Electronic device

Abstract

The present disclosure relates to an electronic device, comprising a first antenna, a second antenna and an isolation device; the working frequency bands of the first antenna and the second antenna both comprise a satellite L band; the isolation device is arranged between the first antenna and the second antenna, and the isolation device is in a first state during a transmitting phase of satellite communication and is in a second state during a receiving phase of satellite communication or during non-satellite communication. In this way, the present embodiment can increase the isolation degree of the first antenna and the second antenna during operation by arranging the isolation device, thereby ensuring the quality of satellite communication and improving the user experience.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of antennas, and in particular to an electronic device. BACKGROUND

[0002] In recent years, the satellite communication function of electronic devices has gradually become a popular function. Taking low-orbit satellite communication as an example, its frequency band is L band (1610-1626.5 MHz), the transmission and reception share the same frequency band, the transmission is single-antenna, and the receiving antenna can be double-antenna.

[0003] To realize satellite communication, the existing device adopts an external four-arm helical antenna, the antenna pattern of which is directed to the direction of the antenna, and the circular polarization axis is relatively good, which can achieve a high circular polarization gain and meet the demand of satellite communication. However, the external antenna in the prior art increases the size of the electronic device and reduces the user experience. SUMMARY

[0004] The present disclosure provides an electronic device to solve the problems in the related art.

[0005] According to a first aspect of an embodiment of the present disclosure, an electronic device is provided, comprising a first antenna, a second antenna and an isolation device; the working frequency bands of the first antenna and the second antenna both include a satellite L band;

[0006] The isolation device is arranged between the first antenna and the second antenna, and the isolation device is in a first state during a transmission phase of satellite communication and is in a second state during a receiving phase of satellite communication or during non-satellite communication.

[0007] Optionally, the isolation device comprises a preset frame arranged between the first antenna and the second antenna, and a partition strip is arranged between the preset frame and the first antenna and the second antenna, respectively.

[0008] Optionally, the isolation device further comprises a tuning circuit, at least one input end of the tuning circuit is electrically connected to at least one tuning point of the preset frame, and an output end of the tuning circuit is grounded.

[0009] The tuning circuit is configured to suspend the preset frame during the transmission phase of satellite communication.

[0010] The tuning circuit is configured to ground the preset frame during the receiving phase of satellite communication or during non-satellite communication.

[0011] Optionally, the number of input ends of the tuning circuit is 2, the tuning circuit comprises an antenna switch, a first matching network and a second matching network; a first end of the first matching network is electrically connected with the first tuning point of the preset bezel, and a second end of the first matching network is electrically connected with a first end of the antenna switch; a first end of the second matching network is electrically connected with the second tuning point of the preset bezel, and a second end of the second matching network is electrically connected with a second end of the antenna switch; a third end of the antenna switch is grounded; and a control end of the antenna switch is electrically connected with the processor of the electronic device.

[0012] Optionally, the number of input ends of the tuning circuit is 2, the tuning circuit comprises an antenna switch, a first matching network and a third matching network; a first end of the first matching network is electrically connected with the first tuning point of the preset bezel, and a second end of the first matching network is electrically connected with a first end of the antenna switch; a first end of the third matching network is electrically connected with the first feeding point of the preset bezel, and a second end of the third matching network is electrically connected with a second end of the antenna switch; a third end of the antenna switch is grounded; a control end of the antenna switch is electrically connected with the processor of the electronic device; and the preset bezel, the first matching network and the third matching network constitute an IFA antenna.

[0013] Optionally, the third matching network comprises at least one of the following: a zero-ohm resistor, an LC circuit and a capacitor.

[0014] Optionally, the first matching network comprises at least one of the following: a zero-ohm resistor, an LC circuit and a capacitor; and the second matching network comprises at least one of the following: a zero-ohm resistor, an LC circuit and a capacitor.

[0015] Optionally, the first antenna is arranged at a first vertex of the electronic device, and the second antenna is arranged at a second vertex of the electronic device.

[0016] Optionally, the first vertex is located at a first top corner of the electronic device, and the second vertex is located at a second top corner of the electronic device, and the first top corner and the second top corner are symmetric about a vertical central axis of the electronic device.

[0017] Optionally, a circular polarization gain pattern of the first antenna points to a first direction and contains a component deviated to an opposite direction of a second direction, and a circular polarization gain pattern of the second antenna points to the first direction and contains a component deviated to the second direction.

[0018] Optionally, the first antenna comprises a first top frame, a first side frame, a first feeding point and a first grounding point; the first top frame extends along the second direction, the first side frame extends along a third direction, and the first top frame is electrically connected with the first side frame; the third direction is parallel to the vertical central axis of the electronic device and perpendicular to the first direction and the second direction respectively; the first top frame is electrically connected with the mainboard of the electronic device via the first feeding point, and the first side frame is grounded via the first grounding point.

[0019] Optionally, the first antenna further comprises a third feeding point; the first top frame is electrically connected with the mainboard of the electronic device via the third feeding point.

[0020] Optionally, the second antenna comprises a second top frame, a second side frame, a second feeding point and a second grounding point; the second top frame extends along the second direction, the second side frame extends along a third direction, and the second top frame is electrically connected with the second side frame; the third direction is parallel to the vertical central axis of the electronic device and perpendicular to the first direction and the second direction respectively; the second top frame is electrically connected with the mainboard of the electronic device via the second feeding point, and the second side frame is grounded via the second grounding point.

[0021] Optionally, the second antenna further comprises a fourth feeding point; the second top frame is electrically connected with the mainboard of the electronic device via the fourth feeding point.

[0022] The technical scheme provided by the embodiments of the present disclosure can have the following beneficial effects:

[0023] The electronic device provided by the embodiments of the present disclosure comprises a first antenna, a second antenna and an isolation device; the working frequency bands of the first antenna and the second antenna both comprise a satellite L band; the isolation device is arranged between the first antenna and the second antenna, and the isolation device is in a first state during a transmitting stage of satellite communication and is in a second state during a receiving stage of satellite communication or during non-satellite communication. In this way, the isolation degree of the first antenna and the second antenna during operation can be increased by arranging the isolation device, the satellite communication quality is guaranteed, and the user experience is improved.

[0024] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the specification, serve to explain the principles of the present disclosure.

[0026] Figure 1 is a block diagram of an electronic device according to an exemplary embodiment.

[0027] Figure 2 is a block diagram of another electronic device according to an exemplary embodiment.

[0028] Figure 3 is a circuit diagram of a tuning circuit according to an exemplary embodiment.

[0029] Figure 4 is a block diagram of yet another electronic device according to an exemplary embodiment.

[0030] Figure 5 is a schematic diagram of an antenna S parameter according to an exemplary embodiment.

[0031] Figure 6 is a block diagram of yet another electronic device according to an exemplary embodiment.

[0032] Figure 7 is a schematic diagram of gain curves of a first antenna and a second antenna in a working condition 1 according to an exemplary embodiment.

[0033] Figure 8 is a schematic diagram of gain curves of a first antenna and a second antenna in a working condition 1 according to an exemplary embodiment.

[0034] Figure 9 is a schematic diagram of a circular polarization gain pattern of a first antenna according to an exemplary embodiment.

[0035] Figure 10 is a schematic diagram of gain curves of a first antenna and a second antenna in a working condition 2 according to an exemplary embodiment.

[0036] Figure 11 is a schematic diagram of gain curves of a first antenna and a second antenna in a working condition 2 according to an exemplary embodiment.

[0037] Figure 12 is a schematic diagram of a circular polarization gain pattern of a first antenna and a second antenna according to an exemplary embodiment.

[0038] Figure 13 is a schematic diagram of total antenna efficiency in a working condition 1 and a working condition 2 according to an exemplary embodiment.

[0039] Figure 14 is a block diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0040] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same numbers are used to designate the same elements, unless otherwise indicated. The exemplary embodiments described below do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of apparatuses consistent with some aspects of the present disclosure as detailed in the appended claims. It is noted that features of the below-described embodiments and implementations can be combined with each other, if not contradictory.

[0041] The electronic device according to an embodiment of the present disclosure is provided, referring to Figure 1 , which comprises a first antenna 10 arranged at a first vertex and a second antenna 20 arranged at a second vertex. The first vertex and the second vertex can be selected from four vertices or multiple vertices of the electronic device according to specific scenarios. In an example, the first vertex is located at a first corner Cnr1 of the electronic device, the second vertex is located at a second corner Cnr2 of the electronic device, and the first corner Cnr1 and the second corner Cnr2 are symmetric about a vertical center axis Vl of the electronic device 1; the operating frequency band of the first antenna 10 and the operating frequency band of the second antenna 20 both include the satellite L band (1610 MHz-1626.5 MHz).

[0042] The circular polarization gain pattern of the first antenna 10 points to a first direction D1 and contains a component deviated to a second direction D2 in the opposite direction; the circular polarization gain pattern of the second antenna 20 points to the first direction D1 and contains a component deviated to the second direction D2; the second direction D2 is parallel to a horizontal center axis Hl of the electronic device, and the second direction D2 is perpendicular to the first direction D1.

[0043] In an embodiment, considering that the electronic device is usually provided with a display screen and a back shell, in this embodiment, the side provided with the display screen is referred to as the front side, and the side of the back shell is referred to as the back side.

[0044] When the display screen of the electronic device is placed vertically, the effect of looking at the display screen from the back shell of the electronic device is as shown in Figure 1 , at this time, the upper left corner of the electronic device is the first corner, the upper right corner of the electronic device is the second corner, and the first corner and the second corner are symmetric about the vertical center axis Vl of the electronic device 1.

[0045] Taking the back side of the back shell of the electronic device as a reference, a three-dimensional coordinate system xyz of the electronic device is established based on the right-hand rule. Among them, the second coordinate axis Y is parallel to the horizontal center axis Hl of the electronic device, the third coordinate axis Z is parallel to the vertical center axis Vl of the electronic device, and the first coordinate axis X is perpendicular to the plane YOZ or the plane where the back shell of the electronic device is located. At this time, the first direction D1 is parallel to the first coordinate axis X and opposite in direction, Figure 1The first direction shown is a direction extending forward along the line of sight; the second direction D2 is parallel to and the same direction as the second coordinate axis Y, Figure 1 The second direction shown is a direction extending from left to right. In addition, the third direction D3 that follows is parallel to the third coordinate axis Z.

[0046] Continuing to refer to Figure 1 The first antenna 10 includes a first top frame 11, a first side frame 12, a first feed point 13 and a first grounding point 14. The first top frame 11 extends along the second direction D2, the first side frame 12 extends along the third direction, and the first top frame 11 and the first side frame 12 are electrically connected; the third direction is parallel to the vertical central axis of the electronic device and perpendicular to the first direction D1 and the second direction D2 respectively; the first top frame 11 is electrically connected to the mainboard 30 of the electronic device through the first feed point 13, and the first side frame 12 is grounded through the first grounding point 14 GND (not shown in the figure). Wherein, the middle frame or the metal back shell of the electronic device can be used as the common ground GND of the electronic device, at this time the first grounding point 14 can be electrically connected with the above-mentioned common ground GND. In this way, the first antenna 10 is used as an inverted-F antenna (IFA).

[0047] In this embodiment, in addition to the above-mentioned satellite L band (1610MHz-1626.5MHz), the working frequency band of the first antenna 10 can also include at least one of the following frequency bands: GPS L1 band (1575MHz), WIFI 2.4G band (2400MHz-2500MHz), WIFI 5G band (5725MHz-5850MHz), WIFI 6E band (5.925GHz-7.125GHz) and LTE B32 band (450MHz-3.8GHz). The skilled person can select a suitable range of working frequency bands according to the specific scene, so that the first antenna 10 can be applied to different communication scenes, and the corresponding scheme falls within the protection scope of the present disclosure.

[0048] Continuing to refer to Figure 1The second antenna 20 includes a second top frame 21, a second side frame 22, a second feeding point 23 and a second grounding point 24. The second top frame 21 extends along a second direction D2, the second side frame 22 extends along a third direction, and the second top frame 21 is electrically connected with the second side frame 22; the third direction is parallel to the vertical central axis Vl of the electronic device and is perpendicular to the first direction D1 and the second direction D2 respectively; the second top frame 21 is electrically connected with the mainboard 30 of the electronic device through the second feeding point 23, and the second side frame 22 is grounded GND through the second grounding point 24. Wherein, the middle frame or the metal back shell of the electronic device can be used as the common ground GND of the electronic device, at this time the second grounding point 24 can be electrically connected with the above-mentioned common ground GND. In this way, the second antenna 20 is used as an inverted-F antenna (IFA).

[0049] In the embodiment, in addition to the above-mentioned satellite L band (1610MHz-1626.5MHz), the working frequency band of the second antenna 20 can also include at least one of the following frequency bands: Cellular middle-high frequency band (1710MHz-2700MHz), LTE B3 (1710MHz-1880MHz) / B1 (1920MHz-2170MHz) / B40 (2300MHz-2400MHz) / B41 (2496MHz-2690MHz) / B39 (1880MHz-1920MHz) / B38 (2570MHz-2620MHz) / B34 (2010MHz-2025MHz) and NR N1 (1920MHz-2170MHz) / N3 (1710MHz-1880MHz) / N7 (2500MHz-2690MHz) / N41 (2496MHz-2690MHz) frequency band. The skilled person can select a suitable working frequency band range according to the specific scene, so that the second antenna 20 can be applicable to different communication scenes, and the corresponding scheme falls within the protection scope of the present disclosure.

[0050] In the embodiment, the first antenna 10 or the second antenna 20 is used as a transmitting antenna, and the first antenna 10 and the second antenna 20 are used together as a receiving antenna, which meets the "one transmission and two reception" requirement of satellite communication. It can be understood that in some possible examples, the first antenna 10 is used as a transmitting antenna and the second antenna 20 is used as a receiving antenna, which can also achieve the requirement of satellite communication, and the corresponding scheme falls within the protection scope of the present disclosure. In other possible examples, the second antenna 20 can be used as a transmitting antenna and the first antenna 10 can be used as a receiving antenna, which can also achieve the requirement of satellite communication, and the corresponding scheme falls within the protection scope of the present disclosure.

[0051] It should be noted that the first antenna 10 is used as a transmitting antenna in this embodiment because the frequency range of the satellite L band is close to the GPS L1 band (1575 MHz); if there is a GPS positioning requirement during satellite communication, the first antenna 10 can have good gain for both the GPS L1 band and the satellite L band. Alternatively, using the first antenna 10 as a transmitting antenna in this embodiment can better accommodate the GPS positioning and satellite communication requirements and improve communication efficiency.

[0052] It should be noted that the first antenna 10 and the second antenna 20 are used as receiving antennas in this embodiment, which can take into account the complementary characteristics of the circular polarization gain patterns of the two antennas, expand the beam width of the antenna of the electronic device, and achieve the purpose of improving communication efficiency.

[0053] Referring to Figure 2 , the electronic device further includes an isolation device 40 disposed between the first antenna 10 and the second antenna 20, which is in a first state during the transmitting phase of satellite communication and in a second state during the receiving phase of satellite communication or during non-satellite communication, which can improve the isolation between the first antenna 10 and the second antenna 20, thereby improving the quality of satellite communication and enhancing the user experience.

[0054] In an example, the isolation device includes a preset frame 41 disposed between the first antenna 10 and the second antenna 20. The preset frame 41 is made of metal material, which is the same as the first top frame 11 and the second top frame 21. The preset frame 41 is provided with a partition strip between the first antenna 10 and the second antenna 20. Referring to Figure 2 , the first top frame 11 of the first antenna 10 is provided with a first partition strip 51 between the first top frame 11 and the preset frame 41; the second top frame 21 of the second antenna 20 is provided with a second partition strip 52 between the second top frame 21 and the preset frame 41. The first partition strip 51 and the second partition strip 52 can be made of non-metallic materials such as plastic, which are used to realize electrical isolation between adjacent two top frames.

[0055] In this way, the preset frame 41 can increase the distance between the first antenna 10 and the second antenna 20, reduce the interference between the first antenna 10 and the second antenna 20, and improve the isolation of the first antenna 10 and the second antenna 20.

[0056] Referring to Figure 2In an embodiment, the isolation device further comprises a tuning circuit 60. At least one input of the tuning circuit 60 is electrically connected with at least one tuning point of the preset frame 41 respectively, and an output of the tuning circuit 60 is grounded GND (not shown in the figure). The tuning circuit 60 is used to suspend the preset frame (i.e. not grounded) during the transmitting stage of the satellite communication, and the tuning circuit 60 is used to ground the preset frame during the receiving stage of the satellite communication or the non-satellite communication. In this way, the preset frame 41 is suspended by the tuning circuit 60 in this embodiment, and the first antenna 10 can work in the high gain state in the case that the second antenna 20 does not work, so as to improve the transmitting gain. Moreover, the radio frequency signals transmitted and received by the first antenna 10 cannot propagate to the second antenna 20 through the preset frame 41, or the radio frequency signals transmitted and received by the second antenna 20 cannot propagate to the first antenna 10 through the preset frame 41 in this embodiment, so as to increase the isolation degree of the first antenna 10 and the second antenna 20, ensure that both of the antennas are in the high gain state, and improve the receiving gain.

[0057] In an embodiment, the number of inputs of the tuning circuit 60 is 2. Continue to refer to Figure 2 , the tuning circuit 60 comprises an antenna switch (K) 61, a first matching network 62 and a second matching network 63. A first end of the first matching network 62 is electrically connected with a first tuning point P1 of the preset frame 41, and a second end of the first matching network 62 is electrically connected with a first end of the antenna switch 61. A first end of the second matching network 63 is electrically connected with a second tuning point P2 of the preset frame 41, and a second end of the second matching network 63 is electrically connected with a second end of the antenna switch 61. A third end of the antenna switch 61 is grounded GND (not shown in the figure). A control end (not shown in the figure) of the antenna switch is electrically connected with a processor (not shown in the figure) of the electronic device. In this way, the first matching network 62 and / or the second matching network 63 can be grounded when the antenna switch 61 is turned on, so as to increase the isolation degree of the first antenna 10 and the second antenna 20.

[0058] In an example, the first matching network comprises at least one of the following: zero ohm resistance, LC circuit and capacitor; and / or, the second matching network comprises at least one of the following: zero ohm resistance, LC circuit and capacitor. Continue to refer to Figure 2 , Figure 2 In an example, the first matching network 62 and the second matching network 63 are both realized by zero ohm resistance. Refer to Figure 3 , the first matching network 62 is realized by zero ohm resistance R1, the second matching network 63 is realized by zero ohm resistance R2, and the antenna switch 61 is realized by 4XSPST antenna switch.

[0059] In another example, the first matching network 62 and the second matching network 63 are both implemented by capacitors, and the capacitance of the capacitors can be 33 pF. At this time, the preset frame 41 and the tuning circuit 60 can ground the capacitors and ground the preset frame 41 to meet the satellite communication requirements. And the preset frame 41 and the tuning circuit 60 described above can be used to constitute a SAR sensor, and when the capacitors are grounded, it is equivalent to an open circuit for the SAR sensor, thereby meeting the requirements of the SAR sensor and the antenna. In this way, the embodiment can expand the function of the preset frame 41 by adjusting the type of the first matching network 62 and the second matching network 63.

[0060] In another embodiment, the number of input ends of the tuning circuit 60 is 2. Referring to Figure 4 , the tuning circuit 60 includes the antenna switch 61, the first matching network 62, and the third matching network 64; the first end of the first matching network 62 is electrically connected with the first tuning point P1 of the preset frame 41, and the second end of the first matching network 62 is electrically connected with the first end of the antenna switch 61; the first end of the third matching network 64 is electrically connected with the first feeding point 13 of the preset frame 41, and the second end of the third matching network 64 is electrically connected with the second end of the antenna switch 61; the third end of the antenna switch 61 is grounded GND; the control end (not shown in the figure) of the antenna switch 61 is electrically connected with the processor (not shown in the figure) of the electronic device; the preset frame 41, the first matching network 62, and the third matching network 64 constitute an IFA antenna, also known as a third antenna. Among them, the third matching network 64 includes at least one of the following: a zero-ohm resistor, an LC circuit, and a capacitor, which can be specifically referred to Figure 2 the circuit of the first matching network. The working frequency band of the third antenna is the GPS L5 frequency band (1175.427 MHz-1177.473 MHz). The antenna switch 61 can ground the preset frame 41 when the satellite communication is in progress and both the first antenna and the second antenna are transmitting signals, and suspend the preset frame 41 when the satellite communication is in progress and the first antenna is transmitting signals. The S parameters of the first antenna, the second antenna, and the third antenna are as shown in Figure 5 . Referring to Figure 5, Sn,m represents the S parameter of the nth antenna in the working state m, n takes the values of 1, 2 and 3, and m takes the values of 1, 2 and 3. The S parameter of the first antenna in the working state 1 and working at 1.6 GHz can reach -6.691467 dB, the S parameter of the first antenna in the working state 1 and working at 2.4 GHz can reach -5.581186 dB, the S parameter of the second antenna in the working state 2 and working at 1.6 GHz can reach -0.8656044 dB, the S parameter of the second antenna in the working state 2 and working at 2.7 GHz can reach -5.074119 dB, and the S parameter of the third antenna in the working state 3 and working at 1.2 GHz can reach -9.094811 dB. In this way, the use rate of the preset frame can be improved.

[0061] In an embodiment, when the working frequency band of the first antenna 10 further includes a WIFI 5G frequency band or a WIFI 6E frequency band, referring to Figure 6 , the first antenna 10 further includes a third feeding point 15. The first top frame 11 is electrically connected to the mainboard 30 of the electronic device via the third feeding point 15. In this way, the radio frequency module (not shown in the figure) in the mainboard 30 can switch the first feeding point 13 or the third feeding point 15 to adjust the working frequency band of the first antenna 10, so as to expand the working frequency band of the first antenna, which is conducive to reducing the size and cost of the electronic device.

[0062] In an embodiment, when the working frequency band of the second antenna 20 further includes a Sub 6G frequency band, the second antenna 20 further includes a fourth feeding point 25. The second top frame 21 is electrically connected to the mainboard 30 of the electronic device via the fourth feeding point 25. In this way, the radio frequency module (not shown in the figure) in the mainboard 30 can switch the second feeding point 23 or the fourth feeding point 25 to adjust the working frequency band of the second antenna 20, so as to expand the working frequency band of the second antenna, which is conducive to reducing the size and cost of the electronic device.

[0063] In the embodiment, the working states of the first antenna 10 and the second antenna 20 of the electronic device include:

[0064] (1) Working state 1

[0065] The electronic device is in the transmitting stage during satellite communication, at this time the switch 61 is in the OFF state, at this time the first matching network and the second matching network are not grounded, at this time the preset frame of the isolation device is suspended. The first antenna 10 is in a transmitting state, the second antenna 20 is in a non-working state, the isolation degree of the first antenna 10 and the second antenna 20 is as shown in Figure 7 , the efficiency of the first antenna 10 and the second antenna 20 is as shown in Figure 8 , and the circular polarization gain pattern of the first antenna 10 is as shown in Figure 9 . Referring toFigure 7 , the S parameters of the first antenna 10 and the second antenna 20 are -8.193364 dB and -6.898365 dB respectively when the operating frequency is 1.6 GHz, the worst position of the isolation of the first antenna 10 and the second antenna 20 is below -12 dB, but the performance of the first antenna 10 is optimal and the second antenna 20 does not work, so that the reliable work of the first antenna 10 can be ensured. Referring to Figure 8 , the total efficiency of the first antenna 10 is -4.577056 dB when working at 2.7 GHz, and the total efficiency is -2.81044 dB at 1.71 GHz; the radiation efficiency and total efficiency of the first antenna 10 and the second antenna 20 at 1.62 GHz are about -3.0416348 dB, -3.7581818 dB, -4.3235657 dB and -6.5641313 dB respectively. Referring to Figure 9 , the circular polarization gain pattern of the first antenna 10 is mainly directed to the top direction of the electronic device and contains a component directed to the back direction, and the peak of the circular polarization gain can reach -2.1 dBic, which can provide better user experience in the process of searching for stars or aiming at stars, and has a better beam width.

[0066] (2) Working state 2

[0067] The electronic device is in the receiving stage during satellite communication, at this time the switch 61 is in the short state, at this time the first matching network and the second matching network are grounded, at this time the preset frame 41 of the isolation device is grounded. The first antenna 10 and the second antenna 20 are both in the receiving state. At this time, the isolation of the first antenna 10 and the second antenna 20 is as shown in Figure 10 , the efficiency of the first antenna 10 and the second antenna 20 is as shown in Figure 11 , and the circular polarization gain pattern of the first antenna 10 and the second antenna 20 is as shown in Figure 12 . Referring to Figure 10 and Figure 11 , the operating frequency of the first antenna 10 is about 1.62 GHz, and the operating frequency of the second antenna 20 deviates from 1.62 GHz, at this time the isolation of the first antenna 10 and the second antenna 20 can be controlled to below -14 dB, at this time the performance of the first antenna 10 and the second antenna 20 is balanced, and the GPS performance of the first antenna 10 is also higher. Referring to Figure 13 , the first antenna 10 and the second antenna 20 work together, and the first antenna 10 and the second antenna 20 both have components in the back direction of the electronic device, and the first antenna 10 is right and the second antenna 20 is left, the direction patterns of the two are complementary, at this time the circular polarization gain of the first antenna 10 and the second antenna 20 reaches -3.6 dBic and -4.8 dBic respectively. Referring to Figure 13 , the efficiency of the working state 1 and the working state 2 is 1.5 dBm higher.

[0068] It should be noted that the analysis method of Figure 10 , Figure 11 and Figure 12 can refer to the analysis content of Figure 7 , Figure 8 and Figure 9 , which will not be repeated here.

[0069] (3) Working state 3

[0070] The electronic device is in a non-satellite communication state, at which time the switching switch 61 is in a short state, at which time the first matching network and the second matching network are grounded, at which time the preset frame 41 is grounded. The first antenna 10 and the second antenna 20 are both in a receiving state, at which time the effect is as shown in working state 2, and the details are referred to the content of working state 2, which will not be repeated here.

[0071] In this embodiment, by making the metal frame into the first antenna, the second antenna and the isolation device, the function of one transmitting antenna and two receiving antennas is realized, the purpose of satellite communication with low-orbit satellites is achieved, and compatibility with GPS / WIFI, Cellular and other working frequency bands can be achieved. In addition, the preset frame of the intermediate isolation device can also tune the isolation degree of the first antenna and the second antenna, so that the satellite frequency band performance is optimal in the transmitting stage, and the performance of the two antennas is balanced in the receiving stage. In addition, in this embodiment, the first antenna and the second antenna are arranged at the top two corners, facing each other, and the gain pattern is complementary on the left and right (back view), which can expand the beam width when receiving, improve the success rate of user low-orbit satellite search, and does not need to be rotated greatly according to the movement of low-orbit satellites. When the user searches for a satellite with a handheld phone, the user experience is optimal.

[0072] It should be noted that the device embodiment shown in this embodiment matches the content of the above-mentioned method embodiment, and the content of the above-mentioned method embodiment can be referred to, which will not be repeated here.

[0073] Figure 14 is a block diagram of an electronic device according to an example embodiment. For example, the electronic device 1400 can be a smartphone, a computer, a digital broadcast terminal, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0074] Referring to Figure 14 , the electronic device 1400 can include one or more of the following components: a processing component 1402, a memory 1404, a power supply component 1406, a multimedia component 1408, an audio component 1410, an input / output (I / O) interface 1412, a sensor component 1414, a communication component 1416, and an image acquisition component 1418.

[0075] The processing component 1402 generally controls the overall operation of the electronic device 1400 such as the operation associated with display, telephony calls, data communication, camera operations, and recording operations. The processing component 1402 can include one or more processors 1420 to execute instructions. In addition, the processing component 1402 can include one or more modules to facilitate interaction with off-chip components. For example, the processing component 1402 can include a multimedia module to facilitate the interaction between the multimedia component 1408 and the processing component 1402.

[0076] The memory 1404 is configured to store various types of data to support operations of the electronic device 1400. Examples of these data include computer programs for any applications or methods operating on the electronic device 1400, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1404 can be implemented by any type of volatile or non-volatile memory devices 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 memory, flash memory, magnetic disc, or optical disc.

[0077] The power component 1406 provides power to the various components of the electronic device 1400. The power component 1406 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 1400. The power component 1406 can include a power chip, and the controller can communicate with the power chip to control the power chip to turn on or off the first switching device to supply or not supply power from the battery to the main board circuit.

[0078] The multimedia component 1408 includes a screen providing an output interface between the electronic device 1400 and a target object. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive input information from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and pressure related to the touching or sliding action.

[0079] The audio component 1410 is configured to output and / or input audio file information. For example, the audio component 1410 includes a microphone (MIC) that is configured to receive external audio file information when the electronic device 1400 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio file information can be further stored in the memory 1404 or transmitted via the communication component 1416. In some embodiments, the audio component 1410 also includes a speaker for outputting audio file information.

[0080] The I / O interface 1412 provides an interface between the processing component 1402 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like.

[0081] The sensor component 1414 includes one or more sensors for providing various state assessments for the electronic device 1400. For example, the sensor component 1414 can detect an open / closed state of the electronic device 1400, relative positioning of components, such as a display screen and a keypad of the electronic device 1400, a change in position of the electronic device 1400 or a component, presence or absence of a target object in contact with the electronic device 1400, orientation or acceleration / deceleration of the electronic device 1400, and a change in temperature of the electronic device 1400. In this example, the sensor component 1414 can include a magnetic sensor, a gyroscope, and a magnetic field sensor, and can further include an inertial sensor, an image sensor, and the like, wherein the magnetic field sensor includes at least one of a Hall sensor, a thin-film magnetoresistive sensor, and a magnetic liquid acceleration sensor.

[0082] The communication component 1416 is configured to facilitate wired or wireless communication between the electronic device 1400 and other devices. The electronic device 1400 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In an example embodiment, the communication component 1416 receives broadcast information or broadcast-related information from an external broadcast management system via a broadcast channel. In an example embodiment, the communication component 1416 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technology. In an example, the communication component 1416 includes the first antenna and the second antenna described above, and / or further includes a third antenna.

[0083] In an exemplary embodiment, the electronic device 1400 can be implemented with one or more application-specific integrated circuits (ASICs), digital information processors (DSPs), digital information processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements.

[0084] Other embodiments of the disclosure will be apparent to those of ordinary skill in the art from a review of the description of the disclosure and practice of the disclosure disclosed herein. It is intended that any and all variations, modifications, and adaptations of the full scope of the disclosure as set forth in any amended claims be included within the claims of the disclosure. The specification and examples given are intended as illustrative only and not in a limiting sense. For that reason, the true scope and spirit of the disclosure are indicated by the following claims.

[0085] It is to be understood that the disclosure is not limited to the precise construction described above and shown in the attached drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the disclosure is limited only by the claims appended hereto.

Claims

1. An electronic device, characterized in that, It includes a first antenna, a second antenna, and isolation devices; both the first and second antennas operate in the satellite L-band. The isolation device is disposed between the first antenna and the second antenna. The isolation device is in a first state during the transmission phase of satellite communication, in which the first antenna is in the transmission phase of satellite communication and the second antenna is not working. The isolation device is in a second state during the reception phase of satellite communication or during non-satellite communication, in which the first antenna and the second antenna work together during the reception phase of satellite communication, or both the first antenna and the second antenna work in a non-satellite communication state.

2. The electronic device according to claim 1, characterized in that, The isolation device includes a preset frame disposed between the first antenna and the second antenna, and the preset frame is provided with a partition strip between the first antenna and the second antenna respectively.

3. The electronic device according to claim 2, characterized in that, The isolation device further includes a tuning circuit; at least one input terminal of the tuning circuit is electrically connected to at least one tuning point of the preset frame, and the output terminal of the tuning circuit is grounded. The tuning circuit is used to suspend the preset frame during the transmission phase of satellite communication; The tuning circuit is used to ground the preset frame during the reception phase of satellite communication or during non-satellite communication.

4. The electronic device according to claim 3, characterized in that, The tuning circuit has two input terminals and includes an antenna switch, a first matching network, and a second matching network. The first terminal of the first matching network is electrically connected to a first tuning point on the preset frame, and the second terminal of the first matching network is electrically connected to a first terminal of the antenna switch. The first terminal of the second matching network is electrically connected to a second tuning point on the preset frame, and the second terminal of the second matching network is electrically connected to a second terminal of the antenna switch. The third terminal of the antenna switch is grounded. The control terminal of the antenna switch is electrically connected to the processor of the electronic device.

5. The electronic device according to claim 3, characterized in that, The tuning circuit has two input terminals and includes an antenna switch, a first matching network, and a third matching network. The first terminal of the first matching network is electrically connected to a first tuning point of the preset frame, and the second terminal of the first matching network is electrically connected to a first terminal of the antenna switch. The first terminal of the third matching network is electrically connected to a first feed point of the preset frame, and the second terminal of the third matching network is electrically connected to a second terminal of the antenna switch. The third terminal of the antenna switch is grounded. The control terminal of the antenna switch is electrically connected to the processor of the electronic device. The preset frame, the first matching network, and the third matching network constitute an IFA antenna.

6. The electronic device according to claim 5, characterized in that, The third matching network includes at least one of the following: a zero-ohm resistor, an LC circuit, and a capacitor.

7. The electronic device according to claim 4, characterized in that, The first matching network includes at least one of the following: a zero-ohm resistor, an LC circuit, and a capacitor; the second matching network includes at least one of the following: a zero-ohm resistor, an LC circuit, and a capacitor.

8. The electronic device according to claim 1, characterized in that, The first antenna is disposed at the first vertex of the electronic device, and the second antenna is disposed at the second vertex of the electronic device.

9. The electronic device according to claim 8, characterized in that, The first vertex is located at the first apex of the electronic device, and the second vertex is located at the second apex of the electronic device. The first apex and the second apex are symmetrical about the vertical central axis of the electronic device.

10. The electronic device according to claim 9, characterized in that, The circular polarization gain pattern of the first antenna points in the first direction and includes a component biased towards the second direction in the opposite direction, while the circular polarization gain pattern of the second antenna points in the first direction and includes a component biased towards the second direction.

11. The electronic device according to any one of claims 1 to 10, characterized in that, The first antenna includes a first top frame, a first side frame, a first feed point, and a first ground point; the first top frame extends along a second direction, the first side frame extends along a third direction, and the first top frame is electrically connected to the first side frame; the third direction is parallel to the vertical central axis of the electronic device and perpendicular to the first direction and the second direction, respectively; the first top frame is electrically connected to the motherboard of the electronic device via the first feed point, and the first side frame is grounded via the first ground point.

12. The electronic device according to claim 11, characterized in that, The first antenna further includes a third feed point; the first top frame is electrically connected to the motherboard of the electronic device via the third feed point.

13. The electronic device according to any one of claims 1 to 10, characterized in that, The second antenna includes a second top frame, a second side frame, a second feed point, and a second ground point; the second top frame extends along a second direction, the second side frame extends along a third direction, and the second top frame is electrically connected to the second side frame; the third direction is parallel to the vertical central axis of the electronic device and perpendicular to the first direction and the second direction, respectively; the second top frame is electrically connected to the motherboard of the electronic device via the second feed point, and the second side frame is grounded via the second ground point.

14. The electronic device according to claim 13, characterized in that, The second antenna also includes a fourth feed point; the second top frame is electrically connected to the motherboard of the electronic device via the fourth feed point.

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