadamente 140°.2. Antenna according to the preceding claim, characterized in that a first side (6b, 7b) of each support bar (6, 7) converging on the first vertex (10) of the contour comprises a length approximately equal to 473 mm and a second side (6c, 7c) of each support bar (6, 7) that converges on a second vertex (11) of the contour comprises a length approximately equal to 290 mm, said second vertex (11) being arranged on the bisector of the reflector (2) facing said first vertex (10) and further comprising said antenna (1) an angle (a) between said first side (6b, 7b) and said second side (6c, 7c) of approximately 140 °. 3. Antena según cualquiera de las reivindicaciones anteriores, caracterizada porque en el primer lado (6b, 7b) de cada barra soporte (6, 7) se disponen cuatro directores (5), estando el primer director (5) a una distancia (D1) de aproximadamente 95 mm de dicho primer vértice (10), el siguiente director (5) a una distancia (D2) de aproximadamente 170 mm del primer director (5), el siguiente director (5) a una distancia (D3) de aproximadamente 60 mm del director (5) inmediatamente anterior, y el siguiente y último director (5) de dichos primeros lados (6b) a una distancia (D4) de aproximadamente 70 mm del director (5) inmediatamente anterior, y porque en el segundo lado (6c, 7c) de cada barra soporte (6, 7) se disponen tres directores (5), estando el primer director (5) a una distancia (D5) de aproximadamente 60 mm de dicho segundo vértice (11), el siguiente director (5) a una distancia (D6) de aproximadamente 85 mm del primer director (5), y el siguiente y último director (5) de dichos segundos lados (6c) a una distancia (D7) de aproximadamente 75 mm del director (5) inmediatamente anterior.3. Antenna according to any of the preceding claims, characterized in that on the first side (6b, 7b) of each support bar (6, 7) four directors (5) are arranged, the first director (5) being at a distance (D1) ) of approximately 95 mm of said first vertex (10), the next director (5) at a distance (D2) of approximately 170 mm from the first director (5), the next director (5) at a distance (D3) of approximately 60 mm from the director (5) immediately before, and the next and last director (5) from said first sides (6b) at a distance (D4) of approximately 70 mm from the director (5) immediately before, and because on the second side (6c, 7c) of each support bar (6, 7) there are three directors (5), the first director (5) being at a distance (D5) of approximately 60 mm from said second vertex (11), the next director (5) at a distance (D6) of approximately 85 mm from the first director (5), and the next and last director (5) of di The second sides (6c) at a distance (D7) of approximately 75 mm from the director (5) immediately before. 4. Antena según cualquiera de las reivindicaciones anteriores, caracterizada porque los directores (5) comprenden una longitud de aproximadamente 122 mm.4. Antenna according to any of the preceding claims, characterized in that the directors (5) comprise a length of approximately 122 mm. 5. Antena según cualquiera de las reivindicaciones anteriores, caracterizada porque el dispositivo pasivo (4) está dispuesto en la bisectriz del reflector (2) a aproximadamente 70 mm del dipolo (3) y comprende una longitud de aproximadamente 149 mm.5. Antenna according to any of the preceding claims, characterized in that the passive device (4) is arranged in the reflector bisector (2) about 70 mm from the dipole (3) and comprises a length of approximately 149 mm.
ES200801260U 2008-06-13 2008-06-13 AERIAL FOR THE RECEPTION OF DIGITAL TERRESTRIAL TV Expired - Lifetime ES1068182Y (en)

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