DE102020004293A1 - Security document, method for verifying a security document and reader for a security document - Google Patents

Abstract

The present invention relates to a security document which has at least one document body formed from at least two substrate layers, a conductor structure matched to a first characteristic value and a transponder designed for contactless data exchange, the conductor structure having two end sections and at least one end section being left unconnected or the end sections being connected to one another are electrically conductively connected and wherein the transponder has at least one antenna tuned to a second characteristic value and an electronic component with a read/write memory. The invention further relates to a method for verifying a security document having a conductor structure and a reading device for a security document.

Description

The present invention relates to a security document, a method for verifying a security document and a reading device for a security document.

Chip cards with an integrated RFID transponder in various designs are known from the prior art. Those skilled in the art are familiar with transponders which are integrated, for example, in identity cards and generally consist of at least one antenna and a chip that is connected to the antenna in contact with it. As a rule, RFID transponders are able to transmit data without contact using an alternating magnetic or electromagnetic field. Passive transponders obtain the energy for their operation from the field generated by the RFID reader through inductive coupling. The communication between the chip of such passive transponders without their own energy source and a reading device can be not only contactless, but also contact-based via contact surfaces arranged on the outside of the chip card. So-called dual-interface cards also enable communication both via a contact interface and via a contactless interface.

In order to generally protect such chip cards and security documents against counterfeiting, they are provided with mostly optical security features, which are visually recognizable and verifiable and/or can be recognized and verifiable by machine using optical testing means.

The pamphlet DE102006043021A1 shows a data carrier with a transponder, the data carrier having a transponder antenna with several turns and the conductor bridge being formed by an electrically conductive security thread. This is intended to protect data carriers containing transponders against counterfeiting.

From the pamphlet DE102006044881A1 a data carrier can be seen which has two antenna devices which can be connected in series in a switching state in relation to an electronic circuit.

However, known solutions for chip cards and security documents in general have the disadvantage that the transponders or oscillating circuits contained in these solutions are inadequate for use as a security feature.

It is therefore the object of the invention to specify a security document which is improved against attempts at forgery, a method for checking a security document and a reading device.

The objects on which the invention is based are achieved with the features of the independent patent claims. Additional advantageous refinements and developments are specified in the respective dependent subclaims.

A first aspect of the invention relates to a security document comprising at least one document body formed from at least two substrate layers, a conductor structure which is matched to a first characteristic value, the conductor structure having two end sections and at least one end section being left unconnected or the end sections being electrically conductively connected to one another and a transponder designed for contactless data exchange, which has at least one antenna tuned to a second characteristic value and an electronic component with a read/write memory.

One advantage of this solution is that a security document that can be produced inexpensively and whose authenticity can be easily checked is created with a security feature that is not visible to a forger from the outside. In particular, the solution presented here represents a security feature which a counterfeiter will not readily perceive as such a security feature, thereby further increasing the security against forgery.

The security document can be a bank card, an identity card, a driver's license or any other authorization or identification card in the ID-1 format.

According to one embodiment, the first parameter can be a first physical property of the conductor structure and the second parameter can be a second physical property of the antenna of the transponder. Preferably, the first parameter can be tuned to a resonant frequency in the ultra-high frequency range and the second parameter can be tuned to a resonant frequency in the high-frequency range, in particular 13.56 MHz. Alternatively, the first and the second characteristic value can be a printed conductor resistance value, a capacitance value or an inductance value.

If an attempt at forgery is made and the transponder and/or the conductor structure of the security document are exchanged in the process, the attempted forgery would be prevented if the deviation of the determined first and/or second characteristic value can be determined from an expected first and/or second characteristic value.

The conductor structure can be a coil, a loop antenna or a dipole antenna. In particular, the conductor structure can be formed without being connected to an electronic component, preferably without being connected to a chip. In other words, the conductor structure is chipless. One end section of the conductor structure or both end sections of the conductor structure can thus have an open end or be left unconnected. According to one embodiment, an end section of the conductor structure can be connected to a capacitor.

The conductor structure and/or the antenna of the transponder can preferably be produced by printing; for example by screen printing or digital printing, and made of a conductive ink. In other embodiments, the antenna and/or the conductor structure can be made of metallic wire material.

According to one embodiment, the antenna of the transponder and the conductor structure can consist of different manufacturing materials or of the same manufacturing material and can be arranged on a common substrate layer surface or on different substrate layer surfaces of the document body. By arranging the antenna and the conductor structure on different substrate layer surfaces of the document body, the antenna and the conductor structure can also be arranged at least partially overlapping one another. By arranging the antenna and the conductor structure on a common substrate layer surface, the components can be realized in a particularly simple manner, such as in a common printing process.

The first and the second characteristic value can be defined by the geometric and/or material-related properties of the antenna and the conductor structure during the production of the security document, for example by defining the conductor path widths of the antenna turns or the number or size of the antenna turns.

If, for example, the antenna geometry is changed by increasing the track width from 900 µm to 1200 µm, the value of the inductance and the level of the track resistance change. A change in the inductance also results in a change in the resonant frequency.

In addition, there are different types of a security document of a respective format (ID-1, ID-3). For example, a provisional passport, a children's passport or a diplomatic passport is known, although the list is not complete. Not all of these types have a data page.

The security document can be identified depending on the type by adapting the conductor structure and/or the antenna of the transponder or by adapting the first and/or second characteristic value to a specific security document type. In other words, the first characteristic value and/or the second characteristic value can be different depending on a security document type. For example, the conductor structure in a security document may have a resonant frequency of 500 MHz for a diplomat and a resonant frequency of 800 MHz for a "commoner". Accordingly, the first characteristic value and/or the second characteristic value can be different depending on a security document type. If there is a deviation in the resonant frequency to be expected for the conductor structure or the antenna, a forgery of the security document becomes evident.

According to one embodiment, a first reference value for the conductor structure can be stored in the read/write memory of the electronic component and/or a second reference value for the antenna can be stored in the read/write memory of the electronic component. A resulting advantage consists not only in the fact that the antenna or the conductor structure has to be forged in accordance with its respective characteristic value in the event of a forgery attempt, but at the same time a first and/or second reference value or Verification value is provided by the security document itself. The first reference value or first test value can correspond to or represent the first characteristic value. The second reference value or second test value can correspond to or represent the second characteristic value. “Represent” means that the first and/or second reference value can correspond to coded information which has the first and/or second characteristic value. The read/write memory is therefore set up so that data can be written in and read out. The read/write memory can provide a non-volatile memory for this.

According to a preferred embodiment, the first reference value stored in the read/write memory of the electronic component can correspond to a maximum value that can be determined for the first characteristic value. This is explained in the description Exercise explained below with reference to the figures.

According to a further preferred embodiment, a first position value can be stored in the read/write memory of the electronic component, which determines a position of the conductor structure in the security document and/or a second position value can be stored in the read/write memory of the electronic component, which determines a position of the Antenna specified in the security document. The first position value can include a first coordinate or x-coordinate and a second coordinate or y-coordinate, ie a pair of coordinates.

A forger must therefore also take into account the exact position of the ladder structure arranged in the security document in order to successfully forge the security document or a part of the document complying with the ladder structure. A first and/or second position value to be expected for checking the first and/or second characteristic value is thereby provided by the security document itself. A forged conductor structure with identical physical properties, but which has a position value that deviates from the position value to be expected, can easily be recognized as a forgery.

According to a further embodiment, the antenna of the transponder can be electrically conductively connected to the electronic component. Something in which the connection surfaces of the antenna are directly or indirectly soldered or welded to connection surfaces of the electronic component.

According to a further embodiment, the transponder can be arranged in the document body has a module assembly which comprises at least one module antenna arranged on a dielectric carrier (e.g. PET or polyimide) and the electronic component connected to the module antenna, the antenna of the transponder having the module antenna is inductively coupled. The electronic component can be a chip module having a chip. The module assembly is also referred to as a coil-on-module assembly.

In a further embodiment, the module assembly can also be capable of contact-based data exchange. In this case, a plurality of contact pads can be arranged on a second side of the dielectric carrier, while the module antenna of the module assembly is arranged on the first side of the carrier opposite the second.

In one embodiment, the security document can be a passport and comprise several document parts that are connected to one another in the area of a cover fold and can be pivoted relative to one another, with a first document part through the document body, a second document part through a front cover, a third document part through a back cover and a fourth document part is formed by at least one document page. A data page may be immediately adjacent to a front cover. The body of the document may be in the form of a front or back cover.

According to one embodiment, the document body can be designed as a personalized data page, with the transponder being arranged in the document body and the conductor structure being arranged in the front or back cover, or with the transponder being arranged in the front or back cover and the conductor structure being in the document body is arranged.

• - Anordnen zumindest eines Abschnitts eines Dokumententeils des Sicherheitsdokuments auf oder an einer ersten Seite eines Auflagebereichs des Lesegeräts;
• - Senden einer Vielzahl an Lese-Impulsen an die Leiterstruktur;
• - Empfangen von durch die Leiterstruktur reflektierten Signalwerten, wobei eine Leseantenne des Lesegeräts während des Sendens und Empfangens mittels einer ersten Bewegungseinrichtung in eine erste Richtung und mittels einer zweiten Bewegungseinrichtung in eine orthogonal zur ersten Richtung orientierten zweiten Richtung relativ zum Auflagebereich des Lesegeräts bewegt wird; und
• - Ausgeben eines aus den reflektierten Signalwerten ermittelten ersten Kennwerts der Leiterstruktur, wobei der erste Kennwert einem für den ersten Kennwert ermittelbaren Maximalwert entspricht.

According to a second aspect, the invention relates to a method for verifying a security document having a conductor structure using a reading device, having the steps:

• - arranging at least one section of a document part of the security document on or on a first side of a support area of the reading device;
• - Sending a plurality of reading pulses to the conductor structure;
• - receiving signal values reflected by the conductor structure, with a reading antenna of the reading device being moved during transmission and reception by means of a first movement device in a first direction and by means of a second movement device in a second direction oriented orthogonally to the first direction relative to the contact area of the reading device; and
• Outputting a first characteristic value of the conductor structure determined from the reflected signal values, the first characteristic value corresponding to a maximum value that can be determined for the first characteristic value.

In addition, the method can also include outputting a first position value assigned to the first characteristic value, with the first position value determining a position of the conductor structure in the document part of the security document.

In a further step, the determined first characteristic value can be compared with a first reference value for the conductor structure and/or the output first position value can be compared with a first position reference value for the conductor structure. As a result, the security document can be output as an original or as a forgery depending on the at least one comparison.

According to a further step, the security document can include a transponder with at least one antenna and an electronic component, wherein the method can include reading out a first reference value for the conductor structure and/or a first position reference value for the conductor structure stored in the electronic component of the transponder. The first position reference value can correspond to or represent the first position value. “Represent” means that the first position reference value can correspond to encoded information which has the first position value.

• - einen Auflagebereich mit einer ersten Seite und einer der ersten gegenüberliegenden zweiten Seite, wobei an oder auf der ersten Seite ein Dokumententeil eines Sicherheitsdokuments aufweisend eine Leiterstruktur zumindest abschnittsweise anordbar ist;
• - ein der ersten Seite des Auflagebereichs zugeordnetes Hilfsmittel zum zumindest abschnittsweisen Anlegen des Dokumententeils des Sicherheitsdokuments an oder auf dem Auflagebereich;
• - eine benachbart zur zweiten Seite des Auflagebereichs (156) angeordnete Leseantenne, wobei die Leseantenne mittels einer ersten Bewegungseinrichtung in und entgegen einer ersten Richtung sowie mittels einer zweiten Bewegungseinrichtung in und entgegen einer orthogonal zur ersten Richtung orientierten zweiten Richtung positionierbar ist, wobei das Lesegerät dazu konfiguriert ist ein Verfahren gemäß der vorliegenden Erfindung auszuführen.

According to a third aspect, the invention relates comprehensively to a reading device

• a support area with a first side and a second side lying opposite the first side, wherein a document part of a security document having a conductor structure can be arranged at least in sections on or on the first side;
• - A tool assigned to the first side of the support area for at least partially applying the document part of the security document to or on the support area;
• - a reading antenna arranged adjacent to the second side of the support area (156), wherein the reading antenna can be positioned in and counter to a first direction by means of a first movement device and in and counter to a second direction oriented orthogonally to the first direction by means of a second movement device, the reading device being able to do this is configured to carry out a method according to the present invention.

The reading device is suitable for inductive coupling to an antenna or a conductor structure of a security document and also has a controller, a high-frequency module and at least one interface for a data processing device (PC) for executing program instructions. The data processing device can in turn be connected to an image output device. In addition or as an alternative to the data processing device, the reading device can have a processor for executing program instructions. In order to determine the first characteristic value, i.e. the resonant frequency, of the conductor structure, the reading antenna can be coupled to a vector network analyzer in order to record and determine the resonant frequency by means of an input reflection measurement.

The reading device can be designed as a mobile unit in order to check the authenticity of security documents at control points, such as access areas to buildings or security areas.

Alternatively, the reading device can also be integrated into a personalization machine for security documents and can be upstream of an electronic or graphic personalization module for security documents. In the course of the initial personalization of a security document, for example, it can be checked whether the appropriate security document type is present for the data to be personalized in or on the security document. Likewise, the first and/or the second characteristic value and/or the first and/or second position value for the security document to be personalized can be determined and transferred to the read/write memory of the electronic component of the security document in a subsequent personalization step.

Further exemplary embodiments, features and advantages of the invention are explained in more detail below with reference to the figures.

• 1 ein Sicherheitsdokument nach einer ersten Ausführungsform
• 2 ein Sicherheitsdokument nach einer zweiten Ausführungsform
• 3 ein Sicherheitsdokument nach einer dritten Ausführungsform
• 4 ein Lesegerät für ein Sicherheitsdokument in einer Draufsicht
• 5 ein gegenüber einem Lesegerät angeordnetes Sicherheitsdokument

Show it:

• 1 a security document according to a first embodiment
• 2 a security document according to a second embodiment
• 3 a security document according to a third embodiment
• 4 a reading device for a security document in a plan view
• 5 a security document placed opposite a reader

the 1 shows an example of a security document 100 according to the invention according to a first embodiment. The security document 100 has a multi-layer document body 102 and is designed as a data carrier in the ID-1 format or as a data page in the ID-3 format that can be introduced into a passport by means of a hinge element. As shown, the security document 100 has a (high-frequency) transponder suitable for contactless data exchange 104, which is formed from an antenna 106 with one or more antenna windings and an electronic component 108 with a read/write memory. The antenna 106 forms a winding window 112 which is enclosed by the antenna windings and in which a conductor structure 110 is arranged. In the present case, the antenna 106 of the transponder 104 and the conductor structure 110 are located on a common substrate layer surface, which makes it easier for the antenna 106 and the conductor structure 110 to be produced together in directly consecutive process steps. In the 1 and the following figures, the antenna 106 and/or the conductor structure 110 are shown to better illustrate the invention. In fact, the components mentioned are not visible to a viewer or not without additional optical aids. Deviating from the representation in 1 the security document 100 can also have a contact-based interface.

The conductor structure 110 is matched to the first characteristic value, which can be defined by the issuer and/or manufacturer of the security document. The same applies to the antenna 106 of the transponder 104 that is tuned to the second characteristic value.

According to a further embodiment accordingly 2 the security document 100 is in the form of a passport. The security document 100 has several document parts that are connected to one another and can be pivoted relative to one another. A first document part can be formed by the document body 102 . The document body 102 may be a personalized data page and may include data related to the passport holder in and/or on the document body. A second document part can be formed by a front cover 120 . A third document part can be formed by a back cover 122 . A fourth document part can be formed by at least one document page 124. In the area of a cover fold 118, the first, the second, the third and the fourth document part can be connected to one another. The transponder 104 (not shown) can be located in the first, second or third part of the document. In this case, the antenna 106 of the transponder 104 can be electrically conductively connected to the electronic component 108 or electrically contact-connected.

In the present case, the conductor structure 110 is arranged in the rear cover 122 and is arranged slightly closer to the cover fold 114 than to the side edge 123 in relation to a first long side edge 121A running parallel to the cover fold 114 . In addition, the conductor pattern 110 is positioned closer to a first short side edge 123A of the envelope cover 122 than to a second short side edge 123B. The position of the conductor structure 110 in relation to two mutually orthogonally oriented side edges of the document part having the conductor structure 110 is determined by a first position value. However, this arrangement of the conductor structure 110 is to be understood as an example. In order to avoid bending stresses acting on the conductor structure 110, it can be advantageous if the conductor structure 110 is arranged and dimensioned in the document part in such a way that the conductor structure 110 does not overlap with an imaginary central axis of the document part running parallel to the cover fold 114.

In other embodiments, the conductor structure 110 may be arranged in the first or second document part instead. In another embodiment, the transponder 104 and the conductor structure can be arranged together in the first, second or third document part.

the 3 a further embodiment for a security document 100 embodied as a passport can be seen, with the representation of the security document 100 omitting the representation of the fourth document part. The security document 100 is shown in an unfolded state. The conductor structure 110, which is matched to a first characteristic value, is arranged in the front cover 120 in this case. The arrangement of the conductor structure 110 in relation to a second long side edge 121B and a first short side edge 123C of the envelope cover 120 determines a first position value for the conductor structure.

The first document part can in turn be formed by the document body 102 . The transponder 104 is arranged in the document body 102, which corresponds to the personalized data page. Using the example of 3 the transponder 104 has an antenna 106, a module assembly 115 and the electronic component 108 which is assigned to the module assembly 115 and is designed as a chip module. The module assembly 115 comprises a module antenna 118 which is arranged on a dielectric carrier 116 and which is connected in contact with the chip module. The module antenna 118 is inductively coupled to the antenna 106 .

Such a configuration of the transponder 104 can create a transponder that is cost-effective to produce and the problem of mechanically sensitive galvanic mechanical connections between the antenna 106 and the electronic component 108 are avoided.

In other embodiments of the 3 the above-mentioned transponder 104 can be arranged in the second or third part of the document, whereby the conductor structure 110 can be arranged in the first or third part of the document. By arranging the antenna 106 and the conductor structure 110 in different parts of the document, a coupling effect of the antenna 106 and the conductor structure 110 is avoided, if this is not desired, which would arise if the antenna 106 and the conductor structure 110 were sufficiently close together and would result in an upset or reduction of the resonance frequency would result.

the 4 shows a reading device 150 according to the invention for a security document 100 in a top view in a very schematic representation. The reader 150 includes a support area, which can be formed by a support element (not shown). The support element can be a flat element made of glass or plastic, for example. The support area 156 has a first side, which faces the document part of the security document 100 to be arranged opposite the reading device 150 . In addition, the support area 156 has a second side opposite the first, which faces away from the security document 100 to be arranged opposite the reading device 150 .

A tool 158 assigned to support area 156 also facilitates the positioning of the document part of security document 100 or of the entire security document 100 on or on support area 156, in that the document part of security document 100 can be aligned with at least one side edge on tool 158.

The support area 156 can preferably be dimensioned so that the document part of the security document 100 to be arranged or the entire security document 100 can be arranged exclusively in a specific orientation with respect to the support area 156 of the reading device 150 .

The aid 158 can be a mechanical stop or a marking applied on or in the support area 156 . The stop can consist, for example, of two edges running at right angles to one another, which slightly protrude from the surface of the support area 156 . In order to fix the document part or the security document 100 in place, the reading device 150 can additionally have a clamping element that can be pivoted with respect to the support area 156 .

The support area 156 can be part of a housing 151 . A reading antenna 152 is arranged inside the housing 151 and adjacent to the second side of the support area 156, that is to say below the support area 156. FIG. Reading antenna 152 is accommodated on a base element (board) 154 and, together with base element 154, for carrying out the method for verifying security document 100 by means of a first movement device 160 in and counter to a first direction A and by means of a second movement device 170 in and counter to a orthogonal to the first direction A oriented second direction B positionable. To move the reading antenna 152 in and counter to the first direction A, the reading antenna 152 can be moved with the drive 162 along the guide 164 . For moving the reading antenna 152 in and counter to the second direction B, the reading antenna 152 can be moved with the drive 172 along the guide 174 .

5 shows a security document 100, which is arranged on the support area 156 of the reading device 150 and aligned with the auxiliary device 158. For a better understanding and to explain the method according to the invention, 5 additionally drawn a coordinate system. The x-axis and the y-axis of the coordinate system are fixed and determined by the arrangement of the tool 158 .

As soon as a document part of the security document 100 with the conductor structure 110 arranged therein, in the example of 5 the second document part 120, is arranged on or at the support area 156 and is thus brought into communication range of the reading device 150, the first characteristic value of the conductor structure is determined. It is not absolutely necessary for the security document 100 to touch the support area 156 if the security document 100 is being held by an operator.

The reading device 150 generates a magnetic or electromagnetic field of a certain strength and excites the conductor structure 110 to oscillate by sending read pulses at intervals of a few msec, the reading antenna 152 being guided by the movement device 160 along the first direction A and by the movement device 170 along the second direction B is moved continuously or stepwise. It has proven to be expedient here if the reading antenna 152 is moved in a meandering manner. In addition, the reader 150 can be set in operation so that the frequency of the reader 150 to the first Characteristic value or the resonant frequency of the conductor structure 110 corresponds.

Signal values reflected by the conductor structure 110 are received by the reading device 150 and measured by a network analyzer connected to the reading device 150 of a vectorial type, with a plurality of signal values, in this case resonant frequency values, of the conductor structure 110 being measured along the first and second direction and resulting from the measured values Signal values of the maximum value that can be determined for the conductor structure 110, in this case the maximum value of the resonant frequency, is determined and output. In the example shown, the maximum value of the resonance frequency is obtained when the reading antenna 152 is positioned opposite a midpoint of the conductor structure 110 . The maximum value is 850MHz, for example.

The determined maximum value for the conductor structure 110 corresponds to the determined first characteristic value and can then be compared with the first reference value stored in the read/write memory of the electronic component.

In addition, a first position value can be determined and output at least for the determined maximum value, whereby the position of the measurement of the maximum value and the position of the conductor structure 110 in the security document 100 or the second document part 120 can be determined. For this purpose, the reading device can be equipped with a position sensor. The first position value can include a first coordinate or x-coordinate and a second coordinate or y-coordinate. In the example of 5 the first position value corresponds to the coordinate pair (2cm / 6cm).

The determined first position value for the conductor structure 110 can then be compared with the first position reference value for the conductor structure 110 stored in the read/write memory of the electronic component.

Analogously to the method for verifying the conductor structure 110, a second characteristic value and/or a second position value can be determined for the antenna 106 of the transponder 104 arranged in the security document 100 or a document part of the security document. Correspondingly, the second characteristic value can be compared with a second reference value for antenna 106 stored in the read/write memory of electronic component 108 .

In order to carry out a particularly reliable and position-accurate measurement for determining the first and second characteristic value and the first and second position value, the reading antenna 152 can have smaller dimensions than the conductor structure 110 and the antenna 106 of the transponder 104. For example, the reading antenna 152 can have a dimension from 3 to 12 mm, preferably from 5 to 8 mm

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102006043021 A1 [0004]
• DE 102006044881 A1 [0005]

Claims (18)

Security document (100) comprising: - at least one document body (102) formed from at least two substrate layers; - A conductor structure (110) which is matched to a first characteristic value, wherein the conductor structure (110) has two end sections and at least one end section is left unconnected or the end sections are electrically conductively connected to one another; and - A transponder (104) designed for contactless data exchange, which has at least one antenna (106) tuned to a second characteristic value and an electronic component (108) with a read/write memory Security document (100) after claim 1 , characterized in that the first parameter is a first physical property of the conductor structure and the second parameter is a second physical property of the antenna of the transponder. Security document (100) after claim 1 or 2 , characterized in that the conductor structure (110) is preferably produced by printing and is designed as a coil or as a dipole antenna. Security document (100) according to one of the preceding claims, characterized in that a first reference value for the conductor structure (110) is stored in the read/write memory of the electronic component (108) and/or in the read/write memory of the electronic component (108) a second reference value for the antenna (106) is stored. Security document (100) according to one of the preceding claims, characterized in that the first reference value stored in the read/write memory of the electronic component (108) corresponds to a maximum value which can be determined for the first characteristic value of the conductor structure. Security document (100) according to one of the preceding claims, characterized in that a first position value is stored in the read/write memory of the electronic component (108), which determines a position of the conductor structure (110) in the security document (100) and/or in a second position value, which determines a position of the antenna (106) in the security document (100), is stored in the read/write memory of the electronic component (108). Security document (100) according to one of the preceding claims, characterized in that the first characteristic value and/or the second characteristic value differs depending on a security document type. Security document (100) according to one of the preceding claims, characterized in that the antenna (106) of the transponder (104) and the conductor structure (110) consist of different production materials or consist of the same production material and on a common substrate layer surface or on different substrate layer surfaces of the Document body (102) are arranged. Security document (100) according to one of the preceding claims, characterized in that the security document (100) is a passport and comprises a plurality of document parts which are connected to one another in the area of a cover fold (118) and can be pivoted relative to one another, a first document part being replaced by the document body (102), a second document part is formed by a front cover (120), a third document part is formed by a back cover (122) and a fourth document part is formed by at least one document page (124). Security document (100) according to the preceding claim, characterized in that the document body (102) is a personalized data page, the transponder (104) being arranged in the document body (102) and the conductor structure (110) in the front or back cover (120, 122) or wherein the transponder (104) is located in the front or back cover (120, 122) and the conductor structure (110) is located in the document body (102). Security document (100) according to one of the preceding claims, characterized in that the antenna (106) of the transponder (104) is electrically conductively connected to the electronic component (108). Security document (100) according to one of Claims 1 until 10 , characterized in that the transponder is arranged in the document body and the transponder (104) has a module assembly (114) which has at least one module antenna (118) arranged on a dielectric carrier (116) and the electronic module connected to the module antenna (118). Component (108), wherein the antenna (106) of the transponder (104) with the module antenna (118) is inductively coupled. Method for verifying a security document (100) having a conductor structure (110) using a reading device (150), with the steps: - arranging at least a section of a document part of the security document (100) on or on a first side of a support area (156) of the reading device (150); - sending a plurality of reading pulses to the conductor structure (110); - Receiving signal values reflected by the conductor structure (110), wherein a reading antenna (152) of the reading device (150) during transmission and reception by means of a first movement device (160) in a first direction A and by means of a second movement device (170) in a second direction B, which is oriented orthogonally to the first direction, is moved relative to the support area (156) of the reading device (150); and - outputting a first characteristic value of the conductor structure (110) determined from the reflected signal values, the first characteristic value corresponding to a maximum value that can be determined for the first characteristic value. procedure after Claim 13 , characterized in that the method further comprises outputting a first position value assigned to the first characteristic value, the first position value determining a position of the conductor structure (110) in the document part of the security document (100). procedure after Claim 13 , characterized in that the determined first characteristic value is compared with a first reference value for the conductor structure (110) and/or the output first position value is compared with a first position reference value for the conductor structure (110) and the security document (100) as an original or as a counterfeit is issued. Procedure according to one of Claims 13 until 15 , characterized in that the security document (100) comprises a transponder (104) with at least one antenna (106) and an electronic component (108) and the method further comprises a reading from an electronic component (108) of the transponder (104) stored first reference value for the conductor structure (110) and/or a first position reference value for the conductor structure (110). Reading device (150) for a security document (100), comprising - a support area (156) with a first side and a second side opposite the first, wherein on or on the first side a document part of a security document (100) having a conductor structure (110) can be arranged at least in sections; - A tool (158) assigned to the first side of the support area (156) for at least partially applying the document part of the security document (100) to or on the support area (156); - a reading antenna (152) arranged adjacent to the second side of the support area (156), wherein the reading antenna can be positioned in and counter to a first direction by means of a first movement device and in and counter to a second direction oriented orthogonally to the first direction by means of a second movement device, wherein the reader is configured to use a method according to one of Claims 13 until 16 to execute. reader after Claim 17 , characterized in that the reading antenna is coupled to a network analyzer in order to determine a first characteristic value of the conductor structure.

Images