Antenna device and electronic device
By creating vertical slots in the conductor layer opposite to the dielectric layer and combining them with an appropriate feeding mode, the radiation of circularly polarized waves was achieved, solving the problem of excessive area in existing circularly polarized antenna designs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2023-10-17
- Publication Date
- 2026-05-19
AI Technical Summary
Existing circularly polarized antenna designs suffer from the problem of occupying a large area.
By setting a first conductor layer and a second conductor layer on two opposite surfaces of the dielectric layer, and opening at least two slots on the first conductor layer with the slots extending perpendicularly, combined with appropriate feed points and feed modes, the radiation of circularly polarized waves can be achieved.
It effectively reduces the area of the antenna radiator while achieving the radiation of circularly polarized waves, thus solving the problem of a large antenna area.
Smart Images

Figure CN117239403B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic product technology, and in particular to an antenna device and an electronic device. Background Technology
[0002] A circularly polarized wave is a rotating electromagnetic field with equal amplitude. When a circularly polarized wave is reflected, its rotation direction reverses. For example, a right-hand circularly polarized signal becomes a left-hand circularly polarized signal after reflection, and therefore cannot be received by a right-hand circularly polarized antenna. This characteristic of circularly polarized waves allows them to suppress rain and fog interference and resist multipath reflection when applied to navigation or mobile communications. Therefore, circular polarization technology is used in wireless systems such as satellite navigation and satellite communication. Circularly polarized antenna design typically involves exciting two orthogonal, equal-amplitude linearly polarized waves with a 90-degree phase difference. However, current circularly polarized antenna designs suffer from a large antenna footprint. Summary of the Invention
[0003] This application provides an antenna device and electronic device to solve the problem of large antenna area occupied by current circularly polarized antenna designs.
[0004] To solve the above-mentioned technical problems, this application is implemented as follows:
[0005] In a first aspect, embodiments of this application provide an antenna device, comprising: a dielectric layer, a first conductor layer, and a second conductor layer; wherein,
[0006] The first conductor layer is disposed on the first surface of the dielectric layer, and the second conductor layer is disposed on the second surface of the dielectric layer; at least two slots are formed on the first conductor layer, each slot being formed as an opening at the edge of the first conductor layer, and the extension direction of the first slot among the at least two slots is perpendicular to the extension direction of the second slot among the at least two slots; wherein, the first surface and the second surface are disposed opposite to each other;
[0007] When both electrodes of the first feed point of the antenna device are disposed on the first conductor layer, L1 = N1 * (1 / 2) * λ; and / or, when both electrodes of the second feed point and the two electrodes of the feed point of the antenna device are disposed on the first conductor layer and the second conductor layer respectively, L2 = N2 * (1 / 4) * λ; where λ is the wavelength corresponding to the resonant frequency of the antenna device, L1 is the total length of the edge of one of the slots, L2 is the current path length between the second feed point or feed point corresponding to one of the slots and the first edge, the first edge is the edge on the first conductor layer where the opening of the slot is located, N1 is a positive integer and N2 is a positive odd number.
[0008] Secondly, embodiments of this application provide an electronic device including the antenna device described above.
[0009] Thus, in the above-described scheme of this application, a first conductor layer and a second conductor layer are respectively disposed on two surfaces opposite to the dielectric layer. The first conductor layer has at least two slots formed as openings at its edges, wherein the extension direction of the first slot is perpendicular to the extension direction of the second slot, serving as an antenna radiator. Furthermore, by placing both electrodes of the first feed point on the first conductor layer, L1 = N1*(1 / 2)*λ is satisfied; or by placing both electrodes of the second feed point and the two electrodes of the feed point on the first and second conductor layers respectively, L2 = N2*(1 / 4)*λ is satisfied. This allows for the realization of circularly polarized waves by controlling the feeding mode on the two perpendicularly extending slots, effectively reducing the area of the antenna radiator and thus solving the problem of a large antenna area in current circularly polarized antenna designs. Attached Figure Description
[0010] Figure 1 One of the cross-sectional schematic diagrams of the antenna device according to an embodiment of this application;
[0011] Figure 2 One of the schematic diagrams showing the structure of the first conductor layer in an embodiment of this application;
[0012] Figure 3 A second schematic diagram illustrating the structure of the first conductor layer in an embodiment of this application;
[0013] Figure 4 A schematic diagram illustrating L1 and L3 in an embodiment of this application;
[0014] Figure 5 A second cross-sectional schematic diagram illustrating an embodiment of the antenna device of this application;
[0015] Figure 6 A schematic diagram illustrating L2 in an embodiment of this application;
[0016] Figure 7 One of the schematic diagrams illustrating the power supply method of an embodiment of this application;
[0017] Figure 8 This is one of the structural schematic diagrams of the power supply control module according to an embodiment of this application;
[0018] Figure 9 One of the schematic diagrams illustrating the control logic of the power supply control module in an embodiment of this application;
[0019] Figure 10 A second schematic diagram illustrating the power supply method of an embodiment of this application;
[0020] Figure 11 One of the schematic diagrams illustrating L4 in an embodiment of this application;
[0021] Figure 12 The third schematic diagram illustrating the power supply method of an embodiment of this application;
[0022] Figure 13 A second schematic diagram illustrating the control logic of the power supply control module in an embodiment of this application;
[0023] Figure 14 Fourth schematic diagram illustrating the power supply method of an embodiment of this application;
[0024] Figure 15 A second schematic diagram illustrating L4 in an embodiment of this application;
[0025] Figure 16 Fifth schematic diagram illustrating the power supply method of an embodiment of this application;
[0026] Figure 17 A second schematic diagram illustrating the structure of the power supply control module according to an embodiment of this application;
[0027] Figure 18 The third schematic diagram illustrating the control logic of the power supply control module in an embodiment of this application;
[0028] Figure 19 Sixth schematic diagram illustrating the power supply method of an embodiment of this application;
[0029] Figure 20 Schematic diagram seven illustrating the power supply method of an embodiment of this application;
[0030] Figure 21 One of the schematic diagrams showing the structure of the slot in an embodiment of this application;
[0031] Figure 22 A second schematic diagram illustrating the structure of the slot in an embodiment of this application;
[0032] Figure 23 The third schematic diagram illustrating the structure of the first conductor layer in an embodiment of this application;
[0033] Figure 24 Fourth schematic diagram illustrating the structure of the first conductor layer in an embodiment of this application;
[0034] Figure 25 Fifth schematic diagram illustrating the structure of the first conductor layer in an embodiment of this application;
[0035] Figure 26 This is a schematic diagram illustrating the structure of an electronic device according to an embodiment of this application. Detailed Implementation
[0036] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.
[0037] like Figures 1 to 3 As shown, this application provides an antenna device, including: a dielectric layer 1, a first conductor layer 2, and a second conductor layer 3; wherein, the first conductor layer 2 is disposed on a first surface of the dielectric layer 1, and the second conductor layer 3 is disposed on a second surface of the dielectric layer 1; at least two slots 21 are formed on the first conductor layer 2, each slot 21 being formed as an opening at the edge of the first conductor layer 2, and the extension direction of the first slot 211 of the at least two slots 21 is perpendicular to the extension direction of the second slot 212 of the at least two slots 21; wherein, the first surface and the second surface are disposed opposite to each other.
[0038] Optionally, the number of slots 21 formed on the first conductor layer 2 is greater than or equal to 2. Each slot 21 is formed as an opening at the edge of the first conductor layer 2, and the different slots 21 are not connected, that is, there is a gap between the different slots 21. The first conductor layer 2 is formed as the antenna radiator. Among the at least two slots 21 formed on the first conductor layer 2, for one slot, there is another slot with an extension direction perpendicular to it. In this way, by controlling the feeding mode of these two slots, a circularly polarized antenna can be formed (which will be specifically described in the following embodiments). Figure 2 As shown, an example of setting two slots 21 on the first conductor layer 2 is given. This allows for switching between circularly polarized waves of different rotation directions by controlling the feeding mode on these two slots, and can significantly reduce the area of the antenna radiator. For example... Figure 3 As shown, an example of setting four slots 21 on the first conductor layer 2 is given (e.g.) Figure 2 and Figure 3 In this embodiment, the extension direction of the first slot 211 is perpendicular to the extension direction of the second slot 212. This allows for the switching of circularly polarized waves with different rotation directions and / or simultaneous transmission and reception of circularly polarized waves with different rotation directions by controlling the feeding mode on these four slots, and also reduces the area of the antenna radiator. Of course, the specific number of slots 21 in this embodiment is not limited to this.
[0039] Optionally, the shape and size of each slot 21 can be the same (e.g., Figure 2 , Figure 3 (as shown in the figure). Of course, the shapes of different slots 21 can also be different (as will be specifically described in the following embodiments), and the embodiments of this application are not limited thereto.
[0040] This application provides an example where the first conductor layer 2 and the slot 21 are rectangular in shape, and the opening of the slot 21 is located at the edge of the rectangle. It should be noted that the shape of the first conductor layer 2 can also be other polygonal or arc-shaped structures, as long as the slot 21 forms an opening at the edge of the first conductor layer 2. The edge of the slot 21 can be an open rectangle, arc, or polygonal shape, etc., and this application is not limited to this.
[0041] like Figure 4 As shown, when both electrodes of the first feed point 20 of the antenna device are set in the first conductor layer 2, L1 = N1 * (1 / 2) * λ is satisfied; where λ is the wavelength corresponding to the resonant frequency of the antenna device, L1 is the total length of the edge of the slot 21, and N1 is a positive integer.
[0042] It should be noted that the two electrodes of the first feed point 20 specifically refer to the positive and negative electrodes of the first feed point 20 (e.g., ...). Figure 4 In the diagram, "+" indicates the positive terminal and "-" indicates the negative terminal.
[0043] Optionally, in actual design, a certain amount of manufacturing and measurement error is allowed between L1 and λ. For example, L1 and λ can satisfy: L1=N1*(1 / 2)*λ+σ, where σ is an error parameter (such as actual manufacturing error, measurement error, etc.). That is, theoretically, the total length of the edge of slot 21 is a positive integer multiple of half the wavelength corresponding to the resonant frequency of the antenna device (i.e., N1*(1 / 2)*λ), and a certain amount of manufacturing and measurement error is allowed.
[0044] like Figure 5 and Figure 6 As shown, when the two electrodes of the second feed point 22 and the two electrodes of the feed point 23 of the antenna device are respectively set in the first conductor layer 2 and the second conductor layer 3, L2 = N2*(1 / 4)*λ is satisfied; where λ is the wavelength corresponding to the resonant frequency of the antenna device, L2 is the current path length between the second feed point 22 or the feed point 23 corresponding to the slot 21 and the first edge, the first edge is the edge on the first conductor layer 2 where the opening of the slot 21 is located, and N2 is a positive odd number.
[0045] It should be noted that the two electrodes of the second feed point 22 and the two electrodes of the feed point 23 are respectively located on the first conductor layer 2 and the second conductor layer 3. Specifically, this means that the two electrodes of the second feed point 22 are respectively located on the first conductor layer 2 and the second conductor layer 3. For example, one electrode of the second feed point 22 is located on the first conductor layer 2, and the other electrode is located on the second conductor layer 3. (Here, "one electrode" refers to one of the positive and negative electrodes of the second feed point 22, and "the other electrode" refers to the other of the positive and negative electrodes of the second feed point 22.) Figure 5 In the diagram, "+" indicates the positive electrode and "-" indicates the negative electrode; and the two electrodes of feed point 23 are respectively disposed on the first conductor layer 2 and the second conductor layer 3. For example, one electrode of feed point 23 is disposed on the first conductor layer 2, and the other electrode is disposed on the second conductor layer 3 (here, "one electrode" refers to one of the positive and negative electrodes of feed point 23, and "the other electrode" refers to the other of the positive and negative electrodes of feed point 23, such as...). Figure 5 In the diagram, "+" indicates the positive terminal and "-" indicates the negative terminal.
[0046] Optionally, in actual design, a certain amount of manufacturing and measurement error is allowed between L2 and λ. For example, L2 and λ can satisfy: L2=N2*(1 / 4)*λ+σ; where σ is an error parameter (such as actual manufacturing error, measurement error, etc.). That is, theoretically, the current path length between the second feed point 22 or feed point 23 corresponding to a slot 21 and the first edge is a positive odd multiple of one-quarter of the wavelength corresponding to the resonant frequency of the antenna device (N2*(1 / 4)*λ), and a certain amount of manufacturing and measurement error is allowed.
[0047] by Figure 6 Taking the structure of the first conductor layer 2 as an example, the current path length between the second feed point 22 or feed point 23 corresponding to a slot 21 and the first edge is shown by the dashed line L2. For example, L2 can be further described as: the minimum current path between the second feed point 22 or feed point 23 corresponding to a slot 21 and the edge of the slot 21 (the position of the minimum current path is denoted as position A), the minimum edge length from position A to the opening of the slot 21 (the position of the minimum edge length is denoted as position B), and the minimum edge length from position B to the first edge. Here, "the second feed point 22 or feed point 23 corresponding to a slot 21" refers to the electrode position set on the first conductor layer 2 in the second feed point 22 or feed point 23 corresponding to the slot 21.
[0048] In this embodiment, a first conductor layer 2 and a second conductor layer 3 are respectively disposed on two surfaces opposite to the dielectric layer 1. The first conductor layer 2 has at least two slots 21 formed as openings at its edges, wherein the extension direction of the first slot 211 is perpendicular to the extension direction of the second slot 212, serving as an antenna radiator. Furthermore, by placing both electrodes of the first feed point 20 on the first conductor layer 2, L1 = N1*(1 / 2)*λ is satisfied; or by placing both electrodes of the second feed point 22 and the two electrodes of the feed point 23 on the first conductor layer 2 and the second conductor layer 3 respectively, L2 = N2*(1 / 4)*λ is satisfied. This allows for the control of the feeding mode on the two perpendicularly extending slots to achieve circularly polarized waves, effectively reducing the area of the antenna radiator and solving the problem of large antenna area in current circularly polarized antenna designs.
[0049] Optionally, when both electrodes of the first feed point 20 of the antenna device are disposed in the first conductor layer 2, each slot 21 corresponds to a different first feed point 20; wherein, the two electrodes of the first feed point 20 corresponding to each slot 21 are disposed at the edge of the slot 21, and the two electrodes of the first feed point 20 are disposed opposite to each other.
[0050] like Figure 7 As shown, taking the first conductor layer 2 with four slots 21 as an example, these four slots 21 include: a first slot 211, a second slot 212, a third slot 213, and a fourth slot 214. The edge of the first slot 211 is provided with a first feed point 201 (wherein, the positive "+" and negative "-" terminals of the first feed point 201 are located at the edge of the first slot 211 and are positioned opposite each other); the edge of the second slot 212 is provided with a first feed point 202 (wherein, the positive "+" and negative "-" terminals of the first feed point 202 are located at the edge of the second slot 212 and are positioned opposite each other). The edge of the third slot 213 is provided with a first feed point 203 of the third slot (wherein, the positive "+" and negative "-" of the first feed point 203 of the third slot are on the edge of the third slot 213 and are arranged opposite to each other); the edge of the fourth slot 214 is provided with a first feed point 204 of the fourth slot (wherein, the positive "+" and negative "-" of the first feed point 204 of the fourth slot are on the edge of the fourth slot 214 and are arranged opposite to each other).
[0051] Optionally, when both electrodes of the first feed point 20 of the antenna device are disposed in the first conductor layer 2, the following conditions are also met: 1 / 4L1 < L3 < 1 / 2L1; where L3 is the current path length between the first feed point 20 corresponding to the slot 21 and the opening of the slot 21.
[0052] Please continue reading. Figure 4 The current path length between the first feed point 20 corresponding to the slot 21 and the opening of the slot 21 is shown by the dashed line L3. For example, when the first feed point 20 is not located at the edge of the slot 21 (e.g., at a certain distance from the edge), L3 can be further described as: the sum of the minimum current path (the position of the minimum current path is denoted as the first position) between the positive "+" or negative "-" terminal of the first feed point 20 corresponding to the slot 21 and the minimum edge length from the first position to the opening of the slot 21. For example, when the first feed point 20 is located at the edge of the slot 21, L3 can be further described as: the minimum edge length between the positive "+" or negative "-" terminal of the first feed point 20 corresponding to the slot 21 and the opening of the slot 21.
[0053] Optionally, based on the relationship 1 / 4L1 < L3 < 1 / 2L1, L3 can take a suitable value between 1 / 4L1 and 1 / 2L1. For example, a suitable value of L3 can be selected according to the actual antenna design requirements, taking into account factors such as resonant impedance. The embodiments of this application are not limited thereto.
[0054] like Figure 8 As shown, the antenna device further includes a power supply control module 4; wherein, when each first power supply point 20 of the antenna device corresponds to a slot 21, the power supply control module 4 is connected to each first power supply point 20.
[0055] The power supply control module 4 can be switched between multiple modes. Specifically, in the first mode, the antenna device transmits and receives circularly polarized waves with a first rotation direction; in the second mode, the antenna device transmits and receives circularly polarized waves with a second rotation direction; in the third mode, the antenna device transmits and receives both circularly polarized waves with the first and second rotation directions; wherein the circularly polarized waves with the first and second rotation directions are two orthogonal circularly polarized waves.
[0056] by Figure 7Taking the structure of the first conductor layer 2 and the setting of the first feed point 20 as an example, each of the four slots corresponds to a first feed point. The feed control module 4 can be connected to the positive and negative poles of these four feed points respectively. By controlling the feed mode of these four feed points, it is possible to transmit and receive circularly polarized waves with different rotation directions, as well as to transmit and receive circularly polarized waves with multiple rotation directions at the same time.
[0057] Optionally, the power supply control module 4 includes multiple phase shifters; wherein different modes correspond to different phase combinations of the multiple phase shifters. Alternatively, the power supply control module 4 includes multiple energy storage elements; wherein different modes correspond to different parameter value combinations of the multiple energy storage elements; wherein the parameter values include capacitance and / or inductance values. It should be noted that the multiple phase shifters can be distributed or centrally arranged; the multiple energy storage elements can also be distributed or centrally arranged, and this embodiment is not limited thereto.
[0058] Optionally, taking the power supply control module 4 as an example, which includes multiple phase shifters, the power supply control module 4 on the first conductor layer 2 can further be connected to the radio frequency transceiver 5 through the multiple phase shifters. For example, continuing with... Figure 7 Taking the structure of the first conductor layer 2 and the setting of the first feed point as an example, the specific connection method between multiple phase shifters and the RF transceiver 5 is as follows: Figure 8 As shown, contact point F1 (e.g., the first feed point 201 of the first slot) is connected to the RF transceiver 5 through phase shifter P1; contact point F2 (e.g., the first feed point 201 of the second slot) is connected to the RF transceiver 5 through phase shifter P2; contact point F3 (e.g., the first feed point 201 of the third slot) is connected to the RF transceiver 5 through phase shifter P3; and contact point F4 (e.g., the first feed point 201 of the fourth slot) is connected to the RF transceiver 5 through phase shifter P4.
[0059] The power supply control module 4 is used to achieve the control of Figure 7 Taking the power supply mode control of the four slots as an example, the specific power supply mode is as follows: Figure 9As shown. When powered in mode 1, phase shifter P1 corresponds to phase 0, phase shifter P2 corresponds to phase 90 degrees, phase shifter P3 corresponds to phase 180 degrees, and phase shifter P4 corresponds to phase 270 degrees. Therefore, the antenna device can transmit and receive circularly polarized waves in the first rotation direction. When powered in mode 2, phase shifter P1 corresponds to phase 0, phase shifter P2 corresponds to phase -90 degrees, phase shifter P3 corresponds to phase -180 degrees, and phase shifter P4 corresponds to phase -270 degrees. Therefore, the antenna device can transmit and receive circularly polarized waves in the second rotation direction. When powered in mode 3, phase shifter P1 corresponds to phase 0, phase shifter P2 corresponds to phase 90 degrees, phase shifter P3 corresponds to phase 0 degrees, and phase shifter P4 corresponds to phase -90 degrees. Therefore, the antenna device can simultaneously transmit and receive circularly polarized waves in the first and second rotation directions. Thus, the antenna device in this embodiment can switch between transmitting and receiving two types of circularly polarized waves with different rotation directions, or it can transmit and receive two types of circularly polarized waves with different rotation directions simultaneously.
[0060] Optionally, when the two electrodes of the second feed point 22 and the two electrodes of the feed point 23 of the antenna device are respectively disposed in the first conductor layer 2 and the second conductor layer 3, each slot 21 corresponds to a different second feed point 22, and the at least two slots 21 correspond to one feed point 23.
[0061] Each first electrode is disposed at the first end of the slot 21 corresponding to the second feed point 22. The first electrode is one of the electrodes of the second feed point 22 (e.g., positive or negative electrode), and the first end is the end away from the opening along the extension direction of the slot 21. The second electrode is disposed at the center of the first conductor layer 2. The second electrode is one of the electrodes of the feed point 23 (e.g., positive or negative electrode).
[0062] like Figure 10As shown, taking the first conductor layer 2 with four slots as an example, these four slots include: a first slot 211, a second slot 212, a third slot 213, and a fourth slot 214. The first slot 211 corresponds to the second feed point 221 of the first slot (one electrode of the second feed point 221 is located at the end away from the opening along the extension direction of the first slot 211, for example, the other electrode is located at the orthogonal projection position of one of the electrodes on the second conductor layer 3); the second slot 212 corresponds to the second feed point 222 of the second slot (one electrode of the second feed point 222 is located at the end away from the opening along the extension direction of the second slot 212, for example, the other electrode is located at the orthogonal projection position of one of the electrodes on the second conductor layer 3). The third slot 213 corresponds to the second feed point 223 of the third slot (one electrode of the second feed point 223 of the third slot is located at the end away from the opening along the extension direction of the third slot 213, for example, the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3); the fourth slot 214 corresponds to the second feed point 224 of the fourth slot (one electrode of the second feed point 224 of the fourth slot is located at the end away from the opening along the extension direction of the fourth slot 214, for example, the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3). Furthermore, these four slots correspond to a feed point 23, one electrode of which is located at the center of the first conductor layer 2 (e.g., the geometric center), and the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3. It should be noted that "one electrode" here can be one of the positive and negative electrodes, and "the other electrode" can be the other of the positive and negative electrodes.
[0063] Optionally, when the two electrodes of the second feed point 22 and the two electrodes of the feed point 23 of the antenna device are respectively disposed in the first conductor layer 2 and the second conductor layer 3, L4 < L2 is also satisfied; where L4 is the current path length between the second feed point 22 and the feed point 23 corresponding to the slot 21.
[0064] like Figure 11As shown, the current path length between the second feed point 22 corresponding to the slot 21 and the feed point 23 is represented by the dashed line L4. For example, L4 can be further described as: the distance from the second electrode of the feed point 23 to the first reference line (the location of this distance on the first reference line is position C) and the distance between position C and the first electrode of the second feed point 22 corresponding to the slot 21. The first reference line is perpendicular to the extension direction of the slot 21, the first electrode is the electrode disposed on the first conductor layer 2 at the second feed point 22 (this electrode can be a positive or negative electrode), and the second electrode is the electrode disposed on the first conductor layer 2 at the feed point 23 (this electrode can be a positive or negative electrode).
[0065] Optionally, based on the relationship L4 < L2, L4 can take a suitable value within a range less than L2. For example, a suitable value of L4 can be selected based on actual antenna design requirements, considering factors such as resonant impedance. The embodiments of this application are not limited thereto.
[0066] like Figure 12 As shown, an example is given of a first conductor layer 2 having two slots, including a first slot 211 and a second slot 212; wherein, the first slot 211 corresponds to the second feed point 221 of the first slot, the second slot 212 corresponds to the second feed point 222 of the second slot, and the setting position of a feed point 23 corresponding to these two slots can be found in [reference needed]. Figure 12 Specifically, it should also satisfy L2=N2*(1 / 4)*λ and L4<L2, without making specific restrictions here.
[0067] Please continue reading. Figure 8 The antenna device further includes a power supply control module 4; wherein, when each second power supply point 22 of the antenna device corresponds to a slot 21, the power supply control module 4 is connected to each second power supply point 22.
[0068] The power supply control module 4 is switchable between multiple modes; in the first mode, the antenna device transmits and receives circularly polarized waves of a first rotation direction; in the second mode, the antenna device transmits and receives circularly polarized waves of a second rotation direction; in the third mode, the antenna device transmits and receives both circularly polarized waves of the first and second rotation directions; wherein the circularly polarized waves of the first and second rotation directions are two orthogonal circularly polarized waves.
[0069] by Figure 10Taking the structure of the first conductor layer 2 and the setting of the second feed point and feed location as an example, each of the four slots corresponds to a second feed point. The feed control module 4 can be connected to the positive and negative poles of these four second feed points respectively. By controlling the feed mode of these four second feed points, it is possible to transmit and receive circularly polarized waves with different rotation directions, as well as to transmit and receive circularly polarized waves with multiple rotation directions at the same time.
[0070] Optionally, the power supply control module 4 includes multiple phase shifters; wherein different modes correspond to different phase combinations of the multiple phase shifters. Alternatively, the power supply control module 4 includes multiple energy storage elements; wherein different modes correspond to different parameter value combinations of the multiple energy storage elements; wherein the parameter values include capacitance and / or inductance values. It should be noted that the multiple phase shifters can be distributed or centrally arranged; the multiple energy storage elements can also be distributed or centrally arranged, and this embodiment is not limited thereto.
[0071] Optionally, taking the power supply control module 4 as an example, which includes multiple phase shifters, the second power supply point on the first conductor layer 2 can be further connected to the radio frequency transceiver 5 through the multiple phase shifters. For example, continuing with... Figure 10 Taking the structure of the first conductor layer 2 and the setting of the second feed point and feed location as an example, contact point F1 (such as the second feed point 221 of the first slot) is connected to the RF transceiver 5 through phase shifter P1; contact point F2 (such as the second feed point 222 of the second slot) is connected to the RF transceiver 5 through phase shifter P2; contact point F3 (such as the second feed point 223 of the third slot) is connected to the RF transceiver 5 through phase shifter P3; and contact point F4 (such as the second feed point 224 of the fourth slot) is connected to the RF transceiver 5 through phase shifter P4.
[0072] The power supply control module 4 is used to achieve the control of Figure 10 Taking the power supply mode control of the four slots as an example, the specific power supply mode is as follows: Figure 13As shown. When powered in mode 1, phase shifter P1 corresponds to phase 0, phase shifter P2 corresponds to phase 90 degrees, phase shifter P3 corresponds to phase 180 degrees, and phase shifter P4 corresponds to phase 270 degrees. Therefore, the antenna device can transmit and receive circularly polarized waves in the first rotation direction. When powered in mode 2, phase shifter P1 corresponds to phase 0, phase shifter P2 corresponds to phase -90 degrees, phase shifter P3 corresponds to phase -180 degrees, and phase shifter P4 corresponds to phase -270 degrees. Therefore, the antenna device can transmit and receive circularly polarized waves in the second rotation direction. When powered in mode 3, phase shifter P1 corresponds to phase 0, phase shifter P2 corresponds to phase 90 degrees, phase shifter P3 corresponds to phase 0 degrees, and phase shifter P4 corresponds to phase -90 degrees. Therefore, the antenna device can simultaneously transmit and receive circularly polarized waves in the first and second rotation directions. Thus, the antenna device in this embodiment can switch between transmitting and receiving two types of circularly polarized waves with different rotation directions, or it can transmit and receive two types of circularly polarized waves with different rotation directions simultaneously.
[0073] Optionally, when the two electrodes of the second feed point 22 and the two electrodes of the feed point 23 of the antenna device are respectively disposed in the first conductor layer 2 and the second conductor layer 3, the at least two slots 21 correspond to one second feed point 22, and each slot 21 corresponds to a different feed point 23.
[0074] The first electrode is located at the center of the first conductor layer 2, and the first electrode is one of the electrodes of the second feed point 22; each second electrode is located at the second end of the slot corresponding to the feed point 23, and the second electrode is one of the electrodes of the feed point 23, and the second end is the end close to the opening.
[0075] like Figure 14As shown, taking the first conductor layer 2 with four slots as an example, these four slots include the first slot 211, the second slot 212, the third slot 213, and the fourth slot 214. Wherein, the first slot 211 corresponds to the first feed point 231 (one electrode of the first feed point 231 is located at the end near the opening of the first slot 211, for example, the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3); the second slot 212 corresponds to the second feed point 232 (one electrode of the second feed point 232 is located at the end near the opening of the second slot 212, for example, the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3); the third slot 213 corresponds to the third feed point 233 (one electrode of the third feed point 233 is located at the end near the opening of the third slot 213, for example, the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3); the fourth slot 214 corresponds to the fourth feed point 234 (one electrode of the fourth feed point 234 is located at the end near the opening of the fourth slot 214, for example, the other electrode is located at the orthogonal projection position of the one electrode on the second conductor layer 3). Furthermore, each of the four slots corresponds to a second feed point 22. One electrode of the second feed point 22 is located at the center of the first conductor layer 2 (e.g., the geometric center), and the other electrode is located at the orthogonal projection position of the first electrode onto the second conductor layer 3. It should be noted that "one electrode" here can be either a positive or a negative electrode, and "the other electrode" can be either a positive or a negative electrode.
[0076] Optionally, when the two electrodes of the second feed point 22 and the two electrodes of the feed point 23 of the antenna device are respectively disposed in the first conductor layer 2 and the second conductor layer 3, L4 < L2 is also satisfied; where L4 is the current path length between the feed point 23 corresponding to the slot 21 and the second feed point 22.
[0077] like Figure 15As shown, the current path length between the feed point 23 corresponding to the slot 21 and the second feed point 22 is represented by the dashed line L4. For example, L4 can be further described as: the distance from the first electrode of the second feed point 22 to the first reference line (the position of this distance on the first reference line is position D), the distance from the second electrode of the feed point 23 to the first reference line (the position of this distance on the first reference line is position E), and the sum of the distances between positions C and E. The first reference line is perpendicular to the extension direction of the slot 21. The first electrode is the electrode disposed on the first conductor layer 2 at the second feed point 22 (this electrode can be a positive or negative electrode), and the second electrode is the electrode disposed on the first conductor layer 2 at the feed point 23 (this electrode can be a positive or negative electrode).
[0078] Optionally, based on the relationship L4 < L2, L4 can take a suitable value within a range less than L2. For example, a suitable value of L4 can be selected based on actual antenna design requirements, considering factors such as resonant impedance. The embodiments of this application are not limited thereto.
[0079] like Figure 16 As shown, an example is given in which two slots are formed in the first conductor layer 2, including a first slot 211 and a second slot 212; wherein, the first slot 211 corresponds to the first feed point 231, the second slot 212 corresponds to the second feed point 232, and the setting position of a second feed point 22 corresponding to these two slots can be found in [reference needed]. Figure 16 Specifically, it should also satisfy L2=N2*(1 / 4)*λ and L4<L2, without making specific restrictions here.
[0080] like Figure 17 As shown, the antenna device further includes a power supply control module 4; wherein, when each feed point 23 of the antenna device corresponds to a slot 21, the power supply control module 4 is connected to each feed point 23.
[0081] The power supply control module 4 is switchable between multiple modes; in the first mode, the antenna device transmits and receives circularly polarized waves of a first rotation direction; in the second mode, the antenna device transmits and receives circularly polarized waves of a second rotation direction; in the third mode, the antenna device transmits and receives both circularly polarized waves of the first and second rotation directions; wherein the circularly polarized waves of the first and second rotation directions are two orthogonal circularly polarized waves.
[0082] by Figure 14Taking the structure of the first conductor layer 2 and the setting of the second feed point and feed location as an example, each of the four slots corresponds to a feed location. The feed control module 4 can be connected to the positive and negative poles of these four feed locations respectively. By controlling the feed mode of these four feed locations, it is possible to transmit and receive circularly polarized waves with different rotation directions, as well as to transmit and receive circularly polarized waves with multiple rotation directions at the same time.
[0083] Optionally, the power supply control module 4 includes multiple phase shifters; wherein different modes correspond to different phase combinations of the multiple phase shifters. Alternatively, the power supply control module 4 includes multiple energy storage elements; wherein different modes correspond to different parameter value combinations of the multiple energy storage elements; wherein the parameter values include capacitance and / or inductance values. It should be noted that the multiple phase shifters can be distributed or centrally arranged; the multiple energy storage elements can also be distributed or centrally arranged, and this embodiment is not limited thereto.
[0084] Optionally, taking the power supply control module 4 as an example, which includes multiple energy storage elements, the feed point on the first conductor layer 2 can be further connected to the radio frequency transceiver 5 through the multiple energy storage elements. For example, continuing with... Figure 14 Taking the structure of the first conductor layer 2 and the arrangement of the second feed point and feed location as an example, feed location S1 is grounded through energy storage element Q1; feed location S2 is grounded through energy storage element Q2; feed location S3 is grounded through energy storage element Q3; and feed location S4 is grounded through energy storage element Q4. It should be noted that the parameter values of the energy storage element can be capacitance and / or inductance, that is, the energy storage element can exhibit capacitive and / or inductive properties.
[0085] The power supply control module 4 is used to achieve the control of Figure 14 Taking the power supply mode control of the four slots as an example, the specific power supply mode is as follows: Figure 18As shown. When powered in mode 1, the energy storage element Q1 corresponds to inductance value L1, energy storage element Q2 corresponds to inductance value L2, energy storage element Q3 corresponds to inductance value L3, and energy storage element Q4 corresponds to inductance value L4, with L1>L2>L3>L4. Therefore, the antenna device can transmit and receive circularly polarized waves in the first rotation direction. When powered in mode 2, the energy storage element Q1 corresponds to capacitance value C1, energy storage element Q2 corresponds to capacitance value C1, energy storage element Q3 corresponds to capacitance value C3, and energy storage element... Q4 corresponds to capacitance C4, and C1>C2>C3>C4, so the antenna device can transmit and receive circularly polarized waves of the second rotation direction. When fed according to mode 3, energy storage element Q1 corresponds to inductance L1, energy storage element Q2 corresponds to inductance L2, energy storage element Q3 corresponds to capacitance C3, and energy storage element Q4 corresponds to capacitance C4, and L1>L2, C3>C4, so the antenna device can simultaneously transmit and receive circularly polarized waves of the first and second rotation directions. Thus, the antenna device in this embodiment can switch between transmitting and receiving circularly polarized waves of two rotation directions, or it can transmit and receive circularly polarized waves of two rotation directions simultaneously.
[0086] like Figure 19 and Figure 20 As shown in the embodiment of this application, an example of a configuration method in which two sets of feed points and feed locations are provided on the first conductor layer 2 is provided. For example, a first feed point 20 is provided on the first conductor layer 2, and both electrodes of the first feed point 20 are provided on the first conductor layer 2; and another set of second feed points 22 and feed locations 23 is provided, and the two electrodes of the second feed points 22 and feed locations 23 are respectively provided on the first conductor layer 2 and the second conductor layer 3.
[0087] in, Figure 19 The middle is the general Figure 7 and Figure 10 By combining the settings of the feed points and feed locations, and controlling the feed of these two sets of feed points and feed locations, the effect of dual-frequency operation or simultaneous operation of two types of circularly polarized waves with different rotation directions can be achieved. Furthermore, by adjusting the dimensions of L1, L3 and L2, L4 to correspond to different resonant frequencies, dual-frequency circularly polarized waves can be obtained. Furthermore, by adjusting the feed modes of one set of first feed points 20 and the other set of second feed points 22, the rotation direction of the dual-frequency circularly polarized waves can be controlled separately.
[0088] in, Figure 20 The middle is the general Figure 7 and Figure 14By combining the settings of the feed points and feed locations, and controlling the feed of these two sets of feed points and feed locations, dual-frequency operation or simultaneous operation of two types of circularly polarized waves with different rotation directions can be achieved. Furthermore, by adjusting the dimensions of L1, L3 and L2, L4 to correspond to different resonant frequencies, dual-frequency circularly polarized waves can be obtained. Furthermore, by adjusting the feed modes of one set of first feed points 20 and the other set of second feed points 22, the rotation direction of the dual-frequency circularly polarized waves can be controlled separately.
[0089] like Figure 21 and Figure 22 As shown, the first slot 211 includes: a first main body portion 2110 and a first extension portion 2111 with different extension directions; the first main body portion 2110 and the first extension portion 2111 are connected, and the first main body portion 2110 forms an opening at the edge of the first conductor layer 2; wherein, the extension direction of the first main body portion 2110 is perpendicular to the extension direction of the second slot 212.
[0090] And / or,
[0091] The second slot 212 includes: a second main body portion 2120 and a second extension portion 2121 with different extension directions; the second main body portion 2120 and the second extension portion 2121 are connected, and the second main body portion 2120 forms an opening at the edge of the first conductor layer 2; wherein, the extension direction of the second main body portion 2120 is perpendicular to the extension direction of the first slot 211, or the extension direction of the second main body portion 2120 is perpendicular to the extension direction of the first main body portion 2110.
[0092] See details Figure 21In the at least two slots 21 formed in the first conductor layer 2, for the first slot 211 and the second slot 212 with perpendicular extension directions, the end of the first slot 211 away from the opening can be set as a bent extension (that is, the extension directions of the first main body portion 2110 and the first extension portion 2111 are different), in which case the extension direction of the first main body portion 2110 is perpendicular to the extension direction of the second slot 212; or, the end of the second slot 212 away from the opening can be set as a bent extension (that is, the extension directions of the second main body portion 2120 and the second extension portion 2121 are different). In this case, the extension direction of the second main body portion 2120 is perpendicular to the extension direction of the first slot 211; or, the end of the first slot 211 away from the opening can be set as a bent extension (i.e., the extension directions of the first main body portion 2110 and the first extension portion 2111 are different) and the end of the second slot 212 away from the opening can be set as a bent extension (i.e., the extension directions of the second main body portion 2120 and the second extension portion 2121 are different), in which case the extension direction of the second main body portion 2120 is perpendicular to the extension direction of the first main body portion 2110. In this way, by setting the end of the first slot 211 and / or the second slot 212 away from the opening as a bent extension, the size of the first conductor layer can be further reduced, that is, the area of the antenna radiator can be further reduced.
[0093] It should be noted that when the end of the first slot 211 and / or the second slot 212 away from the opening is set as a bent extension, the bending angle can be 90 degrees or other angles less than 180 degrees, etc., and the embodiments of this application are not limited thereto.
[0094] See details Figure 22In the at least two slots 21 formed in the first conductor layer 2, for the first slot 211 and the second slot 212 with perpendicular extension directions, the width of the first slot 211 can be expanded at the middle position (that is, a first extension portion 2111 formed at the middle position of the first main body portion 2110, with an extension direction different from that of the first main body portion 2110 and connected to the first main body portion 2110), in which case the extension direction of the first main body portion 2110 is perpendicular to the extension direction of the second slot 212; or, the width of the second slot 212 can be expanded at the middle position (that is, a second extension portion 2111 formed at the middle position of the second main body portion 2120, with an extension direction different from that of the second main body portion 2120 and connected to the second main body portion 2120). 121), at this time, the extension direction of the second main body portion 2120 is perpendicular to the extension direction of the first slot 211; or, the first slot 211 is provided to expand the width of the slot at the middle position (that is, a first extension portion 2111 is opened at the middle position of the first main body portion 2110, which is different from the extension direction of the first main body portion 2110 and connected to the first main body portion 2110) and the second slot 212 is provided to expand the width of the slot at the middle position (that is, a second extension portion 2121 is opened at the middle position of the second main body portion 2120, which is different from the extension direction of the second main body portion 2120 and connected to the second main body portion 2120), at this time, the extension direction of the second main body portion 2120 is perpendicular to the extension direction of the first main body portion 2110. In this way, by setting the first slot 211 and / or the second slot 212 to expand the width of the slot at the middle position, the frequency band coverage of the antenna device can be increased, so that the antenna device can cover more operating frequency bands at the same time and realize the transmission and reception of multiple circularly polarized waves in multiple frequency bands.
[0095] It should be noted that when the first slot 211 and / or the second slot 212 are set to expand the width of the slot at the middle position, the angle between the extension direction of the main body and the extension part can be 90 degrees, or other angles less than 180 degrees, etc., and the embodiments of this application are not limited thereto.
[0096] like Figures 23 to 25 As shown, the antenna device further includes at least one of the following:
[0097] At least one first coupling radiator 24, each of the first coupling radiators 24 being disposed opposite an opening of one of the slots 21;
[0098] At least one second coupling radiator 25 is provided, each second coupling radiator 25 is disposed opposite to an opening of the slot 21, and one end of the second coupling radiator 25 is connected to the first conductor layer 2.
[0099] See details Figure 23 The first coupling radiator 24 can be positioned directly opposite an opening of the slot 21, and there is a gap between the first coupling radiator 24 and the first conductor layer 2. The specific size of the first coupling radiator 24 and the size facing the opening can be designed according to the actual required antenna operating frequency band. This application embodiment does not make specific limitations.
[0100] For details, see Figure 24 and Figure 25 As shown, the second coupling radiator 25 can be positioned directly opposite an opening in the slot 21, and the first end of the second coupling radiator 25 can be connected to the first conductor layer 2 (e.g., Figure 24 (as shown); or, the second end of the second coupling radiator 25 can be connected to the first conductor layer 2 (as shown). Figure 25 As shown, the specific connection position between the second coupled radiator 25 and the first conductor layer 2, the size of the second coupled radiator 25, and the size facing the opening can be designed according to the actual antenna operating frequency band to be covered. This application embodiment does not make specific limitations.
[0101] In this embodiment, by setting a first coupling radiator 24 and / or a second coupling radiator 25 in the antenna device, the frequency band coverage of the antenna device can be increased, so that the antenna device can cover more operating frequency bands at the same time and realize the transmission and reception of multiple circularly polarized waves in multiple frequency bands.
[0102] This application also provides an electronic device including the antenna device described in at least one of the above embodiments. Optionally, as... Figure 26 As shown, the antenna device 10 can be disposed inside the body below the back cover 11 of the electronic device. This electronic device can achieve the same technical effects as the antenna device described in at least one of the above embodiments; therefore, to avoid repetition, it will not be described again here.
[0103] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0104] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.
[0105] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.
[0106] The above describes the preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles described in this application, and these improvements and modifications are also within the protection scope of this application.
Claims
1. An antenna device, characterized in that, include: Dielectric layer, first conductor layer and second conductor layer; wherein, The first conductor layer is disposed on the first surface of the dielectric layer, and the second conductor layer is disposed on the second surface of the dielectric layer; at least two slots are formed on the first conductor layer, each slot being formed as an opening at the edge of the first conductor layer, and the extension direction of the first slot among the at least two slots is perpendicular to the extension direction of the second slot among the at least two slots; wherein, the first surface and the second surface are disposed opposite to each other; When both electrodes of the first feed point of the antenna device are disposed on the first conductor layer, L1 = N1 * (1 / 2) * λ; and / or, when both electrodes of the second feed point and the two electrodes of the feed point of the antenna device are disposed on the first conductor layer and the second conductor layer respectively, L2 = N2 * (1 / 4) * λ; where λ is the wavelength corresponding to the resonant frequency of the antenna device, L1 is the total length of the edge of one of the slots, L2 is the current path length between the second feed point or feed point corresponding to one of the slots and the first edge, the first edge is the edge on the first conductor layer where the opening of the slot is located, N1 is a positive integer, and N2 is a positive odd number.
2. The antenna device according to claim 1, characterized in that, When both electrodes of the first feed point of the antenna device are disposed in the first conductor layer, each slot corresponds to a different first feed point; In this configuration, the two electrodes of the first feed point corresponding to each slot are located at the edge of the slot, and the two electrodes of the first feed point are arranged opposite to each other.
3. The antenna device according to claim 1, characterized in that, When both electrodes at the first feed point of the antenna device are disposed in the first conductor layer, the following conditions are also met: 1 / 4L1 < L3 < 1 / 2L1. Wherein, L3 is the current path length between the feed point corresponding to the slot and the opening of the slot.
4. The antenna device according to claim 1, characterized in that, When the two electrodes of the second feed point and the two electrodes of the feed point of the antenna device are respectively disposed in the first conductor layer and the second conductor layer, each slot corresponds to a different second feed point, and the at least two slots correspond to a feed point; Each first electrode is disposed at the first end of the slot corresponding to the second feed point. The first electrode is one of the electrodes of the second feed point, and the first end is the end away from the opening along the extension direction of the slot. The second electrode is disposed at the center of the first conductor layer. The second electrode is one of the electrodes of the feed point.
5. The antenna device according to claim 1, characterized in that, When the two electrodes of the second feed point and the two electrodes of the feed point of the antenna device are respectively disposed in the first conductor layer and the second conductor layer, the at least two slots correspond to one second feed point, and each slot corresponds to a different feed point; The first electrode is disposed at the center of the first conductor layer and is one of the electrodes of the second feed point; each second electrode is disposed at the second end of the slot corresponding to the feed point and is one of the electrodes of the feed point, and the second end is the end close to the opening.
6. The antenna device according to claim 1, 4, or 5, characterized in that, When the two electrodes at the second feed point and the two electrodes at the feed point of the antenna device are respectively disposed in the first conductor layer and the second conductor layer, L4 < L2 is also satisfied. Wherein, L4 is the current path length between the second feed point corresponding to the slot and the feed point.
7. The antenna device according to claim 1, characterized in that, The first slot includes: a first main body portion and a first extension portion with different extension directions; the first main body portion and the first extension portion are connected, and the first main body portion forms an opening at the edge of the first conductor layer; wherein, the extension direction of the first main body portion is perpendicular to the extension direction of the second slot. And / or, The second slot includes: a second main body portion and a second extension portion with different extension directions; the second main body portion and the second extension portion are connected, and the second main body portion forms an opening at the edge of the first conductor layer; wherein the extension direction of the second main body portion is perpendicular to the extension direction of the first slot, or the extension direction of the second main body portion is perpendicular to the extension direction of the first main body portion.
8. The antenna device according to claim 1, characterized in that, It also includes at least one of the following: At least one first coupled radiator, each of the first coupled radiators being positioned directly opposite an opening of one of the slots; At least one second coupling radiator is provided, each second coupling radiator being disposed opposite an opening of one of the slots, and one end of the second coupling radiator is connected to the first conductor layer.
9. The antenna device according to claim 1, characterized in that, The antenna device further includes: a power supply control module; wherein... When each first feed point of the antenna device corresponds to a slot, the feed control module is connected to each first feed point; or, when each second feed point of the antenna device corresponds to a slot, the feed control module is connected to each second feed point; or, when each feed point of the antenna device corresponds to a slot, the feed control module is connected to each feed point. The power supply control module can be switched between multiple modes; in the first mode, the antenna device transmits and receives circularly polarized waves of the first rotation direction; in the second mode, the antenna device transmits and receives circularly polarized waves of the second rotation direction; in the third mode, the antenna device transmits and receives circularly polarized waves of the first rotation direction and circularly polarized waves of the second rotation direction. Among them, the first spiral-directed circularly polarized wave and the second spiral-directed circularly polarized wave are two orthogonal circularly polarized waves.
10. The antenna device according to claim 9, characterized in that, The power supply control module includes multiple phase shifters; wherein, different modes correspond to different phase combinations of the multiple phase shifters. or, The power supply control module includes multiple energy storage elements; wherein, different modes correspond to different combinations of parameter values of the multiple energy storage elements; wherein, the parameter values include capacitance values and / or inductance values.
11. An electronic device, characterized in that, Includes the antenna device as described in any one of claims 1 to 10.