Multiplex card carrier and mobile terminal

Abstract

The embodiment of the application provides a multiplex card holder and a mobile terminal, the multiplex card holder is used for being installed in a card slot of the mobile terminal, and the multiplex card holder comprises a card holder body, an antenna, a feeding point and a feeding point, at least one SIM card insertion cavity is arranged on the card holder body, the antenna is at least formed on one side end surface of the card holder body along a thickness direction, the antenna is arranged along an outer periphery of the SIM card insertion cavity, the feeding point and the feeding point are arranged on an outer side wall of the card holder body, the feeding point is electrically connected with a radiation end of the antenna, and the feeding point is electrically connected with a grounding point of the antenna, wherein the feeding point and the feeding point are configured to be electrically connected with corresponding contact points of the mobile terminal, by arranging the antenna on the card holder body, the antenna setting position limit can be reduced, the antenna performance is improved, and the anti-interference capability is enhanced.

Description

Technical Field

[0001] This application relates to the field of mobile terminal technology, specifically to a multiplexed SIM card tray and a mobile terminal. Background Technology

[0002] With the explosive growth in demand for 5G communication and multi-band support, the number of antennas inside mobile terminals has surged. Meanwhile, the trend towards thinner and lighter terminals has reduced available space by more than 40%. This contradiction is particularly prominent in full-screen devices, and antenna layout has become a key bottleneck restricting terminal performance.

[0003] In related technologies, the SIM card tray is made of non-metallic material, and a tray-coupled antenna coil parallel to the SIM card antenna is embedded in the ring around the SIM card in the tray. In this technical solution, the metal contacts of the SIM card form a Faraday cage effect, which attenuates signals above 3 GHz and affects antenna performance.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] This application provides a multiplexed SIM card tray and mobile terminal to achieve the technical effects of improving antenna performance and enhancing anti-interference capabilities.

[0006] In a first aspect, embodiments of this application provide a reusable card tray, comprising:

[0007] The card tray body has at least one SIM card insertion cavity.

[0008] The antenna is formed at least on one end face of the card tray body along the thickness direction and is disposed along the outer periphery of the SIM card insertion cavity;

[0009] The feed point is located on the outer wall of the card holder body and is electrically connected to the radiating end of the antenna.

[0010] The feed point is located on the outer wall of the cassette body and is electrically connected to the grounding terminal of the antenna.

[0011] The power supply point and the power supply location are configured to be electrically connected to the corresponding contact of the mobile terminal.

[0012] By incorporating a SIM card insertion cavity into the card tray, compatibility with existing SIM card specifications is achieved. The antenna is molded onto one side of the card tray body, utilizing unused space on the tray surface and saving antenna layout area within the mobile terminal. Positioning the antenna along the outer periphery of the SIM card insertion cavity isolates interference from the SIM card's metal contacts, improving antenna efficiency. Placing the feed point and feed location on the outer wall allows for blind-plug connection with the mobile terminal's flexible contacts.

[0013] In one possible implementation, the antenna forms an unclosed loop path along the outer periphery of the SIM card insertion cavity on one end face of the SIM card tray body along the thickness direction, and the antenna and the SIM card tray body are coplanar.

[0014] In one possible implementation, the antenna is configured as an IFA antenna, which includes a radiating arm, a first end of which is connected to a feed point, and a second end of which is connected to the feed point.

[0015] By connecting the two ends of the radiating arm to the feed point and feed location respectively, the input impedance of the antenna can be precisely adjusted by changing the length and shape of the radiating arm and the positions of the feed point and feed location. This allows for a good match between the input impedance of the antenna and the impedance of the RF front-end circuit, reducing signal reflection loss during transmission and significantly improving the antenna's energy conversion efficiency and signal transmission and reception sensitivity.

[0016] In one possible implementation, an antenna half-ring is disposed on the upper surface of the cassette body, and the antenna includes a first radiating segment and a second radiating segment separately disposed therefrom, the first radiating segment being connected to the feed point and the second radiating segment being connected to the feed point.

[0017] By attaching the antenna semi-ring to the upper surface of the card tray, the unused planar space of the card tray can be fully utilized, avoiding the occupation of the installation area of ​​other core components inside the device. This is especially suitable for highly integrated portable devices. At the same time, the separate design of the first and second radiating segments allows for flexible adjustment of the position and orientation of the two segments according to the shape, openings, and other structural features of the card tray, achieving optimal antenna layout without affecting the card tray's card insertion function.

[0018] In one possible implementation, the feed point is set as a floating trace, which is located on one end face of the card holder body along the thickness direction, and the floating trace forms a capacitive coupling with the ground plane of the mobile terminal.

[0019] Floating cabling eliminates the need for physical contact with the ground plane (such as welding or spring-loaded connections), reducing stringent requirements for component assembly precision and avoiding structural stress and wear issues caused by mechanical connections. Simultaneously, it eliminates complex conductive connectors, simplifying the integration structure of the antenna and mobile terminal components, thereby reducing manufacturing costs and improving assembly efficiency and product reliability.

[0020] In one possible implementation, the multiplexed antenna includes a SIM card holder, which is positioned on the side of the SIM card holder body away from the feed point; when the SIM card holder body is installed in place, the end face of the SIM card holder away from the SIM card holder body is flush with the outer end face of the mobile terminal.

[0021] When the SIM card tray is installed in place, the end face of the SIM card tray cap furthest from the tray body is flush with the outer surface of the mobile terminal, preventing the SIM card tray cap from protruding or sinking into the terminal's outer surface. This keeps the outer surface of the mobile terminal flat and continuous, improving the overall aesthetics of the product and meeting users' demands for a refined appearance, thus enhancing the user's visual experience.

[0022] In one possible implementation, the antenna includes a substrate, a copper layer, and a nickel layer, with the copper layer attached to the surface of the substrate and the nickel layer covering the copper layer, wherein the thickness of the copper layer is 2um-4um and the thickness of the nickel layer is 8um-12um.

[0023] The thin copper and nickel layers allow the antenna to meet basic signal transmission requirements, providing a stable path for signal transmission. The nickel layer effectively isolates the antenna from moisture and corrosive substances in the external environment, reducing the oxidation and corrosion of the copper layer. It also improves the overall wear resistance of the antenna, maintaining the integrity of the copper layer even under long-term use or slight friction, ensuring the stability of the antenna's conductivity and extending its lifespan.

[0024] At the same time, the antenna is attached to the surface of the card tray body to avoid the antenna affecting the movement process of the card tray body.

[0025] Secondly, embodiments of this application provide a mobile terminal, including:

[0026] The housing has a slot.

[0027] The first aspect is a multiplex card holder, which is installed in a card slot.

[0028] The aforementioned mobile terminal integrates the antenna into the SIM card tray, making full use of the unused space around the SIM card tray. This eliminates the need for a separate installation area for the antenna, reducing the space occupied by the antenna and making the internal structure of the mobile terminal more compact.

[0029] In one possible implementation, the mobile terminal includes:

[0030] The first elastic element is disposed in the card slot, and the first elastic element is pluggably connected to the power supply point of the multiplex card holder.

[0031] The first elastic element has elastic deformation capability. When the card tray is inserted into the card slot, it can make close contact with the power supply point through its own elasticity. Even if there are slight assembly errors or position fluctuations during the insertion and removal of the card tray, it can maintain a good electrical connection and reduce signal interruption or attenuation caused by poor contact.

[0032] In one possible implementation, the mobile terminal includes:

[0033] The second elastic element is located in the card slot, and the second elastic element is pluggably connected to the feed point of the multiplex card holder.

[0034] In the above embodiments, the second elastic element has elastic deformation capability. When the card tray is inserted into the card slot, it can make close contact with the feed point through its own elasticity. Even if there are slight assembly errors or position fluctuations during the insertion and removal of the card tray, it can maintain a good electrical connection and reduce signal interruption or attenuation caused by poor contact.

[0035] This flexible contact method avoids problems such as loosening and poor connection that are prone to occur with rigid connections, ensuring the continuity of signal transmission between the antenna and the internal circuitry of the mobile terminal and improving communication quality. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0037] Figure 1 This is a schematic diagram of the structure of the reusable card tray provided in the embodiments of this application;

[0038] Figure 2 Another perspective structural schematic diagram of the multiplexer provided in the embodiments of this application;

[0039] Figure 3 An exploded view of the multiplexer provided in the embodiments of this application;

[0040] Figure 4 A schematic diagram illustrating the installation of the reusable card tray and housing provided in an embodiment of this application;

[0041] Figure 5 A schematic diagram of the structure of a multiplexer provided in another embodiment of this application;

[0042] Figure 6 A schematic diagram of the structure of a reusable card tray provided in another embodiment of this application;

[0043] Figure 7 This is a schematic diagram of the structure of a reusable card tray provided in another embodiment of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100-Multiplex card tray; 10-Card tray body; 11-SIM card insertion cavity; 20-Antenna; 30-Feed point;

[0046] 40 - Feed point; 50 - Cato cap; 70 - Radiation arm;

[0047] 81 - First radiation section; 82 - Second radiation section; 90 - Shell.

[0048] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0050] In related technologies, the SIM card tray is made of non-metallic material, and a tray coupling antenna coil parallel to the SIM card antenna is embedded in the ring around the SIM card mounting cavity of the tray. In this technical solution, the metal contacts of the SIM card form a Faraday cage effect, which will attenuate some signals and affect the antenna performance.

[0051] The multiplexed SIM card tray and mobile terminal provided in this application include a SIM card tray body. An antenna is integrated on one end face of the SIM card tray body along the thickness direction. The antenna is arranged along the outer periphery of the SIM card insertion cavity, which can isolate the interference of the metal contacts of the SIM card and improve the antenna efficiency.

[0052] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0053] Example 1

[0054] This application provides a multiplexed card tray 100, which serves as a core component in a mobile terminal for carrying a SIM card. Figure 1 This is a schematic diagram of the structure of the reusable card tray proposed in the embodiments of this application. Figure 2 This is a schematic diagram of the structure of the reusable card holder proposed in an embodiment of this application from another perspective.

[0055] Reference Figure 1 , Figure 2 As shown, the multiplexer SIM card tray 100 includes a tray body 10, on which at least one SIM card insertion cavity 11 is provided for placing a SIM card. The SIM card insertion cavity is configured as a recess structure according to the standard size of a SIM card.

[0056] The boundary of the SIM card insertion cavity 11 forms an area for installing the SIM card. The internal contour of the SIM card insertion cavity 11 is perfectly adapted to the shape of the SIM card, ensuring that the SIM card will not wobble or shift after being inserted.

[0057] Reference Figure 1 As shown, the multiplexer SIM card tray 100 includes two SIM card insertion cavities 11, which are arranged side-by-side or vertically, and maintain a certain distance from each other to avoid electromagnetic interference after the SIM cards are installed. This dual-cavity design can meet the functional requirements of dual SIM dual standby mobile terminals.

[0058] In some implementations, the multiplexer can also be configured to include a SIM card insertion cavity 11. This single insertion cavity design is typically suitable for mobile terminals with extremely high requirements for device thinness or where users only need to use a single SIM card. By reducing the number of insertion cavities, the volume of the card tray body 10 can be further reduced, freeing up more space for other components inside the terminal.

[0059] It is important to emphasize that the number of SIM card insertion cavities 11 is not fixed. Those skilled in the art can flexibly adjust the number based on factors such as the design positioning of the mobile terminal, the usage habits of the target user group, and updates to industry technical standards. For example, some models may be designed with three SIM card insertion cavities, while entry-level models may only have one. Therefore, this embodiment does not specifically limit the number of SIM card insertion cavities 11, as long as it enables stable installation of the SIM card and antenna.

[0060] The multiplexer 100 includes an antenna 20, a feed point 30, and a feed point 40. The antenna 20, feed point 30, and feed point 40 work together to achieve effective signal transmission and reception.

[0061] The antenna 20 is formed on at least one end face of the card tray body 10 along the thickness direction. The antenna 20 is disposed along the outer periphery of the SIM card insertion cavity 11 and is distributed in a ring shape around the edge of the SIM card insertion cavity 11.

[0062] It should be noted that the thickness direction of the card holder body 10 is vertical, and the antenna 20 can be formed on the upper or lower surface, or it can be formed on both end faces at the same time according to the signal coverage requirements.

[0063] This setup makes full use of the unused space on the end face of the 10-inch card holder, without requiring additional space inside the mobile terminal.

[0064] This layout can form an "electromagnetic barrier" by using the antenna's own metal plating (such as copper or nickel layers), effectively isolating the electromagnetic interference generated when the SIM card's metal contacts are working, reducing interference with the antenna signal, thereby improving the antenna's radiation efficiency and receiving sensitivity, and ensuring the stability of communication quality.

[0065] Feed point 30 and feed point 40 are located on the outer wall of the cassette body 10, and are independent of each other and spaced apart. Feed point 30 is stably electrically connected to the radiating end of antenna 20, transmitting the electrical signal output from the mobile terminal's radio frequency circuit to antenna 20, which then converts the electrical signal into electromagnetic waves for radiation. Feed point 40 is electrically connected to the grounding end of antenna 20, providing a stable grounding reference for antenna 20 and ensuring impedance matching and signal loop integrity.

[0066] To ensure good conductivity and connection reliability, feed point 30 and feed point 40 are set as metal contacts. They are usually made of metal materials with excellent conductivity, such as copper and nickel, and the surface is treated with anti-oxidation to extend service life.

[0067] These two metal contacts are precisely constructed to match the size and shape of the corresponding elastic contacts in the mobile terminal. When the multiplexer 100 is inserted into the card slot of the mobile terminal, the power supply point 30 and the power supply point 40 can automatically align and make close contact with the elastic contacts in the mobile terminal to achieve a stable electrical connection.

[0068] By molding the antenna 20 onto one side of the card tray body 10, and utilizing the unused space on the surface of the multiplexed card tray 100, it avoids having to create a separate installation area for the antenna inside the mobile terminal, thereby saving the antenna layout area inside the mobile terminal and helping the mobile terminal to develop towards thinner and smaller designs.

[0069] The antenna 20 is designed to be positioned along the outer periphery of the SIM card insertion cavity 11. Through physical isolation and electromagnetic shielding, this significantly reduces interference from the SIM card's metal contacts to the antenna signal, further improving antenna efficiency. Furthermore, placing the feed point 30 and feed point 40 on the outer wall of the card tray body 10 allows for effective connection with the mobile terminal's elastic contacts without precise alignment during the insertion and removal of the multiplexed card tray 100. This achieves blind insertion, simplifies the user's operation, reduces the requirements for assembly precision, and improves connection reliability.

[0070] In some implementations, refer to Figure 1 As shown, the antenna 20 forms an unclosed loop path along the outer periphery of the SIM card insertion cavity 11 on one end face of the card tray body 10 along the thickness direction, and the antenna 20 and the card tray body 10 are arranged on the same plane.

[0071] As an antenna adapted to the communication needs of mid-high frequency and ultra-high frequency, its open-loop design not only avoids the formation of short-circuit loops, but also facilitates the adjustment of electrical length and impedance characteristics according to the different frequency band characteristics of mid-high frequency (such as 1GHz-6GHz) and ultra-high frequency (such as above 6GHz) to achieve efficient transmission and reception of signals in each frequency band. The open-loop path closely matches the outer periphery of the SIM card insertion cavity 11. For example, when the SIM card insertion cavity 11 is rectangular, the antenna 20 extends roughly along the four sides of the rectangle, breaking only at the middle of one side to form a matching open-loop rectangular ring.

[0072] The antenna 20 and the card holder body 10 are arranged in a coplanar manner, that is, the antenna 20 is completely located in the plane of the end face of the card holder body 10 on this side, without protruding or being recessed on the end face.

[0073] This coplanar design ensures the tightness of the connection between the antenna 20 and the card holder body 10, reduces assembly interference caused by the antenna protrusion, and makes the overall structure of the card holder more regular. On the other hand, the coplanar setting makes the radiation direction of the antenna 20 more concentrated in the plane and surrounding area, which is beneficial to improving the coverage effect of mid-high frequency and ultra-high frequency signals in specific directions inside the mobile terminal.

[0074] In one embodiment, the antenna is configured as a loop antenna. When there are two SIM card insertion cavities 11, the loop antenna is arranged along the overall outer periphery formed by the splicing of the two SIM card insertion cavities 11.

[0075] Specifically, if the two SIM card insertion cavities 11 are arranged side by side, their overall periphery forms a larger combined profile covering the two SIM card insertion cavities 11, and the loop antenna extends along this overall profile. (Refer to...) Figure 1 As shown, the outer periphery of the elongated rectangle formed by the two rectangular cavities placed side by side is where the loop antenna extends along the edge of this combined outline.

[0076] This ring antenna, arranged along the outer periphery of the two SIM card insertion cavities 11 after assembly, can simultaneously provide electromagnetic shielding for both SIM cards, effectively isolating electromagnetic interference between the metal contacts of the two SIM cards and their interference to the antenna itself. Simultaneously, the ring antenna has a wider coverage area, forming a more stable radiation field, which helps improve the signal transmission and reception stability and consistency of the antenna in multi-SIM simultaneous operation scenarios, ensuring the smooth implementation of the dual-SIM dual-standby function of the mobile terminal. Moreover, this arrangement fully utilizes the unused space around the two SIM card insertion cavities 11, without occupying other areas of the card tray body 10, further demonstrating the advantages of structural integration. In some embodiments, refer to... Figure 3As shown, the multiplexer 100 includes a SIM card holder 50, which is disposed on the side of the SIM card holder body 10 away from the power supply point 30. When the SIM card holder body 10 is installed in place, the end face of the SIM card holder 50 away from the SIM card holder body 10 is flush with the outer end face of the mobile terminal.

[0077] The cassette cap 50 and the cassette body 10 can be connected by different connection structures, or they can be a single integrated structure. This application does not limit this.

[0078] When the SIM card tray body 10 is installed in the SIM card slot of the mobile terminal, the end face of the SIM card tray cap 50 away from the SIM card tray body 10 is flush with the outer end face of the mobile terminal housing 90, preventing the SIM card tray cap 50 from protruding or being recessed on the outer surface of the mobile terminal. This keeps the outer surface of the mobile terminal flat and continuous, improving the overall aesthetics of the product and meeting users' demands for a refined appearance, thus enhancing the user's visual experience.

[0079] Furthermore, during the removal of the multiplexer 100, the card holder cap 50 can receive a force applied by the user, thereby removing the multiplexer 100 from the card slot. For example, the card holder cap 50 can be ejected from the card slot by means of a card holder ejector pin, and then the user can apply a force to remove the multiplexer 100 from the card slot. This application does not limit this method.

[0080] Antenna 20 includes a substrate, a copper layer and a nickel layer. The copper layer is attached to the surface of the substrate, and the nickel layer covers the copper layer. The thickness of the copper layer is 2um-4um, and the thickness of the nickel layer is 8um-12um.

[0081] In some implementations, PA6 material is selected as the substrate, which has good processing performance and structural stability, making it suitable as the basic support structure for antennas.

[0082] The thin copper and nickel layers meet the basic signal transmission requirements of the antenna 20, providing a stable path for signal transmission. The nickel layer effectively isolates moisture and corrosive substances from the external environment, reducing the oxidation and corrosion of the copper layer. It also improves the overall wear resistance of the antenna, maintaining the integrity of the copper layer even under long-term use or slight friction, ensuring the stability of the antenna's conductivity and extending its lifespan.

[0083] At the same time, the antenna is attached to the surface of the card tray body to avoid the antenna affecting the movement process of the card tray body.

[0084] Specifically, one side of the substrate has an active area formed by LDS laser engraving. A copper layer is attached to the surface of the active area by chemical plating, and the copper layer thickness is 8um-12um. A nickel layer is covered on the side of the copper layer away from the substrate by chemical plating, and the nickel layer thickness is 2um-4um. The side of the substrate away from the copper layer is fixedly connected to the card holder body 10.

[0085] Active areas are formed on the substrate surface through LDS laser engraving, allowing the copper layer to adhere precisely and firmly to these areas. The copper layer, as the conductive body, ensures the antenna's signal transmission performance. A nickel layer covers the copper layer surface and is tightly bonded to the copper layer through metallurgical bonding, providing excellent protection for the copper layer, improving the antenna's corrosion resistance and wear resistance, and extending its service life. The substrate and the card holder are connected by snap-fit ​​or adhesive, making installation convenient and quick, and improving production efficiency.

[0086] Those skilled in the art can adjust the copper layer thickness in the range of 8um-12um and the nickel layer thickness in the range of 2-4um according to actual needs, as well as select a suitable plastic substrate material and connection method with the card tray, all of which can achieve the technical effects of this utility model.

[0087] This embodiment also proposes a mobile terminal, as shown in the following figure. Figure 4 As shown, the mobile terminal includes a housing 90 and a multiplexer SIM card tray 100. A SIM card slot is formed on the housing 90, and the SIM card slot and the multiplexer SIM card tray 100 are adapted to each other. The multiplexer SIM card tray 100 is detachably inserted into the SIM card slot. That is, when the mobile terminal is in normal use, the multiplexer SIM card tray 100 is installed in the SIM card slot, and when it is necessary to replace the SIM card, the multiplexer SIM card tray 100 can be separated from the housing 90.

[0088] The aforementioned mobile terminal integrates the antenna 20 onto the SIM card tray body 10, making full use of the unused space around the SIM card tray body 10. This eliminates the need for a separate installation area for the antenna 20, reducing its space occupation and resulting in a more compact internal structure. In some embodiments, the mobile terminal includes a first elastic member disposed at a specific position within the SIM card slot. The position of the first elastic member corresponds to the location of the feed point 30 after the multiplexed SIM card tray 100 is inserted into the SIM card slot, ensuring a stable pluggable connection between the two.

[0089] The first elastic element is usually made of a metal material with good elasticity and conductivity, such as beryllium copper or phosphor bronze. These materials undergo special heat treatment processes to have excellent elastic recovery and fatigue resistance, and can maintain stable elasticity and conductivity even after multiple insertion and removal operations.

[0090] Structurally, the first elastic element may be designed as a spring with a certain curvature or a contact structure with tiny protrusions, giving it a certain preload in its natural state. When the multiplexer 100 is inserted into the slot, as it advances, the feed point 30 gradually approaches and contacts the first elastic element. The first elastic element deforms under the pressure of the feed point 30, ensuring sufficient contact pressure between them and guaranteeing smooth electrical signal transmission. When the multiplexer 100 needs to be removed, as it exits, the feed point 30 separates from the first elastic element, and the first elastic element quickly returns to its initial state under its own elasticity, preparing for the next connection. This pluggable connection method is convenient to operate, requiring no additional tools or complex steps. Users can simply plug and unplug the multiplexer 100 normally to connect and disconnect the antenna feed point from the internal circuitry of the mobile terminal.

[0091] By making the first elastic element pluggable to the feed point 30 of the multiplexer 100, a stable electrical connection between the two is ensured after the multiplexer 100 is installed, guaranteeing that the antenna 20 can normally receive and transmit medium-high frequency and ultra-high frequency signals. It also adapts to dynamic changes during the insertion and removal of the multiplexer 100, reducing mechanical wear on the feed point 30 and the elastic element caused by the insertion and removal actions, and extending the service life of the components. At the same time, this connection method has relatively low requirements for assembly precision. Even if there is a slight positional deviation of the multiplexer 100 during insertion and removal, the elastic deformation of the first elastic element can compensate to a certain extent, ensuring the reliability of the connection, thereby improving the overall stability and user experience of the mobile terminal.

[0092] In some embodiments, the mobile terminal includes a second elastic element disposed at a specific position within the card slot. The second elastic element corresponds to the position of the power supply point 30 after the multiplexer 100 is inserted into the card slot, so as to ensure that the two can achieve a stable pluggable connection.

[0093] The second elastic element is usually made of a metal material with good elasticity and conductivity, such as beryllium copper or phosphor bronze. These materials undergo special heat treatment processes to have excellent elastic recovery and fatigue resistance, and can maintain stable elasticity and conductivity even after multiple insertion and removal operations.

[0094] Structurally, the second elastic element may be designed as a spring with a certain curvature or a contact structure with tiny protrusions, which gives it a certain preload in its natural state.

[0095] The second elastic element has elastic deformation capability. When the card tray is inserted into the card slot, it can make close contact with the feed point through its own elasticity. Even if there are slight assembly errors or position fluctuations during the insertion and removal of the card tray, it can maintain a good electrical connection and reduce signal interruption or attenuation caused by poor contact.

[0096] This flexible contact method avoids problems such as loosening and poor connection that are prone to occur with rigid connections, ensuring the continuity of signal transmission between the antenna and the internal circuitry of the mobile terminal and improving communication quality.

[0097] Example 2

[0098] The difference between this embodiment and Embodiment 1 lies in the antenna configuration. In this embodiment, referring to... Figure 5 As shown, the antenna is configured as an IFA antenna, which includes a radiating arm 70. The first end of the radiating arm 70 is connected to the feed point 30, and the second end of the radiating arm 70 is connected to the feed point 40.

[0099] By connecting the two ends of the radiating arm 70 to the feed point 30 and the feed point 40 respectively, the input impedance of the antenna 20 can be precisely adjusted by adjusting the length and shape of the radiating arm 70 and the positions of the feed point 30 and the feed point 40, so as to achieve a good match with the impedance of the RF front-end circuit, reduce the reflection loss of the signal during transmission, and significantly improve the energy conversion efficiency and signal transmission and reception sensitivity of the antenna.

[0100] Example 3

[0101] The difference between this embodiment and Embodiment 1 lies in the antenna configuration. In this embodiment, referring to... Figure 6 As shown, the antenna 20 includes a first radiating segment 81 and a second radiating segment 82 that are separately arranged. The first radiating segment 81 and the second radiating segment 82 are independently distributed at a certain distance on the upper surface of the card holder body 10, without direct contact or electrical connection. This separate design provides convenience for flexible adjustment of antenna performance.

[0102] The first radiating section 81 serves as the core of the antenna's signal radiation. It is connected to the feed point 30 and can efficiently convert the electrical signal transmitted from the feed point 30 into electromagnetic waves for radiation. The second radiating section 82 is connected to the feed point 40 and provides a stable grounding reference for the antenna, ensuring the overall electrical balance of the antenna.

[0103] The antenna 20 is a semi-ring disposed on the upper surface of the cassette body 10. (See reference...) Figure 6As shown, this semi-ring structure is formed by the cooperation of a first radiating segment 81 and a second radiating segment 82. Specifically, the first radiating segment 81 and the second radiating segment 82 extend along the arc-shaped path on the upper surface of the card tray body 10, forming a non-closed semi-ring. The curvature of the semi-ring is usually determined according to the shape and size of the card tray body 10, generally around 180 degrees, which can make full use of the arc-shaped area on the upper surface of the card tray to achieve omnidirectional signal radiation.

[0104] The semi-ring antenna 20 fits snugly against the upper surface of the card tray body 10, forming an organic whole with the card tray. It does not protrude from the card tray surface, thus avoiding interference with the card slot during card tray insertion and removal. At the same time, the semi-ring structure surrounds the outer periphery of the SIM card insertion cavity 11, which can provide a certain degree of electromagnetic shielding for the SIM card through its own layout, reducing interference from the SIM card's metal contacts to the antenna radiation signal.

[0105] This configuration not only makes full use of the unused space on the upper surface of the card tray body 10, making the antenna layout more compact, but also allows it to work well with other structures on the card tray (such as feed point 30 and feed point 40). When the multiplexed card tray 100 is inserted into the card slot of the mobile terminal, the first elastic element contacts the feed point 30, providing a stable signal input to the first radiating segment 81, ensuring that the antenna 20 can efficiently complete the transmission and reception of medium-high frequency and ultra-high frequency signals.

[0106] Example 4

[0107] The difference between this embodiment and Embodiment 3 lies in the arrangement of the feed point. In this embodiment, the feed point is set as a floating trace (not shown in the figure). The floating trace is located on one end face of the card tray body along the thickness direction, and the floating trace forms capacitive coupling with the ground plane of the mobile terminal.

[0108] Reference Figure 7 As shown, the antenna 20 includes a first radiating segment 81 and a second radiating segment 82 that are separately arranged. The first radiating segment 81 and the second radiating segment 82 are independently distributed at a certain distance on the upper surface of the card holder body 10, without direct contact or electrical connection. This separate design provides convenience for flexible adjustment of antenna performance.

[0109] The first radiating section 81 serves as the core of the antenna's signal radiation. It is connected to the feed point 30 and can efficiently convert the electrical signal transmitted from the feed point 30 into electromagnetic waves for radiation. The second radiating section 82 is connected to the floating trace, providing a stable grounding reference for the antenna and ensuring the overall electrical balance of the antenna.

[0110] The floating trace, serving as the feed point 40, is cleverly positioned on one end face of the cassette body 10 along its thickness direction, forming a reasonable spatial distribution with the upper surface of the semi-ring structure of the antenna 20, ensuring mutual non-interference while cooperating. This floating trace employs the same manufacturing process as the antenna 20, such as LDS laser engraving and chemical plating, to form a metal circuit with excellent conductivity. Its shape can be designed as a straight line, curve, or slightly bent type according to capacitive coupling requirements.

[0111] When the cassette body 10 moves with the moving axis, such as during insertion and removal, a certain gap is always maintained between the suspended trace and the ground plane of the mobile terminal. Like the two plates of a capacitor, although there is no direct physical connection, an indirect connection of electrical signals is achieved through the transmission of an electric field. This capacitive coupling method ensures that even during the movement of the cassette, the feed point 40 can stably perform its grounding function, providing a continuous ground reference for the second radiating section 82 and guaranteeing the stability of the antenna 20's operation.

[0112] This application provides a multiplexed SIM card tray 100 for installation in a SIM card slot of a mobile terminal. The multiplexed SIM card tray 100 includes a tray body 10, an antenna 20, a feed point 30, and a feed point 40. The tray body 10 has at least one SIM card insertion cavity 11. The antenna 20 is formed on at least one end face of the tray body 10 along the thickness direction and is disposed along the outer periphery of the SIM card insertion cavity 11. The feed point 30 and the feed point 40 are disposed on the outer side wall of the tray body 10. The feed point 30 is electrically connected to the radiating end of the antenna 20, and the feed point 40 is electrically connected to the ground point of the antenna 20. The feed point 30 and the feed point 40 are configured to be electrically connected to corresponding contacts of the mobile terminal. By placing the antenna 20 in the tray body 10, the limitation on the placement position of the antenna 20 can be reduced, the performance of the antenna 20 can be improved, and the anti-interference capability can be enhanced.

[0113] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A reusable card tray, characterized in that, The multiplexer card tray is used for installation in the card slot of a mobile terminal, and the multiplexer card tray includes: A SIM card tray body, wherein at least one SIM card insertion cavity is provided on the SIM card tray body; An antenna is formed at least on one end face of the card tray body along the thickness direction, and the antenna is disposed along the outer periphery of the SIM card insertion cavity; A feed point is located on the outer side wall of the card holder body, and the feed point is electrically connected to the radiating end of the antenna; The feed point is located on the outer side wall of the card holder body, and the feed point is electrically connected to the ground terminal of the antenna; The power supply point and the power supply location are configured to be electrically connected to the corresponding contact of the mobile terminal.

2. The reusable card tray according to claim 1, characterized in that, The antenna forms an unclosed loop path along the outer periphery of the SIM card insertion cavity on one end face of the card tray body along the thickness direction, and the antenna and the card tray body are coplanar.

3. The reusable card tray according to claim 2, characterized in that, The antenna is configured as an IFA antenna, which includes a radiating arm. The first end of the radiating arm is connected to the feed point, and the second end of the radiating arm is connected to the feed point.

4. The reusable card tray according to claim 2, characterized in that, The antenna semi-ring is disposed on the upper surface of the card holder body. The antenna includes a first radiating segment and a second radiating segment that are separately disposed. The first radiating segment is connected to the feed point, and the second radiating segment is connected to the feed point.

5. The reusable card tray according to claim 4, characterized in that, The feed point is configured as a floating line, which is located on one end face of the card tray body along the thickness direction. The floating line is capacitively coupled to the ground plane of the mobile terminal.

6. The reusable card tray according to claim 1, characterized in that, It also includes a card holder cap, which is positioned on the side of the card holder body away from the power supply point; When the card tray body is installed in place, the end face of the card tray cap away from the card tray body is flush with the outer end face of the mobile terminal.

7. The reusable card tray according to claim 1, characterized in that, The antenna includes a substrate, a copper layer, and a nickel layer. The copper layer is attached to the surface of the substrate, and the nickel layer covers the copper layer. The thickness of the copper layer is 2µm-4µm, and the thickness of the nickel layer is 8µm-12µm.

8. A mobile terminal, characterized in that, include: The housing has a slot. The multiplexer card holder according to any one of claims 1-7, wherein the multiplexer card holder is installed in the card slot.

9. The mobile terminal according to claim 8, characterized in that, Also includes: A first elastic element is disposed in the card slot, and the first elastic element is pluggably connected to the power supply point of the multiplex card holder.

10. The mobile terminal according to claim 8 or 9, characterized in that, Also includes: A second elastic element is disposed in the card slot, and the second elastic element is pluggably connected to the feed point of the multiplex card holder.

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