An antenna structure of a smart terminal device and a smart terminal device

Abstract

This invention provides an antenna structure for a smart terminal device and the smart terminal device itself. The antenna structure includes an antenna system disposed on the back of the device and abutting against the side cover. The upper frame of the side cover has at least one top gap. In the antenna system, a mobile communication antenna set is used to transmit wireless network signals. A composite function antenna is disposed on the upper frame and the second side frame near the upper frame, and is isolated from the mobile communication antenna set by the top gap, for transmitting spatial positioning signals. This invention, by placing the mobile communication antenna set and the composite function antenna on the upper frame of the side cover and the first and second side frames near the upper frame, concentrates the antenna system at the top of the smart device, eliminating the need for a coaxial cable, reducing the manufacturing cost of the smart terminal device, and improving the antenna performance when the user holds and uses the smart terminal device.

Description

Technical Field

[0001] This invention relates to the field of smart device technology, and more particularly to an antenna structure for a smart terminal device and a smart terminal device. Background Technology

[0002] With the continuous improvement of global information and communication infrastructure and the accelerated popularization of intelligent applications, the demand for 4G smart terminal devices is growing in tandem. Coaxial cable, as a classic radio frequency transmission medium, has long been widely used inside smart terminal devices due to its excellent shielding performance and stable characteristic impedance. It is used to connect the motherboard's radio frequency output port to the antenna radiator located at the bottom of the smart terminal device, ensuring low signal loss and high integrity during transmission. This coaxial cable-based antenna architecture, due to its mature technology, simple design, and reliable performance, is widely used as a standardized configuration in the antenna design of existing 4G smart terminal devices.

[0003] With intensifying market competition and increased cost sensitivity, the material costs of coaxial cables significantly increase the production and processing costs of smart terminal devices under large-scale, high-volume production models. Simultaneously, when users hold smart terminal devices, their hands exert significant electromagnetic interaction with the antenna located at the bottom of the device, leading to a substantial decrease in antenna radiation efficiency. This, in turn, results in reduced communication quality and fluctuating data transmission rates in actual usage scenarios.

[0004] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide an antenna structure for a smart terminal device and a smart terminal device, so as to solve the problems of increased production and processing costs, decreased communication quality, and fluctuating data transmission rate caused by the existing smart terminal device architecture based on coaxial cable connection to the lower antenna.

[0006] The technical solution of the present invention is as follows: This invention provides an antenna structure for a smart terminal device, including an antenna system disposed on the back of the device and abutting against a side cover of the device; the side cover includes: an upper frame, a first side frame, and a second side frame; the upper frame has at least one top gap; the antenna system includes: a mobile communication antenna set and a composite function antenna. The mobile communication antenna set is disposed on the upper frame and the first side frame at one end near the upper frame, and is used to transmit wireless network signals; The composite function antenna is disposed on the upper frame and the second side frame at one end near the upper frame, and is isolated from the mobile communication antenna set through the top gap, for transmitting spatial positioning signals.

[0007] In a further embodiment of the present invention, the first side frame has at least one first gap; the mobile communication antenna set includes a main antenna and a diversity antenna; wherein, The main antenna is mounted on the upper frame. The diversity antenna is disposed at one end of the upper frame and / or the first side frame near the position of the main antenna, and is isolated from the main antenna by the first gap.

[0008] In a further embodiment of the present invention, the diversity antenna includes a low-frequency antenna and a mid-to-high-frequency antenna. The low-frequency antenna is disposed on the first side frame, and the mid-to-high-frequency antenna is disposed on the upper frame and located between the main antenna and the composite functional antenna. The mid-to-high-frequency antenna is isolated from the main antenna through a first top gap, and the mid-to-high-frequency antenna is isolated from the composite functional antenna through a second top gap.

[0009] In a further embodiment of the present invention, the diversity antenna includes a low-medium-high diversity antenna, which is disposed on the first side frame and isolated from the main antenna by a first gap.

[0010] A further provision of the present invention includes a main control board, which is connected to the mobile communication antenna set and the composite function antenna respectively, for bidirectional communication with the mobile communication antenna set and the composite function antenna.

[0011] In a further embodiment of the present invention, the mobile communication antenna set includes at least one of 2G cellular antenna, 3G cellular antenna, and 4G cellular antenna.

[0012] In a further embodiment of the present invention, the composite functional antenna is a GPS / Wi-Fi antenna, which can be reused for satellite positioning and Wi-Fi signal communication.

[0013] In a further embodiment of the present invention, the main control board is provided with an RF module and a main control chip; wherein, the mobile communication antenna set and the composite functional antenna are respectively connected to the RF module; the RF module is connected to the main control chip and is used to collect the transmission signals received by the mobile communication antenna set and the composite functional antenna, and demodulate the transmission signals into received information; simultaneously, it is used to collect the transmission information output by the main control chip, modulate it into a signal to be transmitted, and output the signal to be transmitted to the mobile communication antenna set and the composite functional antenna.

[0014] A further embodiment of the present invention includes at least one auxiliary control board and at least one auxiliary module. The auxiliary control board is disposed at the bottom of the back of the device and is electrically connected to the main control board. The auxiliary control board is provided with an auxiliary control circuit for acquiring data signals output by the main control board and processing the data signals to obtain control signals. Each of the auxiliary modules is electrically connected to the auxiliary control board and is used to collect and implement auxiliary functions based on the control signals.

[0015] Based on the same inventive concept, the present invention provides a smart terminal device, including the antenna structure, body, and device housing of the smart terminal device described above. The upper frame, first side frame, and second side frame of the antenna structure of the smart terminal device are disposed on the upper part of the back of the body with the device housing. The device housing is used for snap-fit ​​assembly with the body and for accommodating the antenna structure of the smart terminal device.

[0016] This invention provides an antenna structure for a smart terminal device and the smart terminal device itself. The antenna structure includes an antenna system disposed on the back of the device and abutting against the side cover. The side cover includes an upper frame, a first side frame, and a second side frame. The upper frame has at least one top gap. The antenna system includes a mobile communication antenna set and a composite antenna. The mobile communication antenna set is disposed on the upper frame and the first side frame near the upper frame, and is used to communicate with a wireless network base station to transmit wireless network signals. The composite antenna is disposed on the upper frame and the second side frame near the upper frame, and is isolated from the mobile communication antenna set by the top gap, and is used to transmit spatial positioning signals. This invention, by placing the mobile communication antenna set and the composite antenna on the upper frame of the side cover and the first and second side frames near the upper frame, concentrates the antenna system above the smart device, eliminating the need for coaxial cables, reducing the manufacturing cost of the smart terminal device, and improving the antenna performance when the user holds and uses the smart terminal device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the antenna structure of smart devices in existing technology.

[0019] Figure 2 This is a schematic diagram of the antenna structure of a smart terminal device on the back of the device in a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the antenna structure of a smart terminal device in another preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the antenna structure of a smart terminal device in the front view of the fuselage in some preferred embodiments of the present invention.

[0022] The labels in the attached diagram are as follows: A1, Existing main antenna; A2, Existing diversity antenna; A3, Existing auxiliary antenna; A4, Bottom board; A5, Coaxial cable; A6, Main board; 10, Side cover; 11, Top frame; 111, Top gap; 1111, First top gap; 1112, Second top gap; 12, First side frame; 121, First gap; 13, Second side frame; 2, Main control board; 3, Auxiliary control board; 1000, Antenna system; 1100, Mobile communication antenna set; 1110, Main antenna; 1120, Diversity antenna; 1121, Low frequency antenna; 1122, Mid-high frequency antenna; 1123, Low-medium-high diversity antenna; 1200, Composite function antenna. Detailed Implementation

[0023] This invention provides an antenna structure for a smart terminal device and a smart terminal device in general. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0024] In the implementation methods and claims, unless otherwise specified in the text, the terms "a," "an," "the," and "the" may also include plural forms. If the embodiments of the present invention involve descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0025] It should be further understood that the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, "connected" or "coupled" as used herein can include wireless connections or wireless coupling. The term "and / or" as used herein includes all or any unit and all combinations of one or more associated listed items.

[0026] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0027] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention. In order to ensure stable transmission and reception of cellular network signals, achieve multi-band coverage, and meet the radiation performance indicators of the whole device in a small space device, this solution usually requires at least one coaxial cable.

[0028] The inventors' research revealed that with the rapid development of global smart technology, the adoption of 4G smart terminal devices from various brands is increasing in regions such as the Middle East and Southeast Asia, with shipments rising significantly and demonstrating enormous potential. This has led to intensified competition among brands and a surge in cost pressures. Therefore, reducing costs and enhancing competitiveness has become an unavoidable challenge for every sector. China's 4G smart terminal device market developed relatively early, and the antenna solutions of various brands are relatively fixed. Existing smart terminal devices generally use coaxial cables for signal transmission to achieve efficient signal feed between the RF front-end module and the antenna radiating element.

[0029] The typical architecture of the mainstream antenna solutions currently used in various brands of 4G smart terminal devices is as follows: Figure 1As shown. This scheme is based on the design concept of spatial diversity and functional partitioning, dividing the antenna system 1000 into an antenna area located at the bottom of the device and an antenna area located at the top of the device, maximizing the physical distance between the antennas to achieve better spatial isolation. For example, in some schemes, the existing main antenna A1, which is responsible for low, medium and high frequency band coverage, is located at the bottom of the device and connected to the bottom board A4. At the same time, the existing diversity antenna A2, which is used to achieve reception diversity, and the existing auxiliary antenna A3, which is used to achieve other functions, are integrated in the top area of ​​the device and are directly connected to the corresponding RF port at the top of the main board A6 through spring clips or connectors. Since the antenna system 1000 architecture is set at the top and bottom of the smart terminal device, and the module positions for antenna signal transmission and data processing are fixed, the signal used for communication by the main antenna 1110 needs to be connected to the main board A6 through the bottom board A4 and a coaxial cable A5, and then the signal is modulated, demodulated and processed by the main board A6 to ensure signal input and output.

[0030] However, the signal transmission between the bottom main antenna 1110 and the motherboard A6 in this existing technical solution relies on the coaxial cable A5. Although the coaxial cable A5 provides stable characteristic impedance and good shielding performance, as an independent physical component, it increases manufacturing costs and introduces additional assembly processes and structural design constraints. Furthermore, at the structural design and overall assembly level, the introduction of the coaxial cable A5 increases the complexity of the terminal's internal structure, occupies internal space in the smart terminal device, leading to decreased production efficiency and introducing potential assembly reliability risks, thus affecting the yield and lifespan of the final product. Secondly, from a user experience perspective, placing the main antenna 1110 at the bottom of the device falls into the area where users most frequently hold the device. Given the common handheld interaction habits of smart terminal devices such as mobile phones and rugged phones, users' palms or fingers easily cover or touch the bottom of the device. Figure 1 The location of the main antenna 1110 is shown in the diagram. When hand tissue enters the near-field region of the antenna, it absorbs radiated energy and changes the boundary conditions of the antenna, causing a sharp drop in the radiation efficiency of the main antenna 1110 and a detuning of the resonant frequency. This leads to an increased risk of dropped calls, fluctuations in data transmission rates, and deterioration of the overall electromagnetic compatibility performance of the device during actual use.

[0031] To address the problems existing in current technologies, such as Figure 2 and Figure 4 As shown, where, Figure 2 This is a schematic diagram showing the distribution of the antenna system on the rear of the fuselage in this invention. Figure 4This is a schematic diagram showing the distribution of the antenna system on the front of the device. The present invention provides an antenna structure for a smart terminal device, including an antenna system 1000. The antenna system 1000 is disposed on the back of the device and abuts against a side cover 10. The side cover 10 includes an upper frame 11, a first side frame 12, and a second side frame 13. The upper frame 11 has at least one top gap 111. The antenna system 1000 includes a mobile communication antenna set 1100 and a composite function antenna 1200. The mobile communication antenna set 1100 is disposed on the upper frame 11 and the first side frame 12 near the upper frame 11, and is used for communication with a wireless network base station. The composite function antenna 1200 is disposed on the upper frame 11 and the second side frame 13 near the upper frame 11, and is isolated from the mobile communication antenna set 1100 through the top gap 111, and is used for transmitting spatial positioning signals.

[0032] Smart terminal devices can be implemented in various forms. For example, the smart terminal devices described in this application may include smart terminal devices such as mobile phones, tablets, laptops, PDAs, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers. Preferably, the smart terminal device can be a mobile phone.

[0033] The mobile communication antenna set 1100 can employ any communication protocol and internally includes at least one communication antenna structure and its corresponding surrounding circuitry. Preferably, it can employ at least one of the following communication technologies: Wi-Fi, RFID (Radio Frequency Identification), NFC (Near Field Communication), ZigBee, Bluetooth, LoRa (Long Range Radio), NB-IoT (Narrow Band Internet of Things), GSM (Global System for Mobile Communications), GPRS (General Packet Radio Service), 2G / 3G / 4G networks, Ethernet, and satellite communication, to enable external communication for smart terminal devices. The mobile communication antenna set 1100 and the composite functional antenna 1200 are respectively disposed on several antenna plates. Antenna structures are disposed on the antenna plates to convert high-frequency electromagnetic energy in the transmission line into electromagnetic waves in free space, and to convert electromagnetic waves in free space into high-frequency electromagnetic energy in the transmission line. The mobile communication antenna set 1100 and the composite function antenna 1200 are isolated by at least one top gap 111. Since both the mobile communication antenna set 1100 and the composite function antenna 1200 are located at the top of the phone's side cover 10, they are physically close to each other, allowing the main antenna 1110 to transmit signals without a coaxial cable A5. Furthermore, the antenna system 1000 is less likely to be obstructed when the user holds the phone vertically, thus improving antenna performance when held in the hand.

[0034] Furthermore, the mobile communication antenna set 1100 includes at least one of a 2G cellular antenna, a 3G cellular antenna, and a 4G cellular antenna. Preferably, it can also be a 2G / 3G / 4G cellular antenna, thereby supporting the 4G communication protocol while being compatible with 2G and 3G communication technologies. The smart terminal device is preferably a low-cost 4G smartphone or a rugged phone to achieve basic communication functions at a low cost. Correspondingly, the composite function antenna 1200 is a GPS / Wi-Fi antenna, which can be used for satellite positioning and Wi-Fi signal communication. Furthermore, the composite function antenna 1200 can be a navigation and connectivity antenna responsible for communication between the Global Positioning System (GPS) and the Wireless Local Area Network (Wi-Fi), or it can be other antennas that can perform multiple functions, which will not be described in detail here.

[0035] Further, the first side frame 12 has at least one first gap 121; the mobile communication antenna set 1100 includes a main antenna 1110 and a diversity antenna 1120; wherein, the main antenna 1110 is disposed on the upper frame 11; the diversity antenna 1120 is disposed on the upper frame 11 and / or the end of the first side frame 12 near the main antenna 1110, and is isolated from the main antenna 1110 by the first gap 121. In this preferred embodiment, the mobile communication antenna set 1100 can be disassembled into a main antenna 1110 and a diversity antenna 1120, wherein the main antenna 1110 is preferably a low-medium-high frequency main antenna 1110, which refers to low-medium-high frequency under the 4G LTE communication standard. The diversity antenna 1120 is used to transmit and receive low-frequency, mid-frequency, and high-frequency signals. It primarily receives signals from external space, thus receiving signals via a different path than the main antenna 1110. Even if the signal at the location of the main antenna 1110 is affected by multipath fading, the diversity antenna 1120 can still receive a stronger signal as an alternative path. Therefore, the smart terminal device can use a baseband chip to combine the two signals, synthesizing a high-quality, high-signal-to-noise ratio original signal to combat signal fading. The low-, mid-, and high-frequency main antenna 1110 can be multiplexed and operate in multiple frequency bands simultaneously, typically ranging from 600MHz to 960MHz and 1710MHz to 2690MHz. By employing a reasonable antenna layout, the number of antennas used in the smart terminal can be reduced. The main antenna 1110 is disposed on the upper frame 11. The diversity antenna 1120 can be disposed on the upper frame 11, or disposed on the first side frame 12 near the main antenna 1110 on the upper frame 11. Alternatively, the diversity antenna 1120 can be disposed in a corner near the upper frame 11, that is, a part of the structure of the diversity antenna 1120 is disposed on the upper frame 11, and another part is disposed on the first side frame 12, and its position is close to the upper frame 11 and the main antenna 1110, thereby reducing the impact on the diversity antenna 1120 when the user holds the device.

[0036] In a preferred embodiment of the present invention, the diversity antenna 1120 includes a low-frequency antenna 1121 and a mid-to-high-frequency antenna 1122. The low-frequency antenna 1121 is disposed on the first side frame 12, and the mid-to-high-frequency antenna 1122 is disposed on the upper frame 11 and located between the main antenna 1110 and the composite function antenna 1200. The mid-to-high-frequency antenna 1122 is isolated from the main antenna 1110 by a first top gap 1111, and the mid-to-high-frequency antenna 1122 is isolated from the composite function antenna 1200 by a second top gap 1112. The entire antenna system 1000 is disposed above the side cover 10 of the device body. Since GPS / Wi-Fi antennas are susceptible to low-frequency harmonic interference, the strong low-frequency radiation generated by the low-frequency antenna 1121 can easily interfere with the operation of the GPS / Wi-Fi antenna, leading to positioning drift, Wi-Fi disconnection, and data rate reduction. Therefore, to further enhance the isolation between antennas, the diversity antenna 1120 is split into a low-frequency antenna 1121 and a mid-to-high frequency antenna 1122. The low-frequency antenna 1121 is located on the first side frame 12 of the side cover 10 of the whole device, and the mid-to-high frequency antenna 1122 is located in the center of the upper frame 11. They are isolated from the main antenna 1110 and the composite function antenna 1200 by two top gaps 111, namely the first top gap 1111 and the second top gap 1112.

[0037] In another preferred embodiment of the invention, such as Figure 3 As shown, the diversity antenna 1120 includes a low-medium-high diversity antenna 1123, which is disposed on the first side frame 12 and isolated from the main antenna 1110 by a first gap 121. That is, in this embodiment, the diversity antenna 1120 can simultaneously multiplex and operate in multiple frequency bands, and the operating frequency range of the low-medium-high diversity antenna 1123 typically includes 700MHz~960MHz and 1710MHz~2690MHz. Using the above antennas in combination with a reasonable layout can reduce the number of antennas used in a smart terminal.

[0038] To further improve the isolation between adjacent antennas, a grounding point can be provided between the mobile communication antenna set 1100 and the composite function antenna 1200 in the antenna system 1000. The grounding of this point can be achieved by connecting a conductor such as a metal spring to ground, or by connecting a tuning switch to ground via frequency selection. Each grounding point can also be used to ground each individual antenna. Simultaneously, the mobile communication antenna set 1100 can adopt a first antenna structure, and the composite function antenna 1200 can adopt a second antenna structure. Several different antenna structures can be selected for the first and second antenna structures, thereby improving the isolation between antennas through different antenna structure designs. Correspondingly, the isolation between the main antenna 1110, diversity antenna 1120, and composite function antenna 1200, between the main antenna 1110, low-medium-high diversity antenna 1123, and composite function antenna 1200, and between the main antenna 1110, low-frequency antenna 1121, mid-high frequency antenna 1122, and composite function antenna 1200 can also be improved by using different antenna radii, which will not be elaborated further here.

[0039] A further provision of the present invention includes a main control board 2, which is connected to the mobile communication antenna set 1100 and the composite functional antenna 1200 respectively, for bidirectional communication with the mobile communication antenna set 1100 and the composite functional antenna 1200. The main control board 2 is provided with a radio frequency module (not shown in the figure) and a main control chip (not shown in the figure); wherein, the mobile communication antenna set 1100 and the composite functional antenna 1200 are respectively connected to the radio frequency module; the radio frequency module is connected to the main control chip, for acquiring the transmission signals received by the mobile communication antenna set 1100 and the composite functional antenna 1200, and demodulating the transmission signals into received information; simultaneously, it is used to acquire the transmission information output by the main control chip, modulate it into a signal to be transmitted, and output the signal to be transmitted to the mobile communication antenna set 1100 and the composite functional antenna 1200.

[0040] The main control board 2 is located near the upper frame 11 of the device body and can be electrically connected to each antenna inside the antenna system 1000 for receiving and / or transmitting signals to the antenna system 1000. Because the main control board 2 is located near the upper frame 11, the mobile communication antenna set 1100 and the composite antenna 1200 can be connected to the radio frequency module on the main control board 2 without passing through the coaxial cable A5. The radio frequency module is responsible for modulating the information to be transmitted to the antenna system 1000 into a signal to be transmitted and transmitting it through the antenna. Simultaneously, it receives the transmitted signal from the antenna system 1000 and demodulates it to obtain processable received information. Further, in some embodiments, the main control board 2 may also be provided with several signal matching circuits. The mobile communication antenna set 1100 and the composite antenna 1200 are respectively connected to each of these signal matching circuits, and each of these signal matching circuits is connected to the main control chip, for performing signal impedance matching between the mobile communication antenna set 1100 and the main control chip, and between the composite antenna 1200 and the main control chip, respectively. It should be noted that the specific structure and connection relationship of the impedance matching circuit can be adjusted according to the impedance matching situation. The specific adjustment method and circuit structure can adopt existing technology, which will not be elaborated here.

[0041] A further embodiment of the present invention includes at least one auxiliary control board 3 and at least one auxiliary module (not shown in the figure). The auxiliary control board 3 is disposed at the bottom of the back of the device and is electrically connected to the main control board 2. The auxiliary control board 3 is provided with an auxiliary control circuit for acquiring data signals output by the main control board 2 and processing the data signals to obtain control signals. Each of the auxiliary modules is electrically connected to the auxiliary control board 3 and is used to acquire and implement auxiliary functions according to the control signals. To simplify and save internal space of the smart terminal device, some circuits on the main control board 2 can be disposed on the auxiliary control board 3, thereby reducing the space occupied on the main control board 2. The auxiliary control board 3 can be disposed in contact with the main control board 2 in the horizontal direction, or it can be disposed in other positions on the device. For example, the auxiliary control board 3 can be used to assist in antenna signal data processing, or it can be connected to auxiliary modules such as the screen cable interface, motor, speaker, and USB, or it can be used to house any other functional modules that may be interfered with by the antenna system 1000, thereby enhancing the isolation between modules within the smart terminal device.

[0042] Based on the same inventive concept, this invention provides a smart terminal device, including the antenna structure, body, and housing described above. The upper frame, first side frame, and second side frame of the antenna structure are disposed on the upper part of the back of the body. The housing is used for snap-fit ​​assembly with the body to accommodate the antenna structure of the smart terminal device. Specific details are as described in the embodiments of the antenna structure of the smart terminal device, and will not be repeated here.

[0043] This invention provides an antenna structure for a smart terminal device and the smart terminal device itself. The antenna structure includes an antenna system disposed on the back of the device and abutting against the side cover. The side cover includes an upper frame, a first side frame, and a second side frame. The upper frame has at least one top gap. The antenna system includes a mobile communication antenna set and a composite antenna. The mobile communication antenna set is disposed on the upper frame and the first side frame near the upper frame, and is used for communication with a wireless network base station. The composite antenna is disposed on the upper frame and the second side frame near the upper frame, and is isolated from the mobile communication antenna set by the top gap, and is used for transmitting spatial positioning signals. This invention, by placing the mobile communication antenna set and the composite antenna on the upper frame of the side cover and the first and second side frames near the upper frame, concentrates the antenna system above the smart device, eliminating the need for coaxial cables, reducing the manufacturing cost of the smart terminal device, and improving the antenna performance when the user holds and uses the smart terminal device.

[0044] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An antenna structure for a smart terminal device, comprising an antenna system, characterized in that, The antenna system of the smart terminal device is located on the back of the device and abuts against the side cover of the device. The side cover includes: an upper frame, a first side frame, and a second side frame; the upper frame has at least one top gap; the antenna system includes: a mobile communication antenna set and a multi-functional antenna. The mobile communication antenna set is disposed on the upper frame and the first side frame at one end near the upper frame, and is used to transmit wireless network signals; The composite function antenna is disposed on the upper frame and the second side frame at one end near the upper frame, and is isolated from the mobile communication antenna set through the top gap, for transmitting spatial positioning signals.

2. The antenna structure of the intelligent terminal device according to claim 1, characterized in that, The first side frame has at least one first gap; the mobile communication antenna set includes a main antenna and a diversity antenna; wherein... The main antenna is mounted on the upper frame. The diversity antenna is disposed at one end of the upper frame and / or the first side frame near the position of the main antenna, and is isolated from the main antenna by the first gap.

3. The antenna structure of the intelligent terminal device according to claim 2, characterized in that, The diversity antenna includes a low-frequency antenna and a mid-to-high-frequency antenna. The low-frequency antenna is disposed on the first side frame, and the mid-to-high-frequency antenna is disposed on the upper frame and located between the main antenna and the composite antenna. The mid-to-high-frequency antenna is isolated from the main antenna through a first top gap, and the mid-to-high-frequency antenna is isolated from the composite antenna through a second top gap.

4. The antenna structure of the intelligent terminal device according to claim 2, characterized in that, The diversity antenna includes a low-medium-high diversity antenna, which is disposed on the first side frame and isolated from the main antenna by a first gap.

5. The antenna structure of the intelligent terminal device according to claim 1, characterized in that, It also includes a main control board, which is connected to the mobile communication antenna set and the composite function antenna respectively, and is used to perform bidirectional communication with the mobile communication antenna set and the composite function antenna.

6. The antenna structure of the intelligent terminal device according to claim 1, characterized in that, The mobile communication antenna set includes at least one of 2G cellular antennas, 3G cellular antennas, and 4G cellular antennas.

7. The antenna structure of the intelligent terminal device according to claim 1, characterized in that, The composite antenna is a GPS / Wi-Fi antenna, which can be used for satellite positioning and Wi-Fi signal communication.

8. The antenna structure of the intelligent terminal device according to claim 5, characterized in that, The main control board is equipped with an RF module and a main control chip; wherein, the mobile communication antenna set and the composite functional antenna are respectively connected to the RF module; the RF module is connected to the main control chip and is used to collect the transmission signals received by the mobile communication antenna set and the composite functional antenna, and demodulate the transmission signals into received information; at the same time, it is used to collect the transmission information output by the main control chip, modulate it into a signal to be transmitted, and output the signal to be transmitted to the mobile communication antenna set and the composite functional antenna.

9. The antenna structure of the intelligent terminal device according to claim 8, characterized in that, It also includes at least one auxiliary control board and at least one auxiliary module. The auxiliary control board is located at the bottom of the back of the machine body and is electrically connected to the main control board. The auxiliary control board is provided with an auxiliary control circuit for collecting data signals output by the main control board and processing the data signals to obtain control signals. Each of the auxiliary modules is electrically connected to the auxiliary control board and is used to collect and implement auxiliary functions based on the control signals.

10. A smart terminal device, characterized in that, The device includes an antenna structure, a body, and a housing as described in any one of claims 1-9. The upper frame, the first side frame, and the second side frame of the antenna structure of the smart terminal device are disposed on the upper part of the back of the body, and the housing is used for snap-fit ​​assembly with the body to accommodate the antenna structure of the smart terminal device.

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