Antenna systems and electronic equipment

Abstract

This specification provides an antenna system and electronic device. The antenna system includes a first radiating stub located on the top frame, and second and third radiating stubs located on the first side frame. One end of the first radiating stub is connected to one end of the second radiating stub and grounded. The other end of the second radiating stub is coupled to one end of the third radiating stub, and the other end of the third radiating stub is grounded. In this design, by disassembling the antennas, each antenna can be individually circuit-matched, reducing the antenna design complexity compared to multi-band fused antennas. Furthermore, it simplifies the RF front-end circuit structure, eliminating the need for complex combiner circuits, reducing link losses due to RF front-end devices, improving antenna radiation performance, and thus enhancing the device's satellite positioning and wireless communication capabilities.

Description

Technical Field

[0001] This specification relates to the field of electronic equipment technology, specifically to an antenna system and electronic equipment. Background Technology

[0002] With the continuous development of wireless communication technology, mobile terminals need to support more and more frequency bands and have an increasing number of antennas. How to utilize device space to achieve multi-antenna design and continuously improve antenna radiation performance has become an urgent problem to be solved. Utility Model Content

[0003] To improve the performance of radio frequency antennas in electronic devices, embodiments of this specification provide an antenna system and an electronic device having the antenna system.

[0004] In one aspect, this specification provides an antenna system including a first radiating stub, a second radiating stub, and a third radiating stub formed by the frame of an electronic device, wherein the first radiating stub is located on the top frame of the electronic device, and the second and third radiating stubs are located on a first side frame of the electronic device.

[0005] One end of the first radiating branch is connected to one end of the second radiating branch and grounded. The other end of the first radiating branch forms a free end through a first gap in the top frame. The other end of the second radiating branch forms a free end through a second gap in the first side frame. One end of the third radiating branch is coupled to the second radiating branch through the second gap, and the other end is grounded.

[0006] In some implementations, the first radiating stub is configured as a radiating stub of a satellite positioning antenna, the second radiating stub is configured as a radiating stub of a Bluetooth antenna, and the third radiating stub is configured as a radiating stub of a WiFi antenna.

[0007] In some embodiments, one end of the first radial branch and one end of the second radial branch are connected to the floor via a first rigid rib, which is located near the connection point between the top frame and the first side frame.

[0008] In some implementations, the antenna system further includes:

[0009] A first feed circuit is connected to the first radiating stub, and the first feed circuit excites the first radiating stub to generate a first resonance including the satellite positioning frequency band;

[0010] A second feeding circuit is connected to the second radiating stub, and the second feeding circuit excites the second radiating stub to generate a second resonance including the Bluetooth frequency band;

[0011] A third power supply circuit is connected to the third radiating stub, and the third power supply circuit excites the third radiating stub to generate a third resonance including the WiFi band.

[0012] In some embodiments, the second feeding circuit excites the second resonance generated by the second radiating stub, including the Bluetooth band and the low-frequency WiFi band;

[0013] The third resonance generated by the third radiating stub excited by the third power supply circuit includes the high-frequency WiFi band and the high-frequency band of cellular networks.

[0014] In some embodiments, a reinforcing rib structure is provided at the second gap location, and the reinforcing rib structure is coupled to the second radial branch and the third radial branch respectively.

[0015] In some embodiments, the antenna system further includes a fourth radiating stub, one end of which is connected to and grounded to the other end of the third radiating stub, and the other end of which forms a free end through a slot formed in the first side frame.

[0016] In some implementations, the fourth radiating stub is configured as a cellular network antenna that includes low-frequency and mid-to-high-frequency bands of the cellular network.

[0017] In some embodiments, the antenna system further includes a fifth radiating stub, which is a bent structure and includes a first portion located on the first side frame and a second portion located on the bottom frame.

[0018] The sixth radiating branch is located on the bottom frame, with one end grounded and the other end being a free end.

[0019] In some embodiments, the fifth radiating stub is configured as a cellular network antenna including a low-frequency band of the cellular network, and the sixth radiating stub is configured as a cellular network antenna including a mid-to-high frequency band of the cellular network.

[0020] In some embodiments, the antenna system further includes a seventh radiating stub, an eighth radiating stub, and a ninth radiating stub disposed on the second side frame of the electronic device;

[0021] One end of the seventh radiating branch is grounded, and the other end is coupled to one end of the eighth radiating branch. The other end of the eighth radiating branch is grounded. One end of the ninth radiating branch is connected, and the other end is a free end.

[0022] In some embodiments, the seventh radiating stub is configured as a cellular network antenna including low-frequency and high-frequency bands of the cellular network, the eighth radiating stub is configured as a cellular network antenna including mid-to-high-frequency bands of the cellular network, and the ninth radiating stub is configured as a cellular network antenna including high-frequency bands of the cellular network.

[0023] In some embodiments, the antenna system further includes a tenth radiating stub and an eleventh radiating stub disposed on the top bezel of the electronic device, the tenth radiating stub being configured as a cellular network antenna including the mid-high frequency and high-frequency bands of the cellular network, and the eleventh radiating stub being configured as a cellular network antenna including the mid-high frequency band of the cellular network.

[0024] Secondly, embodiments of this specification provide an electronic device including the antenna system described in any of the above embodiments.

[0025] The antenna system described in this specification includes a first radiating stub located on the top frame, and second and third radiating stubs located on the first side frame. One end of the first radiating stub is connected to one end of the second radiating stub and grounded. The other end of the second radiating stub is coupled to one end of the third radiating stub, and the other end of the third radiating stub is grounded. In this scheme, by disassembling the antenna layout, each antenna can be individually designed with circuit matching, reducing the antenna design complexity compared to multi-band fused antennas. Furthermore, it simplifies the RF front-end circuit structure; for example, it eliminates the need for complex combiner circuit structures, reducing link losses caused by RF front-end devices, improving antenna radiation performance, and thus enhancing the device's satellite positioning and wireless communication capabilities. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments or technical solutions in the prior art of this specification, the accompanying drawings used in the description of the specific embodiments or prior art will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this specification. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is an exploded structural diagram of an electronic device in some embodiments of this specification.

[0028] Figure 2 This is a schematic diagram of the antenna system in some embodiments of this specification.

[0029] Figure 3 This is a schematic diagram of the antenna system in some embodiments of this specification.

[0030] Figure 4This is a performance curve comparison chart of the antenna system in this manual and a traditional antenna system.

[0031] Figure 5 This is a performance curve comparison chart of the antenna system in this manual and a traditional antenna system.

[0032] Figure 6 This is a schematic diagram of the antenna system in some embodiments of this specification.

[0033] Figure 7 These are structural block diagrams of electronic devices in some embodiments of this specification. Detailed Implementation

[0034] The technical solutions of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this specification. Furthermore, the technical features involved in the different embodiments of this specification described below can be combined with each other as long as they do not conflict with each other.

[0035] Nowadays, with the development of wireless communication technology, electronic devices include more and more wireless communication antennas, such as GPS (Global Positioning System) antennas for satellite positioning, WiFi (wireless fidelity) antennas for wireless local area networks, 4G LTE (Long Term Evolution) antennas and 5G antennas for cellular networks, and BT (Bluetooth) antennas for Bluetooth connectivity.

[0036] Taking smartphones as an example, current mobile phone antennas are mainly frame antennas, which utilize the phone's metal frame as radiators for transmitting and receiving signals. Different antenna radiators are separated by creating gaps in the metal frame. Mobile phones contain a large number of antennas; however, the space within a phone is limited. Therefore, how to utilize the device space to achieve multi-antenna design and continuously improve antenna radiation performance has become an urgent problem to solve.

[0037] Taking GPS antennas, WiFi antennas, and Bluetooth antennas as examples, related technologies generally use the same antenna to be compatible with GPS, WiFi, and Bluetooth frequency bands. Complex matching circuits need to be set up in the antenna RF front end to adjust the circuit impedance to meet the antenna requirements of different frequency bands. Moreover, multiple combiners are needed to modulate and demodulate signals of different frequency bands, resulting in high antenna RF link loss, reduced antenna efficiency, and affected antenna radiation performance.

[0038] Based on this, the embodiments of this specification provide an antenna system and an electronic device having the antenna system, which reduces radio frequency link loss and improves antenna efficiency and radiation performance through a new antenna layout scheme.

[0039] In the embodiments of this specification, the electronic device can be any type of device suitable for implementation. It is understood that in the antenna system of the embodiments of this specification, the antenna radiator is mainly realized by the frame of the electronic device. Therefore, the electronic device can be any device with a metal frame, such as a smartphone, tablet computer, wearable device, etc. This specification does not limit this.

[0040] In some implementations, the electronic device is, for example, a smartphone. Figure 1 The structure of a smartphone in some embodiments of this specification is shown. The smartphone includes a frame 10, a screen assembly 20, and a back panel 30. The frame 10 serves as the main support structure of the smartphone and is generally made of metal. Various electrical and structural components of the smartphone can be arranged on the frame 10. For example, one side of the frame 10 is used to mount the screen assembly 20 to form the front of the smartphone, and the other side of the frame 10 is used to mount the back panel 30 to form the back of the smartphone.

[0041] The frame 10 includes a support portion 12 and a frame 11 formed around the edge of the support portion 12. After the screen assembly 20 and the back panel 30 are encapsulated, the frame 11 can serve as the side frame of the mobile phone. The frame 10 is generally made of metal materials such as aluminum alloy or stainless steel, so the frame 11 can serve as the metal radiator of the mobile phone antenna system. By opening a gap in the frame 11 and connecting the corresponding radio frequency circuit, signal communication of various frequency bands of the mobile phone can be realized. The support portion 12 can serve as the ground plane (GND) of the antenna system. The ground plane is a zero-potential element of the electrical system. In the antenna system, the antenna radiator is grounded by connecting to the ground plane.

[0042] In the embodiments described in this specification, the frame 11 of the electronic device is a rectangular structure. For ease of understanding and explanation, taking the rear view of the electronic device as an example, the upper side of the frame 11 is defined as the top frame, the lower side as the bottom frame, the side with the side button on the left is the first side frame, and the right side is the second side frame. The following will use this definition and describe it in conjunction with the accompanying drawings.

[0043] Of course, smartphones can also include other electrical structures, as detailed in this manual. Figure 1 The embodiments are not shown. For example, a circuit board, various sensors, batteries, etc. are usually disposed between the support portion 12 of the frame 10 and the back plate 30. Those skilled in the art will understand this, and it will not be described in detail here.

[0044] In addition, for ease of understanding and explanation, some of the terms and technical terms that appear in the embodiments below this specification are explained.

[0045] Radiator / Radiating Stub: This is the component in an antenna used to receive and transmit electromagnetic radiation. Radiators / radiating stubs are typically made of metal. The shape and size of the radiator / radiating stub vary depending on the antenna type and system. In some cases, the narrow definition of "antenna" refers to the radiator / radiating stub; that is, the radiator / radiating stub can be directly called an antenna. In a broader sense, however, the radiator / radiating stub represents the part of the antenna used for transmitting and receiving electromagnetic waves. Besides the radiator / radiating stub, an antenna often includes electrical components such as feed circuits and matching circuits.

[0046] Feed circuitry: This is a combination of all circuitry used for receiving and transmitting radio frequency (RF) signals. Feed circuitry may include transceivers and RF front-end circuitry; in some implementations, it may be an RF chip.

[0047] Feed point: This refers to the location on the radiator / radiating stub where it is electrically connected to the feed circuit. In some scenarios, the feed point on the radiator / radiating stub is also called the "top frame point," which can be understood as the connection point between the feed circuit and the metal frame.

[0048] Matching circuit: This is a circuit used to adjust the radiation characteristics of the antenna. In some embodiments, the matching circuit can be located between the feed circuit and the radiator / radiating stub. In other embodiments, the matching circuit can be located between the radiator / radiating stub and the ground plane. The matching circuit generally includes multiple tuning branches and can switch between multiple tuning branches. Each tuning branch is equipped with a tuning device, which can be, for example, a switch, capacitor, inductor, or other similar device.

[0049] Tuning point: refers to the location on the radiator / radiating stub where it is electrically connected to the matching circuit. It can be understood that when the matching circuit is located between the feed circuit and the radiator / radiating stub, the tuning point and the feed point represent the same location.

[0050] Suspended: This refers to a situation where there is no rigid structural connection between the radiator / radiating branch and the floor, thus the radiator / radiating branch is suspended relative to the floor. However, it is understandable that a suspended radiator / radiating branch can still be electrically connected to provide power or grounding.

[0051] Resonance: refers to the resonant frequency generated by the antenna. The resonant frequency can have a frequency range, that is, the frequency range in which the current resonates in the radiator / radiating stub. The frequency corresponding to the strongest resonance point is the center point of the resonant frequency, also called the center frequency point. It can be understood that the resonant signal in the embodiments of this disclosure is the radio frequency band generated by the antenna system.

[0052] Antenna radiation pattern: refers to the graph showing the relative field strength of the antenna radiation field as a function of direction at a certain distance from the antenna (far field). It is usually represented by two mutually perpendicular planar radiation patterns passing through the direction of maximum antenna radiation.

[0053] Coupling: refers to a connection method in which two components do not directly contact each other, but their electric or magnetic fields influence each other when energized, thus allowing them to transfer energy to each other.

[0054] Antenna gain refers to the ratio of the power density produced by an actual antenna to that of an ideal antenna at the same location in space, under the condition of equal input power. Antenna gain is closely related to the antenna radiation pattern and can be used to measure the antenna's ability to transmit and receive signals in a specific direction. Parameters representing antenna gain include dBm and dBi; in the specification and implementation, antenna gain is simply referred to as dB.

[0055] Secondly, for ease of understanding and explanation, the various frequency bands in the field of antennas will be explained below.

[0056] Currently, the mainstream satellite communication systems include the BeiDou short message communication system and the Tiantong satellite communication system, which enables satellite calls. The BeiDou system's uplink (Tx) frequency band is approximately 1610MHz–1626.5MHz, and its downlink (Rx) frequency band is approximately 2483.5MHz–2500MHz. The Tiantong system's uplink (Tx) frequency band is approximately 1980MHz–2010MHz, and its downlink (Rx) frequency band is approximately 2170MHz–2200MHz.

[0057] Cellular network frequency bands can be divided into low frequency (LB), mid-high frequency (MHB), and high frequency (HB) bands.

[0058] The low-frequency (LB) band ranges from approximately 700MHz to 960MHz, and mainly includes the B5, B8, B12, B17, B20, and B28 bands of LTE (Long Term Evolution); GSM850 and GSM900 bands of GSM (Global System for Mobile Communications); CDMA0, WCDMA5, and WCDMA8 bands of CDMA (Code Division Multiple Access); and N20 and N28 bands of 5G.

[0059] The mid-to-high frequency (MHB) band ranges from approximately 1710MHz to 2690MHz, and mainly includes the B1, B3, B4, B7, B34, B38, B39, B40, and B41 bands for LTE; GSM1800 and GSM1900 bands for GSM; WCDMA1, WCDMA2, WCDMA3, and WCDMA4 bands for CDMA; and N1, N3, N7, N38, and N41 bands for 5G.

[0060] The high-frequency (HB) bands mainly include the N77 band (frequency range 3.3GHz~4.2GHz), N78 band (frequency range 3.3GHz~3.8GHz), and N79 band (frequency range 4.8GHz~4.9GHz) of the 5G standard.

[0061] The main WiFi frequency bands currently include the WiFi 2.4G band (frequency range 2.4GHz~2.483GHz) and the WiFi 5G band (frequency range 5.15GHz~5.85GHz). Among them, the WiFi 2.4G band can be called the WiFi low-frequency band, and the WiFi 5G band can be called the WiFi high-frequency band.

[0062] The civilian frequency bands for GPS antennas mainly include the L1 and L5 bands. The L1 band is the basic frequency band, and an antenna supporting the GPS L1 band can be called a single-frequency GPS antenna. The L5 band is an auxiliary frequency band that can eliminate ionospheric errors and improve satellite positioning accuracy. An antenna that supports both the GPS L1 and L5 bands can be called a dual-frequency GPS antenna. The center frequency of the GPS L1 band is 1.575 GHz, and the center frequency of the L5 band is 1.176 GHz.

[0063] Figure 2 This specification shows schematic diagrams of the antenna systems of electronic devices in some embodiments. The following is a description of these diagrams in conjunction with... Figure 2 Please provide an explanation.

[0064] exist Figure 2 In the example, the electronic device is a smartphone. The gray area in the diagram represents the ground plane (GND) of the electronic device. Figure 1 As shown, the floor can be formed by the support part 12 of the electronic device frame 10, and the white strip structure is the metal frame 11 of the electronic device.

[0065] See Figure 2 As shown, the frame 11 is a rectangular structure. By opening slits in the frame 11, the radiating branches of the antenna are formed. The top edge of the frame 11 in the figure is defined as the top edge, the bottom edge as the bottom edge, the side with the side button on the left is the first side edge, and the side with the right side is the second side edge.

[0066] In some embodiments of this specification, the antenna system of the electronic device includes a first antenna ANT01, a second antenna ANT02, and a third antenna ANT03. The first antenna ANT01 may include a satellite positioning antenna (e.g., a GPS antenna), the second antenna ANT02 may include a Bluetooth antenna, and the third antenna ANT03 may include a WiFi antenna.

[0067] See Figure 2 As shown, the first antenna ANT01 includes a first radiating stub 110, which is located on the top edge of the electronic device. Specifically, in this example, the first radiating stub 110 is located on the top edge near the first side edge. One end of the first radiating stub 110 is connected to the ground via a first rigid rib 201 of a rigid structure, and the other end of the first radiating stub 110 forms a free end through a first slot F1 opened on the top edge. For example, the other end of the first radiating stub 110 can be coupled to other radiating stubs on the top edge through the first slot F1.

[0068] The second antenna ANT02 includes a second radiating stub 120, and the third antenna ANT03 includes a third radiating stub 130. Both the second radiating stub 120 and the third radiating stub 130 are located on the first side of the electronic device frame. One end of the second radiating stub 120 is connected to and grounded to the first radiating stub 110, for example... Figure 2 In the example, one end of the second radial branch 120 is connected to the floor via the first rigid rib 201, and the other end is coupled to one end of the third radial branch 130 via the second gap F2 opened on the first side frame. The other end of the third radial branch 130 is grounded, for example... Figure 2 In the example, the lower end of the third radial branch 130 is connected to the floor via a rigid rib.

[0069] In the embodiments described in this specification, the first antenna ANT01 further includes a circuit section, which powers and matches the first radiating stub 110 to form the first antenna ANT01. The frequency band corresponding to the first resonance generated by the first antenna ANT01 includes satellite positioning frequency bands, such as the GPS L1 band and / or the GPS L5 band. Of course, those skilled in the art will understand that satellite positioning frequency bands are not limited to the GPS band, but may also include relevant frequency bands of other satellite positioning systems, such as the BeiDou satellite positioning system, which will not be elaborated upon in this specification.

[0070] Similarly, the second antenna ANT02 and the third antenna ANT03 also include corresponding circuit components. The second antenna ANT02 is formed by feeding and matching the second radiating stub 120 through these circuit components, and the third antenna ANT03 is formed by feeding and matching the third radiating stub 130 through these circuit components. The frequency band corresponding to the second resonance generated by the second antenna ANT02 includes the Bluetooth communication frequency band, and the frequency band corresponding to the third resonance generated by the third antenna ANT03 includes the WiFi frequency band, such as the WiFi 2.4G frequency band and / or the WiFi 5G frequency band.

[0071] As described above, in this embodiment, the satellite positioning, Bluetooth, and WiFi antennas are laid out separately, and each antenna can be designed with its own circuit for matching. This reduces the antenna design complexity compared to multi-band fused antennas. Furthermore, it simplifies the RF front-end circuit structure, eliminating the need for complex combiner circuits, reducing link losses caused by RF front-end devices, improving antenna radiation performance, and thus enhancing the device's satellite positioning and wireless communication capabilities.

[0072] See Figure 2 As shown, in some embodiments, the first radial branch 110 and the second radial branch 120 can be formed from different portions of the same metal frame. For example... Figure 2 As shown, the frame at the upper left corner of the device has a bent structure, wherein a portion of the top frame forms a first radial branch 110, and a portion of the first side frame forms a second radial branch 120. The first radial branch 110 and the second radial branch 120 are electrically isolated from each other by a first rigid rib 201 connected to the floor. The first rigid rib 201 is located at the corner where the top frame and the first side frame meet.

[0073] In some embodiments, the first antenna ANT01 further includes a first feed circuit K01, which is electrically connected to the first radiating stub 110. The electrical connection point of the first feed circuit K01 on the first radiating stub 110 is the first feed point. In some embodiments, the first feed point may be located near the first gap F1.

[0074] The first feed circuit K01 is the radio frequency (RF) excitation source for the satellite positioning antenna, and it may include an RF front-end module (FEM) and an RF transceiver. An RF transceiver refers to the RF source device of the antenna system, which includes a transmitter and a receiver. The transmitter is used to modulate and transmit RF signals, and the receiver is used to receive and demodulate RF signals. The RF front-end module (FEM) is an integrated circuit module used to process the transmission and reception of RF signals. Internally, it typically includes multiple channels and switching switches, enabling switching between transmission (Tx) and reception (Rx) of the RF signal. Of course, those skilled in the art will understand that the first feed circuit K01 may also include other circuit structures or functional modules, such as a matching circuit, which will not be elaborated upon in this specification.

[0075] The first radiating stub 110 is fed by the first feeding circuit K01, which excites the first radiating stub 110 to generate a first resonance. The communication frequency band corresponding to the first resonance can include the satellite positioning frequency band, such as GPS L1, GPS L5 or Beidou satellite positioning frequency band.

[0076] In some embodiments, the second antenna ANT02 further includes a second feed circuit K02, which is electrically connected to the second radiating stub 120. The electrical connection point of the second feed circuit K02 on the second radiating stub 120 is the second feed point. In some embodiments, the second feed point may be located near the second gap F2.

[0077] The second feed circuit K02 is the radio frequency (RF) excitation source for the Bluetooth antenna, and it may include an RF front-end module (FEM) and an RF transceiver. An RF transceiver refers to the RF source device of an antenna system, comprising a transmitter and a receiver. The transmitter modulates and transmits RF signals, and the receiver receives and demodulates RF signals. The RF front-end module (FEM) is an integrated circuit module used to process the transmission and reception of RF signals. Internally, it typically includes multiple channels and switching switches to enable switching between transmission (Tx) and reception (Rx) of the RF signal. Of course, those skilled in the art will understand that the second feed circuit K02 may also include other circuit structures or functional modules, such as a matching circuit, which will not be elaborated upon in this specification.

[0078] The second radiating stub 120 is fed by the second feeding circuit K02, which excites the second radiating stub 120 to generate a second resonance. The communication frequency band corresponding to the second resonance can include the Bluetooth frequency band.

[0079] It is understood that the frequency range of the Bluetooth band is the same as that of the WiFi 2.4G band. Therefore, in some implementations, the second antenna ANT02 can be used to simultaneously support both the WiFi 2.4G and Bluetooth bands; that is, the second resonance generated by the second antenna ANT02 includes both the Bluetooth and WiFi bands. For example, in one embodiment, the second power supply circuit K02 can include both a Bluetooth power supply circuit and a WiFi power supply circuit, thereby achieving compatibility between the Bluetooth and WiFi 2.4G bands through RF front-end module switching. Those skilled in the art will understand this, and it will not be elaborated further in this specification.

[0080] In some embodiments, the third antenna ANT03 further includes a third feed circuit K03, which is electrically connected to the third radiating stub 130. The electrical connection point of the third feed circuit K03 on the third radiating stub 130 is the third feed point. In some embodiments, the third feed point may be located near the second slot F2.

[0081] The third feed circuit K03 is the radio frequency (RF) excitation source for the WiFi antenna, and it may include an RF front-end module (FEM) and an RF transceiver. An RF transceiver refers to the RF source device of an antenna system, comprising a transmitter and a receiver. The transmitter modulates and transmits RF signals, and the receiver receives and demodulates RF signals. The RF front-end module (FEM) is an integrated circuit module used to process the transmission and reception of RF signals. Internally, it typically includes multiple channels and switching switches to enable switching between transmission (Tx) and reception (Rx) of the RF signal. Of course, those skilled in the art will understand that the third feed circuit K03 may also include other circuit structures or functional modules, such as a matching circuit, which will not be elaborated upon in this specification.

[0082] The third radiating stub 130 is fed by the third feeding circuit K03, which excites the third radiating stub 130 to generate a third resonance. The communication frequency band corresponding to the third resonance can include the WiFi frequency band, such as the WiFi 2.4G frequency band and / or the WiFi 5G frequency band.

[0083] In some implementations, the third antenna ANT03 can be used to simultaneously support both the WiFi 5G band and the high-frequency band (HB) of cellular networks. For example, in one embodiment, the third feed circuit K03 can include both a WiFi feed circuit and a cellular network feed circuit, thereby achieving compatibility between the WiFi 5G band and the high-frequency band (HB) of cellular networks through RF front-end module switching. The high-frequency band of the cellular network can be, for example, the N77 band. Those skilled in the art will understand this, and it will not be elaborated further in this specification.

[0084] It is understandable that the length of the radiating stub affects the resonant frequency of the antenna. During antenna design, the length of the radiating stub needs to be set appropriately according to the antenna's operating frequency. For example, in some embodiments, to ensure that the second antenna ANT02 and the third antenna ANT03 meet the operating frequency requirements, the width of the second slot F2 may be relatively large. A larger slot can reduce the structural strength of the frame. Therefore, in some embodiments of this specification, a reinforcing rib structure can be provided at the location of the second slot F2 to improve the structural strength of the frame. The following will discuss this further. Figure 3 Please provide an explanation.

[0085] like Figure 3 As shown, in some embodiments, a reinforcing rib structure 202 can be provided at the location of the second gap F2. The reinforcing rib structure 202 is connected to the floor, with one end coupled to the second radiating stub 120 through a gap, and the other end coupled to the third radiating stub 130 through a gap. Thus, while meeting the radiating stub length requirements of the second antenna ANT02 and the third antenna ANT03, the second gap F2 can be prevented from being too large and affecting the structural strength. After injection molding the gaps at both ends of the reinforcing rib structure 202 with injection molding material, the structural strength at the second gap F2 can be guaranteed due to the rigidity of the reinforcing rib structure 202 itself.

[0086] In the above Figure 3 Based on the example antenna system, Figure 4 The antenna efficiency curve of the first antenna ANT01 is shown. Figure 5 The antenna efficiency curve of the second antenna ANT02 is shown.

[0087] See Figure 4 As shown in the figure, the black curve represents the GPS antenna efficiency curve in a traditional WiFi / Bluetooth / GPS multi-band compatible antenna system, while the blue curve represents the antenna efficiency curve of the first antenna ANT01 in this specification when it operates in the GPS frequency band. Figure 4 As can be seen from the comparison, the antenna efficiency of the solution in this specification is improved by 0.7dB to 1dB compared with the traditional solution, which effectively improves the radiation performance of the satellite positioning antenna.

[0088] See Figure 5 As shown in the figure, the black curve represents the efficiency curve of Bluetooth or WiFi 2.4G band in a traditional WiFi / Bluetooth / GPS multi-band compatible antenna system, while the blue curve represents the antenna efficiency curve of the second antenna ANT02 in this specification when it operates in the Bluetooth or WiFi 2.4G band. Figure 5 As can be seen from the comparison, the antenna efficiency of the solution in this manual is improved by 0.5dB to 0.8dB compared with the traditional solution, which effectively improves the radiation performance of Bluetooth or WiFi 2.4G.

[0089] As described above, in this embodiment, the satellite positioning, Bluetooth, and WiFi antennas are laid out separately, and each antenna can be designed with its own circuit for matching. This reduces the antenna design complexity compared to multi-band fused antennas. Furthermore, it simplifies the RF front-end circuit structure, eliminating the need for complex combiner circuits, reducing link losses caused by RF front-end devices, improving antenna radiation performance, and thus enhancing the device's satellite positioning and wireless communication capabilities.

[0090] Figure 6 This specification shows a schematic diagram of the antenna system of an electronic device in some embodiments. The following is a description of the structure of the antenna system. Figure 6 The antenna system described in this specification will be explained.

[0091] See Figure 6 As shown, in some embodiments, the antenna system further includes a fourth antenna ANT04, which includes a fourth radiating stub 140 and a fourth feed circuit K04. The fourth radiating stub 140 is located on the first side frame, and one end of the fourth radiating stub 140 is connected to and grounded to the third radiating stub 130, for example... Figure 6 In the example, the fourth radiating stub 140 is connected to the floor via a rigid structural rib, and the other end of the fourth radiating stub 140 forms a free end through a slot opened in the first side frame. In some example scenarios, the fourth feed circuit K04 excites the fourth radiating stub 140 to generate a fourth resonance, the frequency band of which may include the low-frequency (LB) and mid-high-frequency (MHB) bands of the cellular network.

[0092] In some embodiments, the antenna system further includes a fifth antenna ANT05, which includes a fifth radiating stub 150 and a fifth feed circuit K05. See also Figure 6 As shown, the fifth radiating branch 150 has a bent structure, for example... Figure 6 The example features an L-shaped structure. The fifth radiating stub 150 includes a first portion located on the first side border and a second portion located on the bottom border. The fifth radiating stub 150 can be configured as a floating stub, meaning there is no rigid structural connection between the fifth radiating stub 150 and the floor. In some example scenarios, the fifth feed circuit K05 excites the fifth radiating stub 150 to generate a fifth resonance, the frequency band of which may include the low-frequency (LB) band of the cellular network.

[0093] In some embodiments, the antenna system further includes a sixth antenna ANT06, which includes a sixth radiating stub 160 and a sixth feed circuit K06. See also Figure 6As shown, the sixth radiating stub 160 is located on the bottom frame of the electronic device. One end of the sixth radiating stub 160 is connected to the ground via a rigid rib, and the other end forms a free end through a slot opened in the bottom frame. In some example scenarios, the sixth feed circuit K06 excites the sixth radiating stub 160 to generate a sixth resonance, and the frequency band of the sixth resonance may include the mid-high frequency (MHB) band of the cellular network.

[0094] In some embodiments, the antenna system further includes a seventh antenna ANT07, an eighth antenna ANT08, and a ninth antenna ANT09 disposed on the second side frame. The seventh antenna ANT07 includes a seventh radiating stub 170 and a seventh feed circuit K07, the eighth antenna ANT08 includes an eighth radiating stub 180 and an eighth feed circuit K08, and the ninth antenna ANT09 includes a ninth radiating stub 190 and a ninth feed circuit K09.

[0095] See Figure 6 As shown, one end of the seventh radial branch 170 is connected to the floor through a rigid rib, and the other end is coupled to one end of the eighth radial branch 180 through a gap. The other end of the eighth radial branch 180 is connected to the floor through a rigid rib. One end of the ninth radial branch 190 is connected to the floor through a rigid rib, and the other end forms a free end through a gap.

[0096] Specifically, the seventh feed circuit K07 excites the seventh radiating stub 170 to generate the seventh resonance, the eighth feed circuit K08 excites the eighth radiating stub 180 to generate the eighth resonance, and the ninth feed circuit K09 excites the ninth radiating stub 190 to generate the ninth resonance. The frequency band of the seventh resonance can include the low-frequency (LB) and part of the high-frequency (HB) band of the cellular network, such as the N77 band. The frequency band of the eighth resonance can include the mid-high frequency (MHB) band of the cellular network. The frequency band of the ninth resonance can include the high-frequency (HB) band of the cellular network, such as the N77 band.

[0097] In some embodiments, the antenna system further includes a tenth antenna ANT10 and an eleventh antenna ANT11 disposed on the top bezel. The tenth antenna ANT10 includes a tenth radiating stub 200 and a tenth feed circuit K10. The eleventh antenna ANT11 includes an eleventh radiating stub 210 and an eleventh feed circuit K11. The tenth radiating stub 200 is suspended, with one end coupled to the first radiating stub 110 and the other end coupled to the eleventh radiating stub 210. The other end of the eleventh radiating stub 210 is grounded.

[0098] The tenth feed circuit K10 excites the tenth radiating stub 200 to generate the tenth resonance, and the eleventh feed circuit K11 excites the eleventh radiating stub 210 to generate the eleventh resonance. The frequency band of the tenth resonance can include part of the mid-high frequency (MHB) band and part of the high frequency (HB) band of the cellular network. For example, the mid-high frequency band can include the N41 band, and the high frequency band can include the N77 band. The frequency band of the eleventh resonance can include the mid-high frequency (MHB) band of the cellular network. In addition, in some embodiments, when the antenna system supports satellite communication, the tenth antenna ANT10 can be used to be compatible with satellite communication frequency bands such as Tiantong and Beidou.

[0099] As can be seen from the above, the antenna system layout scheme provided in this specification disperses multiple low-frequency, mid-high-frequency, and high-frequency antennas in different locations on the device. This avoids the risk of multiple antennas being held simultaneously when the user uses the electronic device, ensures that at least one antenna in each frequency band is usable, and improves the radiation performance and radiation efficiency of the antenna system.

[0100] In some embodiments, this specification provides an electronic device that may include the antenna system of any of the above embodiments. The type of electronic device is not limited in the embodiments described herein; it may be any suitable type of device, such as a smartphone, tablet computer, wearable device, etc., which will not be elaborated further in this specification.

[0101] Figure 7 The diagram shows a structural block diagram of an electronic device according to some embodiments of the present disclosure. The following is a description of the structure of the device in conjunction with the provided text. Figure 7 Some embodiments of the electronic device described herein will be explained.

[0102] Reference Figure 7 The electronic device 1800 may include one or more of the following components: a processing component 1802, a memory 1804, a power supply component 1806, a multimedia component 1808, an audio component 1810, an input / output (I / O) interface 1812, a sensor component 1816, and a communication component 1818.

[0103] Processing component 1802 typically controls the overall operation of electronic device 1800, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1802 may include one or more processors 1820 to execute instructions. Furthermore, processing component 1802 may include one or more modules to facilitate interaction between processing component 1802 and other components. For example, processing component 1802 may include a multimedia module to facilitate interaction between multimedia component 1808 and processing component 1802. As another example, processing component 1802 may read executable instructions from memory to implement relevant functions of the electronic device.

[0104] Memory 1804 is configured to store various types of data to support the operation of electronic device 1800. Examples of this data include instructions for any application or method operating on electronic device 1800, contact data, phonebook data, messages, pictures, videos, etc. Memory 1804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0105] Power supply component 1806 provides power to various components of electronic device 1800. Power supply component 1806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1800.

[0106] The multimedia component 1808 includes a display screen that provides an output interface between the electronic device 1800 and the user. In some embodiments, the multimedia component 1808 includes a front-facing camera and / or a rear-facing camera. When the electronic device 1800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0107] Audio component 1810 is configured to output and / or input audio signals. For example, audio component 1810 includes a microphone (MIC) configured to receive external audio signals when electronic device 1800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1804 or transmitted via communication component 1818. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

[0108] I / O interface 1812 provides an interface between processing component 1802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0109] Sensor assembly 1816 includes one or more sensors for providing state assessments of various aspects of electronic device 1800. For example, sensor assembly 1816 may detect the on / off state of electronic device 1800, the relative positioning of components such as the display and keypad of electronic device 1800, changes in position of electronic device 1800 or a component of electronic device 1800, the presence or absence of user contact with electronic device 1800, the orientation or acceleration / deceleration of electronic device 1800, and temperature changes of electronic device 1800. Sensor assembly 1816 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1816 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1816 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0110] Communication component 1818 is configured to facilitate wired or wireless communication between electronic device 1800 and other devices. Electronic device 1800 can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, 5G, or 6G, or combinations thereof. In one exemplary embodiment, communication component 1818 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1818 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0111] In an exemplary embodiment, the electronic device 1800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0112] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the embodiments. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom remain within the scope of protection created by this specification.

Claims

1. An antenna system, characterized by It includes a first radiating branch, a second radiating branch, and a third radiating branch formed by the frame of the electronic device. The first radiating branch is located on the top frame of the electronic device, and the second and third radiating branches are located on the first side frame of the electronic device. One end of the first radiating branch is connected to one end of the second radiating branch and grounded. The other end of the first radiating branch forms a free end through a first gap in the top frame. The other end of the second radiating branch forms a free end through a second gap in the first side frame. One end of the third radiating branch is coupled to the second radiating branch through the second gap, and the other end is grounded.

2. The antenna system according to claim 1, characterized in that, The first radiating stub is configured as a radiating stub of a satellite positioning antenna, the second radiating stub is configured as a radiating stub of a Bluetooth antenna, and the third radiating stub is configured as a radiating stub of a WiFi antenna.

3. The antenna system according to claim 1, characterized in that, One end of the first radial branch and one end of the second radial branch are connected to the floor through a first rigid rib, which is located near the connection point between the top frame and the first side frame.

4. The antenna system of claim 1, wherein, Also includes: A first feed circuit is connected to the first radiating stub, and the first feed circuit excites the first radiating stub to generate a first resonance including the satellite positioning frequency band; A second feeding circuit is connected to the second radiating stub, and the second feeding circuit excites the second radiating stub to generate a second resonance including the Bluetooth frequency band; A third power supply circuit is connected to the third radiating stub, and the third power supply circuit excites the third radiating stub to generate a third resonance including the WiFi band.

5. The antenna system according to claim 4, characterized in that, The second resonance generated by the second feeding circuit exciting the second radiating stub includes the Bluetooth band and the low-frequency WiFi band; The third resonance generated by the third radiating stub excited by the third power supply circuit includes the high-frequency WiFi band and the high-frequency band of cellular networks.

6. The antenna system according to claim 1, characterized in that, A reinforcing rib structure is provided at the second gap location, and the reinforcing rib structure is coupled to the second radial branch and the third radial branch respectively.

7. The antenna system according to claim 1, characterized in that, It also includes a fourth radiating branch, one end of which is connected to and grounded to the other end of the third radiating branch, and the other end of which forms a free end through a gap in the first side frame.

8. The antenna system according to claim 7, characterized in that, The fourth radiating stub is configured as a cellular network antenna that includes low-frequency and mid-to-high-frequency bands of the cellular network.

9. The antenna system of claim 1, wherein, Also includes: The fifth radiating branch is a bent structure, and the fifth radiating branch includes a first part located on the first side frame and a second part located on the bottom frame. The sixth radiating branch is located on the bottom frame, with one end grounded and the other end being a free end.

10. The antenna system according to claim 9, characterized in that, The fifth radiating stub is configured as a cellular network antenna including the low-frequency band of the cellular network, and the sixth radiating stub is configured as a cellular network antenna including the mid-to-high frequency band of the cellular network.

11. The antenna system of claim 1, wherein, It also includes a seventh radiating branch, an eighth radiating branch, and a ninth radiating branch disposed on the second side frame of the electronic device; One end of the seventh radiating branch is grounded, and the other end is coupled to one end of the eighth radiating branch. The other end of the eighth radiating branch is grounded. One end of the ninth radiating branch is connected, and the other end is a free end.

12. The antenna system according to claim 11, characterized in that, The seventh radiating stub is configured as a cellular network antenna including low-frequency and high-frequency bands of the cellular network, the eighth radiating stub is configured as a cellular network antenna including mid-to-high-frequency bands of the cellular network, and the ninth radiating stub is configured as a cellular network antenna including high-frequency bands of the cellular network.

13. The antenna system of claim 1, wherein, It also includes a tenth radiating stub and an eleventh radiating stub disposed on the top frame of the electronic device, the tenth radiating stub being configured to include a cellular network antenna in the mid-high frequency and high-frequency bands of the cellular network, and the eleventh radiating stub being configured to include a cellular network antenna in the mid-high frequency band of the cellular network.

14. An electronic device, comprising: Including the antenna system according to any one of claims 1 to 13.

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