SE0950810A1 - Mobile unit - Google Patents

Abstract

The invention provides a housing element for a mobile unit. The mobile unit comprises at least one antenna radiator arranged to be molded together with a single conductive part belonging to the housing element, said antenna radiator being a single antenna radiator of metal integrated in an antenna. The antenna comprises at least a first film. The housing element comprises the antenna and the non-conductive part. Said antenna radiator is arranged to be applied to the first film via a conductive means located between said antenna radiator and the first arm. The antenna is arranged to be molded together with the non-conductive part. The invention also provides a corresponding method for manufacturing the housing element and a mobile unit comprising the housing element. The invention also provides an antenna for a mobile device. The antenna comprises at least one antenna radiator, said antenna radiator being a metal antenna radiator integrated in an antenna comprising at least one first film. Said antenna radiator is arranged to be applied to the first arm via a conductive means located between said antenna radiator and the first arm. Figure 3 is to be used.

Description

The flex film on the cover will result in problems with positioning accuracy as well as visual and cost problems. The flex film typically includes a polyimide plastic substrate. This makes the flex film difficult to stretch, which means that the flex film is unsuitable for use in a forming process.

Thus, there is a need for a solution to provide a cover with improved decorative pressure capabilities and with an integrated antenna, as well as the antenna itself applied to a carrier with improved decorative pressure capabilities where antenna performance is improved, especially at low frequencies, for to allow multi-band use and where the appearance of the outer surface of the cover is improved.

SUMMARY The object of the invention is to reduce at least some of the mentioned shortcomings with solutions according to prior art and to offer: o a housing element for a mobile unit o a method for manufacturing the housing element o an antenna integrated with at least a first fi lm o a mobile unit comprising the housing element for solve the problem of achieving an improved antenna performance especially at low frequencies, to allow multi-band use and to achieve an improved appearance of the outer surface of the housing element as well as improved possibilities for decorative printing.

The purpose is achieved by offering a housing element to a mobile unit.

The mobile unit comprises radio frequency circuits and at least one antenna radiator arranged to be molded together with a non-conductive part belonging to the housing element, said antenna radiator being an antenna radiator of metal integrated in an antenna. The antenna comprises at least a first film.

The housing element comprises the antenna and the non-conductive part. Said antenna radiator is arranged to be applied to the first film via a conductive means located between said antenna radiator and the first film.

The antenna is arranged to be co-molded with the non-conductive part. At least one hole is provided in the non-conductive part to allow contact between said antenna radiator and the radio frequency circuits.

The object is further achieved by a method of manufacturing a housing element for a mobile unit. The mobile unit comprises radio frequency circuits and at least one antenna radiator molded with the housing element where: metal is used to realize said antenna radiator, said antenna radiator is integrated in an antenna comprising at least a first fi lm, the housing element comprising the antenna and the non-conductive part, via a conductive means located between said antenna radiator and the first film, o the antenna is merged with the non-conductive part and o at least one hole is provided in the non-conductive part to allow said antenna radiator and contact between the radio frequency circuits.

The purpose is further achieved by an antenna for a mobile device. The antenna comprises at least one antenna radiator and the mobile unit comprises radio frequency circuits, said antenna radiator being a metal antenna radiator integrated in an antenna comprising at least a first film. Said antenna radiator is arranged to be applied to the first film via a conductive means located between said antenna radiator and the first film. The object is further achieved by offering a mobile unit comprising a housing element according to any one of claims 1-17.

In an example of the housing element, said antenna radiator is made of a metal with good conductivity.

In an example of the housing element, said antenna radiator is made of gold or silver or copper or aluminum or platinum or a combination of metals. In one example, said housing element is at least a part of an outer cover of the mobile unit. In one example, said housing element is a back cover of a mobile telephone. In an example of the housing element, said one or more holes in the non-conductive part are filled / filled with a conductive material so that the conductive filling is substantially level with an inner surface belonging to the housing element.

In an example of the housing element, the conductive filling is conductive adhesive. In an example of the casing element, the first film has a decorative print applied to a top surface belonging to the first elm.

In an example of the housing element, the first film has a number of sublayers and decorative print is applied to at least one top surface and / or at least one bottom surface belonging to a sublayer, the top surface being the surface closest to the outside of the mobile unit and the bottom surface forming the surface closest to the interior of the mobile unit .

In an example of the housing element, the sublayers comprise at least one adhesive sublayer and / or at least one technical sublayer. In an example of the housing element, the antenna comprises a second film with a decorative print, the first film with said antenna radiator and position marks.

In an example of the housing element, the second film has a number of sublayers and decorative print is applied to at least one top surface and / or at least one bottom surface belonging to a sublayer, the top surface forming the surface closest to the outside of the mobile unit and the bottom surface forming the surface closest to the mobile unit .

In an example of the housing element, the sublayers comprise at least one adhesive sublayer and / or at least one technical sublayer.

In an example of the housing element, the first film, the second film and the sublayers are transparent or non-transparent or a combination of transparent and non-transparent films and sublayers within an antenna.

In an example of the housing element, the non-conductive part has a first hole and a second hole where the first hole is arranged for RF connection and the second hole is arranged for connection to earth.

In an example of the housing element, the antenna comprises one or more antenna radiators of metal.

In an example of the cover element, the top surface belonging to the first film and / or the second film comprises a protective layer.

In an example of the method of manufacturing the housing element, the method comprises: o printing the antenna radiator pattern and position marks, using a conductive means, on one of the surfaces belonging to the first film or one of the surfaces belonging to a sublayer, o applying metal on the antenna radiator pattern, o applying decorative pressure on at least one surface belonging to the first film and / or its sublayers, o hardening the printing of the antenna radiator pattern, position marks and the decorative pressure, o punching holes at the position marks, o deforming a production sheet, a reduced production sheet or an antenna element by inserting into a preforming tool, the production sheet and reduced production sheet comprising a number of antenna elements, o cutting the area of the antenna element outside a contour boundary including the position marks and o merging the antenna with the non-conductive part thus realizing the housing element.

In an example of the method, a coarse cutting operation is added where the production sheet is cut into smaller pieces and / or a contacting step, in the contacting step the holes in the non-conductive part are filled with a conductive material.

In an example of the method, the method comprises: o printing the antenna radiator pattern and position marks, using a conductive means, on one of the surfaces belonging to the first element or one of the surfaces belonging to a sublayer, o applying metal to the antenna radiator pattern, o covering it bottom surface of the first film with an adhesive layer and application of decorative print to at least one surface of a second film and its sublayers, curing of the printing of the antenna radiator pattern, position marks and decorative print, and lamination of the two the films o punching holes at the position marks, o preforming a production sheet, a reduced production sheet or an antenna element by inserting into a preforming tool, the production sheet and the reduced production sheet comprising a number of antenna elements, o cutting the area of the antenna element outside a contour boundary and o merging (808) of the antenna with the non l part thus realizing the casing element. In an example of the method, a coarse cutting operation is added where the production sheet is cut into smaller pieces and / or a contacting step, in the contacting step the holes in the non-conductive part are filled with a conductive material. In an example of the antenna, the first film has a decorative print applied to a top surface belonging to the first film.

In an example of the antenna, the first film has a number of sublayers and in that decorative pressure is applied to at least one top surface and / or at least one bottom surface belonging to a sublayer, the top surface constituting the surface closest to the outside of the mobile unit and the bottom surface constituting the surface nearest the interior of the mobile device. In an example of the antenna, the sublayers comprise at least one adhesive sublayer and / or at least one technical sublayer. In an example of the antenna, the antenna comprises a second film with a decorative print, the first film with said antenna radiator and position marks.

In an example of the antenna, the second film has a number of sublayers and decorative print is applied to at least one top surface and / or at least one bottom surface belonging to a sublayer, the top surface being the surface closest to the outside of the mobile unit and the bottom surface forming the surface closest to the mobile unit .

In an example of the antenna, the sublayers comprise at least one adhesive sublayer and / or at least one technical sublayer.

In an example of the antenna, the first film, the second film and the sublayers are transparent or non-transparent or a combination of transparent and non-transparent films and sublayers within an antenna.

In an example of the antenna, said antenna radiator has two connections, one for connecting said antenna radiator to the radio frequency circuits, the RF circuits, belonging to the mobile unit and one for connection to a ground belonging to the mobile unit, the connections are arranged through said holes in the non-conductive part.

In an example of the antenna, the antenna comprises one or more antenna radiators of metal.

In an example of the antenna, at least one of said antenna radiators is a PIFA and / or a patch antenna radiator.

In an example of the antenna, said antenna radiator is made of a metal with good conductivity. In an example of the antenna, said antenna radiator is made of gold or silver or copper or aluminum or platinum or a combination of metals.

The invention integrates the antenna in the housing element belonging to the mobile unit.

This saves space in the interior of the mobile unit where the antenna is located in many of today's known solutions. The invention also provides a solution for providing contact plates to the antenna radiator used to connect the antenna radiator to the radio frequency circuits of the mobile unit. By locating the antenna radiator near the outside of the mobile unit, as far away as possible from the electronic parts of the mobile unit, the standard ln Mold Label (IML) can be improved, which improves stability and antenna performance. A manufacturing process that can be used means cost-effective manufacturing with a high yield.

Antenna performance is further improved by the fact that the antenna radiator is made of metal.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 schematically illustrates an example of a mobile unit.

Figure 2 schematically illustrates a side view of a housing element realized in a single version of the invention.

Figure 3 shows schematically in a partial exploded view in perspective view an example of the first film with decorative print, conductive means, antenna radiator and position marks (single film version) Figure 4 schematically illustrates in a partial exploded view in perspective view an example of the first film with five sublayers (single film version). Figure 5 schematically illustrates a side view of a housing element realized in a two-film version of the invention.

Figure 6 schematically shows an example of a two-film version of the invention in a partial exploded view in perspective view.

Figure 7 schematically illustrates in a partial exploded view in perspective view an example of a two-film version of the invention, with the first film with space for an antenna radiator and a second film with decorative print on three sublayers.

Figure 8 is a block diagram of an example of the manufacturing method for the single film version of the invention.

Figure 9 schematically illustrates a production sheet with a number of antennas.

Figure 10 is a block diagram of an example of the manufacturing method for the two-film version of the invention.

Figure 11 is a partial exploded perspective view of a single film version of the invention with the housing element constituting a rear cover of an outer cover of a mobile telephone.

Figure 12 is a partial exploded perspective view of a two-film version of the invention with the housing element constituting a rear cover of an outer cover of a mobile telephone.

DETAILED DESCRIPTION The invention will now be described with reference to the accompanying drawings.

The dimensions in the drawings are not to scale and ratios in dimensions between parts of the drawings have been chosen to improve clarity. The invention comprises a housing element with an integrated antenna for a mobile unit defined as a portable communication and / or computer unit.

The mobile device can e.g. be it a mobile phone, a handheld computer, a laptop, a PDA (Personal Digital Assistant) or any other mobile device with an integrated antenna. The housing element is integrated with the mobile unit and can also include a decorative print. In a preferred example of the invention, the housing element may comprise at least a part of an outer cover of the mobile unit. The housing element can e.g. be a back cover for a cell phone.

Figure 1 shows a mobile unit 101, exemplified by a mobile telephone, comprising a control unit 107 configured to control communication with a mobile communication system 103. A keyboard 113, a display 115 and radio frequency (RF) circuits 109 are connected to the control unit 107 which together with an antenna 111 are arranged to establish a radio interface 105 for communication with the mobile communication system 103. The mobile unit also normally comprises at least one ground plane. A common feature of the mobile units is that an antenna radiator is connected to the RF circuits which in turn are connected to additional electronic components and the antenna can, if desired, also be connected to the ground plane.

Radio frequency (RF) is a frequency of electromagnetic radiation below 300 GHz, i.e. it includes e.g. frequencies for radio, TV and all types of radio communication such as GSM (Global System for Mobile communication) and UMTS (Universal Mobile Telecommunication System).

The housing element of the invention comprises a non-conductive part molded together with an antenna. The antenna comprises at least one film made of e.g. a non-conductive material such as plastic materials such as PolyCarbonate (PC), Acrylonitrile Butadiene Styrene (ABS) and Poly Ethylene Terephthalate (PET). The film can be transparent or non-transparent. The invention can be realized in two 10 15 20 25 30 12 main versions, a single-film version and a two-film version. In the single film version, at least one antenna radiator is applied to a surface belonging to a first film and a decorative print is preferably applied to the opposite surface of the first film, or the same surface of the first film. The alternative two-strip version comprises two films where the optional decorative pressure is applied to a second film and said, at least one, antenna radiator is applied to the first film. The antenna, common to both main versions of the invention, comprises at least the first element with said, at least one, antenna radiator applied. In the two-film version, the antenna also includes the second film. In both the single and double film versions, a metal layer is added over a conductive agent applied to the first film. The conductive agent can be of different types but should be a material with a reasonable conductivity, such as conductive ink (silver ink). The conductive agent can be applied by e.g. printing. In the two-film version, the first and second films are laminated together. In the two-film version, there are two separate manufacturing processes, one for the decorative printing on the second film and one for the application of the metal antenna radiator to the first film.

An electrolytically manufactured or laminated metal pattern has conductivity and a smoother surface than a pattern of conductive inks. The higher higher conductivity leads to better RF properties when a metal pattern instead of conductive ink is used as a radiator, resulting in improved antenna performance, especially at low GSM frequencies. This is an advantage of the invention and an advantage that is common to both Metals has conductivity compared to other conductive substances. The provided main versions of the invention. better and unchanging surface smoothness of the metal radiator improves the performance of the metal radiator due to the known fact that the currents of the antenna radiator primarily use only the top surface of the metal radiators. An antenna radiator using conductive ink changes its conductivity when the injection pressure changes. Variations in the injection pressure thus lead to variations in conductivity, which reduces the yield or statistical quality of the antenna radiator using conductive inks.

The thickness of the metal radiator is typically about 10 micrometers (10 μm) for GSM frequencies but can also be thicker or thinner depending on the actual frequency, choice of metal or combinations of metal and the required performance. Normally, the thickness of the radiator is within a range of 1-20 micrometers (1-20 μm). However, the inventive concept does not limit the use of a radiator thickness also outside this range. A thicker layer generally gives better performance, but higher costs and lower frequencies require a thicker radiator than higher frequencies.

Since antenna performance is improved at low frequencies compared to the prior art, the antenna can e.g. in one example of the invention is constructed using an antenna radiator to cover low GSM frequencies, about 850 MHz, and high GSM frequencies around 1800-1900 MHz as well as UMTS frequencies around 2 GHz. In a further example, an antenna radiator may cover high and low GSM frequencies. The antenna can use one or ant your antenna radiators, each radiator covering a certain frequency band or fl your frequency bands or combination of frequency bands which, in addition to GSM and UMTS, are used for Near Field Communication (NFC) / RFID (Radio Frequency Identification), FM radio, DVB- H (Digital Video Broadcasting- Handheld) used for TV, Bluetooth, WLAN (Wireless Local Area Network), Wimax, UWB (Ultra Wideband), GPS (Global Positioning System) and LTE (Long Term Evolution). However, the gain concept is not limited to antennas used at certain frequencies, but can also be used for antennas used at other frequencies than those mentioned above.

A further advantage of both main versions is that in combination with improved conductivity of the radiator there are also no visible marks from a carrier to the antenna radiator, since the antenna radiator is either on the same strip as the decorative print (the strip version) or the film with the antenna radiator and the film with the decorative print have the same size and mainly cover the complete outer surface area of the housing element (the two-film version). The outer surface belonging to the housing element is defined as the surface of the housing element located closest to the outside of the mobile unit and the inner surface is defined as the surface closest to the interior of the mobile unit. In a preferred example of the invention when the housing element comprises at least a part of the outer cover belonging to the mobile unit, the outer surface belonging to the housing element is also the outer surface belonging to the outer cover of the mobile unit.

The invention also comprises a method for manufacturing the housing element using IML technology and the housing element and also an antenna manufactured according to the method. The invention further comprises a mobile unit provided with the housing element.

Figure 2 is a side view of a housing element in an example of the single film version of the invention. In this example, the housing element 201 is the rear cover belonging to a mobile unit. However, the housing element can also be an inner part of the mobile unit or another part of the outer cover belonging to the mobile unit.

The housing element comprises a non-conductive part 202 with at least one hole 206 and an antenna 209 with a first mlm 203 comprising a decorative pressure 204 and an antenna radiator 205.

The decorative print 204 is applied to a top surface 207 belonging to the first film, with e.g. ink printing, screen printing, spray painting or an NCVM (Non Conductive Vacuum Metallization) layer. The decorative print can also be applied to a bottom surface 208 of the first film.

The first film may also have several sublayers which will be described later. The uppermost surface belonging to a film or sublayer is defined as the surface closest to the outside of the mobile unit while the lower surface is the surface closest to the interior of the mobile unit. The first film may or may not be transparent. The thickness of the first film can vary, inter alia depending on the number of sublayers, between 0.01 - 0.9 mm, preferably within 0.1 - 0.3 mm and most preferably within 0.01 - 0, 1 mm. The decorative print can be made on the bottom or top surface of any of these sublayers. The first film and its sublayers can be made of plastics such as PC, ABS or PET.

The first film may, if desired, also include an environmental protective layer on the top surface. The decorative print normally covers most of the top or bottom surface of the first film or most of the top or bottom of one of the sublayers included in the first film.

A conductive agent is applied to the bottom surface of the first film or the bottom surface of one of the sublayers. The conductive agent can be applied with e.g. printing. The surface covered by the conductive means corresponds to the antenna radiator pattern and position marks. The position marks are located near the edges of the first elm. A metal bearing, e.g. of copper, including the antenna radiator 205, is then applied over the surface of the conductive element in addition to the surface of the position marks, by using an electrolytic process, such as electroplating. An etching or laser process can be used to remove parts of the metal layer if the surface of the conductive means is larger than the final radiator pattern e.g. if a tuning of the antenna is desired. The antenna radiator can also consist of a punched metal part which is applied to the conductive means. An antenna radiator of metal with good conductivity, and position marks comprising only the conductive means, is thus applied to the bottom surface belonging to the first film or the bottom surface belonging to any of the sublayers.

The metal can e.g. consists of gold or silver or copper or aluminum or platinum or a combination of metals. The antenna radiator can thus be included in an intermediate layer on the first film. Since the decorative pressure is normally applied to a surface closer to the outer surface of the housing element than the surface where the antenna radiator is applied, the antenna radiator will be covered by the decorative pressure and will not be visible from the outside. Accordingly, an antenna is provided including the first film, the decorative pressure and the antenna radiator. When the antenna is applied to an inner housing element, the decorative pressure can be omitted.

An adhesive layer may preferably be applied to the lower surface 208 of the first film or the lower surface of the sublayer closest to the interior of the mobile unit to provide better application to the plastic raw material used for the non-conductive portion 202.

One or more contact plates for the antenna radiator, which are used to connect the antenna radiator to e.g. a printed circuit board (PCB) belonging to the mobile unit, is provided by using a conductive material such as conductive adhesive which is inserted into holes 206 in the non-conductive part 202 of the housing element 201, the holes being located in positions in line with a suitable contact point or suitable contact points on the antenna radiator. Figure 2 illustrates a solution with a heel 206. The hole or holes in the housing element are filled with the conductive material as conductive adhesive so that the conductive filling becomes substantially flush with the inner surface of the housing element. A conventional contact such as a resilient contact pin (pogo pin) can be used to arrange the contact between the conductive plate or plates and the mobile unit circuit board (PCB). A non-galvanic connection, such as a capacitive coupling, can also be used for contacting between the conductive plate or plates and the circuit board (PCB). In a further example of the invention, one or more holes are open, i.e. not filled with the electronic components can then be arranged on any conventional conductive filling. The contacting of the mobile device by galvanic or non-galvanic means.

An advantage of the single film solution is that it allows a very thin solution because the first film is used to accommodate both the decorative pressure and the antenna radiator. Figure 3 shows the first film 301 realized with a transparent film. The first film has a decorative print, in this case a wave pattern on a colored background applied to the top surface 302 of the first film.

The colored background is not displayed for clarity. On the lower surface 303, in the surface facing the reader, the antenna radiator 304 is applied to the conductive means 305. The antenna radiator may be of any type of Inverted F Antenna (PIFA) or a patch.

Position marks 306 are located near the edges of the first elm. such as e.g. one, Planar The position marks are printed with the conductive agent on either the top or bottom surface of the first film. These marks are used to position the antenna in a preforming tool which will be further explained in connection with Figures 8 and 10. A rectangular boundary line 307 represents the contour of the final shape of the first film when inserted into a shape for integration with the non-conductive part of the housing member.

The shape of the boundary line is adapted to the desired shape of the housing element and does not have to be rectangular.

Figure 4 shows the first element 401 in a partial exploded view in perspective view realized with 5 sublayers, 402-406. The top surface 407 of the first elm, which is also the top surface of the first sublayer 402, has in this example a decorative print comprising a color covering the total top surface 407. The color is not shown for clarity. The upper surface of the second sublayer 403 has a decorative print comprising a wave pattern and the upper surface of the third sublayer 404 has a decorative print comprising an elliptical pattern. The decorative print can also be applied to the bottom surface belonging to each sublayer. The top and bottom surfaces of a sublayer are defined in analogy to the definition of the top and bottom surfaces of a film, i.e. the top surface is defined as the surface closest to the outside of the mobile unit while the bottom surface is the surface closest to the interior of the mobile unit. In the example according to Figure 4, the decorative print is thus applied to at least one upper surface and / or at least one lower surface belonging to a partial layer. The fourth sublayer 405 in the example according to Figure 4 may be a technical sublayer which can be used for various reasons such as bonding layers together, adding mechanical strength or chemical resistance. When viewed from the outside of the mobile unit, the technical sub-layer can also shade sub-layers, which are closer to the interior of the mobile unit or offer a calm background for sub-layers with decorative print that is closer to the outside of the mobile unit. The shading can be done, for example, by covering the technical part layer with a black color. The fifth sublayer 406 is used to apply the conductive means 408 to the bottom surface of the fifth sublayer. The antenna radiator 409 is then applied to the conductive means. The position marks 410 can be printed on the lower or upper surface of the fifth sublayer using the conductive means. An additional adhesive sublayer may be applied to the lower surface of the fifth sublayer to improve the adhesion to the non-conductive member 202. Adhesive sublayers may also be inserted between the top and bottom sublayers to improve the joining between layers.

The first film 401 may, if desired, also include an environmental protective layer on the top surface 407.

In this example, the sublayers are transparent. They can also be non-transparent. In this example, it will not be possible to see the antenna radiator from the outside of the mobile unit because the decorative pressure on the first sublayer will obscure transparency. In the example according to Figure 4, there are five sub-layers. However, the number of sublayers may be more than five layers, typically 10-20 sublayers, including one or more technical sublayers and adhesive layers, as well as additional layers of decorative printing and the protective layer. The sub-bearings can thus include at least one adhesive sub-bearing and / or at least one technical sub-bearing. The invention is not limited to a certain number of sublayers as long as the thickness of the film is within the above-mentioned range.

The rectangular boundary line 411 represents the contour of the final shape of the first film when it is inserted into a shape for integration with the non-conductive part of the housing element. The boundary line can also have other shapes e.g. with curved side edges adapted e.g. to the shape of the back cover of a mobile device, such as a mobile phone.

The antenna element 400 is thus provided including the first film 401, with its sublayers and decorative prints, and the antenna radiator 409 applied with the conductive means 408. The portion of the antenna element within the rectangular boundary line is the antenna itself for use in the mobile unit.

Figure 5 is a side view of a housing element in an example of the two-film version of the invention. In this example, the housing member 501 is a mobile unit back cover. However, the housing element can also be an inner part of the mobile unit or another part of the outer cover of the mobile unit. The housing element comprises the non-conductive part 502 with the hole 504, the first film 503 and a second film 505. For the sake of clarity, the second elm is separated by a small gap 506 from the first elm. In the manufacturing process, which will be described in connection with Figures 8 and 10, the two films are laminated together and the gap 506 consequently disappears. The difference from the single film version of the invention, in the example shown in Figure 5, is that the decorative pressure is now applied to the second film 505. The first film is used to attach the antenna radiator and the second film is used for the decorative pressure. A further example of a two-strip solution is that the second strip with the decorative print is laminated with the above-described single-film solution, i.e. additional decorative print is added using the second film. A first decorative print 507 is applied to the top surface of the second film and a second decorative print 508 is applied to the bottom surface of the second film, by means of e.g. inkjet printing, screen printing, spray painting or an NCVM warehouse. The second film may be transparent or non-transparent. The thickness of the second film can vary, among other things depending on the number of sublayers, within 0.01 - 0.9 mm, preferably within 0.1 - 0.3 mm and most preferably within 0.01 - 0.1 mm. The second elm can also have your sublayers, which will be described later.

The decorative print can be made on the bottom or top surface belonging to any of these sublayers. The second film and its sublayers can be made of plastic materials such as PC, ABS or PET. The second elm may, if desired, also include an environmental protective layer on the top surface. The decorative print normally covers most of the top or bottom surface of the second film or most of the top or bottom surface of one of the sublayers included in the second film.

The lowest surface belonging to the first elm is preferably covered by an adhesive layer to improve the adhesion to the non-conductive part.

The conductive agent is applied to the bottom surface of the first film 503. The thickness of the first film in the example of Figure 5 without decorative print is about 0.03 mm. However, the thickness of the first film may vary, inter alia depending on the number of sublayers, within 0.01 - 0.9 mm, preferably within 0.1 - 0.3 mm and most preferably within 0.01 - 0.1 mm.

The conductive agent can be applied e.g. by means of printing. The area covered by the conductive means corresponds to the pattern and position marks of the antenna radiator. The position marks are located near the edges of the first film. A metal bearing, e.g. of copper, including the antenna radiator 509, is then applied over the surface of the conductive means in addition to the surface of the position marks, by using an electrolytic process such as electroplating. An etching or laser process can be used to remove parts of the metal layer if the surface of the conductive means is larger than the final radiator pattern, e.g. if a tuning of the antenna is desired.

The antenna radiator can also consist of a punched metal part which is applied by a metal to the conductive means. An antenna radiator with good conductivity, and position marks comprising only the conductive means, is thus applied to the lower surface belonging to the first arm. The metal can e.g. be gold or silver or copper or aluminum or platinum or a combination of metals. Since the decorative pressure is made on a surface closer to the outer surface of the housing element than the surface where the antenna radiator is applied, the antenna radiator will be covered by the decorative pressure and will not be visible from the outside. An antenna is thus provided including the second film with the decorative print and the first film with the antenna radiator. When the antenna is applied to an inner housing element, the decorative pressure can be omitted, which also means that the second film can be omitted.

An advantage of the two-strip version is that a full-size second strip with decorative print covering the main part of the outer surface of the casing element, or the surface of the casing element furthest from the interior of the mobile unit, is laminated with the first film having an area larger than the second strip and overlapping the second. men lmen and which also has a surface outside the overlapping part.

The position marks can then advantageously be located on the surface belonging to the first elm outside the overlapping part.

The position marks have two purposes for the two-film version of the invention: 1. to position the first film in relation to the second film 2. to position the laminated (see below) antenna in a preforming tool (see below) For the single-film version, the position marks are used only for the second purpose. 10 15 20 25 30 22 The surface of the first film, with the position marks, is cut off before the forming process.

An additional advantage of the two-film version is that there are no visible marks on the top surface belonging to the second film from the underlying first film, which could be the case if the first film has a smaller area than the second film. If the first elm has a smaller surface area than the second elm, the edges of the smaller first film could be seen on the top surface of the second film when laminated with the second film.

An adhesive layer can preferably be applied to the lower surface belonging to the first film and the antenna radiator to obtain a better application to the plastic raw material used for the non-conductive part.

One or more contact plates for each antenna radiator, which are used to connect the antenna radiator to e.g. a circuit board (PCB) in the mobile unit, is provided by using a conductive material such as a conductive adhesive which is inserted into holes 504 in the non-conductive part 502 of the housing element 501, where the holes are located in positions in line with a suitable contact point or points on antenna radiator. Figure 5 illustrates a solution using a hole 504 and an antenna radiator 509. The hole or holes in the housing element are filled with the conductive material e.g. the conductive adhesive so that the conductive filling is substantially flush with the inner surface of the housing member. It may be a conventional contact such as a resilient contact pin (pogo pin) for arranging the contact between the conductive plate or plates and the printed circuit board (PCB) of the mobile unit. A non-galvanic connection, such as a capacitive coupling, can also be used for contact between the conductive plate or plates and the circuit board (PCB). In a further example of the invention, one or more holes are open, i.e. not filled with the conductive filling. The contact with the electronic components of the mobile unit can then be arranged in any conventional manner by galvanic or non-galvanic means.

A special advantage of the two-film version of the invention is that the decoration and metallization are done in two separate processes where each process can be optimized for maximum yield independently of the other. This increases the total yield.

A typical antenna radiator such as a two-band PIFA normally needs two connections to connect the at least one antenna radiator to the mobile unit, one for connecting said antenna radiator to the mobile unit (RF) and one for the mobile unit. If a half-wave antenna is used, an RF connection may be Radio frequency circuits connection to a ground of sufficient. The antenna radiator connections are arranged through the holes in the non-conductive part. The antenna radiator can be of any type such as a patch or a PlFA. It can be one or more antenna radiators e.g. two metal antenna radiators comprising a main antenna radiator for GSM / UMTS and a separate Bluetooth or GPS (Global Positioning System) antenna radiator. The non-conductive part may thus comprise a first hole and a second hole 206, 504 where the first hole is arranged for RF connection and the second hole is arranged for connection to earth.

Figure 6 shows in a partial exploded view in perspective view an example of a two-film version of the invention with the antenna element 601 comprising the second element 602 with decorative print, the first element 603 with the at least one antenna radiator 604 and position marks 605. In this example both carriers are realized with transparent straps.

The second film has a decorative print, in this case a paint applied to cover the top surface 607 of the second film. The color is not displayed for reasons of clarity. On the lower surface belonging to the first film 603, in Fig. 6 the surface facing the reader, the antenna radiator 604 is applied to the conductive means. The conductive means is not shown in Figure 6 but is applied directly to the lower surface of the first element and the antenna radiator is then applied to the conductive means. The antenna radiator can be of any type such as e.g. a PIFA or a patch antenna. Position marks 605 are located near the edges of the first mlmen. The position marks are printed with the conductive means on either the top or bottom surface of the first film. These marks are used to position the antenna in a preforming tool which will be further described in connection with Figure 10. The position marks are also used to position the first film in relation to the second film. A rectangular boundary line 606 represents the contour of the final shape of the first element, constituting the antenna, when inserted into a shape for integration with the non-conductive part of the housing element. The boundary line may also have shapes other than rectangular as described in connection with Figures 3 and 4.

Figure 7 shows the two-film version of the invention in a partial exploded view in perspective view of the antenna element 701 comprising the first film 702 and the second film 703. The decorative print is in this example realized on the upper surface belonging to a first 704, a second 705 and a third 706 parts for the second film.

The top surface of the second film 703, which is also the top surface of the first sublayer 704, in this example has a decorative print comprising a color covering the entire top surface. The color is not displayed for clarity. The top surface of the second sublayer 705 has a decorative print comprising a wave pattern and the top surface of the third sublayer 706 has a decorative print comprising an elliptical pattern. The decorative print can also be applied to the bottom surface belonging to each sublayer. The top and bottom surface of a sublayer is defined in analogy to the definition of the top and bottom surface of a film, i.e. the top surface is defined as the surface closest to the outside of the mobile unit while the bottom surface is the surface closest to the interior of the mobile unit. In the example according to Figure 7, the decorative print is thus applied to at least one upper surface and / or at least one lower surface belonging to a partial layer.

The second film may also include technical layers and adhesive layers as described for the first film in connection with Figure 4.

On the lowest surface belonging to the first element 702, in Fig. 7 the surface facing the reader, the antenna radiator 707 is applied to the conductive means. The conductive means is not shown in Figure 7 but is applied directly to the bottom surface of the first element and the antenna radiator is then applied to the conductive means.

The antenna radiator can be of any type such as e.g. a PIFA or a patch antenna. Position marks 708 are located near the edges of the first film. The position marks are printed with the conductive means on either the top or bottom surface of the first film. These marks are used to position the antenna in a preforming tool, which will be further explained in connection with Figure 10. The position marks are also used to position the first film in relation to the second film. A rectangular boundary line 709 represents the contour of the final shape of the first film, constituting the antenna, when inserted into a shape for integration with the non-conductive portion of the housing member. The boundary line may also have shapes other than rectangular as described in connection with Figures 3 and 4.

The second film 703 may, if desired, also include an environmental protective layer on the top surface.

In this example, the sublayers are transparent. They can also be non-transparent. In this example, it will not be possible to see the antenna radiator from the outside of the mobile unit because the decorative print on the first sublayer belonging to the first film will obscure for transparency.

In the example of Figure 7, the second film has three sublayers. However, the number of sublayers may be more than 3 layers, typically 10-20 sublayers, including one or more technical sublayers and adhesive layers, as well as additional layers of decorative printing and the protective layer. The sub-bearings can thus include at least one adhesive sub-bearing and / or at least one technical sub-bearing. The invention is not limited to a certain number of sublayers as long as the thickness of the film is within the above-mentioned range.

The antenna element 701 is thus provided including the first element 702, with the antenna radiator 707 applied with the conductive means and the second element 703 with its sublayers and decorative prints.

In summary, the invention provides a housing element for a mobile unit. The mobile unit comprises radio frequency circuits and at least one antenna radiator arranged to be molded together with a non-conductive part of the housing element, said antenna radiator being a metal antenna radiator integrated in an antenna. The antenna comprises at least one first m ch.

The housing element comprises the antenna and the non-conductive part, said antenna radiator being arranged to be applied to the first film via a conductive means located between said antenna radiator and the first film.

The antenna is arranged to be molded together with the non-conductive part. At least one hole is provided in the non-conductive part to allow contact between said antenna radiator and the radio frequency circuits.

The invention further provides an antenna for a mobile unit. The antenna comprises at least one antenna radiator and the mobile unit comprises radio frequency circuits, said antenna radiator being a metal antenna radiator integrated in an antenna comprising at least a first film. The antenna radiator is arranged to be applied to the first arm via a conductive means located between said antenna radiator and the first film.

The manufacturing method will now be described with reference to Figure 8, which shows an example of the one-film version, and Figure 10, which shows an example of the two-film version.

In a first printing step 801, printing of the antenna radiator pattern and position marks, using a conductive means, is performed on one of the surfaces belonging to the first film or one of the surfaces belonging to a sublayer as described. The conductive agent can e.g. be a weak conductive ink. The conductive means can thus be any conductive material suitable for printing and which has at least a weak conductivity. This first printing step also includes the optional insertion of technical and adhesive sublayers as well as an environmental protective layer for the first film.

In an 802 antenna radiator pattern. In an electrolytic process such as electroplating, the following metal application steps can be applied to apply the antenna radiator. An etching or laser process can be used to remove parts of the metal layer if the surface of the conductive means is larger than the final radiator pattern e.g. if a tuning of the antenna is desired. The conductive material may be a metal such as e.g. copper, silver or gold.

In a third decorative printing step 803, the decorative print is applied to at least one of the surfaces belonging to the first film and / or its sublayers using e.g. ink printing, screen printing, spray painting or an NCVM layer as described. In a curing step 804, the printing of the antenna radiator pattern, the position marks and the decorative pressure is allowed to dry e.g. by inserting the antenna into a heating chamber. In these first four steps, the first film comprises a number of antenna elements 902 on a common production sheet 901, see figure 9. Each antenna element is intended for a mobile unit. In a fifth punching step 805, holes are punched at the position marks 903. The punching step may, if desired, include a coarse cutting operation where the production sheet 901 is cut into smaller pieces, e.g. to a reduced production sheet comprising 8 antenna elements in the example according to fl figure 9. The rough cutting operation can e.g. also result in a reduced production sheet comprising 4 antenna elements. The antenna is the part of the antenna element that is within the contour boundary 904. In a sixth preforming step 806, the production sheet, the reduced production sheet or the antenna element is inserted into a single or multi-cavity preforming tool. A single cavity preforming tool can be used when cutting the production sheet into simple antenna elements. The antenna element will normally have a 3D structure, i.e. the antenna element will be bent in a third dimension, after the preform but may also be flat. After the preform, the antenna element, the production sheet or the reduced production sheet will have the shape of the mold cavity, which together with the position holes will help to position the antenna element, the production sheet or the reduced production sheet in the mold. In a seventh cutting step 807, the area of the antenna element 902 outside the contour boundary 904 including the position marks is cut off. In this way, individual antennas with the final shape with the contour 904 are created.

The eighth forming step 808 is a conventional IML process in which the antenna is placed in the mold cavity and plastic raw material, to form the non-conductive part, is injected into the mold cavity. The antenna is thus molded together with the non-conductive part. The plastic raw material can e.g. comprise thermoplastic or hardening plastics, typically PC or a mixture of PC and ABS. The plastic raw material is connected to the antenna and the result of the forming step is the casing element. The forming step is a standard process well known to those skilled in the art and is therefore not discussed further here.

In an optional ninth contacting step 809, the holes 206, 504 in the non-conductive part may be filled with a conductive material such as e.g. conductive adhesive. The conductive filling is made so that the conductive filling will be substantially level with the inner surface of the housing element. It may be a conventional contact such as a resilient contact pin (pogo pin) for arranging the contact between the conductive plate or plates and the circuit board (PCB) belonging to the mobile unit. A non-galvanic connection, such as a capacitive coupling, can also be used for contacting between the conductive plate or plates and the circuit board (PCB).

When the ninth contacting step is not completed, the hole or holes in the non-conductive structure will be left open / open, i.e. not filled / filled to the mobile unit on which with the conductive filling. The contacting electronic components can then be arranged in any conventional manner by galvanic or non-galvanic means. In the tenth step, production continues with additional assembly steps that are not part of this invention.

Figure 10 illustrates an example of the manufacturing method for the two-strip version of the invention. A first two strip printing steps 1001 include printing the antenna radiator pattern and position marks, using a conductive means, on one of the surfaces of the first film or one of the surfaces of a sublayer as described. In the two-film version, the first film normally includes only one layer. The conductive agent can e.g. be a weak conductive ink. The conductive means can thus be any conductive material suitable for printing and with at least a weak conductivity. In a subsequent application step 1002, metal such as copper, gold or silver is applied to the antenna radiator pattern. An electrolytic process such as electroplating can be used to apply the antenna radiator. An etching or laser process can be used to remove parts of the metal layer if the surface of the conductive means is larger than the final radiator pattern e.g. if a tuning of the antenna is desired. The conductive material can be a metal such as e.g. copper, silver or gold. In a third adhesive printing step 1003, the lower surface of the first elm is advantageously covered with an adhesive layer to improve adhesion to the non-conductive member.

Decorative printing is applied to at least one surface belonging to the second film and its sublayers in a two-element decorative printing step 1004. This is done in analogy to applying the decorative print to the first film in the single-film version of the invention.

Curing is performed in a dual film curing step 1005 in the same manner as described for the single film version.

The two films are laminated together in a separate lamination process step 1006 thus creating an antenna with decorative print. This lamination process can be either a hot process, such as to use a hot-activated adhesive layer between the elements or a cold process, such as to use pressure sensitive adhesive between the films.

The following steps are performed as manufacturing steps 805-810 described above for the single film version.

Figures 8 and 10 show two examples of manufacturing methods for casing elements.

Variations are possible within the scope of the invention. Common to the manufacturing method described in connection with Figures 8 and 10, however, is that the invention provides a method of manufacturing a housing element for a mobile unit having the following properties: o metal is used for realizing said antenna radiator, o said antenna radiator is integrated in an antenna comprising at least a first film, the housing element comprising the antenna and the non-conductive part, said antenna radiator being mounted on the first film via a conductive means located between said antenna radiator and the first film, o the antenna is molded with the non-conductive part and o at least one hole is provided in the non-conductive part to allow said antenna radiator and contact between the radio frequency circuits. radio frequency circuits and at least one mobile unit comprises antenna radiator which is molded together with the housing element.

Figure 11 is a partial exploded perspective view of a housing member 1101 having an antenna 1102 and a non-conductive member 1103 in a single film version. The illustrated housing element can e.g. be a back cover for a cell phone. A portion of the antenna radiator 1104 can be seen on the bottom surface of the first film. A contact plate 1105 fills a hole in the non-conductive part with a conductive material and is in galvanic contact with the antenna radiator. An aperture 1106 through the non-conductive member and the antenna may e.g. be used as an opening for a camera.

Figure 12 is a partial exploded perspective view of a housing member 1201 with an antenna 1202 and a non-conductive member 1208 in a dual film version.

The antenna comprises the first film 1203 with the antenna radiator 1205 and the second film 1204 with decorative print. The illustrated housing element 10 can be e.g. be a back cover for a cell phone. A portion of the antenna radiator 1205 can be seen on the bottom surface of the first film. A contact plate 1206 fills an opening in the non-conductive part 1208 with a conductive material and is in galvanic contact with the antenna radiator 1205. An opening 1207 through the non-conductive part and the antenna can e.g. be used as an opening for a camera.

As mentioned above, the first film, the second film and the sublayers may be transparent or non-transparent. It is also possible with a combination of transparent and non-transparent films and sublayers within an antenna. also a mobile unit comprising an invention provides housing elements according to any one of claims 1-17.

The invention is not limited only to the examples described above, but instead many variations are possible within the scope of the inventive concept defined by the appended claims. Within the scope of the inventive concept, the features of various examples and applications may be used in combination with or replace the features of another example or application.

Claims (36)

10 15 20 25 30 2010-11-02 222725 UJN / UJN 33 PATENTKRAV A housing element (201, 501, 1101.1201) for (101), the mobile unit comprising radio frequency circuits (109) and at least one antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) arranged to be co-molded with a non-conductive part (202, 502, 1103, 1208) belonging to the housing element, characterized in that said antenna radiator is an antenna (209, 1102, 1202) comprising at least a first film (203, 301, 401, 503, 603, 702, 1203 ), the housing element comprising the antenna and the non-conductive part, said a mobile unit antenna radiator of metal integrated in antenna radiator arranged to be applied to the first film via a conductive means (305, 408) located between said antenna radiator and the first film, the antenna arranged to be molded with the non-conductive portion and further that at least one hole (206, 504) is provided in the non-conductive portion to allow contact between said antenna radiator and the radio frequency circuits. A housing element according to claim 1, characterized in that said antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) is made of a metal with good conductivity. A housing element according to claim 2, characterized in that said antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) is made of gold or silver or copper or aluminum or platinum or a combination of metals. A housing element according to any one of claims 1-3, characterized in that the housing element (201, 501, 1101, 1201) is at least a part of an outer cover of the mobile unit (101). A housing element according to claim 4, characterized in that the housing element (201, 501, 1101, 1201) is a back cover of a mobile telephone. 10 15 20 25 30 34 A housing element according to any one of claims 1-5, characterized in that said one or more holes (206, 504) in the non-conductive part (202, 502, 1103, 1208) are filled / filled with a conductive material so that the conductive filling is substantially flush with an inner surface of the housing member (201, 501, 1101, 1201). A casing element according to claim 6, characterized in that the conductive filling is conductive adhesive. A casing element according to any one of claims 1-7, characterized in that the first element (203, 301, 401, 503, 603, 702, 1203) has a decorative print applied to a top surface (302, 407 ) belonging to the first film. A casing element according to claim 8, characterized in that the first film (203, 301, 401, 503, 603, 702, 1203) has a number of sublayers (402-406, 704-706) and in that decorative print is applied to at least one top surface and / or at least one bottom surface belonging to a sublayer, the top surface constituting the surface closest to the outside of the mobile unit and the bottom surface constituting the surface closest to the interior of the mobile unit (101). A casing element according to claim 9, characterized in that the sublayers (402-406, 704-706) comprise at least one adhesive sublayer and / or at least one technical sublayer (405). A housing element according to any one of claims 1-7, characterized in that the antenna (209, 1102, 1202) comprises a second film (505, 602, 703, 1204) with a decorative print, the first film ( 203, 301, 401, 503, 603, 702, 1203) with said antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) and position marks (306, 410, 605, 708, 903). 10 15 20 25 30 35 A casing element according to claim 11, characterized in that the second element (505, 602, 703, 1204) has a number of sublayers (402-406, 704-706) and in that decorative print is applied to at least one top layer. surface and / or at least one lower surface belonging to a partial layer, the upper surface constituting the surface closest to the outside of the mobile unit and the lower surface constituting the surface closest to the interior of the mobile unit (101). A casing element according to claim 12, characterized in that the sublayers (402-406, 704-706) comprise at least one adhesive sublayer and / or at least one technical sublayer (405). A casing element according to any one of the preceding claims, characterized in that the first element (203, 301, 401, 503, 603, 702, 1203), the second element (505, 602, 703, 1204) and the sublayers (402-406, 704-706) are transparent or non-transparent or a combination of transparent and non-transparent films and sublayers within an antenna. A housing element according to any one of the preceding claims, characterized in that the non-conductive part (202, 502, 1103, 1208) has a first hole and a second hole (206, 504) where the first hole is arranged for RF connection and the second hole is arranged for connection to earth. 16. A feature of the antenna (209, 1102, 1202) comprising one or more antenna radiators (205, 304, 409, 509, 604, 707, 1104, 1205). casing element according to any one of the preceding claims, 17. A feature characterized in that the top surface belonging to the first film (203, 301, 401, 503, 603, 702, 1203) and / or the second film (505, 602, 703, 1204) comprises a protective layer. housing element according to one of the preceding claims, 10 15 20 25 30 36 A method of manufacturing a housing element (201, 501, 1101, 1201) for a mobile unit (101), the mobile unit comprising radio frequency circuits (109) and at least one antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205 ) molded together with the housing element, characterized by: using metal for realizing said antenna radiator, integrating said antenna radiator into an antenna (209, 1102, 1202) comprising at least a first film (203, 301, 401, 503, 603 702, 1203), the housing element comprising the antenna and the non-conductive part (202, 502, 1103, 1208), applying said antenna radiator to the first film via a conductive means (305, 408) located between said antenna radiator and the first film, merging the antenna with the non-conductive part and arranging at least one hole (206, 504) in the non-conductive part to allow contact between said antenna radiator and the radio frequency circuits. A method according to claim 18, characterized by: printing (801) the antenna radiator pattern and position marks (306, 410, 605, 708, 903), using a conductive means (305, 408), on one of the surfaces of the first film (203, 301, 401, 503, 603, 702, 1203) or one of the surfaces of a sublayer (402-406, 704-706), application (802) of metal to the antenna radiator pattern, application of decorative pressure (803) on at least one surface belonging to the first film and / or its sublayers, curing (804) the printing of the antenna radiator pattern, position marks and the decorative pressure, punching (805) of holes at the position marks, preforming (806 ) of a production sheet (901), a reduced production sheet or an antenna element (902, 701, 601, 400) by inserting into a preforming tool, the production sheet and the reduced production sheet comprising a number of antenna elements, (807) of the area of the antenna element outside a contour boundary (307, 411, 606, 709, 904) including the position marks (306, 410, 605, 708, 903) and merging (808) of the antenna (209, 1102, 1202) with the non-conductive part (202, 502, 1103, 1208) thus cutting away realization of the housing element (201, 501 , 1101, 1201). A method according to claim 19, characterized in that a rough cutting operation in which the production sheet (901) is cut into smaller pieces and / or a contacting step is added, in the contacting step the holes (206, 504) in the non-conductive part are filled with a conductive material. A method according to claim 18, characterized by: printing (1001) the antenna radiator pattern and position marks (306, 410, 605, 708, 903), using a conductive means (305, 408), on one of the surfaces of the first film (203, 301, 401, 503, 603, 702, 1203) or one of the surfaces of a sublayer (402-406, 704-706), application (1002) of metal to the antenna radiator pattern, coverage (1003) of the bottom surface belonging to the first film with an adhesive layer, applying (1004) decorative print to at least one surface belonging to a second film (505, 602, 703, 1204) and its sublayers, (1005) of position marks and the decorative print , curing the printing of the antenna radiator pattern, o laminating (1006) the two films, o punching (805) holes at the position marks, o preforming (806) a production sheet (901), a reduced production sheet or an antenna element (902, 701, 601, 400) by insertion into a preforming tool, productions and reduced production sheet comprising a plurality of antenna elements, (807) of the area of the antenna element outside a contour boundary (307, 411, 606, 709, 904) and merging (808) the antenna (209, 1102, 1202) with the non-conductive part ( 202, 502, 1103, 1208) and thus cutting off realization of the housing element (201, 501, 1101, 1201). A claim 21, a rough cutting operation in which the production sheet (901) is cut into smaller pieces method according to the feature that one and / or a contacting step is added, in the contacting step the holes (206, 504) in the non-conductive part (202, 502, 1103 are filled , 1208) with a conductive material. A mobile unit (101) comprising a housing element (201, 501, 1101, 1201) according to any one of claims 1-17. An antenna for a mobile unit (101), the antenna comprising at least one antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) and the mobile unit comprising radio frequency circuits (109), characterized in that said antenna radiator is a metal antenna radiator integrated in an antenna (209, 1102, 1202) comprising at least a first film (203, 301, 401, 503, 603, 702, 1203), said antenna radiator being arranged to be applied to the first film via a conductive means (305, 408) located between said antenna radiator and the first film. 10 15 20 25 30 39 An antenna according to claim 24, characterized in that the first film (203, 301, 401, 503, 603, 702, 1203) has a decorative print applied to a top surface (302) of the first film. An antenna according to claim 25, characterized in that the first film (203, 301, 401, 503, 603, 702, 1203) has a number of sublayers (402-406, 704-706) and in that decorative pressure is applied to at least one upper surface and / or at least one lower surface belonging to a partial layer, the upper surface constituting the surface closest to the outside of the mobile unit (101) and the lower surface constituting the surface closest to the interior of the mobile unit. An antenna according to claim 26, characterized in that the sublayers (402-406, 704-706) comprise at least one adhesive sublayer and / or at least one technical sublayer (405). An antenna according to claim 24, characterized in that the antenna comprises a second film (505, 602, 703, 1204) with a decorative print, the one (203, 301, 401, 503, 603, 702, 1203) with said antenna radiator ( 205, 304, 409, 509, 604, 707, 1104, 1205) and position marks (306, 410, 605, 708, 903). first film An antenna according to claim 28, characterized in that the second film (505, 602, 703, 1204) has a number of sublayers (402-406, 704-706) and in that decorative pressure is applied to at least one upper surface and / or at least one lower surface belonging to a partial layer, the upper surface constituting the surface closest to the outside of the mobile unit (101) and the lower surface constituting the surface closest to the interior of the mobile unit. An antenna according to claim 29, characterized in that the sublayers (402-406, 704-706) comprise at least one adhesive sublayer and / or at least one technical sublayer (405). 10 15 20 25 30 40 An antenna according to any one of claims 24 to 30, characterized in that the first film (203, 301, 401, 503, 603, 702, 1203), the second film (505, 602, 703, 1204) and the sublayers (402-406, 704-706) are transparent or non-transparent or a combination of transparent and non-transparent films and sublayers within an antenna (209, 1102, 1202). An antenna according to any one of claims 24-31, characterized in that said antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) has two connections, one for connecting said antenna radiator to the radio frequency circuits. , The RF circuits, associated with the mobile unit (101) and a ground unit for connection to a ground, the connections arranged through said holes (206, 504) in the non-conductive part (202, 502, 1103, 12o8). An antenna according to any one of claims 24-32, characterized in that the antenna (209, 1102, 1202) comprises one or more antenna radiators (205, 304, 409, 509, 604, 707, 1104, 1205) of metal. An antenna according to any one of claims 24-33, characterized in that at least one of said antenna radiators (205, 304, 409, 509, 604, 707, 1104, 1205) is a PlFA and / or a patch antenna radiator. An antenna according to any one of claims 24-34, characterized in that said antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) is made of a metal with good conductivity. An antenna according to claim 35, characterized in that said antenna radiator (205, 304, 409, 509, 604, 707, 1104, 1205) is made of gold or silver or copper or aluminum or platinum or a combination of metals .