Back pasting support antenna suitable for mobile phone Sub-GHz frequency band communication

Abstract

The utility model discloses a back pasting support antenna suitable for mobile phone Sub-GHz frequency band communication, and relates to the technical field of mobile communication and wireless communication, the back pasting support antenna comprises a base fixed on a mobile phone rear cover and a G-shaped support hinged on the base, the G-shaped support comprises a support metal part and a support plastic part, one end of the support metal part is hinged on the base, and the other end of the support plastic part is hinged on the base. The other end of the bracket metal part is hinged and fixed with the bracket plastic part into a whole; the base is a metal ring base, the metal ring base is electrically connected with the support metal part, the metal ring base and a metal ring in the mobile phone form capacitive coupling, and a radio frequency signal in the mobile phone is transmitted to the support metal part through capacitive coupling. According to the utility model, the wireless communication capability of the mobile phone in the Sub-GHz frequency band can be enhanced, the protection on ESD is improved, and the antenna has the advantages of high gain, large bandwidth and low possibility of environmental interference on signals.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile communication, wireless communication technical field, more specifically relates to a kind of back paste support antenna technical field suitable for mobile phone Sub-GHz frequency band communication. BACKGROUND

[0002] With the rapid development of Internet of Things (IoT), Vehicle-to-Everything (V2X) and Low Power Wide Area Network (LPWAN) technologies, Sub-GHz frequency band (400-960MHz) becomes the core communication frequency band for smart home, industrial sensing, asset tracking and other scenarios due to its strong penetration and wide coverage. However, the existing mobile terminal antenna design in Sub-GHz frequency band faces multiple technical bottlenecks:

[0003] 1. Limited performance of built-in antenna: The high integration of internal space of mobile phone leads to insufficient antenna clearance, especially for 433MHz low frequency band with longer wavelength, the efficiency of existing inverted F antenna (PIFA) or slot antenna is generally lower than 10%.

[0004] 2. Fragmented experience of external antenna: Traditional external antenna mostly uses SMA interface or Pogo Pin contact connection, which has three defects:

[0005] 1. Physical contact is easy to oxidize and wear, and may cause poor contact and communication failure after long-term use;

[0006] 2. Exposed contact damages the waterproof and dustproof performance of the device;

[0007] 3. Metal connection point may cause electrostatic discharge (ESD) risk, and additional TVS diode protection is needed to increase circuit complexity.

[0008] 3. Technical blank of functional accessories: market magnetic support products are only used as mechanical components, and the communication potential of support as an external structure has not been explored.

[0009] There is an urgent need to design a new antenna architecture that can break through the physical limitations of built-in antenna while maintaining the integrity of mobile phone industrial design, and solve the inherent defects of external antenna in reliability and environmental adaptability. UTILITY MODEL CONTENT

[0010] The utility model aims at: in order to solve the above technical problem, the utility model provides a kind of back paste support antenna suitable for mobile phone Sub-GHz frequency band communication.

[0011] The utility model adopts the following technical solutions to achieve the above purpose:

[0012] The utility model provides a kind of back paste support antenna suitable for mobile phone Sub-GHz frequency band communication, including fixed on the base of mobile phone back cover and hinged on the base G type support, G type support includes support metal part and support plastic part, one end of support metal part is hinged on the base, the other end of support metal part is hinged and support plastic part is fixed as a whole;

[0013] Base is metal ring base, metal ring base and support metal part form electrical connection, metal ring base and the metal ring in mobile phone form capacitive coupling, and the radio frequency signal in mobile phone is transferred to support metal part by capacitive coupling.

[0014] As shown in Figure 1 G type support is composed of support metal part and support plastic part, support metal part is adjusted to the size suitable for specific frequency point radiation, and is connected to metal ring base by hinge. Metal ring base is relatively large, can form capacitive coupling with the metal ring in mobile phone, and form electrical connection with the support metal part of G type support, and the radio frequency signal in mobile phone is transferred to G type support by capacitive coupling, which can enhance the wireless communication capability of mobile phone in Sub-GHz frequency band, improve the protection of ESD, with the advantages of high gain, large bandwidth, signal not easy to be disturbed by environment.

[0015] The scheme avoids ESD and oxidation risk caused by physical contact through non-contact coupling, and the communication module is deeply integrated with daily accessories (such as support) through structural function reuse; high-efficiency radiation realizes gain≥2dBi and efficiency≥80% in Sub-GHz frequency band, especially in 433M frequency band; support IP67 and above protection level, adapt to temperature / humidity drastic change.

[0016] In one embodiment, the mobile phone camera decoration is located in the middle hollow part of the metal ring base.

[0017] In one embodiment, the support metal part includes a U-shaped metal rod with an opening facing right, the two straight edge segments of the U-shaped metal rod are of different lengths, a support hinge is arranged on the shorter straight edge segment, and the end of the longer straight edge segment is fixed to the support plastic part through a buckle structure, and the U-shaped metal rod is hinged to the metal ring base through the support hinge.

[0018] In one embodiment, the support plastic part is an L-shaped connecting rod, the L-shaped connecting rod includes a longitudinal rod and a transverse rod, the longitudinal rod is connected to the end of the longer straight edge segment of the U-shaped metal rod through a buckle, and the transverse rod is parallel to the bottom of the U-shaped metal rod.

[0019] In one embodiment, a circular-arc chamfer is arranged at the connection between the longitudinal rod of the L-shaped connecting rod and the transverse rod of the L-shaped connecting rod.

[0020] In one embodiment, the U-shaped metal rod and the L-shaped connecting rod are located in the same plane.

[0021] In one embodiment, the metal ring base is provided with a base hinge on one side, and the base hinge is connected with the support hinge through a hinge shaft and a hinge shaft lock.

[0022] In one embodiment, the metal ring base is internally provided with a plurality of convex points connected to the mobile phone camera decoration.

[0023] The beneficial effects of the present application are as follows:

[0024] 1. The present application has reasonable design, can enhance the wireless communication ability of the mobile phone in the Sub-GHz frequency band, improve the protection of ESD, has the advantages of high gain, large bandwidth, and signal not easy to be disturbed by the environment.

[0025] 2. The present application avoids ESD and oxidation risk caused by physical contact through non-contact coupling; the communication module and daily accessories (such as support) are deeply integrated through structure function reuse; high efficiency radiation, gain≥2dBi, efficiency≥80% in Sub-GHz frequency band, especially in 433M frequency band; support IP67 and above protection level, adapt to temperature / humidity drastic change. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 is a structural schematic diagram of the present application.

[0028] Figure 2 is Figure 1 a partial structure explosion schematic diagram of

[0029] MARKED FOR EXPLANATION:

[0030] 1-metal ring base, 2-support metal part, 3-support plastic part, 4-base hinge, 5-support hinge, 6-convex point, 7-hinge shaft, 8-hinge shaft lock. DETAILED DESCRIPTION

[0031] To make the technical problems, technical solutions, and technical effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Example 1

[0036] like Figures 1 to 2 As shown, this utility model provides a back-mounted bracket antenna suitable for Sub-GHz band communication of mobile phones, including a base fixed on the back cover of the mobile phone and a G-type bracket hinged to the base. The G-type bracket includes a bracket metal part 2 and a bracket plastic part 3. One end of the bracket metal part 2 is hinged to the base, and the other end of the bracket metal part 2 is hinged and fixed to the bracket plastic part 3 as a whole.

[0037] The base is a metal ring base 1, which is electrically connected to the metal part of the bracket 2. The metal ring base 1 is capacitively coupled to the metal ring inside the mobile phone, and the radio frequency signal inside the mobile phone is transmitted to the metal part of the bracket 2 through capacitive coupling.

[0038] In this embodiment, as Figure 1As shown, the G-shaped support is composed of a support metal part 2 and a support plastic part 3, the support metal part 2 is adjusted to a size suitable for a specific frequency radiation, and is connected to the metal ring base 1 through a hinge. The metal ring base 1 has a large area, can form a capacitive coupling with the metal ring in the mobile phone, and forms an electrical connection with the support metal part 2 of the G-shaped support. The radio frequency signal in the mobile phone is transmitted to the G-shaped support through capacitive coupling, which can enhance the wireless communication capability of the mobile phone in the Sub-GHz frequency band, improve the protection against ESD, has the advantages of high gain, large bandwidth, and signal not easy to be disturbed by the environment.

[0039] The present scheme avoids ESD and oxidation risks caused by physical contacts through contactless coupling; the structure function is reused to deeply integrate the communication module and daily accessories (such as supports); efficient radiation realizes gain > 2dBi and efficiency > 80% in the Sub-GHz frequency band, especially in the 433M frequency band; supports IP67 and above protection levels, and adapts to drastic changes in temperature / humidity.

[0040] Embodiment 2

[0041] As shown in the drawings, Figures 1 to 2 The utility model provides a back paste support antenna suitable for mobile phone Sub-GHz frequency band communication, including the base fixed on the mobile phone back cover and the G-shaped support articulated on the base, the G-shaped support includes support metal part 2 and support plastic part 3, one end of support metal part 2 is articulated on the base, and the other end of support metal part 2 is articulated and support plastic part 3 is connected through detachable mode;

[0042] The base is a metal ring base 1, the metal ring base 1 forms electrical connection with support metal part 2, the metal ring base 1 forms capacitive coupling with the metal ring in the mobile phone, and the radio frequency signal in the mobile phone is transmitted to support metal part 2 through capacitive coupling.

[0043] The mobile phone camera decoration part is located in the middle hollow part of the metal ring base 1.

[0044] Support metal part 2 includes the U-shaped metal rod of opening right, and the two straight edge sections of U-shaped metal rod are unequal in length, and the shorter straight edge section is provided with support hinge 5, and the longer straight edge section is fixed at the end with support plastic part 3 through buckle structure, and U-shaped metal rod is articulated in the metal ring base 1 through support hinge 5.

[0045] Support plastic part 3 is L-shaped connecting rod, and L-shaped connecting rod includes longitudinal rod and transverse rod, and the end of the longer straight edge section of longitudinal rod is connected with U-shaped metal rod through buckle, and the transverse rod is parallel with the bottom of U-shaped metal rod.

[0046] The connection between the longitudinal rod of L-shaped connecting rod and the transverse rod of L-shaped connecting rod is provided with circular arc chamfer.

[0047] The U-shaped metal rod and the L-shaped connecting rod are located in the same plane.

[0048] Example 3

[0049] This embodiment is further optimized based on Embodiment 1 or Embodiment 2, specifically as follows:

[0050] A base hinge 4 is provided on one side of the metal ring base 1. The base hinge 4 and the bracket hinge 5 are connected by a hinge shaft 7 and a hinge shaft lock 8.

[0051] The metal ring base has multiple raised dots 6 that connect to the decorative parts of the phone camera.

Claims

1. A back-sticking support antenna suitable for mobile phone Sub-GHz band communication, characterized in that, The base is fixed on the back cover of the mobile phone, and the G-shaped support is hinged on the base, the G-shaped support comprises a support metal part and a support plastic part, one end of the support metal part is hinged on the base, and the other end of the support metal part is hinged and fixed with the support plastic part as a whole. The base is a metal ring base, the metal ring base forms an electrical connection with the support metal part, and the metal ring base forms a capacitive coupling with a metal ring inside the mobile phone, and a radio frequency signal inside the mobile phone is transmitted to the support metal part through capacitive coupling.

2. The back-sticking patch antenna for mobile phone Sub-GHz band communication according to claim 1, wherein, The camera decoration of the mobile phone is located in the hollow part of the middle of the metal ring base.

3. The conformal patch antenna of claim 2, wherein, The support metal part comprises a U-shaped metal rod with an opening facing right, two straight edge segments of the U-shaped metal rod are of different lengths, a support hinge is arranged on the shorter straight edge segment, and the longer straight edge segment is fixed with the support plastic part through a buckle structure at the end.

4. The back-sticking patch antenna for mobile phone Sub-GHz band communication according to claim 3, wherein, The support plastic part is an L-shaped connecting rod, the L-shaped connecting rod comprises a longitudinal rod and a transverse rod, and the longitudinal rod is connected with the end of the longer straight edge segment of the U-shaped metal rod through a buckle.

5. The back-sticking patch antenna for mobile phone Sub-GHz band communication according to claim 4, wherein, The transverse rod is parallel to the bottom of the U-shaped metal rod.

6. The conformal patch antenna of claim 4, wherein, The connection between the longitudinal rod of the L-shaped connecting rod and the transverse rod of the L-shaped connecting rod is provided with a circular arc chamfer.

7. The conformal patch antenna of claim 4, wherein, The U-shaped metal rod and the L-shaped connecting rod are located in the same plane.

8. The conformal patch antenna of claim 4, wherein, One side of the metal ring base is provided with a base hinge, and the base hinge is connected with the support hinge through a hinge shaft and a hinge shaft lock.

9. The conformal patch antenna of claim 2, wherein, A plurality of convex points connected to the camera decoration of the mobile phone are arranged inside the metal ring base.

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