ES1068581U - ANTENNA. - Google Patents

Abstract

1. Antenna, in particular to receive television, radio and / or data signals, with an impedance adapter circuit (15) and an amplifier circuit (16) that form a set and that the operation of the set corresponds in case of breakage of the amplification circuit (16) to the operation of the impedance adapter (15) and that the assembly works as an adapter circuit plus an amplifier circuit in the case of connection of the assembly to a power source. Characterized in that the amplifier circuit assembly (16) plus impedance adapter circuit (15) is made in a single or multi-layer circuit and with printed coils. 2. Antenna according to claim 1, characterized in that the power supply is made up of a system of solar cells. 3. Antenna according to any of the preceding claims, characterized in that the impedance adapter circuit (15) and the amplification circuit (16) are housed in a connection box (14). 4. Antenna according to claim number 3, characterized in that the connection box (14) incorporates a connector (145) for a direct or indirect connection with a television, sound broadcasting and / or data reception equipment. 5. Antenna according to claims number 4, characterized in that the connection box (14) and the connector (145) form a single piece. 6. Antenna according to one of claims 3 to 5, characterized in that the connection box (14) is shielded. 7. Antenna according to one of claims 3 to 6, characterized in that the connection box (14) is part of an assembly consisting of a dipole (13) and a support (19).

Description

Antenna.

The present invention relates to an antenna, in particular to receive television, radio and / or radio signals data according to the preamble of claim 1.

Various types of antennas are already known as It is reflected in Spanish patents 200002389, 200002388, 200002387, 200002386 property of the applicant.

The existing antennas currently in the market, have been developed for signal reception analog and / or digital. With the introduction of television high definition antennas are needed with some characteristics according to the new types of television signals. The objective of the present invention is to develop an antenna that allow characteristics according to the new types of signals Digital for high definition.

This objective is achieved with the defined antenna in the claims.

The invention has a plurality of advantages.

In an example of the Antenna according to the invention, The dipole consists of two pieces and each of the pieces It consists of a "U" shaped profile and a "V" shaped profile and both profiles are faced by its open part, and one of the profile profiles is contained in the inside of the other profile and both profiles are joined galvanically

This allows to obtain better ones antenna gain characteristics.

In another example of an antenna according to the invention, the Dipole is configured in more than one plane. This allows to increase the surface of the dipole without increasing its length, with that is able to maintain the response characteristics in antenna frequency

In another example of Antenna according to the invention, the Dipole consists of a flat profile. This allows to increase The antenna bandwidth.

In an example according to the invention the Antenna It has an impedance adapter circuit and a circuit amplifier that form a set and the operation of the set corresponds in case of amplification circuit breakage to the operation of the impedance adapter and the assembly works as an adapter circuit plus amplifier circuit in the case of connecting the assembly to a power supply and the amplifier circuit set plus adapter circuit is performed in a multilayer circuit with printed coils. This It has the advantage of minimizing space and increasing circuit reliability

In another example of an antenna according to the invention the Power supply consists of solar cells. This allows autonomous power supply of the amplifier circuit of the antenna without external sources.

In another antenna according to the invention according to the impedance adapter circuit and the amplification circuit is They house in a junction box.

In another example of Antenna according to the invention, the dipole is part of the set consisting of the dipole, a box of connections, which contains an impedance adapter circuit and / or an amplifier circuit, and a support. This presents the advantage of constituting a set within the antenna that can be replaced in case of breakdown keeping the rest of the structure of the antenna.

In another example of an antenna according to the invention, the connection box incorporates a connector for direct connection or indirect with a television reception team, of sound and / or data broadcasting. This allows a better adaptation between reception equipment and antenna avoiding reflection effects on the signals.

In another example of Antenna according to the invention, the box and connector form a single piece. This allows a better radio shielding avoiding the influence of signals spurious

In another example of Antenna according to the invention the box is shielded. This prevents the influence of parasitic noises that can be introduced into the adapter circuit and the circuit amplifier, degrading the quality of the received signal.

In another example of Antenna according to the invention the junction box is made of metallic material and is connected to mass. This feature improves the interconnection of the elements antenna and increases the radio shielding by providing the box and to the connector of the same reference ground.

In an example according to the invention, the Antenna it comprises at least one dipole and an armor formed by three bars coplanar, one main and two secondary, one superior and a lower one; arranging the bars of a plurality of rods that constitute director elements and an element parasite; running the side bars slightly oblique with respect to the central bar; and being the divergent bars with respect to the central bar on one side and converging on the side opposite, being characterized because on the divergent side of the bars the upper secondary bar protrudes longitudinally of the central bar and the lower secondary bar is reduced longitudinally with respect to the central bar. This presents the advantage of raising the main radiation lobe of the antenna avoiding earth reflections.

In another example of an antenna according to the invention the upper secondary bar has a greater number of directors that the other two bars and the lower secondary bar have fewer directors than the other two.

This has the advantage of increasing profit of the antenna in a certain direction.

In another example of Antenna according to the invention the center bar has at least one parasitic element. This it has the advantage of increasing the dipole bandwidth and in consequently the antenna bandwidth.

In another example of the Antenna according to the invention the impedance adapter circuit and the amplification circuit they form a set and the operation of the set corresponds to case of the breakdown of the amplification circuit to the operation of the impedance adapter circuit. This allows before any incident on the antenna that affects the devices that make up the amplifier circuit, the antenna keep the own gain levels of the antenna without amplification, allowing the reception of signals that reach the antenna with power levels equal to those required by other antennas without amplification.

In another example of the Antenna according to the invention, the assembly formed by the impedance adapter circuit and the amplification circuit works as an adapter plus amplifier in the case of connection of the set with a power supply. This allows the antenna to provide an additional gain supplied by the amplifier so that the reception of signals that reach the antenna with a very low level of power.

In another example of the Antenna according to the invention, the assembly formed by the impedance adapter circuit and the amplification circuit works as an adapter in the case of non-connection of the set with the source of feeding. This allows in the event that the signals that they reach the antenna have sufficient power levels to its reception is not amplified by the amplification circuit avoiding possible intermodulation problems between channels

For a better understanding of the invention, describes by way of non-limiting example an antenna according to the invention based on the drawings listed below:

Figure 1 is a perspective view of a antenna constituted according to the invention.

Figure 2 is a perspective view of the anterior and posterior radomes according to the antenna of the invention.

Figure 3 shows in detail the dipole of the antenna according to the invention.

Figure 4 shows the junction box and the support piece of said junction box according to the invention.

Figure 5 shows a circuit diagram of adaptation and amplification electrical circuit according to the antenna of the invention.

As can well be seen in Figure 1 The antenna comprises an armor that is formed by three bars, a main central 1 and two secondary, upper 2 and lower 3. Said bars 1, 2 and 3 are generally of different length. The three bars are coplanar, running the secondary bars 2 and 3 slightly oblique with respect to the central bar 1, the divergent bars 2 and 3 with respect to the central bar 1 on the one hand and converging on the opposite side. On the divergent side of the bars the upper secondary bar 2 protrudes longitudinally of the central bar 1 and the lower secondary bar 3 is longitudinally reduced with respect to the central bar 1, forming the antenna a step structure.

The three bars are made up of profiles preferably aluminum tubular. On the divergent side the three bars 1,2 and 3 cross a previous radome 5 and on the side convergent the three bars 1, 2 and 3 are introduced in a radome rear 4. The center bar 1 crosses the rear radome 4 in a portion of bar on which a support 8 is mounted on which a reflector is held 6.

Bars 1, 2 and 3 have a plurality of 7 equal rods mounted along the structure in direction perpendicular to the plane defined by said bars. These rods 7 constitute the director elements 71 and the element 72 parasite of the antenna. The guiding elements 71 are the responsible for directing the received signal to the active element of the antenna (dipole). The parasitic element 72 increases the width of band of the active element (dipole) and consequently of the antenna The upper secondary bar has a greater number of directors 71, with the lower secondary bar 3 having of a smaller number of directors 71. Central Bar 1 has in addition to the directors 71, of a parasitic element 72.

Bars 1, 2 and 3 are physically linked in its back by means of a back radome 4 and in its part media through a previous radome 5.

The reflector 6 is constituted by two panels 9 and 10 of rods 11 placed obliquely with respect to the central bar 1 on the support 8. Said rods 11 are arranged in its corners of corners 12 that join them together. These rods 11 pass through bars 111 that fix the reflector to the support 8.

In the posterior radome 4 there is a dipole 13 and the one connection box 14 where an adapter circuit is housed impedances 15 and an amplification circuit 16 (see figure 4).

The antenna is fixed to a vertical mast 17 by an auxiliary clamp 18 at the free end of the center bar 1.

As can be seen in Figure 2 the antenna it consists of a posterior radome 4 and an anterior radaome 5, the rear radome 4 constituted by cover caps 41 and 42 trapezoidal closing on bars 1, 2 and 3 of the antenna structure, through openings 43 in its anterior part.  The cover 41 has through holes 45 facing stems 46 arranged in the other cover 42. In said stems They house closing screws of covers 41 and 42. Caps 41 and 42, they have holes 47 that extend into perforated stems 48 through which the rods 7 corresponding to the sections of bars 1, 2 and 3 (Figure 1) cross the posterior radome 4.

Also, the rear radome 4 has a cavity 49 in its lower zone in which the assembly is housed formed by dipole 13, junction box 14 and support 19 (see figure 4). The rear radome 4 has two bolts 491 for anchoring said assembly.

The previous radome 5 is constituted by paths covers 51 and 52 that close on bars 1,2 and 3 of the structure through openings 53 in its front part and openings 54 on its back. Cap 51 has through holes 55 facing threaded stems 56 arranged in the other cover 52. In said threaded rods 56 are accommodated screws of closures of caps 51 and 52. Caps 51 and 52 have holes 57 that extend into perforated stems 58 through which the rods 7 corresponding to the bar sections 1, 2 and 3 (Figure 1) cross the anterior radome 5.

Figure 3 shows in detail the dipole 13 of the antenna which consists of two pieces 131. Each of the pieces 131 is constituted by a profile 132 in the form of "U" and a "V" shaped profile 133 facing both on the other hand, the profile 133 being contained inside of profile 132 and galvanically connected to it at two points of connection 134. Profile 132 has a fin 135 at its base Said fin 135 has at least one hole 136 for the dipole connection. In addition, profile 132 has a perforation 137 for securing dipole 13 to pivot 197 of support element 19 (see figure 4).

In Figure 4, the box of connections 14 which is attached to a support 19. Box 14 is constituted by a rectangular body or base 141 and a cover 142 that They close by pressure. The base 141 has inside bolts 143 on which an electronic circuit is placed, generally the amplification circuit 16, also has two holes 144 which face two pivots 191 belonging to the support 19. These pivots 191 have internal holes through which a piece of connection 196 establishing the electrical connection between the dipole 13 and the amplification circuit 16 housed in the box connections 14 and serving at the same time holding the box connections 14 to support 19. Connection box 14 also has at its base 141 of a connector 145 constituting the element of antenna connection.

The cover 142 has two of its walls side flanges 146 which make contact galvanized with the central bar 1 once the dipole assembly is mounted 13, junction box 14 and bracket 19 in radome cavity 49 back 4. This galvanic contact makes the grounding of the connection box 14 optimizing its shielding.

As shown in Figure 4, support 19 of the junction box 14 is constituted by a bowl 192 topped on one of its walls by two 193 arms that extend longitudinally. Inside the bowl 192 has two separate pivots 191 holding the case 14 and a hole 194 through from which connector 145 of the junction box 14 comes. side walls the bowl 192 has holes 195 where bolts 491 of the posterior radome 4 (figure 2) penetrate to the anchoring of the support 19 to the rear radome 4.

The bowl 192 is extended in two arms 193 in each of which one of the two pieces 131 is located which make up the dipole 13. These pieces 131 have holes 173 in which the pivots 197 are introduced for securing said parts to the arms 193 of the support 19.

The dipole assembly 13, junction box 14, and support 19 is located in cavity 49 of the posterior radome 4, fixing to said rear radome 4 by bolts 491 and the holes 195 of the holder 19.

Figure 5 shows the circuit scheme 15 adapter and 16 amplifier electrical circuit which form a set made in multilayer technology being the coils printed on the circuit itself, thus minimizing the space used and increasing the reliability of the circuit.

The adapter circuit is composed of the J1 printed line.

The amplifier circuit is composed of a high pass filter consisting of capacitors C1 and C2 and the L2 and L3 coils, for a low pass filter composed of capacitors C15 and C16 and coils L4, L5 and L6, a stage of amplification composed of transistor T1 and its circuit polarization formed by resistors R1, R2, R3, R6, R17 and R18, the capacitors C3, C4, C8 and C12 and the coils L1, and CH1, a high pass output filter formed by capacitors C10 and C14 and the coil L9. Also the amplifier has a circuit of step, a blocking circuit and a regulating circuit of stream.

The step circuit allows the signal to pass through the entrance to the exit in the absence of power and is formed by varicap diode D5, diodes D1 and D2, the capacitors C7 and C9, resistors R5, R8, R15 and R16 and the printed lines L7 and L8.

The blocking circuit prevents, in the case of no power, the signal passing from the circuit step to the amplifier and allows, in the case of presence of power, the signal step from the amplification stage towards the outlet filter. It is composed of diode D4, the capacitors C5 and C11, coils CH3 and CH5 and resistors R9 and R14.

The current regulator circuit allows the device power with multiple voltages and is composed of transistors T2, T3, T4 and T5, the resistors R4, R7, R10, R11, R12 and R12, C6 capacitors and coil CH6.

List of references

one.-

Main center bar

2.-

Upper secondary bar

3.-

Lower secondary bar

4.-

Posterior radome

5.-

Previous radome

6.-

Reflector

7.-

Rods

8.-

Support

9.-

Reflector panel

10.-

Reflector panel

eleven.-

Rods

111.-

Reflector Bars

12.-

Cantoneras

13.-

Dipole

14.-

Connections Box

fifteen.-

Impedance adapter circuit

16.-

Amplification circuit

17.-

Vertical mast

18.-

Auxiliary clamp

19.-

Support piece

41.-

Radome back cover

42.-

Radome back cover

43.-

Openings

Four. Five.-

Through holes

46.-

Stems

47.-

Holes

48.-

Perforated stems

49.-

Cavity

fifty.-

Anchor bolts

51.-

Radome lid anterior

52.-

Radome lid anterior

53.-

Openings

54.-

Openings

55.-

Through holes

56.-

Threaded stems

57.-

Holes

58.-

Perforated stems

131.-

Dipole Parts

132.-

"U" Profile

133.-

"V" Profile

134.-

Connection points

135.-

Fin

136.-

Drilling

137.-

Drilling

141.-

Rectangular body or base

142.-

Top

143.-

Bolts

144.-

Holes

145.-

Connector

191.-

Pivots

192.-

Bowl

193.-

arms

194.-

Orifice

195.-

Holes

196.-

Connecting piece

197.-

Pivots

Claims (7)

1. Antenna, in particular to receive signals from television, radio and / or data, with an adapter circuit of impedance (15) and an amplifier circuit (16) that form a set and that the operation of the set corresponds in case of breakage of the amplification circuit (16) to the operation of the impedance adapter (15) and that the set works as adapter circuit plus amplifier circuit in case of connection from the set to a power supply. Characterized in that the amplifier circuit assembly (16) plus impedance adapter circuit (15) is made in a circuit of one or several layers and with printed coils. 2. Antenna according to claim 1, characterized in that the power supply is constituted by a solar cell system 3. Antenna according to any of the preceding claims, characterized in that the impedance adapter circuit (15) and the amplification circuit (16) are housed in a junction box (14). 4. Antenna according to claim number 3, characterized in that the connection box (14) incorporates a connector (145) for a direct or indirect connection with a television reception, sound and / or data broadcasting equipment. 5. Antenna according to claims number 4, characterized in that the junction box (14) and the connector (145) form a single piece. 6. Antenna according to one of claims 3 to 5, characterized in that the junction box (14) is shielded. 7. Antenna according to one of claims 3 to 6, characterized in that the junction box (14) is part of an assembly consisting of a dipole (13) and a support (19).