Electronic device

Abstract

The invention discloses electronic equipment, and relates to the technical field of electronic products. The electronic equipment comprises a frame body and a first feed source of a first antenna, the frame body comprises a first frame, and the first frame comprises a radiation ring and a parasitic radiator; the radiation ring is in a rectangular ring shape, and the radiation ring comprises a first bending part and a second bending part; a gap is formed between the parasitic radiator and the first bending part; the radiation ring comprises a first feeding point, the first feed source is electrically connected with the first feeding point, and the radiation ring is a radiator of the first antenna; when the first antenna is in a working state, the radiation ring has a first radiation mode and a second radiation mode, the parasitic radiator has a third radiation mode, and the first radiation mode and the third radiation mode are respectively orthogonal to the second radiation mode. The circular polarization frequency bands generated by the first radiation mode and the second radiation mode comprise an uplink frequency band, and the circular polarization frequency bands generated by the second radiation mode and the third radiation mode comprise a downlink frequency band.

Description

Technical Field

[0001] This application relates to the technical field of electronic products, and particularly to an electronic device. Background Art

[0002] In related technologies, in order to improve the communication efficiency of antennas, dual-band antennas have been proposed in some scenarios to simultaneously achieve uplink and downlink transmissions through the dual-band antennas. For example, satellite antennas are relatively common dual-band antennas. Specifically, satellites can provide reliable links and extended communication coverage, making direct communication between phones and satellites a key technology for the next generation of mobile communication to achieve global seamless connection. The 3rd Generation Partnership Project (3GPP) protocol has determined the frequency bands for direct communication between phones and satellites. The Frequency Division Duplexing (FDD) used in the frequency bands of satellite direct communication allocates different frequency ranges for uplink and downlink communications to allow simultaneous two-way communication. However, in the actual application process of some dual-band antennas in related technologies, due to the Faraday rotation in the ionosphere, polarization mismatch losses are likely to occur, which in turn easily leads to poor communication effects of the antennas. Summary of the Invention

[0003] This application provides an electronic device, which can solve the problem that polarization mismatch losses are likely to occur due to the Faraday rotation in the ionosphere, and in turn easily lead to poor communication effects of the antenna.

[0004] In a first aspect, this application provides an electronic device, including a housing and a first feeder of a first antenna. The housing includes a first side frame, and the first side frame includes a radiation loop and a parasitic radiator;

[0005] The radiation loop is in a rectangular ring shape, and the radiation loop includes: a first bent portion and a second bent portion arranged at an angle; the length direction of the radiation loop is the same as the length direction of the first side frame, there is a gap between the parasitic radiator and the first bent portion, and the parasitic radiator is coupled to the radiation loop through the gap;

[0006] The radiation loop includes a first feeding point, and the first feeder is electrically connected to the first feeding point. Among them, the radiation loop is the radiator of the first antenna, the parasitic radiator is the parasitic stub of the radiation loop, the operating frequency band of the first antenna is a first frequency band, and the first frequency band includes an uplink frequency band and a downlink frequency band;

[0007] When the first antenna is in the working state, the radiation loop has a first radiation mode and a second radiation mode, the parasitic radiator has a third radiation mode, the first radiation mode and the third radiation mode are respectively orthogonal to the second radiation mode, and the circular polarization frequency bands generated by the first radiation mode and the second radiation mode include the uplink frequency band, and the circular polarization frequency bands generated by the second radiation mode and the third radiation mode include the downlink frequency band.

[0008] In the embodiments of the present application, since the working frequency band of the first antenna includes the uplink frequency band and the downlink frequency band, therefore, the first antenna is a dual-band antenna, and by making the radiation loop in a rectangular ring shape, the radiation loop includes: a first bending portion and a second bending portion arranged at an angle; the length direction of the radiation loop is the same as the length direction of the first frame, there is a gap between the parasitic radiator and the first bending portion, and the parasitic radiator is coupled to the radiation loop through the gap. In this way, during the working process of the first antenna, the radiation loop has a first radiation mode and a second radiation mode, the parasitic radiator has a third radiation mode, the first radiation mode and the third radiation mode are respectively orthogonal to the second radiation mode, and by making the circular polarization frequency bands generated by the first radiation mode and the second radiation mode include the uplink frequency band, and the circular polarization frequency bands generated by the second radiation mode and the third radiation mode include the downlink frequency band, circular polarization can be excited in two frequency bands respectively to realize dual-band circular polarization in the first antenna. At the same time, since the circular polarization antenna can reduce the polarization adaptation loss caused by Faraday rotation in the ionosphere, therefore, realizing dual-band circular polarization in the first antenna can reduce the polarization adaptation loss, and further improve the communication effect of the first antenna. Description of the Drawings

[0009] Figure 1 is a schematic structural diagram of the antenna in the first frame in the embodiments of the present application;

[0010] Figure 2 is one of the schematic structural diagrams of the antenna in the housing of the electronic device in the embodiments of the present application;

[0011] Figure 3 is the second schematic structural diagram of the antenna in the housing of the electronic device in the embodiments of the present application;

[0012] Figure 4 is for Figure 1 the S-parameter schematic diagram obtained by simulating the first antenna in;

[0013] Figure 5 is the schematic diagram of the current distribution of the first antenna at three resonance frequencies;

[0014] Figure 6It is the schematic diagram of S parameters obtained by simulation after adding a matching circuit to the first antenna in Figure 1 ;

[0015] Figure 7 It is the schematic diagram of the axial ratio obtained by simulation after adding a matching circuit to the first antenna in Figure 1 ;

[0016] Figure 8 It is the third schematic diagram of the structure of the antenna in the housing of the electronic device in the embodiment of the present application;

[0017] Figure 9 It is the fourth schematic diagram of the structure of the antenna in the housing of the electronic device in the embodiment of the present application;

[0018] Figure 10 It is the fifth schematic diagram of the structure of the antenna in the housing of the electronic device in the embodiment of the present application;

[0019] Figure 11 It is one of the schematic diagrams of S parameters obtained by simulating the antenna in Figure 8 ;

[0020] Figure 12 It is one of the schematic diagrams of S parameters obtained by simulating the antenna in Figure 8 ;

[0021] Figure 13 It is the schematic diagram of the axial ratio obtained by simulating the antenna in Figure 8 ;

[0022] Figure 14 It is the radiation pattern obtained by simulating the antenna in Figure 8 ; Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0024] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0025] The following will combine the accompanying drawings to provide a detailed description of an electronic device provided by an embodiment of this application through specific embodiments and their application scenarios.

[0026] Please refer to Figure 1 , an embodiment of this application provides an electronic device, including a housing 100 and a first feeder 200 of a first antenna 500. The housing 100 includes a first side frame 110, and the first side frame 110 includes a radiation loop 112 and a parasitic radiator 113;

[0027] The radiation loop 112 is in a rectangular ring shape, and the radiation loop 112 includes: a first bending portion 1125 and a second bending portion 1126 arranged at an angle; the length direction of the radiation loop 112 is the same as the length direction of the first side frame 110, and there is a gap between the parasitic radiator 113 and the first bending portion 1125, and the parasitic radiator 113 is coupled to the radiation loop 112 through the gap;

[0028] The radiation loop 112 includes a first feeding point 1127, and the first feeder 200 is electrically connected to the first feeding point 1127. Among them, the radiation loop 112 is the radiator of the first antenna 500, the parasitic radiator 113 is the parasitic stub of the radiation loop 112, the operating frequency band of the first antenna 500 is a first frequency band, and the first frequency band includes an uplink frequency band and a downlink frequency band;

[0029] When the first antenna 500 is in a working state, the radiation loop 112 has a first radiation pattern in a first direction and a second radiation pattern in a second direction, the parasitic radiator 113 has a third radiation pattern in the first direction, the first radiation pattern and the third radiation pattern are respectively orthogonal to the second radiation pattern, and the circular polarization frequency bands generated by the first radiation pattern and the second radiation pattern include the uplink frequency band, and the circular polarization frequency bands generated by the second radiation pattern and the third radiation pattern include the downlink frequency band.

[0030] Among them, the electronic device can refer to various electronic devices with antennas. For example, it can be a mobile phone, a tablet computer, a smart wearable device, a computer, etc. The above-mentioned frame 100 can be the middle frame of the electronic device.

[0031] The above-mentioned first antenna 500 can be various dual-band antennas, and the dual-band antenna is an antenna that can perform uplink and downlink transmissions simultaneously. For example, in some embodiments of the present application, the first antenna 500 can be a satellite antenna. The 3GPP protocol determines that the frequency band for direct communication from a phone to a satellite includes the n256 frequency band. Therefore, the above-mentioned first frequency band can be the n256 frequency band, where the uplink frequency band and the downlink frequency band are two different frequency bands in the n256 frequency band. For example, the uplink frequency band, that is, the frequency band from the terminal to the satellite, can have a frequency range of 1980 MHz to 2010 MHz. The above-mentioned downlink frequency band is the frequency band from the satellite to the terminal, and its frequency range can be 2170 MHz to 2200 MHz.

[0032] The above-mentioned radiation loop 112 and parasitic radiator 113 can be various conductive structures that can serve as antenna radiators. For example, in some embodiments of the present application, the materials of both the radiation loop 112 and the parasitic radiator 113 are copper, and their thickness can be set as needed. For example, the thickness value range of the radiation loop 112 and the parasitic radiator 113 can be 0.02 mm to 0.03 mm. In the embodiments of the present application, the thicknesses of both the radiation loop 112 and the parasitic radiator 113 are 0.02 mm.

[0033] The above-mentioned first feeder 200 can be a feeding circuit in the internal circuit board of the electronic device, and the first feeder 200 can be electrically connected to the first feeding point 1127 through the first microstrip feeder 300. Among them, the material of the first microstrip feeder 300 in the embodiments of the present application can be copper, and the thickness is 0.02 mm.

[0034] The above-mentioned radiation loop 112 can specifically be a rectangular ring-shaped and bent annular structure, and the radiation loop 112 can adopt various conductive materials.

[0035] The fact that the above-mentioned first radiation mode and the third radiation mode are respectively orthogonal to the second radiation mode means that: the first radiation mode is orthogonal to the second radiation mode, and, the third radiation mode is orthogonal to the second radiation mode. Among them, the fact that the first radiation mode is orthogonal to the second radiation mode can be called: the current direction of the first radiation mode is perpendicular to the current direction of the second radiation mode. The fact that the third radiation mode is orthogonal to the second radiation mode can be called: the current direction of the third radiation mode is perpendicular to the current direction of the second radiation mode.

[0036] In some embodiments of the present application, the current direction of the first radiation mode may be the first direction, the current direction of the second radiation mode may be along the second direction, and the current direction of the third radiation mode may be along the first direction. Wherein, the first direction may refer to the horizontal direction, and the second direction may refer to the vertical direction. Wherein, the horizontal direction is the length direction of the first frame 110, and the vertical direction may refer to the thickness direction of the electronic device, that is, the width direction of the first side surface 1111.

[0037] Taking the first frequency band as the n256 frequency band as an example, the antenna characteristics of the first antenna 500 in the embodiments of the present application are further explained. Please refer to Figure 4 , which is the S-parameter simulation curve graph obtained by simulating without adding impedance matching to the first antenna 500. Figure 4 It shows that the first antenna 500 has three resonance frequencies at 1.84 GHz, 2.05 GHz, and 2.4 GHz, which are respectively called mode1, mode2, and mode3. Among them, mode1 is the above-mentioned first radiation mode, mode2 is the above-mentioned second radiation mode, and mode3 is the above-mentioned third radiation mode. Figure 5 The current distributions at the three resonance frequencies are shown. Among them, mode1 is the 1-wavelength folded dipole mode of the rectangular folded loop and is horizontally polarized, mode2 is the 1-wavelength mode of the rectangular folded loop and is vertically polarized, and mode3 is the 0.5-wavelength mode of the floating metal stub. When the current of mode2 is orthogonal to mode1 and mode3 respectively, the dual-band circular polarization (CP) characteristic can be achieved.

[0038] The circular polarization frequency band generated by the above-mentioned first radiation mode and the second radiation mode may refer to: the common frequency band of the frequency band corresponding to the first radiation mode and the frequency band corresponding to the second radiation mode. Correspondingly, the circular polarization frequency band generated by the second radiation mode and the third radiation mode may refer to: the common frequency band of the frequency band corresponding to the second radiation mode and the frequency band corresponding to the third radiation mode.

[0039] In this embodiment, since the operating frequency band of the first antenna 500 includes an uplink frequency band and a downlink frequency band, the first antenna 500 is a dual-band antenna. By making the radiation loop 112 in a rectangular ring shape, the radiation loop 112 includes a first bent portion 1125 and a second bent portion 1126 arranged at an angle; the length direction of the radiation loop 112 is the same as the length direction of the first frame 110, and there is a gap between the parasitic radiator 113 and the first bent portion 1125, and the parasitic radiator 113 is coupled to the radiation loop 112 through the gap. In this way, during the operation of the first antenna 500, the radiation loop 112 has a first radiation mode in a first direction and a second radiation mode in a second direction, the parasitic radiator 113 has a third radiation mode in the first direction, the first radiation mode and the third radiation mode are orthogonal to the second radiation mode respectively, and the circular polarization frequency bands generated by the first radiation mode and the second radiation mode include the uplink frequency band, and the circular polarization frequency bands generated by the second radiation mode and the third radiation mode include the downlink frequency band. Thus, circular polarization can be excited in two frequency bands respectively to achieve dual-band circular polarization in the first antenna 500. At the same time, since the circular polarization antenna can reduce the polarization adaptation loss caused by Faraday rotation in the ionosphere, by achieving dual-band circular polarization in the first antenna 500, the polarization adaptation loss can be reduced, and further the communication effect of the first antenna 500 can be improved.

[0040] Optionally, the frequency of the second radiation mode is located between the frequency of the first radiation mode and the frequency of the third radiation mode;

[0041] The first radiation mode is a 1-wavelength dipole mode, the second radiation mode is a 1-wavelength mode, and the third radiation mode is a 0.5-wavelength mode.

[0042] The wavelength in the above 1 wavelength and 0.5 wavelength can both refer to the wavelength corresponding to the center frequency point of the first frequency band.

[0043] In some embodiments of the present application, the dimensions of the radiation loop 112 and the parasitic radiator 113 can be designed such that the first radiation mode is a 1-wavelength dipole mode along the first direction, the second radiation mode is a 1-wavelength mode along the second direction, and the third radiation mode is a 0.5-wavelength mode. For example, the length of the radiation loop 112 is 1 wavelength to achieve the first radiation mode as a 1-wavelength dipole mode along the first direction. The width of the radiation loop 112 is 1 wavelength to achieve the second radiation mode as a 1-wavelength mode along the second direction, where the width of the radiation loop 112 can refer to the side length in the width direction of the radiation loop 112, that is, the sum of the widths of the first bending portion 1125 and the second bending portion 1126. The length of the parasitic radiator 113 is 0.5 wavelength to achieve the third radiation mode as a 0.5-wavelength mode.

[0044] In other embodiments of the present application, the radiation loop 112 and the parasitic radiator 113 can also be connected to corresponding tuning circuits such that the first radiation mode is a 1-wavelength dipole mode along the first direction, the second radiation mode is a 1-wavelength mode along the second direction, and the third radiation mode is a 0.5-wavelength mode.

[0045] Please refer to Figure 1 , in Figure 1 the illustrated embodiment, the first antenna 500 can mainly transmit signals in the uplink frequency band through the radiation loop 112, and the first antenna 500 can mainly transmit signals in the downlink frequency band through the parasitic radiator 113.

[0046] In this embodiment, by making the frequency of the second radiation mode located between the frequency domains of the first radiation mode and the third radiation mode, and since the first radiation mode and the third radiation mode are orthogonal to the second radiation mode respectively, thus, circular polarization modes can be excited in the radiation loop 112 and the parasitic radiator 113 respectively, so that circular polarization modes can be excited in the uplink frequency band and the downlink frequency band respectively.

[0047] Optionally, the radiation loop 112 includes a first side 1123, the first feeding point 1127 is located on the first side 1123, and the distance between the first feeding point 1127 and the current zero point in the first side 1123 is greater than or equal to 5 mm.

[0048] In this embodiment, by making the distance between the first feeding point 1127 and the current zero point in the first side 1123 greater than or equal to 5 mm, in this way, the positions of the first feeding point 1127 and the current zero point in the radiation loop 112 can be relatively staggered, so as to provide a phase difference for the left-handed circular polarization design or the right-handed circular polarization design for the above-mentioned first radiation mode, second radiation mode and third radiation mode, thereby exciting left-handed or right-handed circular polarization in the first antenna 500.

[0049] Optionally, the radiation loop 112 further includes a first vertex 1121, a second vertex 1122 and a second side 1124. The first vertex 1121 and the second vertex 1122 are the two vertices corresponding to the two diagonals of the radiation loop 112. The first side 1123 and the second side 1124 are the two sides in the length direction of the radiation loop 112. The current zero points corresponding to the first radiation mode include the first vertex 1121 and the second vertex 1122. The current zero points corresponding to the second radiation mode include the midpoints of the first side 1123 and the second side 1124.

[0050] It can be understood that the positions of the first feeding point 1127 and the current zero point in the radiation loop 112 are relatively staggered, so as to excite the above-mentioned first radiation mode and second radiation mode in the radiation loop 112 through the first feeding point 1127.

[0051] Please refer to Figure 1 , in order to simultaneously excite two modes of the radiation loop 112, the position of the first feeding point 1127 must deviate from the center and the outermost side of the radiation loop 112 by a certain distance to stagger the current zero point. Please refer to Figure 1 , in some embodiments of the present application, the first vertex 1121 is the right endpoint of the first side 1123, the second vertex 1122 is the left vertex of the second side 1124, the first feeding point 1127 is located between the midpoint of the first side 1123 and the first vertex 1121, and the distance between the first feeding point 1127 and the midpoint of the first side 1123 is 5 mm. In this way, a phase difference for the left-handed circular polarization design can be provided for the above-mentioned first radiation mode, second radiation mode and third radiation mode to excite left-handed circular polarization. Please refer to Figure 14 , are the radiation pattern diagrams of the first antenna 500 at 2 GHz and 2.185 GHz along the xoz and yoz planes. From Figure 14 it can be obtained that the dual-frequency circular polarization antenna at 2 GHz and 2.185 GHz can generate circular polarization characteristics along the +z axis, and the corresponding radiation modes are all left-handed circular polarization.

[0052] In addition, in some other embodiments of the present application, the first feeding point 1127 is located on the side away from the first vertex 1121 at the midpoint of the first side 1123, and the distance between the first feeding point 1127 and the midpoint of the first side 1123 is 5 mm. At this time, a phase difference for a right-handed circular polarization design can be provided for the above-mentioned first radiation mode, second radiation mode, and third radiation mode to excite right-handed circular polarization.

[0053] In this embodiment, the specific position of the current zero point in the radiation loop 112 is determined. In this way, it is convenient to stagger the position of the first feeding point 1127 relative to the position of the current zero point in the radiation loop 112 based on the determined position of the current zero point.

[0054] Optionally, the radiation loop 112 includes a third side 1128. The third side 1128 is the side in the width direction of the radiation loop 112. The length direction of the parasitic radiator 113 is the same as the length direction of the radiation loop 112, and one end of the parasitic radiator 113 faces the third side 1128. The end of the parasitic radiator 113 facing the third side 1128 is coupled to the third side 1128.

[0055] It can be understood that in addition to the end of the parasitic radiator 113 facing the third side 1128 being coupled to the third side 1128, other regions of the parasitic radiator 113 can also be coupled to the radiation loop 112. In the embodiments of the present application, by making one end of the parasitic radiator 113 face the third side 1128, in this way, the coupling amount between the left end of the parasitic radiator 113 and the radiation loop 112 can be increased.

[0056] Please refer to Figure 3 , in some embodiments of the present application, the third side 1128 is the left side of the radiation loop 112. The left end of the parasitic radiator 113 faces the third side 1128.

[0057] In this embodiment, since the parasitic radiator 113 is mainly excited by the current coupling on the radiation loop 112, by making one end of the parasitic radiator 113 face the third side 1128, in this way, the coupling amount between the left end of the parasitic radiator 113 and the radiation loop 112 can be increased, thereby enhancing the excitation degree of the leftmost side of the parasitic radiator 113 to improve the radiation effect of the parasitic radiator 113.

[0058] Optionally, the electronic device further includes a first insulating substrate 111. The first insulating substrate 111 is strip-shaped, and the length direction of the first insulating substrate 111 is the same as the length direction of the first frame 110. The first insulating substrate 111 includes adjacent first side surface 1111 and second side surface 1112;

[0059] The first bending portion 1125 is located on the first side surface 1111, and the second bending portion 1126 is located on the second side surface 1112.

[0060] The above-mentioned first insulating substrate 111 may be an insulating dielectric plate provided as needed. Among them, the first insulating substrate 111 can be used to support and insulate the structures located on its surface. It can be understood that corresponding insulating substrates can also be provided for support on other frames of the electronic device. For example, please refer to Figure 2 , the frame body 100 is rectangular, and the frame body 100 includes four frames, which are respectively called the first frame 110, the second frame 120, the third frame 130, and the fourth frame 140. The second frame 120 includes a third insulating dielectric plate and a metal layer located outside the third insulating dielectric plate; the third frame 130 includes a fourth insulating dielectric plate and a metal layer located outside the fourth insulating dielectric plate; the fourth frame 140 includes a fifth insulating dielectric plate and a metal layer located outside the fifth insulating dielectric plate. The electronic device further includes a sixth insulating dielectric plate 400 and a ground plane located on the surface of the sixth insulating dielectric plate 400.

[0061] In some embodiments of the present application, the dielectric constant and material of each insulating dielectric plate can be set as needed. For example, the dielectric constant of each insulating dielectric plate is 4.4 or 4.5. In some embodiments of the present application, the materials of the above-mentioned first insulating dielectric plate and the second insulating dielectric plate are Rogers 5880 (εr = 2.2, tanδ = 0.0009), and the thickness is 0.508 mm. The materials of the above-mentioned third insulating dielectric plate, fourth insulating dielectric plate, fifth insulating dielectric plate, and sixth insulating dielectric plate 400 are FR4 (εr = 4.5, tanδ = 0.02), and the thickness is 0.5 mm. In some other embodiments of the present application, the materials of the above-mentioned first insulating dielectric plate and the second insulating dielectric plate are Rogers 5880 (εr = 2.2, tanδ = 0.0009), and the thickness is 0.508 mm. The materials of the above-mentioned third insulating dielectric plate, fourth insulating dielectric plate, fifth insulating dielectric plate, and sixth insulating dielectric plate 400 are FR4 (εr = 4.4, tanδ = 0.02), and the thickness is 0.5 mm.

[0062] The above radiator may be a metal patch fabricated on the surface of the first insulating substrate 111. The above radiation loop 112 may be a rectangular loop formed by bending along the intersection line of the above first side surface 1111 and the second side surface 1112.

[0063] Please refer to Figure 1 , the above first frame 110 may be the top frame of the electronic device. The above first side surface 1111 may be the side surface of the first insulating dielectric plate facing the top of the electronic device, and the second side surface 1112 may be the side surface of the first insulating dielectric plate facing the back cover of the electronic device, or the first side surface 1111 may be the side surface of the first insulating dielectric plate facing the top of the electronic device, and the second side surface 1112 may be the side surface of the first insulating dielectric plate facing the display screen of the electronic device.

[0064] In this embodiment, by making the electronic device further include a first insulating substrate 111, the first insulating substrate 111 is strip-shaped, and the length direction of the first insulating substrate 111 is the same as the length direction of the first frame 110. The first insulating substrate 111 includes adjacent first side surface 1111 and second side surface 1112; the first bending portion 1125 is located on the first side surface 1111, and the second bending portion 1126 is located on the second side surface 1112. In this way, the support and fixation of the radiation loop 112 can be achieved.

[0065] Optionally, the electronic device further includes a second insulating substrate 114. The second insulating substrate 114 is located on the first side surface 1111, and the parasitic radiator 113 is located on the surface of the second insulating substrate 114 facing away from the first side surface 1111.

[0066] In this embodiment, by making the second insulating substrate 114 located on the first side surface 1111, and the parasitic radiator 113 located on the surface of the second insulating substrate 114 facing away from the first side surface 1111, a gap can be formed between the parasitic radiator 113 and the first bending portion 1125, so as to facilitate the coupling of the parasitic radiator 113 and the radiation loop 112 through the gap.

[0067] Optionally, the first antenna 500 further includes a matching circuit. The first feeder 200 is electrically connected to the first feeding point 1127 through the matching circuit.

[0068] Among them, the matching circuit may be a matching circuit composed of components such as capacitors and inductors. The specific structure of the matching circuit can be set according to needs. For example, the matching circuit may include a capacitor and an inductor connected in parallel between the first feed source 200 and the first feeding point 1127. Another example is that the matching circuit may include a capacitor and an inductor. The first microstrip feed is grounded through the capacitor and the inductor respectively, and the first feed source 200 is electrically connected to the first feeding point 1127 through the first microstrip feeder 300.

[0069] Please refer to Figures 6 - 7 , which is a schematic diagram of S parameters and axial ratio obtained by simulation after adding a matching circuit to the first antenna 500. As Figure 6 shown, under the action of the matching circuit, the -6dB impedance bandwidth of the first antenna 500 is 1974MHz - 2025MHz (for the uplink) and 2166MHz - 2202MHz (for the downlink). In addition, the 3dB axial ratio (AR) bandwidth of the first antenna 500 is 1970MHz - 2070MHz (for the uplink) and 2125MHz - 2230MHz (for the downlink). The above results show that the first antenna 500 in the embodiment of the present application can achieve dual-band circular polarization characteristics in the n256 frequency band.

[0070] In this embodiment, by making the first antenna 500 further include a matching circuit, the first feed source 200 is electrically connected to the first feeding point 1127 through the matching circuit. In this way, impedance matching can be performed through the matching circuit, so that the first antenna 500 can achieve dual-band circular polarization characteristics in the first frequency band.

[0071] Optionally, the electronic device further includes a second frame 120, a second feed source 610, and a first filter 630. The first frame 110 and the second frame 120 are two adjacent frames of the frame body 100. The second frame 120 includes a second conductive segment 121;

[0072] The second conductive segment 121 includes a second feeding point 1211. The second feed source 610 is electrically connected to the second feeding point 1211. The second conductive segment 121 is electrically connected to the radiation loop 112 through the first filter 630. Among them, the second feed source 610 is the feed source of the second antenna 600, and the second antenna 600 includes the second conductive segment 121, the first filter 630, and the radiation loop 112.

[0073] Please refer to Figure 8, in some embodiments of the present application, the electronic device further includes a second frame 120, a second feeder 610, and a first filter 630. The first frame 110 and the second frame 120 are two adjacent frames of the frame body 100. The first frame 110 further includes a first conductive segment 115, the first conductive segment 115 is located on the surface of the first insulating substrate 111, and the first conductive segment 115 and the radiation loop 112 are arranged at intervals along the length direction of the first frame 110. There is a first break 116 between the first conductive segment 115 and the radiation loop 112, and the first conductive segment 115 is connected to a second conductive segment 121 in the second frame 120;

[0074] The second conductive segment 121 includes a second feeding point 1211, the second feeder 610 is electrically connected to the second feeding point 1211, and the first conductive segment 115 is electrically connected to the radiation loop 112 through the first filter 630. Wherein, the second feeder 610 is the feeder of the second antenna 600, and the second antenna 600 further includes the second conductive segment 121, the first conductive segment 115, the first filter 630, and the radiation loop 112. The operating frequency band of the second antenna 600 is the second frequency band.

[0075] Wherein, the above-mentioned second frame 120 may be the side frame of the electronic device. The above-mentioned second antenna 600 may be various antennas in the electronic device. For example, the second antenna 600 may be various cellular network antennas in the electronic device. The above-mentioned first filter 630 may be various types of filters, filtering elements, or filtering circuits. The second frequency band and the first frequency band are different frequency bands, and there is no intersection between the first frequency band and the second frequency band. The specific frequency band range of the second frequency band can be specifically set according to the needs of antenna design.

[0076] Please refer to Figure 8 , the second antenna 600 may further include a second microstrip feeder 620, and the second feeder 610 is electrically connected to the second feeding point 1211 through the second microstrip feeder 620.

[0077] In some embodiments of the present application, the above-mentioned first filter 630 may include three connection terminals, and the three connection terminals are respectively referred to as a first connection terminal, a second connection terminal, and a third connection terminal. Wherein, the first connection terminal is electrically connected to one end of the first conductive segment 115 facing the first break 116, the second connection terminal is connected to the radiation loop 112, and the third connection terminal is grounded.

[0078] In this embodiment, the second conductive segment 121 is electrically connected to the radiation loop 112 through the first filter 630. In this way, the second antenna 600 may include the second conductive segment 121, the first filter 630, and the radiation loop 112, such that the radiation loop 112 can be shared by the second antenna 600 and the first antenna 500, realizing the integration of the first antenna 500 and the second antenna 600, which is beneficial to saving the antenna space required for the second antenna 600.

[0079] Optionally, the operating frequency band of the second antenna 600 is the second frequency band, the passband of the first filter 630 includes the second frequency band, and the stopband of the first filter 630 includes the first frequency band.

[0080] The stopband of the first filter 630 mentioned above may refer to the signal frequency band attenuated by the first filter 630. The passband of the first filter 630 may refer to the signal frequency band that can pass through the first filter 630 without attenuation. Specifically, for the first filter 630, the signal within the passband of the first filter 630 can pass through the first filter 630, and when the signal within the passband of the first filter 630 passes through the first filter 630, the amplitude of the signal will not be attenuated. Correspondingly, the signal within the stopband of the first filter 630 is filtered out or greatly weakened when passing through the first filter 630, and finally weakened to a negligible level.

[0081] Since the stopband of the first filter 630 includes the first frequency band and the passband of the first filter 630 includes the second frequency band, the first filter 630 can allow the signal of the second frequency band to pass through, and at the same time, the first filter 630 does not allow or blocks the signal of the first frequency band from passing through.

[0082] In this embodiment, since the signal of the first antenna 500 cannot pass through the first filter 630, the end of the radiation loop 112 facing the first break 116 is in a floating state relative to the first antenna 500. The signal of the second antenna 600 passes through the first filter 630 and enters the radiation loop 112. Therefore, relative to the second antenna 600, the first conductive segment 115 and the radiation loop 112 are in a conducting state at the first break 116 to realize the sharing of the radiation loop 112, realizing the integration of the first antenna 500 and the second antenna 600, which is beneficial to saving the antenna space required for the second antenna 600.

[0083] Optionally, the second frame 120 further includes a third conductive segment 122, the electronic device further includes a third feeder 710 and a second filter 730. The third conductive segment 122 is located on a side of the second conductive segment 121 away from the first frame 110, and there is a second break 123 between the second conductive segment 121 and the third conductive segment 122. The third conductive segment 122 includes a third feeding point 1221, and the third feeder 710 is electrically connected to the third feeding point 1221;

[0084] The second conductive segment 121 includes a first connection point 1212, which is located between the second feeding point 1211 and a first end 1213 of the second conductive segment 121. The first end 1213 is an end of the second conductive segment 121 facing the second break 123, and the first connection point 1212 is grounded through the second filter 730;

[0085] Wherein, the third feeder 710 is a feeder of a third antenna 700, and the third antenna 700 includes: the third conductive segment 122, and a region of the second conductive segment 121 between the first connection point 1212 and the first end 1213.

[0086] Please refer to Figure 8 and Figure 9 , in some embodiments of the present application, the second frame 120 further includes a third conductive segment 122, the electronic device further includes a third feeder 710 and a second filter 730. The third conductive segment 122 is located on a side of the second conductive segment 121 away from the first conductive segment 115, and there is a second break 123 between the second conductive segment 121 and the third conductive segment 122. The third conductive segment 122 includes a third feeding point 1221, and the third feeder 710 is electrically connected to the third feeding point 1221;

[0087] The second conductive segment 121 includes a first connection point 1212, which is located between the second feeding point 1211 and a first end 1213 of the second conductive segment 121. The first end 1213 is an end of the second conductive segment 121 facing the second break 123, and the first connection point 1212 is grounded through the second filter 730;

[0088] Wherein, the third feeder 710 is a feeder of a third antenna 700, and the third antenna 700 further includes: the third conductive segment 122, and a region of the second conductive segment 121 between the first connection point 1212 and the first end 1213. The operating frequency band of the third antenna 700 is the third frequency band.

[0089] The above-mentioned third antenna 700 can be various antennas in an electronic device. For example, the third antenna 700 can be various cellular network antennas in an electronic device. The above-mentioned second filter 730 can be various types of filters, filtering elements or filtering circuits. The above-mentioned first frequency band, second frequency band and third frequency band are different frequency bands, and there is no intersection between any two of the first frequency band, second frequency band and third frequency band. The specific frequency band range of the third frequency band can be specifically set according to the needs of antenna design.

[0090] Please refer to Figure 8 , the third antenna 700 may further include a third microstrip feeder 720, and the third feed source 710 is electrically connected to the third feeding point 1221 through the third microstrip feeder 720.

[0091] The first antenna 500 in the electronic device in the embodiment of the present application can meet the uplink and downlink communication link requirements of direct connection between the terminal and the satellite. At the same time, the first antenna 500 can be integrated into the traditional cellular network antenna design of the electronic device. Among them, the structure of the first antenna 500 is the same as that of Figure 1 the embodiment shown. The second antenna 600 is composed of a radiation loop 112 and a monopole metal branch in the first antenna 500. Among them, the first filter 630 is used to realize the co-branch integration of the first antenna 500 and the second antenna 600. The third antenna 700 is composed of two monopole branches with their mouths facing each other, and one of the branches is shared and integrated with the second antenna 600 through the second filter 730.

[0092] In this embodiment, by grounding the first connection point 1212 through the second filter 730, in this way, the third antenna 700 may include: the third conductive segment 122, and the region of the second conductive segment 121 between the first connection point 1212 and the first end 1213. Since the second antenna 600 and the third antenna 700 can share the region of the second conductive segment 121 between the first connection point 1212 and the first end 1213, thus, the integration of the second antenna 600 and the third antenna 700 is realized, which is beneficial to saving the antenna space required by the third antenna 700.

[0093] Optionally, the operating frequency band of the third antenna 700 is the third frequency band, the passband of the second filter 730 includes the third frequency band, and the stopband of the second filter 730 includes the second frequency band.

[0094] The stopband of the second filter 730 described above may refer to: the signal frequency band attenuated by the second filter 730. The passband of the second filter 730 may refer to: the signal frequency band that can pass through the second filter 730 without attenuation. Specifically, for the second filter 730, the signal within the passband of the second filter 730 can pass through the second filter 730, and when the signal within the passband of the second filter 730 passes through the second filter 730, the amplitude of the signal will not be attenuated. Accordingly, the signal within the stopband of the second filter 730 is filtered out or significantly weakened when passing through the second filter 730, and finally weakened to a negligible level.

[0095] Since the stopband of the second filter 730 includes the second frequency band and the passband of the second filter 730 includes the third frequency band, the second filter 730 can allow the signal of the third frequency band to pass through. At the same time, the second filter 730 does not allow or blocks the signal of the second frequency band from passing through.

[0096] Please refer to Figure 8 and Figure 9 , because the stopband of the second filter 730 includes the second frequency band, when the antenna signal of the second antenna 600 is transmitted to the first connection point 1212, it cannot pass through the second filter 730 and enter the floor, but continues to be transmitted to the side of the second break 123. In this way, it can be ensured that the setting of the second filter 730 does not affect the normal working process of the second antenna 600, that is, it is ensured that the second antenna 600 can include the complete second conductive segment 121. Accordingly, because the passband of the second filter 730 includes the third frequency band, during the operation of the third antenna 700, when the antenna signal of the third antenna 700 is transmitted to the second break 123, it can be coupled to the second conductive segment 121 through the second break 123. When the antenna signal of the third antenna 700 is transmitted along the second conductive segment 121 to the first connection point 1212, it can be transmitted to the floor through the second filter 730. Therefore, after the antenna signal of the third antenna 700 is transmitted through the first connection point 1212, it will not be transmitted to the side of the second feeding point 1211 anymore. At this time, the third antenna 700 includes the area of the second conductive segment 121 between the first connection point 1212 and the first end 1213, that is, the second antenna 600 and the third antenna 700 share the area of the second conductive segment 121 between the first connection point 1212 and the first end 1213.

[0097] Taking the n256 frequency band and the 4G LTE cellular network frequency band as examples, Figure 11 and Figure 12 give the S-parameter curve graphs obtained by simulating the Figure 8 shown embodiment. As Figure 6 shown,Figure 8 The -6dB impedance bandwidths of the antennas in the illustrated embodiments are 690 MHz to 965 MHz (for the LB band), 1660 MHz to 2780 MHz (for the MHB band), 1920 MHz to 2050 MHz (for the uplink), and 2160 MHz to 2225 MHz (for the downlink). In this embodiment, the isolation degrees S21 (between the first antenna 500 and the third antenna 700) and S32 (between the second antenna 600 and the third antenna 700) of each antenna are less than -25 dB, and S31 (between the first antenna 500 and the second antenna 600) is less than -15 dB.

[0098] In addition, as Figure 13 For Figure 8 The axial ratio schematic diagram obtained by simulating the illustrated embodiment. Figure 13 The results show that Figure 8 The 3dB axial ratio (AR) bandwidths of the antennas in the illustrated embodiments are 1980 - 2070 MHz (for the uplink), 2160 - 2270 MHz (for the downlink).

[0099] The above results show that the proposed first antenna 500 can achieve dual - band circular polarization characteristics in the n256 band, and this antenna can be integrated into traditional cellular antennas.

[0100] In this embodiment, since the stop band of the second filter 730 includes the second frequency band, when the antenna signal of the second antenna 600 is transmitted to the first connection point 1212, it cannot enter the floor through the second filter 730 but continues to be transmitted toward the second break 123. In this way, it can be ensured that the setting of the second filter 730 does not affect the normal operation of the second antenna 600, that is, it is ensured that the second antenna 600 can include the complete second conductive segment 121. Correspondingly, since the pass band of the second filter 730 includes the third frequency band, during the operation of the third antenna 700, when the antenna signal of the third antenna 700 is transmitted to the second break 123, it can be coupled to the second conductive segment 121 through the second break 123. When the antenna signal of the third antenna 700 is transmitted to the first connection point 1212 along the second conductive segment 121, it can be transmitted to the floor through the second filter 730. Therefore, after the antenna signal of the third antenna 700 is transmitted through the first connection point 1212, it will not be transmitted toward the second feeding point 1211 side. At this time, the third antenna 700 includes the region of the second conductive segment 121 between the first connection point 1212 and the first end 1213, that is, the second antenna 600 and the third antenna 700 share "the region of the second conductive segment 121 between the first connection point 1212 and the first end 1213", so that the integration of the second antenna 600 and the third antenna 700 and the multiplexing of antenna branches can be realized, which is beneficial to saving the antenna space required for the third antenna 700.

[0101] Optionally, the first antenna 500 is a satellite antenna, and the second antenna 600 and the third antenna 700 are respectively cellular network antennas;

[0102] The uplink frequency band includes 1980 MHz to 2010 MHz, the downlink frequency band includes 2170 MHz to 2200 MHz, the second frequency band includes 704 MHz to 960 MHz, and the third frequency band includes 1710 MHz to 2690 MHz.

[0103] In this embodiment, by making the first antenna 500 a satellite antenna and the second antenna 600 and the third antenna 700 be cellular network antennas respectively, in this way, the integration of the satellite antenna into the existing cellular network antennas of the electronic device can be realized, so as to realize the multiplexing of antenna branches, which is beneficial to saving the antenna space required for the antennas.

[0104] Optionally, the side length of the first frame 110 is less than the side length of the second frame 120.

[0105] In this embodiment, the side length of the first border 110 being less than that of the second border 120 specifically may mean that: the first border 110 is the top border of the electronic device, and the second border 120 is the side border of the electronic device. With such a setting, the layout of the border antenna in the electronic device can be optimized.

[0106] It should be noted that the above-mentioned antenna-related solutions in the embodiments of the present application are not limited to the frequency bands, sizes, antenna types, polarization modes, etc. listed in the specific embodiments. For example, the above-mentioned antenna frequency bands may further include 4G, 5G, and millimeter wave frequency bands, etc. The above-mentioned antenna types may further include loop antennas, slot antennas, etc. The above-mentioned polarization forms may also be vertical polarization and horizontal polarization, etc. Modifying matching network parameters, antenna sizes, antenna types, filter types, etc. can be applicable to other frequency bands. Any solutions and technical deformations made according to the technical solutions of the present application fall within the protection scope of the present application.

[0107] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. An electronic device, characterized in that: A first feed source comprising a frame and a first antenna, wherein the frame comprises a first frame, and the first frame comprises a radiation ring and a parasitic radiator; The radiation ring is in a rectangular ring shape, and includes: a first bending portion and a second bending portion arranged at an angle; the length direction of the radiation ring is the same as the length direction of the first frame, and there is a gap between the parasitic radiator and the first bending portion, and the parasitic radiator is coupled to the radiation ring through the gap; The radiation loop includes a first feeding point, the first feed source is electrically connected to the first feeding point, wherein the radiation loop is a radiator of the first antenna, the parasitic radiator is a parasitic branch of the radiation loop, the working frequency band of the first antenna is a first frequency band, and the first frequency band includes an uplink frequency band and a downlink frequency band; When the first antenna is in a working state, the radiation loop has a first radiation mode and a second radiation mode, the parasitic radiator has a third radiation mode, the first radiation mode and the third radiation mode are respectively orthogonal to the second radiation mode, and the circular polarization frequency band generated by the first radiation mode and the second radiation mode includes the uplink frequency band, and the circular polarization frequency band generated by the second radiation mode and the third radiation mode includes the downlink frequency band.

2. The electronic device according to claim 1, characterized in that: The frequency of the second radiation mode is between the frequency of the first radiation mode and the frequency of the third radiation mode; The first radiation mode is a 1-times-wavelength dipole mode, the second radiation mode is a 1-times-wavelength mode, and the third radiation mode is a 0.5-times-wavelength mode.

3. The electronic device according to claim 1, characterized in that: The radiation ring includes a first side, the first feeding point is located on the first side, and a distance between the first feeding point and a current zero point in the first side is greater than or equal to 5 mm.

4. The electronic device according to claim 3, characterized in that: The radiation ring also includes a first vertex, a second vertex and a second side, the first vertex and the second vertex are vertices corresponding to two diagonals of the radiation ring, the first side and the second side are two sides in the length direction of the radiation ring, the current zero point corresponding to the first radiation mode includes the first vertex and the second vertex, and the current zero point corresponding to the second radiation mode includes the midpoint of the first side and the midpoint of the second side.

5. The electronic device according to claim 1, characterized in that: The radiation ring includes a third side, the third side is an side in the width direction of the radiation ring, the length direction of the parasitic radiator is the same as the length direction of the radiation ring, and one end of the parasitic radiator is opposite to the third side, and the end of the parasitic radiator opposite to the third side is coupled to the third side.

6. The electronic device according to claim 1, characterized in that: The electronic device further includes a first insulating substrate, the first insulating substrate is in a strip shape, and the length direction of the first insulating substrate is the same as the length direction of the first frame, and the first insulating substrate includes a first side surface and a second side surface adjacent to each other; The first bending portion is located on the first side surface, and the second bending portion is located on the second side surface.

7. The electronic device according to claim 6, characterized in that: The electronic device further includes a second insulating substrate, which is located on the first side surface, and the parasitic radiator is located on a surface of the second insulating substrate that is opposite to the first side surface.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device further includes a second frame, a second feed source and a first filter, the first frame and the second frame are two adjacent frames of the frame body, and the second frame includes a second conductive segment; The second conductive segment includes a second feeding point, the second feed source is electrically connected to the second feeding point, and the second conductive segment is electrically connected to the radiation loop through the first filter, wherein the second feed source is a feed source for a second antenna, and the second antenna includes the second conductive segment, the first filter and the radiation loop.

9. The electronic device according to claim 8, characterized in that: The operating frequency band of the second antenna is a second frequency band, the passband of the first filter includes the second frequency band, and the stopband of the first filter includes the first frequency band.

10. The electronic device according to claim 8, characterized in that: The second frame further includes a third conductive segment, the electronic device further includes a third feed source and a second filter, the third conductive segment is located on a side of the second conductive segment away from the first frame, and a second break is provided between the second conductive segment and the third conductive segment, the third conductive segment includes a third feeding point, and the third feed source is electrically connected to the third feeding point; The second conductive segment includes a first connection point, the first connection point is located between the second feeding point and a first end of the second conductive segment, the first end is an end of the second conductive segment facing the second break, and the first connection point is grounded through the second filter; The third feed source is a feed source of a third antenna, and the third antenna includes: the third conductive segment, and a region of the second conductive segment located between the first connection point and the first end.

11. The electronic device according to claim 10, characterized in that: The working frequency band of the second antenna is the second frequency band, the working frequency band of the third antenna is the third frequency band, the passband of the second filter includes the third frequency band, and the stopband of the second filter includes the second frequency band.

12. The electronic device according to claim 10, characterized in that: The working frequency band of the second antenna is the second frequency band, the working frequency band of the third antenna is the third frequency band, the first antenna is a satellite antenna, and the second antenna and the third antenna are cellular network antennas respectively; The uplink frequency band includes 1980MHz to 2010MHz, the downlink frequency band includes 2170MHz to 2200MHz, the second frequency band includes 704MHz to 960MHz, and the third frequency band includes 1710MHz to 2690MHz.

13. The electronic device according to claim 8, characterized in that: The side length of the first frame is smaller than the side length of the second frame.

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