Antenna structure and electronic device having the same

Abstract

The application provides an antenna structure applied to an electronic device including a first shell, a second shell and a hinge. The first shell and the second shell are rotatably connected through the hinge. The antenna structure is accommodated in any one of the first shell or the second shell. The antenna structure includes a feed-in part, a first radiation part and at least one grounding end. One end of the first radiation part is connected to the feed-in part, and the other end of the first radiation part has a spacing with the hinge. The first radiation part feeds in a current through the feed-in part, conducts the current and couples the current to the hinge, so as to excite at least one working mode to generate at least one radiation frequency band of a radiation signal. The application also provides an electronic device with the antenna structure.

Description

Technical Field

[0001] This application relates to an antenna structure and an electronic device having the antenna structure. Background Technology

[0002] With the advancement of wireless communication technology, mobile phones, personal digital assistants, and other electronic devices are constantly evolving towards greater functionality, thinner designs, and faster, more efficient data transmission. However, the space available to accommodate antennas is becoming increasingly limited, and the metal components surrounding the antenna can easily cause shielding effects, thus affecting its transmission characteristics. Furthermore, with the continuous development of wireless communication technology, the bandwidth requirements for antennas are constantly increasing. Therefore, how to design antennas with multiple frequency bands and a wider bandwidth within a limited space is a crucial challenge in antenna design. Summary of the Invention

[0003] In view of this, it is necessary to provide an antenna structure and an electronic device having the antenna structure to solve the above problems.

[0004] An antenna structure is applied to an electronic device including a first housing, a second housing, and a hinge. The first housing and the second housing are rotatably connected by the hinge. The antenna structure is housed in either the first housing or the second housing. The antenna structure includes a feed section, a first radiating section, and at least one ground terminal. One end of the first radiating section is connected to the feed section, and the other end of the first radiating section is spaced from the hinge. The first radiating section receives current through the feed section, conducts the current, and couples the current to the hinge to excite at least one operating mode to generate a radiated signal in at least one radiating frequency band.

[0005] An electronic device includes the antenna structure described above and a hinge.

[0006] The aforementioned antenna structure and electronic device having the antenna structure form a resonant cavity radiator in the metal body, hinge, and display unit, allowing the current fed into the antenna structure to be coupled to the hinge, making the hinge part of the current conduction path. This can cover multiple frequency bands such as WiFi 2.4G and WiFi 5G, improve the antenna bandwidth, and make the radiation of the antenna structure more wideband and have better antenna efficiency, covering the requirements of global frequency band applications and CA applications. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of an electronic device in a first state according to a preferred embodiment of this application.

[0008] Figure 2 This is a schematic diagram of an electronic device in a second state according to a preferred embodiment of this application.

[0009] Figure 3This is a schematic diagram of an electronic device in a third state according to a preferred embodiment of this application.

[0010] Figure 4 This is a schematic diagram of the antenna structure of the first embodiment of this application applied to an electronic device.

[0011] Figure 5 for Figure 4 A cross-sectional schematic diagram of the electronic device shown.

[0012] Figure 6 for Figure 4 The diagram shows the antenna structure.

[0013] Figure 7 for Figure 4 A schematic diagram of the antenna structure from another angle.

[0014] Figure 8 for Figure 4 The diagram shows the return loss curve of the antenna structure.

[0015] Figure 9 for Figure 4 The diagram shows the overall radiation efficiency of the antenna structure.

[0016] Figure 10 This is a schematic diagram of the antenna structure of the second embodiment of this application applied to an electronic device.

[0017] Figure 11 for Figure 10 A schematic diagram of the antenna structure shown.

[0018] Figure 12 for Figure 10 A schematic diagram of the antenna structure from another angle.

[0019] Figure 13 for Figure 10 The diagram shows the return loss curve of the antenna structure.

[0020] Figure 14 for Figure 10 The diagram shows the overall radiation efficiency curve of the antenna structure.

[0021] Figure 15 This is a schematic diagram illustrating the application of the antenna structure of the third embodiment of this application to an electronic device.

[0022] Figure 16 for Figure 15 The diagram shows the antenna structure.

[0023] Figure 17 for Figure 15 A schematic diagram of the antenna structure from another angle.

[0024] Figure 18 for Figure 15 The diagram shows the return loss curve of the antenna structure.

[0025] Figure 19 for Figure 15 The diagram shows the overall radiation efficiency of the antenna structure.

[0026] Explanation of main component symbols

[0027]

[0028]

[0029] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] It should be noted that when one component is referred to as "electrically connected" to another component, it can be directly on the other component or there can be an intervening component. When one component is considered to be "electrically connected" to another component, it can be a contact connection, such as a wire connection, or a non-contact connection, such as a non-contact coupling.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0033] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figure 1 and Figure 4The first preferred embodiment of this application provides an antenna structure 100, which can be applied to electronic devices 200 such as mobile phones, tablet computers, personal digital assistants (PDAs), laptops, display devices, electronic players, game consoles, televisions, wearable devices, Internet of Things (IoT) devices, and automobiles, for transmitting and receiving radio waves to transmit and exchange wireless signals.

[0035] It is understood that the electronic device 200 may employ one or more of the following communication technologies: Bluetooth (BT) communication technology, Global Positioning System (GPS) communication technology, Wireless Fidelity (Wi-Fi) communication technology, Global System for Mobile Communications (GSM) communication technology, Wideband Code Division Multiple Access (WCDMA) communication technology, Long Term Evolution (LTE) communication technology, 5G communication technology, Sub-6G communication technology, and other future communication technologies.

[0036] Please refer to the following: Figure 1 , Figure 2 and Figure 3 The electronic device 200 includes a first housing 21, a second housing 22, and a connector 23. The first housing 21 and the second housing 22 are rotatably connected by the connector 23.

[0037] The first housing 21 is generally a hollow rectangular structure forming an accommodating space (not shown), which can be used to accommodate the antenna structure 100 and other electronic components. The first housing 21 is made of metal or other conductive materials. An opening is provided on one side of the first housing 21 (not shown). It is understood that the structure of the second housing 22 can be substantially the same as that of the first housing 21. Therefore, in the embodiments of this application, the specific structure is described using the first housing 21 as an example, while the specific structure of the second housing 22 will not be described in detail.

[0038] The electronic device 200 further includes two display units 201, respectively housed in the openings of the first housing 21 and the second housing 22, thereby forming a dual-screen structure. Each display unit 201 has a display plane exposed through the opening. It can be understood that the display unit 201 can be combined with a touch sensor to form a touchscreen. A touch sensor can also be called a touch panel or a touch-sensitive panel.

[0039] It is understood that in some embodiments, the display unit 201 has a high screen-to-body ratio. That is, the area of ​​the display plane of the display unit 201 is greater than 70% of the front area of ​​the electronic device, and can even be a full-screen display. Specifically, in some embodiments, the full-screen display means that, except for the necessary slots opened on the antenna structure 100, the left, right, and bottom sides of the display unit 201 can be seamlessly connected to the first housing 21 or the second housing 22. The first housing 21 and the second housing 22 are used to support the display unit 201, provide electromagnetic shielding, and improve the structural strength of the electronic device 200.

[0040] In some embodiments, the connector 23 can be a hinge, made of metal or other conductive materials. The first housing 21 and the second housing 22 are respectively connected to opposite sides of the connector 23 and can rotate around the connector 23 to different states. Specifically, please refer to... Figure 1 The first housing 21 and the second housing 22 are in an unfolded state relative to the connecting member 23. That is, the first housing 21, the connecting member 23 and the second housing 22 are connected side by side in sequence. At this time, the electronic device 200 can be in tablet mode. The two display units 201 are located on the same side of the electronic device 200. The two display units 201 can be spliced ​​to form a larger display screen, which can display a larger user interface or content and provide users with a better viewing experience.

[0041] Please see Figure 2 The first housing 21 and the second housing 22 rotate relative to each other in a first direction with the connector 23 as the rotation axis until they are stacked. That is, the first housing 21 and the second housing 22 are located on the same side of the connector 23 and are stacked. At this time, the electronic device 200 can be in telephone mode. The two display units 201 are located on opposite sides of the electronic device 200 (that is, the two display units 201 face away from each other and outwards respectively). The two display units 201 can display the same or different user interfaces or content respectively, allowing the user to view the user interface or content from different sides of the electronic device 200. In some embodiments, when the electronic device 200 is in telephone mode, one display unit 201 can be used as the main screen and the other display unit 201 can be used as the secondary screen.

[0042] Please see Figure 3The first housing 21 and the second housing 22 rotate relative to each other in the second direction with the connector 23 as the rotation axis until they are stacked. That is, the first housing 21 and the second housing 22 are located on the same side of the connector 23 and are stacked. At this time, the electronic device 200 can be in standby mode, and the two display units 201 are located on opposite sides of the electronic device 200 (that is, the two display units 201 face each other). The two display units 201 can not display, which can protect the display units 201.

[0043] In some embodiments, the first direction is opposite to the second direction.

[0044] In another embodiment, the first housing 21 and the second housing 22 may also be formed by connecting a frame (not shown) and a back plate (not shown). The frame and the back plate together enclose an accommodating space (not shown).

[0045] Please refer to the following: Figure 4 The electronic device 200 further includes a circuit board 205 housed within the first housing 21. In some embodiments, the circuit board 205 may provide power input and system ground for the antenna structure 100. In other embodiments, the circuit board 205 may also include other electronic components to implement the mainboard circuitry and system functions of the electronic device 200. The circuit board 205 may also include a system ground plane to provide grounding for the antenna structure 100.

[0046] It is understood that in other embodiments, the electronic device 200 may also include one or more of the following components, such as a processor, circuit board, memory, power supply component, input / output circuit, audio component (e.g., microphone and speaker), multimedia component (e.g., front-facing camera and / or rear-facing camera), sensor component (e.g., proximity sensor, distance sensor, ambient light sensor, accelerometer, gyroscope, magnetic sensor, pressure sensor and / or temperature sensor), etc., which will not be elaborated here.

[0047] Please refer to the following: Figure 5 , Figure 6 and Figure 7 The antenna structure 100 can be housed in the first housing 21. The antenna structure 100 includes a first radiating part 11, a second radiating part 12, a third radiating part 13, a metal body 14, a feed part 15, and a carrier 16.

[0048] The first radiating part 11, the second radiating part 12, and the third radiating part 13 are arranged at intervals and supported on the carrier 16. The second radiating part 12 and the third radiating part 13 are respectively disposed at intervals on opposite sides of the first radiating part 11. One side of each of the first radiating part 11, the second radiating part 12, and the third radiating part 13 is spaced apart from the connecting member 23.

[0049] In some embodiments, the carrier 16 includes at least a first plane 162 and a second plane 164. The first plane 162 and the second plane 164 are connected substantially perpendicularly, wherein the second plane 164 is substantially parallel to and spaced apart from the connector 23. The carrier 16 may be made of a non-conductive material.

[0050] The first radiating section 11 includes a first radiating segment 112, a second radiating segment 114, a third radiating segment 116, and a fourth radiating segment 118 connected in sequence. The first radiating segment 112, the second radiating segment 114, the third radiating segment 116, and the fourth radiating segment 118 are all generally elongated. The first radiating segment 112, the second radiating segment 114, and the third radiating segment 116 are located on the same plane and can be disposed on the first plane 162 of the carrier 16; the fourth radiating segment 118 is located on another plane and can be disposed on the second plane 164 of the carrier 16. The first radiating segment 112 and the third radiating segment 116 are respectively connected approximately perpendicularly to opposite ends of the second radiating segment 114, and the first radiating segment 112 and the third radiating segment 116 extend in opposite directions. The end of the first radiating segment 112 away from the second radiating segment 114 is electrically connected to the power supply (or power point) on the circuit board 205 through the feed section 15 to feed current. In some embodiments, the feed section 15 can be electrically connected to the first radiating section 112 and the feed power supply (or feed point) on the circuit board 205 via a spring, microstrip line, strip line, coaxial cable, or other means. The fourth radiating section 118 is connected to the end of the third radiating section 116 away from the second radiating section 114 at approximately perpendicular angles and is arranged approximately parallel to the second radiating section 114. The fourth radiating section 118 and the second radiating section 114 extend from opposite ends of the third radiating section 116 in the same extending direction. The fourth radiating section 118 is arranged approximately parallel to and spaced apart from the connector 23. In some embodiments, the distance g1 between the fourth radiating section 118 and the connector 23 (i.e., the distance between the first radiating section 11 and the connector 23) can be set to 0.3 mm. The length of the fourth radiating section 118 is greater than the length of the second radiating section 114.

[0051] The second radiating section 12 includes a fifth radiating segment 122, a sixth radiating segment 124, a seventh radiating segment 126, and an eighth radiating segment 128 connected in sequence. The fifth radiating segment 122 is generally sheet-shaped, while the sixth, seventh, and eighth radiating segments 124, 126, and 128 are generally elongated. The fifth, sixth, and seventh radiating segments 122, 124, and 126 are located on the same plane and can be disposed on the first plane 162 of the carrier 16; the eighth radiating segment 128 is located on another plane and can be disposed on the second plane 164 of the carrier 16. The fifth and seventh radiating segments 122 and 126 are respectively connected approximately perpendicularly to the opposite ends of the sixth radiating segment 124, and extend in opposite directions. The end of the fifth radiating segment 122 furthest from the sixth radiating segment 124 is connected to ground (i.e., the end of the fifth radiating segment 122 furthest from the sixth radiating segment 124 is the grounding end) to provide grounding for the antenna structure 100, and is disposed at a distance from the metal body 14. The eighth radiating segment 128 is connected approximately perpendicularly to the end of the seventh radiating segment 126 furthest from the sixth radiating segment 124, and is disposed approximately parallel to the sixth radiating segment 124, with the eighth radiating segment 128 and the sixth radiating segment 124 extending in the same direction from opposite ends of the seventh radiating segment 126. The eighth radiating segment 128 is disposed approximately parallel to and spaced apart from the connector 23. In some embodiments, the distance g2 between the eighth radiating segment 128 and the connector 23 (i.e., the distance between the second radiating portion 12 and the connector 23) can be set to 0.3 mm. The length of the eighth radiating segment 128 is less than the length of the sixth radiating segment 124.

[0052] The third radiating section 13 includes a ninth radiating segment 132 and a tenth radiating segment 134 connected to each other. Both the ninth radiating segment 132 and the tenth radiating segment 134 are generally elongated. The ninth radiating segment 132 is located on one plane and can be disposed on a first plane 162 of the carrier 16; the tenth radiating segment 134 is located on another plane and can be disposed on a second plane 164 of the carrier 16. The end of the ninth radiating segment 132 away from the tenth radiating segment 134 is connected to ground (i.e., the end of the ninth radiating segment 132 away from the tenth radiating segment 134 is the grounding end) to provide grounding for the antenna structure 100, and is disposed at a distance from the metal body 14. The tenth radiating segment 134 is connected to the ninth radiating segment 132 approximately perpendicularly. The tenth radiating segment 134 is approximately parallel to and spaced apart from the connector 23. In some embodiments, the distance g3 between the tenth radiating segment 134 and the connector 23 (i.e., the distance between the third radiating section 13 and the connector 23) can be set to 0.3 mm. The length of the tenth radiation segment 134 is less than the length of the ninth radiation segment 132.

[0053] In some embodiments, the fifth radiating segment 122 (second radiating part 12) and the ninth radiating segment 132 (third radiating part 13) can be electrically connected to the first radiating segment 112 and the system ground plane (or grounding point) on the circuit board 205 by means of spring clips, microstrip lines, strip lines, coaxial cables, etc.

[0054] The metal body 14 may be made of a metallic material or other conductive material. In some embodiments, the metal body 14 is generally U-shaped. The metal body 14 surrounds the first radiating portion 11, the second radiating portion 12, and the third radiating portion 13, and the side of the metal body 14 with an opening faces the connector 23. The metal body 14, the connector 23, and the display unit 201 may form a resonant cavity, and a corresponding clearance area (not shown) is formed therein, with the first radiating portion 11, the second radiating portion 12, and the third radiating portion 13 located in the resonant cavity and the clearance area.

[0055] In some embodiments, the antenna structure 100 may have dimensions of 45*8*3.5 cubic millimeters (mm). 3 ).

[0056] In some embodiments, the first radiating part 11, the second radiating part 12, the third radiating part 13, the metal body 14 and the connector 23 may constitute a couple hinge antenna (CHA).

[0057] In another embodiment, the second radiating element 12 and the third radiating element 13 can be electrically connected to the system ground plane, i.e., grounded, via a switching circuit. It is understood that in some embodiments, the switching circuit is used to effectively adjust the bandwidth of the antenna structure 100 by switching the second radiating element 12 and the third radiating element 13 to the system ground plane, making the second radiating element 12 and the third radiating element 13 ungrounded, or switching the second radiating element 12 and the third radiating element 13 to different grounding positions (equivalent to switching to different impedance elements), thereby achieving a multi-frequency adjustment function.

[0058] It is understood that in some embodiments, the specific structure of the switching circuit can take many forms, such as a single switch, a multi-way switch, a single switch with matching elements, a multi-way switch with matching elements, etc.

[0059] In some embodiments, when the first radiating part 11 receives current from the feed point of the circuit board 205 through the feed input part 15, the current flows through the first radiating part 11 and is coupled to the connector 23. The current is further coupled to the second radiating part 12, the third radiating part 13, and the metal body 14. The current is further conducted in the metal body 14, thereby forming a resonant cavity metal structure with the first radiating part 11, the connector 23, the metal body 14, and the display unit 201 to excite a first operating mode to generate a radiation signal in a first radiation frequency band. In some embodiments, the first operating mode is a low-frequency mode, and the first radiation frequency band includes a frequency band with a center frequency of 2480MHz.

[0060] When the first radiating section 11 receives current from the feed point of the circuit board 205 through the feed section 15, the current flows through the first radiating section 11 and couples to the connector 23. The current is further coupled to the second radiating section 12, the third radiating section 13, and the metal body 14. The current is further conducted in the metal body 14, thereby forming a resonant cavity metal structure with the first radiating section 11, the connector 23, the metal body 14, and the display unit 201 to excite a second operating mode to generate a radiation signal in a second radiation frequency band. In some embodiments, the second operating mode is a harmonic of the low-frequency mode, and the second radiation frequency band includes a frequency band with a center frequency of 5300MHz.

[0061] When the first radiating section 11 receives current from the feed point of the circuit board 205 through the feed section 15, the current flows through the first radiating section 11 and couples to the connector 23. The current is further coupled to the second radiating section 12 and the third radiating section 13, thereby forming a resonant cavity metal structure with the first radiating section 11, the connector 23, and the display unit 201 to excite a third operating mode to generate a radiation signal in a third radiation frequency band. In some embodiments, the third operating mode is a high-frequency mode, and the third radiation frequency band includes a frequency band with a center frequency of 5800MHz.

[0062] In some embodiments, the first operating mode may cover the WiFi 2.4G mode, and the first radiating frequency band may include the 2400-2480MHz frequency band; the second and third operating modes may cover the WiFi 5G mode, and the second and third radiating frequency bands may include the 5180-5800MHz frequency band.

[0063] In some embodiments, the first radiating part 11 feeds current through the feed part 15 and couples the current to the connector 23, the second radiating part 12 and the third radiating part 13 to form a multi-loop antenna.

[0064] It is understood that, in one embodiment, the feed section 15 may be made of materials such as iron, copper foil, or conductors used in laser direct structuring (LDS) processes.

[0065] It is understood that in handheld electronic devices, an optimized tuned antenna design can achieve maximum radiation efficiency across multiple frequency bands, and the characteristics of its primary tuned antenna efficiency cause a significant frequency shift in the antenna. Therefore, in one embodiment, the feed section 15 can be configured as a capacitor, an inductor, or a combination thereof; that is, the feed section 15 can be replaced by a capacitor, an inductor, or a combination thereof. By electrically connecting one end of the feed section 15 to the system ground plane (i.e., grounding) and the other end to the first radiating section 11, the antenna structure 100 can achieve better tuning performance and superior isolation.

[0066] Figure 8 This diagram shows the return loss curves of the antenna structure 100 when the electronic device 200 is in three usage modes (i.e., tablet mode, telephone mode, and standby mode). Curve S81 represents the return loss value of the antenna structure 100 when the electronic device 200 is in telephone mode. Curve S82 represents the return loss value of the antenna structure 100 when the electronic device 200 is in tablet mode. Curve S83 represents the return loss value of the antenna structure 100 when the electronic device 200 is in standby mode.

[0067] Figure 9 The graph shows the overall radiation efficiency of the antenna structure 100 in three usage modes (i.e., tablet mode, telephone mode, and standby mode) of the electronic device 200. Curve S91 represents the overall radiation efficiency of the antenna structure 100 in telephone mode. Curve S92 represents the overall radiation efficiency of the antenna structure 100 in tablet mode. Curve S93 represents the overall radiation efficiency of the antenna structure 100 in standby mode. Combined with the average efficiency of the antenna structure 100 shown in Table 1, it can be concluded that the antenna structure 100 exhibits good radiation characteristics (-2.4 to -7.9 dB) in different usage modes within the designed frequency band.

[0068]

[0069] Table 1

[0070] Obviously, by Figure 8 and Figure 9It is understood that the antenna structure 100 covers the WiFi 2.4G and WiFi 5G frequency bands, significantly improving its bandwidth and antenna efficiency. It can also cover global frequency band applications and support LTE-A carrier aggregation (CA) requirements. In another embodiment, the antenna structure 100 can also generate various different operating modes, such as low-frequency mode, intermediate-frequency mode, high-frequency mode, ultra-intermediate-frequency mode, ultra-high-frequency mode, 5G N78 mode, and 5G N79 mode, covering commonly used communication frequency bands globally. Specifically, the antenna structure 100 can cover GSM850 / 900 / WCDMA Band5 / Band8 / Band13 / Band17 / Band20 in the low frequency range, GSM 1800 / 1900 / WCDMA 2100 (1710-2170MHz) in the mid frequency range, LTE-A Band7, Band40, and Band41 (2300-2690MHz) in the high frequency range, 1427-1518MHz in the ultra-mid frequency range, 3400-3800MHz in the ultra-high frequency range, and the new 5G spectrum range includes N78 (3300-3800MHz) and N79 (4400-5000MHz). The antenna structure 100 is designed to operate in the GSM Qual-band, UMTS Band I / II / V / VIII bands, and the globally commonly used LTE 850 / 900 / 1800 / 1900 / 2100 / 2300 / 2500 bands.

[0071] In summary, the antenna structure 100 of this application forms a resonant cavity radiator by means of the metal body 14, the connector 23 and the display unit 201, so that the current fed into the antenna structure 100 can be coupled to the connector 23 (hinge), so that the hinge is part of the current conduction path. This can cover multiple frequency bands such as WiFi 2.4G and WiFi 5G, improve the bandwidth of the antenna, and make the radiation of the antenna structure 100 more wideband and have better antenna efficiency, covering the requirements of global frequency band applications and CA applications, while also having MIMO characteristics.

[0072] Please refer to the following: Figure 10 , Figure 11 and Figure 12 The antenna structure 100a provided in the second preferred embodiment of this application can be applied to electronic devices 200a such as mobile phones and personal digital assistants to transmit and receive radio waves to transmit and exchange wireless signals.

[0073] Compared with the antenna structure 100 of the first embodiment, the antenna structure 100a of the second embodiment includes a third radiating part 13a replacing the third radiating part 13 of the antenna structure 100. The other parts of the antenna structure 100a are consistent with the other parts of the antenna structure 100, and will not be described again here.

[0074] The third radiating section 13a is generally L-shaped, including an eleventh radiating segment 135 and a twelfth radiating segment 136 connected end-to-end. Both the eleventh radiating segment 135 and the twelfth radiating segment 136 are generally elongated, located on the same plane, and can be disposed on the first plane 162 of the carrier 16. The end of the eleventh radiating segment 135 away from the twelfth radiating segment 136 is connected to ground to provide grounding for the antenna structure 100, and is disposed spaced apart from the metal body 14. The eleventh radiating segment 135 is spaced apart from and parallel to the first radiating segment 112. The twelfth radiating segment 136 is spaced apart from and parallel to the second radiating segment 114, and the free end of the twelfth radiating segment 136 is aligned with the third radiating segment 116. In some embodiments, the length of the eleventh radiating segment 135 is less than the length of the twelfth radiating segment 136.

[0075] In some embodiments, when the first radiating part 11 receives current from the feed point of the circuit board 205 through the feed input part 15, the current flows through the first radiating part 11 and is coupled to the connector 23. The current is further coupled to the second radiating part 12, the third radiating part 13a and the metal body 14. The current is further conducted in the metal body 14, thereby forming a resonant cavity metal structure by the first radiating part 11, the connector 23, the metal body 14 and the display unit 201 to excite a fourth operating mode to generate a radiation signal in a fourth radiation frequency band. In some embodiments, the fourth operating mode is a low-frequency mode, and the fourth radiation frequency band includes a frequency band with a center frequency of 2440MHz.

[0076] In some embodiments, when the first radiating part 11 receives current from the feed point of the circuit board 205 through the feed part 15, the current flows through the first radiating part 11 and is coupled to the connector 23. The current is further coupled to the second radiating part 12, the third radiating part 13a and the metal body 14. The current is further conducted in the metal body 14, thereby forming a resonant cavity metal structure by the first radiating part 11, the connector 23, the metal body 14 and the display unit 201 to excite a fifth operating mode to generate a radiation signal in a fifth radiation frequency band. In some embodiments, the fifth operating mode is a harmonic of the low-frequency mode, and the fifth radiation frequency band includes a frequency band with a center frequency of 5100MHz.

[0077] In some embodiments, when the first radiating part 11 receives current from the feed point of the circuit board 205 through the feed input part 15, the current flows through the first radiating part 11 and is coupled to the connector 23. The current is further coupled to the second radiating part 12 and the third radiating part 13a, thereby forming a resonant cavity metal structure with the first radiating part 11, the connector 23 and the display unit 201 to excite a sixth operating mode to generate a radiation signal in a sixth radiation frequency band. In some embodiments, the sixth operating mode is the high-frequency mode, and the sixth radiation frequency band includes a frequency band with a center frequency of 5300MHz.

[0078] In some embodiments, when the first radiating section 11 receives current from the feed point of the circuit board 205 through the feed section 15, the current flows through the first radiating section 11 and is coupled to the third radiating section 13a, which then excites a seventh operating mode to generate a radiation signal in the seventh radiation band. In some embodiments, the seventh operating mode is a high-frequency mode, and the seventh radiation band includes a frequency band with a center frequency of 5700MHz.

[0079] In some embodiments, the fourth operating mode may cover the WiFi 2.4G mode, and the fourth radiation frequency band may include the 2400-2480MHz frequency band; the fifth, sixth and seventh operating modes may cover the WiFi 5G mode, and the fifth, sixth and seventh radiation frequency bands may include the 5180-5800MHz frequency band.

[0080] In some embodiments, the first radiating part 11 is fed with current through the feed part 15 and the current is coupled to the connector 23 and the second radiating part 12 to form a multi-loop antenna.

[0081] Figure 13 This diagram shows the return loss curves of the antenna structure 100a in three usage modes (i.e., tablet mode, telephone mode, and standby mode) of the electronic device 200a. Curve S131 represents the return loss value of the antenna structure 100a in telephone mode. Curve S132 represents the return loss value of the antenna structure 100a in tablet mode. Curve S133 represents the return loss value of the antenna structure 100a in standby mode.

[0082] Figure 14The graph shows the overall radiation efficiency of the antenna structure 100a in three usage modes (tablet mode, telephone mode, and standby mode) of the electronic device 200a. Curve S141 represents the overall radiation efficiency of the antenna structure 100a in telephone mode. Curve S142 represents the overall radiation efficiency of the antenna structure 100a in tablet mode. Curve S143 represents the overall radiation efficiency of the antenna structure 100a in standby mode. Combining this with the average efficiency of the antenna structure 100a shown in Table 2, it can be concluded that the antenna structure 100a exhibits good radiation characteristics (-2.1 to -7.4 dB) in different usage modes within the designed frequency band.

[0083]

[0084] Table 2

[0085] In summary, the antenna structure 100a of this application forms a resonant cavity radiator by means of the metal body 14, the connector 23 and the display unit 201, so that the current fed into the antenna structure 100a can be coupled to the connector 23 (hinge), so that the hinge is part of the current conduction path. In this way, it can cover multiple frequency bands such as WiFi 2.4G and WiFi 5G, improve the bandwidth of the antenna, and make the radiation of the antenna structure 100a more wideband and have better antenna efficiency, covering the requirements of global frequency band applications and CA applications, while also having MIMO characteristics.

[0086] Please refer to the following: Figure 15 , Figure 16 and Figure 17 The antenna structure 100b provided in the third preferred embodiment of this application can be applied to electronic devices 200b such as mobile phones and personal digital assistants to transmit and receive radio waves to transmit and exchange wireless signals.

[0087] Compared with the antenna structure 100 of the first embodiment, the antenna structure 100b of the third embodiment includes a first radiating part 11b and a second radiating part 12b replacing the first radiating part 11, the second radiating part 12, and the third radiating part 13 of the antenna structure 100. The other parts of the antenna structure 100b are consistent with the other parts of the antenna structure 100, and will not be described again here.

[0088] The first radiating section 11b includes a thirteenth radiating segment 111b, a fourteenth radiating segment 112b, a fifteenth radiating segment 113b, a sixteenth radiating segment 114b, and a seventeenth radiating segment 115b. The thirteenth, fourteenth, and fifteenth radiating segments 111b, 112b, and 113b are generally elongated; the sixteenth and seventeenth radiating segments 114b and 115b are generally rectangular. The thirteenth, fourteenth, and fifteenth radiating segments 111b, 112b, 113b, and 114b are located on the same plane and can be disposed on the first plane 162 of the carrier 16; the seventeenth radiating segment 115b is located on another plane and can be disposed on the second plane 164 of the carrier 16.

[0089] The thirteenth radiating segment 111b is generally perpendicularly connected to one end of the fourteenth radiating segment 112b. The end of the thirteenth radiating segment 111b away from the fourteenth radiating segment is connected to ground (i.e., the end of the thirteenth radiating segment 111b away from the fourteenth radiating segment is the grounding terminal) to provide grounding for the antenna structure 100, and is spaced apart from the metal body 14. In some embodiments, the grounding terminal of the thirteenth radiating segment 111b can be electrically connected to the grounding point on the metal body 14 or the circuit board 205 through a spring, microstrip line, strip line, coaxial cable, etc. to achieve grounding. The fifteenth radiating segment 113b is connected to the other end of the fourteenth radiating segment 112b. The extension direction of the fifteenth radiating segment 113b may be consistent with the extension direction of the fourteenth radiating segment 112b, and the width of the fifteenth radiating segment 113b is greater than the width of the fourteenth radiating segment 112b. The sixteenth radiating segment 114b is generally perpendicular to one side of the fourteenth radiating segment 112b and is spaced parallel to the thirteenth radiating segment 111b. The sixteenth radiating segment 114b and the thirteenth radiating segment 111b are located on the same side of the fourteenth radiating segment 112b. The free end of the sixteenth radiating segment 114b is electrically connected to the power supply (or power supply point) on the circuit board 205 via the feed-in section 15 to feed current. In some embodiments, the feed-in section 15 can be electrically connected to the first radiating segment 112 and the power supply (or power supply point) on the circuit board 205 by means of a spring, microstrip line, strip line, coaxial cable, etc. The length of the sixteenth radiating segment 114b is less than the length of the thirteenth radiating segment 111b. The seventeenth radiating segment 115b is connected approximately perpendicularly to the fourteenth radiating segment 112b and the fifteenth radiating segment 113b. The seventeenth radiating segment 115b is located on the same side of the fourteenth radiating segment 112b relative to the sixteenth radiating segment 114b and the thirteenth radiating segment 111b. The length of the seventeenth radiating segment 115b is approximately equal to the sum of the lengths of the fourteenth radiating segment 112b and the fifteenth radiating segment 113b. The seventeenth radiating segment 115b is substantially parallel to and spaced apart from the connector 23. In some embodiments, the distance g4 between the seventeenth radiating segment 115b and the connector 23 (that is, the distance between the first radiating portion 11b and the connector 23) can be set to 0.3 mm.

[0090] In some embodiments, the first radiating section 11b is connected to the feed section 15 via the sixteenth radiating segment 114b and grounded via the thirteenth radiating segment 111b, thereby forming a PIFA antenna structure.

[0091] The second radiating section 12b is located between the fourteenth radiating section 112b, the fifteenth radiating section 113b, and the sixteenth radiating section 114b. The second radiating section 12b is generally L-shaped and includes the connected eighteenth radiating section 122b and nineteenth radiating section 124b. Both the eighteenth radiating section 122b and the nineteenth radiating section 124b are generally elongated. One end of the eighteenth radiating section 122b is connected approximately perpendicularly to one end of the nineteenth radiating section 124b, and the other end of the eighteenth radiating section 122b is connected to ground (i.e., the other end of the eighteenth radiating section 122b is a grounding terminal) to provide grounding for the antenna structure 100b, and is spaced apart from the metal body 14. In some embodiments, the grounding terminal of the eighteenth radiating section 122b can be electrically connected to a grounding point on the metal body 14 or circuit board 205 via a spring clip, microstrip line, stripline, coaxial cable, etc., to achieve grounding. The eighteenth radiating section 122b is spaced apart from and parallel to the sixteenth radiating section 114b. The nineteenth radiation segment 124b is spaced apart from and parallel to the fourteenth radiation segment 112b. The free end of the nineteenth radiation segment 124b is spaced apart from and opposite to the fifteenth radiation segment 113b.

[0092] In some embodiments, when the first radiating section 11b receives current from the feed point of the circuit board 205 through the sixteenth radiating section 114b and the feed section 15, the current flows through the first radiating section 11b and couples to the connector 23 and the metal body 14. The current flows to ground through the thirteenth radiating section 111b and is further conducted in the metal body 14. The first radiating section 11b, the connector 23, the metal body 14, and the display unit 201 then form a resonant cavity metal structure to excite an eighth operating mode to generate a radiation signal in the eighth radiation frequency band. In some embodiments, the eighth operating mode is a low-frequency mode, and the eighth radiation frequency band includes a frequency band centered at 2440MHz.

[0093] In some embodiments, when the first radiating section 11b receives current from the feed point of the circuit board 205 through the sixteenth radiating section 114b and the feed section 15, the current flows through the first radiating section 11b and couples to the connector 23 and the metal body 14. The current flows to ground through the thirteenth radiating section 111b and is further conducted in the metal body 14. The first radiating section 11b, the connector 23, the metal body 14, and the display unit 201 then form a resonant cavity metal structure to excite a ninth operating mode to generate radiation signals in the ninth radiation frequency band. In some embodiments, the ninth operating mode is a harmonic mode of the low frequency, and the ninth radiation frequency band includes a frequency band centered at 4780MHz.

[0094] In some embodiments, when the first radiating section 11b receives current from the feed point of the circuit board 205 through the sixteenth radiating section 114b and the feed section 15, the current flows through the first radiating section 11b and couples to the connector 23. The current then flows to ground through the thirteenth radiating section 111b, thereby forming a resonant cavity metal structure with the first radiating section 11b, the connector 23, and the display unit 201 to excite a tenth operating mode to generate radiation signals in the tenth radiation frequency band. In some embodiments, the tenth operating mode is a high-frequency mode, and the tenth radiation frequency band includes a frequency band with a center frequency of 5250MHz.

[0095] In some embodiments, when the first radiating section 11b receives current from the feed point of the circuit board 205 through the sixteenth radiating section 114b and the feed section 15, the current flows through the first radiating section 11b and couples to the second radiating section 12b. The current then flows to ground through the second radiating section 12b, thereby exciting an eleventh operating mode to generate a radiated signal in the eleventh radiation frequency band. In some embodiments, the eleventh operating mode is a high-frequency mode, and the eleventh radiation frequency band includes a frequency band centered at 5750MHz.

[0096] In some embodiments, the eighth operating mode may cover the WiFi 2.4G mode, and the eighth radiating frequency band may include the 2400-2480MHz frequency band; the ninth, tenth, and eleventh operating modes may cover the WiFi 5G mode, and the ninth, tenth, and eleventh radiating frequency bands may include the 5180-5800MHz frequency band.

[0097] Figure 18 This diagram shows the return loss curves of the antenna structure 100b in three usage modes (i.e., tablet mode, telephone mode, and standby mode) of the electronic device 200b. Curve S181 represents the return loss value of the antenna structure 100b in telephone mode. Curve S182 represents the return loss value of the antenna structure 100b in tablet mode. Curve S183 represents the return loss value of the antenna structure 100b in standby mode.

[0098] Figure 19The graph shows the overall radiation efficiency of the antenna structure 100b in three usage modes (i.e., tablet mode, telephone mode, and standby mode) of the electronic device 200b. Curve S191 represents the overall radiation efficiency of the antenna structure 100b in telephone mode. Curve S192 represents the overall radiation efficiency of the antenna structure 100b in tablet mode. Curve S193 represents the overall radiation efficiency of the antenna structure 100b in standby mode. Combined with the average efficiency of the antenna structure 100b shown in Table 3, it can be concluded that the antenna structure 100b exhibits good radiation characteristics (-2.6 to -6.5 dB) in different usage modes within the designed frequency band.

[0099]

[0100] Table 3

[0101] Obviously, by Figure 18 and Figure 19 It is understood that the antenna structure 100b covers the WiFi 2.4G and WiFi 5G frequency bands, significantly improving its bandwidth and antenna efficiency. It can also cover global frequency band applications and support LTE-A carrier aggregation (CA) requirements. In another embodiment, the antenna structure 100b can also generate various different operating modes, such as low-frequency mode, intermediate-frequency mode, high-frequency mode, ultra-intermediate-frequency mode, ultra-high-frequency mode, 5G N78 mode, and 5G N79 mode, covering commonly used communication frequency bands globally. Specifically, the antenna structure 100b can cover GSM850 / 900 / WCDMA Band5 / Band8 / Band13 / Band17 / Band20 in the low frequency range, GSM 1800 / 1900 / WCDMA 2100 (1710-2170MHz) in the mid frequency range, LTE-A Band7, Band40, and Band41 (2300-2690MHz) in the high frequency range, 1427-1518MHz in the ultra-mid frequency range, 3400-3800MHz in the ultra-high frequency range, and the new 5G spectrum range includes N78 (3300-3800MHz) and N79 (4400-5000MHz). The antenna structure 100b is designed to operate in the GSM Qual-band, UMTS Band I / II / V / VIII bands, and the globally commonly used LTE 850 / 900 / 1800 / 1900 / 2100 / 2300 / 2500 bands.

[0102] In summary, the antenna structure 100b of this application forms a resonant cavity radiator by means of the metal body 14, the connector 23 and the display unit 201, so that the current fed into the antenna structure 100b can be coupled to the connector 23 (hinge), so that the hinge is part of the current conduction path. In this way, it can cover multiple frequency bands such as WiFi 2.4G and WiFi 5G, improve the bandwidth of the antenna, and make the radiation of the antenna structure 100b more wideband and have better antenna efficiency, covering the requirements of global frequency band applications and CA applications, while also having MIMO characteristics.

[0103] In another embodiment, the antenna structure may not be disposed on the carrier, but rather attached to the side of the circuit board, with the side of the circuit board close to the hinge (connector), so that the antenna structure is spaced apart from the hinge, thereby allowing the current of the antenna structure to be coupled to the hinge, enriching the current conduction path and thus improving the radiation bandwidth of the antenna structure.

[0104] It is understood that, in another embodiment, the antenna structure may be disposed in either the first housing 21 or the second housing 22.

[0105] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application. Those skilled in the art can also make other changes within the spirit of this application and use them in the design of this application, as long as they do not deviate from the technical effects of this application. These changes made in accordance with the spirit of this application should all be included within the scope of protection claimed in this application.

Claims

1. An antenna structure applied to an electronic device, the electronic device comprising a first housing, a second housing, and a hinge, the first housing and the second housing being rotatably connected via the hinge, the antenna structure being housed in either the first housing or the second housing, characterized in that, The antenna structure includes: Feeding section; A first radiating part, one end of which is connected to the feed part, and the other end of which has a first gap with the hinge; At least one grounding terminal; The first radiating part is fed with current through the feed part, and the first radiating part conducts current and couples the current to the hinge to excite at least one operating mode to generate a radiation signal of at least one radiation frequency band. The first radiating section includes a first radiating segment, a second radiating segment, a third radiating segment, and a fourth radiating segment connected in sequence; the first radiating segment and the third radiating segment are respectively perpendicularly connected to opposite ends of the second radiating segment, and the first radiating segment and the third radiating segment extend in opposite directions; the end of the first radiating segment away from the second radiating segment is electrically connected to a power supply through the feed section; the fourth radiating segment is perpendicularly connected to the end of the third radiating segment away from the second radiating segment and is arranged parallel to the second radiating segment, and the fourth radiating segment and the second radiating segment extend from opposite ends of the third radiating segment in the same extending direction; the fourth radiating segment is arranged parallel to the hinge and has the first interval.

2. The antenna structure as described in claim 1, characterized in that: The antenna structure also includes a metal component, which is arranged around the first radiating part, and the first radiating part, the hinge, and the metal component form a resonant cavity.

3. The antenna structure as described in claim 2, characterized in that: The length of the fourth radiation segment is greater than the length of the second radiation segment.

4. The antenna structure as described in claim 3, characterized in that: The antenna structure further includes a second radiating section, which comprises a fifth radiating segment, a sixth radiating segment, a seventh radiating segment, and an eighth radiating segment connected in sequence. The fifth and seventh radiating segments are perpendicularly connected to opposite ends of the sixth radiating segment, and their directions of extension are opposite. The other end of the fifth radiating segment is the grounding terminal and connected to ground, and is spaced apart from the metal component. The eighth radiating segment is perpendicularly connected to the end of the seventh radiating segment away from the sixth radiating segment and is parallel to the sixth radiating segment. The eighth and sixth radiating segments extend from opposite ends of the seventh radiating segment in the same direction. The eighth radiating segment is parallel to the hinge and has a second gap. The length of the eighth radiating segment is less than the length of the sixth radiating segment.

5. The antenna structure as described in claim 4, characterized in that: The antenna structure further includes a third radiating section, which includes a ninth radiating segment and a tenth radiating segment connected vertically. The end of the ninth radiating segment away from the tenth radiating segment is the grounding terminal and connected to the ground, and is disposed at a distance from the metal component. The tenth radiating segment is disposed parallel to the hinge and has a third gap. The length of the tenth radiating segment is less than the length of the ninth radiating segment.

6. The antenna structure as described in claim 5, characterized in that: The first, second, third, fifth, sixth, seventh, and ninth radiation segments are coplanar and located on a first plane; the fourth, eighth, and tenth radiation segments are coplanar and located on a second plane; the first plane is perpendicular to the second plane.

7. The antenna structure as described in claim 5, characterized in that: The first interval, the second interval, and the third interval are all the same size.

8. The antenna structure as described in claim 4, characterized in that: The antenna structure further includes a third radiating section, which includes an eleventh radiating segment and a twelfth radiating segment connected vertically. The end of the eleventh radiating segment away from the twelfth radiating segment is the grounding terminal and connected to the ground, and is disposed at a distance from the metal component. The eleventh radiating segment is spaced apart from and parallel to the first radiating segment. The twelfth radiating segment is spaced apart from and parallel to the second radiating segment, and the free end of the twelfth radiating segment is aligned with the third radiating segment. The length of the eleventh radiating segment is less than the length of the twelfth radiating segment.

9. The antenna structure as described in claim 8, characterized in that: The first, second, third, fifth, sixth, seventh, eleventh, and twelfth radiation segments are coplanar and located on a first plane; the fourth and eighth radiation segments are coplanar and located on a second plane; the first plane is perpendicular to the second plane.

10. The antenna structure as described in claim 2, characterized in that: The first radiating section includes a thirteenth, fourteenth, fifteenth, sixteenth, and seventeenth radiating segments; the thirteenth radiating segment is perpendicularly connected to one end of the fourteenth radiating segment, and the end of the thirteenth radiating segment away from the fourteenth radiating segment is the grounding terminal and connected to ground, and is spaced apart from the metal; the fifteenth radiating segment is connected to the other end of the fourteenth radiating segment, the extension direction of the fifteenth radiating segment is the same as the extension direction of the fourteenth radiating segment, and the width of the fifteenth radiating segment is greater than the width of the fourteenth radiating segment; the sixteenth radiating segment is perpendicular to one side of the fourteenth radiating segment, and... The interval is parallel to the thirteenth radiation segment; the sixteenth and thirteenth radiation segments are located on the same side of the fourteenth radiation segment; the end of the sixteenth radiation segment away from the fourteenth radiation segment is connected to the feed section; the length of the sixteenth radiation segment is less than the length of the thirteenth radiation segment; the seventeenth radiation segment is perpendicularly connected to the fourteenth and fifteenth radiation segments; the seventeenth radiation segment is located on the side of the fourteenth radiation segment opposite to the sixteenth and thirteenth radiation segments; the length of the seventeenth radiation segment is equal to the sum of the lengths of the fourteenth and fifteenth radiation segments; the seventeenth radiation segment is arranged parallel to the hinge and has a fourth interval.

11. The antenna structure as described in claim 10, characterized in that: The antenna structure further includes a second radiating section located between the fourteenth, fifteenth, and sixteenth radiating sections. The second radiating section includes an eighteenth and nineteenth radiating sections connected vertically. One end of the eighteenth radiating section is vertically connected to one end of the nineteenth radiating section, and the other end of the eighteenth radiating section is the grounding terminal and connected to ground, and is spaced apart from the metal component. The eighteenth radiating section is spaced apart from and parallel to the sixteenth radiating section. The nineteenth radiating section is spaced apart from and parallel to the fourteenth radiating section. The free end of the nineteenth radiating section is spaced apart from and opposite to the fifteenth radiating section.

12. The antenna structure as described in claim 11, characterized in that: The thirteenth, fourteenth, fifteenth, sixteenth, eighteenth, and nineteenth radiation segments are coplanar and located on the first plane; The seventeenth radiation segment is located on the second plane; the first plane is perpendicular to the second plane.

13. An electronic device, characterized in that: The electronic device includes an antenna structure and a hinge as claimed in any one of claims 1 to 12.

14. The electronic device as claimed in claim 13, characterized in that: The electronic device also includes a display unit, and both the first housing and the second housing are provided with display units.

15. The electronic device as claimed in claim 14, characterized in that: The first radiating part is located in the cavity formed by the first or second housing, the metal part and the hinge.

16. The electronic device as claimed in claim 14, characterized in that: The first housing and the second housing are in an unfolded state relative to each other via a hinge. The first housing, the hinge, and the second housing are connected side by side in sequence to put the electronic device in tablet mode. The first housing and the second housing are rotated relative to each other in a first direction with the hinge as the axis of rotation to be stacked, so that the electronic device is in telephone mode. The first housing and the second housing are rotated relative to each other in a second direction with the hinge as the axis of rotation to be stacked, so that the electronic device is in standby mode. The first direction is opposite to the second direction.

17. The electronic device as claimed in claim 13, characterized in that: The electronic device also includes a circuit board for providing feed current and grounding to the antenna structure.

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