CN215299499U - Terminal device and antenna assembly - Google Patents
Terminal device and antenna assembly Download PDFInfo
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- CN215299499U CN215299499U CN202120463791.7U CN202120463791U CN215299499U CN 215299499 U CN215299499 U CN 215299499U CN 202120463791 U CN202120463791 U CN 202120463791U CN 215299499 U CN215299499 U CN 215299499U
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Abstract
The application discloses a terminal device and an antenna assembly. The capacitive coupling device is used for connecting the terminal body and the antenna to transfer signals between the terminal body and the antenna, wherein the capacitive coupling device is also used for forming an antenna radiator with the antenna to transmit signals to the outside and/or receive signals transmitted from the outside. By the method, the length of the antenna can be shortened under the condition that the length of the effective radiator is not influenced.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a terminal device and an antenna assembly.
Background
With the development of technology, more and more communication terminals are available in the market, wherein some antennas of the communication terminals are disposed inside the communication terminals, and some antennas of the communication terminals are disposed outside the communication terminals, such as walkie-talkies. However, in the existing solutions, the length of the external antenna is generally too long, and it is easy to break and inconvenient to carry, for example, the SMA connector (Small a Type) is a coaxial connector connected through a Small screw, and the screw cannot participate in the radiation of the antenna, if the screw is shortened, the connection is not stable enough, and if the screw is lengthened, the antenna may be too long and easily broken.
SUMMERY OF THE UTILITY MODEL
The technical problem that this application mainly solved provides a terminal device and antenna module for under the condition that does not influence radiator length, shorten antenna length.
In order to solve the above technical problem, a first aspect of the present application provides a terminal apparatus, including: a terminal body; the capacitive coupling device is connected with the terminal body and used for connecting the terminal body and the antenna to transmit signals between the terminal body and the antenna, wherein the capacitive coupling device is also used for forming an antenna radiator with the antenna to transmit signals to the outside and/or receive signals transmitted from the outside.
To solve the above technical problem, a second aspect of the present application provides an antenna assembly, including: an antenna; the capacitive coupling device is connected with the antenna and is used for connecting the antenna and a terminal device so as to transfer signals between the terminal device and the antenna, wherein the capacitive coupling device and the antenna form an antenna radiator for transmitting signals to the outside and/or receiving signals transmitted from the outside.
The beneficial effect of this application is: utilize the capacitive coupling device to connect terminal body and antenna to the capacitive coupling device can constitute the antenna radiation body with the antenna, so the capacitive coupling device itself is as a part of antenna radiation body, need not to rely on the antenna simply to form the antenna radiation body, so under the condition that does not influence the effective radiator length of antenna, can shorten antenna length, and then reduce the possibility of rupture, conveniently carry, promote user experience.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:
FIG. 1 is a schematic diagram of a first structure of an embodiment of a terminal apparatus according to the present application;
FIG. 2 is a partially enlarged view of a connection portion between a terminal body and an antenna in an embodiment of a terminal device of the present application;
FIG. 3 is a schematic diagram of a portion of a capacitive coupling device in an embodiment of a termination apparatus of the present application;
FIG. 4 is a second schematic diagram of a terminal device according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a conventional terminal device in an embodiment of a terminal device of the present application;
FIG. 6 is a schematic diagram of a third structure of an embodiment of a terminal apparatus according to the present application;
fig. 7 is a schematic structural diagram of an embodiment of an antenna assembly of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and fig. 2, fig. 1 is a first structural schematic diagram of an embodiment of a terminal device of the present application, and fig. 2 is a partially enlarged view of a connection portion between a terminal body and an antenna in the embodiment of the terminal device of the present application. The terminal device 1 described in the terminal embodiment of the present application may include: a terminal body 10, a capacitive coupling device 11. Wherein the capacitive coupling device 11 is connected to said terminal body 10.
Various functional components (not shown) such as a radio frequency transceiver (not shown), a controller (not shown), a speaker (not shown), and a microphone (not shown) may be disposed on the terminal body 10. Of course, a keyboard (not shown) and a display (not shown) may be included in addition to these components. The radio frequency transceiver is connected to the antenna 12 and the controller, and is configured to perform a series of processing such as modulation, amplification, and frequency conversion on a baseband signal to be transmitted, and then to enter the signal into a wireless space through the antenna 12 in the form of electromagnetic waves. The controller may be a microprocessor, which may be a central processing unit comprising one or more lsi chips. Wherein the controller controls the speaker to play the signal received by the transceiver. Of course, a microphone may be used to receive voice signals input by a user, a keypad may be used to receive instructions input by a user, and a display may be capable of displaying information. The specific process of transmitting the signal may be that the controller controls the microphone to receive the voice signal input by the user, and the controller controls the radio frequency transceiver to perform a series of processing on the voice signal input by the user, and finally transmit the processed signal to the antenna 12, and the antenna 12 is used to transmit the processed signal. Or the antenna 12 is used to receive the externally transmitted signal, the radio frequency transceiver processes the received signal, and finally the processed signal is played through the loudspeaker.
Wherein, a feeding point 101 is disposed on the terminal body 10, so that the antenna 12 can realize signal transmission with the terminal body 10 through the feeding point 101. The feed point 101 may also be referred to as a feed point.
The capacitive coupling device 11 is used for connecting the terminal body 10 and the antenna 12 to transmit signals between the terminal body 10 and the antenna 12, wherein the capacitive coupling device 11 is also used for forming an antenna radiator with the antenna 12 to transmit signals to the outside and/or receive signals transmitted from the outside. That is, the capacitive coupling device 11 in the disclosed embodiment is essentially a connection between the terminal body 10 and the antenna 12. Specifically, the capacitive coupling device 11 is connected to the feeding point 101 on the terminal body 10, so that when the radio frequency signal formed in the terminal body 10 enters one end of the capacitive coupling device 11 through the feeding point 101, the radio frequency signal can reach the other end from one end of the capacitive coupling device 11 by using the capacitive coupling effect of the capacitive coupling device 11 until the radio frequency signal reaches the antenna 12.
The capacitive coupling device 11 is used for connecting the terminal body 10 and the antenna 12, and the capacitive coupling device 11 and the antenna 12 can form an antenna radiator, so that the capacitive coupling device 11 is used as a part of the antenna radiator, and the antenna radiator is not required to be formed by simply depending on the antenna 12, so that the length of the antenna 12 can be shortened under the condition of not influencing the length of the antenna radiator, the possibility of breakage is further reduced, and the portable terminal is convenient to carry.
Referring also to fig. 3, fig. 3 is a schematic view of a part of the structure of the capacitive coupling device 11 in the embodiment of the terminal apparatus 1 of the present application. As shown in fig. 1-3, the capacitive coupling device 11 includes two conductive plates and a dielectric layer 113 disposed between the two conductive plates, wherein a signal on one conductive plate can be transferred to the other conductive plate by a capacitive coupling effect. One of the conductive plates of the capacitive coupling device 11 is connected to the terminal body 10, and the other conductive plate is used for connecting the antenna 12. Further, the two conductive plates may be metal plates. In the embodiment of the present disclosure, two conductive plates are divided into a first conductive plate 111 and a second conductive plate 112. The first conductive plate 111 is connected to the antenna 12, and the second conductive plate 112 is connected to the terminal body 10.
In some disclosed embodiments, the capacitive coupling device 11 is fixedly disposed on the terminal body 10, and the capacitive coupling device 11 is used for realizing the detachable connection between the terminal body 10 and the antenna 12. Optionally, the capacitive coupling device 11 is fixedly arranged on the first housing 102 of the terminal body 10. The capacitive coupling device 11 is provided with a first connector 114 on a conductive plate for connecting with the antenna 12, and the first connector 114 is used for detachably connecting with a second connector 121 on the antenna 12. Alternatively, the detachable connection manner of the first connector 114 and the second connector 121 may be a screw connection. For example, the first connector 114 may be a metal nut and the second connector 121 may be a metal stud. Of course, in other embodiments, the first connector 114 may also be a stud, the second connector 121 is a nut, or both the first connector 114 and the second connector 121 are nuts, and the first connector 114 and the second connector 121 are respectively connected by other connectors (e.g., bolts), so that the capacitive coupling device 11 can be detachably connected to the antenna 12. Therefore, the specific manner in which the capacitive coupling device 11 is removably connected to the antenna 12 is not specifically specified in this application. In some disclosed embodiments, the first connecting element 114 is a metal nut, the second connecting element 121 is a metal stud, and the metal nut is fixedly disposed on the first housing 102 by injection molding, so that a through hole of the metal nut faces the conductive plate in the capacitive coupling device 11, that is, the position of the first connecting element 114 and the capacitive coupling device 11 is fixed, of course, the first connecting element 114 may or may not contact the capacitive coupling device 11 or the metal nut may be a part of the metal conductive plate extending out, that is, the metal nut and the metal conductive plate are an integral structure. Therefore, the attachment method of the metal nut is not specifically defined here.
Of course, in other embodiments, the capacitive coupling device 11 may be present alone. I.e. the capacitive coupling device 11, can be removably connected to the terminal body 10. For example, the conductive plate of the capacitive coupling device 11 for connection with the terminal body 10 is provided with a first connection sub-piece (not shown) for being detachable with a second connection sub-piece (not shown) provided on the terminal body 10. Optionally, one of the first and second connection sub-pieces is a metal nut and the other is a metal stud. This arrangement also enables the capacitive coupling device 11 to form an antenna radiator with the antenna 12 to transmit and/or receive signals transmitted from the outside. And by making the capacitive coupling element 11 independent from the terminal body 10, when one of the capacitive coupling element 11 and the terminal body 10 is damaged and has to be replaced at a later stage, the other part can be reserved as far as possible, so that the resource expense can be saved.
By arranging the connector as the capacitive coupling device 11, the capacitive coupling device 11 and the antenna 12 can form an antenna radiator because the connector is not shielded by the outer conductor, and the overall length of the antenna 12 can be shortened without affecting the length of the antenna radiator, so that the terminal device 1 can be conveniently carried. The effective communication distance of the terminal device 1 is not shortened because the antenna radiator length is not affected. Experiments show that the overall size of the antenna 12 can be reduced by 15-mm under the condition that the length of the radiating body of the antenna is not influenced by the scheme.
The embodiment of the present disclosure proposes the following scheme to improve the waterproof effect of the terminal device 1. Optionally, the capacitive coupling device 11 is fixedly arranged on the first housing 102 of the terminal body 10. The dielectric layer 113 forms an isolation zone with the first housing 102, wherein the isolation zone is used for isolating spaces on both sides of the dielectric layer. Specifically, the capacitive coupling device 11 is disposed inside the first housing 102, wherein the dielectric layer 113 is integrally molded with the first housing 102 to form the isolation strip. Through the arrangement, liquid such as water cannot reach the other side of the medium layer 113 from the gap between the first connecting piece 114 and the first shell 102 through the medium layer 113, so that the liquid such as water is prevented from entering the inside of the terminal body 10, and the safety of each functional component in the terminal body 10 is further protected.
In some disclosed embodiments, the terminal device 1 further comprises an antenna 12. Referring to fig. 4, fig. 4 is a second structural diagram of the terminal device 1 of the present application. As shown in fig. 4, the capacitive coupling device 11 is located between the antenna 12 and the terminal body 10. At this time, the capacitive coupling device 11 may be fixedly disposed on the terminal body 10 or the antenna 12, or may be fixedly disposed on both the terminal body 10 and the antenna 12, or the capacitive coupling device 11 may be detachably connected to the terminal body 10 and the antenna 12, respectively.
The terminal device 1 mentioned in the embodiments of the present disclosure may be any terminal device. The terminal device 1 can be used in various application scenes, for example, communication scenes such as police and fire scenes. Among them, the terminal device 1 may be a cellular phone, a personal data assistant and a portable computer, an intercom, and the like. Of course, the method can be further specifically divided into a narrow-band interphone, a low-frequency dual-mode terminal, a backpack platform and the like. Of course, these terminals are only for example, and other terminal products externally provided with the antenna 12 may be the terminal device 1 according to the embodiment of the disclosure.
For example, referring to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a conventional terminal device in an embodiment of a terminal device of the present application, and fig. 5 is a schematic structural diagram of a third embodiment of the terminal device of the present application. As shown in fig. 5 and 6, wherein the dotted frames in fig. 5 and 6 both refer to the joints of the terminal body 10 and the antenna 12. The dashed box C1 in fig. 5 is a conventional SMA contact, and the dashed box C2 in the corresponding position in fig. 6 refers to the capacitive coupling device 11 described in the embodiments of the present disclosure. Specifically, the conventional SMA connector in fig. 5 includes an inner conductor and an outer conductor, the inner conductor can be connected to a feed point of the terminal body to implement signal transmission between the terminal body and the antenna, and the outer conductor is to implement position fixing of the antenna and the terminal body so that the inner conductor can contact with the terminal body to implement stability of signal transmission. That is, in the case where the length of the antenna radiator is constant, after the antenna is assembled with the terminal body through the joint of the coaxial structure, the actual antenna length is equal to the joint length plus the length of the antenna itself, which makes the actual antenna length too long to be easily broken. The overall length of the antenna with the SMA contact in fig. 5 is 6.5cm, and the overall length of the antenna is shown by arrow B1 in fig. 5, whereas the overall length of the antenna with the capacitive coupling device 11 contact provided by the embodiment of the present disclosure is 4.5cm, that is, the length shown by arrow B2 in fig. 6, where the length of B2 is mm shorter than the length of B1, which indicates that the overall length of the antenna of the embodiment of the present disclosure is mm shorter than the overall length of the conventional antenna. The antenna radiators have the same length, and the length of the antenna radiator is indicated by arrows a1 and a2 in fig. 5 and 6. Through experiments, the transmitting power and the receiving sensitivity of the two are both 32dBm and-118.5 dBm. And the effective communication distance of both is larger than 3 km. Therefore, the communication effect of the antenna is not influenced after the overall size of the antenna is shortened.
According to the scheme, the joint of the terminal body 10 and the antenna 12 is set as the capacitive coupling device 11, the capacitive coupling device 11 and the antenna 12 can form an antenna radiator, and the whole length of the antenna 12 can be shortened under the condition that the length of the antenna radiator is not influenced, so that the antenna is convenient to carry.
Referring to fig. 7, fig. 7 is a schematic structural view of an embodiment of an antenna assembly of the present application. The antenna assembly 2 described in the antenna assembly embodiments of the present application may include: an antenna 20 and a capacitive coupling device 21.
Wherein the capacitive coupling device 21 is connected to the antenna 20. The connection here may be a detachable connection or a fixed connection, and the connection manner is not specifically specified here. The capacitive coupling device 21 is used to connect the antenna 20 and the terminal device to pass signals between the terminal device and the antenna 20. The capacitive coupling device 21 and the antenna 20 form an antenna radiator for transmitting signals to the outside and/or receiving signals transmitted from the outside.
The capacitive coupling device 21 includes two conductive plates (not shown) and a dielectric layer (not shown) disposed between the two conductive plates, and a signal of one of the two conductive plates can be transmitted to the other conductive plate by a capacitive coupling effect. The relative arrangement relationship between the conductive plate and the dielectric layer can be seen in the above terminal device embodiments. Wherein one of the conductive plates of the capacitive coupling device 21 is connected to the antenna 20 and the other conductive plate is used for connecting the terminal device. The two conductive plates may be metal plates, and in the first embodiment of the present disclosure, the two conductive plates are divided into a third conductive plate and a fourth conductive plate. Wherein the third conductive plate is connected to the antenna 20 and the fourth conductive plate is used for connecting to a terminal device.
In some disclosed embodiments, the capacitive coupling device 21 is fixedly disposed on the antenna 20, and the capacitive coupling device 21 is used to enable the antenna 20 to be detachably connected to the terminal device. Optionally, the capacitive coupling device 21 is fixed to a second housing (not shown) of the antenna 20. Wherein the capacitive coupling device 21 is provided with a third connecting member (not shown) on the conductive plate for connecting with the terminal device, and the third connecting member is provided for connecting with a fourth connecting member provided on the terminal device. Specifically, the third connecting member and the fourth connecting member can be detachably connected. The third connecting piece and the fourth connecting piece are detachably connected in a threaded manner. In a disclosed embodiment, the third connecting member is a metal nut, the fourth connecting member is a metal stud, and the metal nut is fixedly disposed on the second housing by injection molding, so that a through hole of the metal nut faces the conductive plate in the capacitive coupling device 21, and the first connecting member and the capacitive coupling device 21 are fixed in position, but the third connecting member may or may not contact the capacitive coupling device 21. Of course, in other embodiments, the metal nut may be a part of the metal conductive plate extending out, and therefore, the installation manner of the metal nut is not specifically defined herein.
Some disclosed embodiments provide the following technical solutions for improving the waterproof effect of the antenna 20. Optionally, the capacitive coupling device 21 is fixedly disposed on a second housing of the antenna 20, and the dielectric layer and the second housing form an isolation strip, wherein the isolation strip is used for isolating spaces on two sides of the dielectric layer. The capacitive coupling device 21 is fixedly disposed inside the second housing of the antenna 20, wherein the dielectric layer and the second housing are integrally formed to form the isolation strip, so that liquid such as water cannot pass through the gap between the third connector and the second housing and reach the other side of the dielectric layer through the dielectric layer, thereby preventing the liquid such as water from entering the antenna 20, and further protecting the safety inside the antenna 20.
In the above solution, the joint between the antenna assembly 2 and the terminal device is set as the capacitive coupling device 21, the capacitive coupling device 21 and the antenna 20 can form an antenna radiator, and the overall length of the antenna 20 can be shortened without affecting the length of the antenna radiator, so that the antenna is convenient to carry.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.
Claims (10)
1. A terminal device, comprising:
a terminal body;
the capacitive coupling device is connected with the terminal body and used for connecting the terminal body and the antenna to transmit signals between the terminal body and the antenna, wherein the capacitive coupling device is also used for forming an antenna radiator with the antenna to transmit signals to the outside and/or receive signals transmitted from the outside.
2. A terminal device according to claim 1,
the capacitive coupling device comprises two conductive plates and a dielectric layer arranged between the two conductive plates, wherein a signal of one conductive plate of the two conductive plates can be transmitted to the other conductive plate through a capacitive coupling effect, one conductive plate of the capacitive coupling device is connected with the terminal body, and the other conductive plate of the capacitive coupling device is connected with the antenna.
3. A terminal device according to claim 2,
the capacitive coupling device is fixedly arranged on the terminal body and used for achieving detachable connection of the terminal body and the antenna.
4. A terminal device according to claim 3,
and a first connecting piece is arranged on the conductive plate used for being connected with the antenna in the capacitive coupling device, and the first connecting piece is used for being detachably connected with a second connecting piece on the antenna.
5. A terminal device according to claim 4,
the capacitive coupling device is fixedly arranged on a first shell of the terminal body, wherein the dielectric layer and the first shell are integrally formed to form an isolation strip, and the isolation strip is used for isolating spaces on two sides of the dielectric layer.
6. The terminal device of claim 1, further comprising the antenna.
7. An antenna assembly, comprising:
an antenna;
the capacitive coupling device is connected with the antenna and is used for connecting the antenna and a terminal device so as to transfer signals between the terminal device and the antenna, wherein the capacitive coupling device and the antenna form an antenna radiator for transmitting signals to the outside and/or receiving signals transmitted from the outside.
8. The antenna assembly of claim 7,
the capacitive coupling device comprises two conductive plates and a dielectric layer arranged between the two conductive plates, wherein a signal of one conductive plate of the two conductive plates can be transferred to the other conductive plate through a capacitive coupling effect, one conductive plate of the capacitive coupling device is connected with the antenna, and the other conductive plate is used for connecting the terminal device.
9. The antenna assembly of claim 8,
the capacitive coupling device is fixedly arranged on the antenna and used for realizing that the antenna is detachably connected with the terminal device.
10. The antenna assembly of claim 9,
and a third connecting piece is arranged on the conductive plate used for being connected with the terminal device in the capacitive coupling device, and the third connecting piece is used for being detachably connected with a fourth connecting piece on the terminal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120463791.7U CN215299499U (en) | 2021-03-03 | 2021-03-03 | Terminal device and antenna assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120463791.7U CN215299499U (en) | 2021-03-03 | 2021-03-03 | Terminal device and antenna assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215299499U true CN215299499U (en) | 2021-12-24 |
Family
ID=79532886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120463791.7U Active CN215299499U (en) | 2021-03-03 | 2021-03-03 | Terminal device and antenna assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215299499U (en) |
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2021
- 2021-03-03 CN CN202120463791.7U patent/CN215299499U/en active Active
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