Antenna structure and wearable electronic equipment

Abstract

The invention is suitable for the technical field of antennas, and provides an antenna structure and wearable electronic equipment. The antenna structure comprises an annular radiator, the annular radiator is provided with a feeding point, a first grounding point and a second grounding point, the feeding point is used for being electrically connected with a position determining element, and the first grounding point and the second grounding point are respectively used for being grounded; the first frequency band antenna is configured to receive a first satellite positioning signal of a first frequency, and the first frequency band antenna comprises a radiator between a feeding point and a first grounding point; the second band antenna is configured to receive a second satellite positioning signal of a second frequency, the second band antenna including a radiator between the first ground point and the second ground point. According to the antenna structure provided by the embodiment of the invention, on the premise of improving the right-handed rotation gain of the antenna structure towards the sky, the feeding point is arranged at the position except 2-4 points of the smart watch, so that the clearance space of the feeding point can be effectively ensured, and the manufacturing difficulty of the antenna structure and the wearable electronic equipment is reduced.

Description

Technical Field

[0001] The present application belongs to the field of antenna technology, and in particular relates to an antenna structure and a wearable electronic device. Background Art

[0002] Wearable electronic devices are electronic devices worn on the human body. Wearable devices, especially smart watches, are usually used for activities such as walking, running, off-roading, cycling, rock climbing and mountain climbing. Wearable electronic devices usually include an antenna, a position determination element and a screen. The antenna receives one or more position signals, such as a Global Navigation Satellite System (GNSS) position signal, and transmits the received position signal to the position determination element, which processes the position signal to determine the geographic location of the electronic device. The screen can display information on a user interface presented to the user, such as the determined geographic location on a map. In actual usage scenarios, wearable electronic devices need to have good performance in receiving satellite signals to achieve accurate positioning.

[0003] In the prior art, smart watches generally use the metal ring on them as a radiator, and the radiator has a feeding point and two grounding points on both sides of the feeding point. The parts of the radiator located between the feeding point and the two grounding points are used to receive signals in the L1 (frequency band of 1.6GHZ) and L5 (frequency band of 1.2GHZ) frequency bands respectively. However, the above technical solution has the following problems: In order to ensure the right-handed gain of the L1 and L5 frequency bands toward the sky, the best layout point of the feeding point should be at the 2-4 o'clock position of the smart watch, and this position is generally the position of the watch button module. The clearance space of the feeding point cannot be effectively guaranteed, and the actual engineering implementation is difficult. Summary of the invention

[0004] The embodiments of the present application provide an antenna structure and a wearable electronic device, which can solve the technical problem in the prior art that the antenna structure and the wearable electronic device are difficult to manufacture, because the parts of the radiator located between the feeding point and the two grounding points are used to receive signals in the L1 frequency band and the L5 frequency band.

[0005] In a first aspect, an embodiment of the present application provides an antenna structure, including an annular radiator, on which a feeding point, a first grounding point, and a second grounding point are provided, wherein the feeding point is used to be electrically connected to a position determination element, and the first grounding point and the second grounding point are used to be grounded respectively;

[0006] A first frequency band antenna, configured to receive a first satellite positioning signal of a first frequency, the first frequency band antenna comprising a radiator between the feed point and the first ground point;

[0007] The second frequency band antenna is configured to receive a second satellite positioning signal of a second frequency, and the second frequency band antenna includes a radiator between the first ground point and the second ground point.

[0008] In a possible implementation manner of the first aspect, the feeding point, the first grounding point, and the second grounding point are sequentially spaced apart in a counterclockwise direction along the circumference of the annular radiator.

[0009] In a possible implementation manner of the first aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band.

[0010] In a possible implementation manner of the first aspect, the second frequency band antenna is further used to receive WIFI / BT signals.

[0011] In a possible implementation manner of the first aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band.

[0012] In a possible implementation manner of the first aspect, the first frequency band antenna is further used to receive WIFI / BT signals.

[0013] In a possible implementation manner of the first aspect, the feeding point, the first grounding point, and the second grounding point are arranged in sequence and spaced apart in a clockwise direction along the circumference of the annular radiator.

[0014] In a possible implementation manner of the first aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band.

[0015] In a possible implementation manner of the first aspect, the second frequency band antenna is further used to receive WIFI / BT signals.

[0016] In a possible implementation manner of the first aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band.

[0017] In a possible implementation manner of the first aspect, the first frequency band antenna is further used to receive WIFI / BT signals.

[0018] In a possible implementation manner of the first aspect, a third grounding point is further provided on the annular radiator, the third grounding point is close to the feeding point, and the third grounding point is used for grounding.

[0019] In a possible implementation manner of the first aspect, the annular radiator is at least partially made of a conductive material.

[0020] In a possible implementation manner of the first aspect, the antenna structure further includes a first frequency tuning element, which is selectively electrically connected to the first frequency band antenna and is configured to adjust the resonant frequency of the first frequency band antenna.

[0021] In a possible implementation manner of the first aspect, the antenna structure further includes a second frequency tuning element, where the second frequency tuning element is selectively electrically connected to the second frequency band antenna and is configured to adjust the resonant frequency of the second frequency band antenna.

[0022] In a second aspect, an embodiment of the present application provides an antenna structure, including an annular radiator, on which a feeding point, a first grounding point, and a second grounding point are provided, wherein the feeding point is used to be electrically connected to a position determination element, and the first grounding point and the second grounding point are used to be grounded respectively;

[0023] A first frequency band antenna, configured to receive a first satellite positioning signal of a first frequency, the first frequency band antenna comprising a first radiator between the feed point and the first ground point, the first radiator being electrically coupled to the feed point;

[0024] The second frequency band antenna is configured to receive a second satellite positioning signal of a second frequency, wherein the second frequency band antenna comprises a second radiator between the first ground point and the second ground point, and the second radiator is electrically coupled to the feeding point.

[0025] In a possible implementation manner of the second aspect, the feeding point, the first grounding point, and the second grounding point are sequentially spaced apart in a counterclockwise direction along the circumference of the annular radiator.

[0026] In a possible implementation manner of the second aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band.

[0027] In a possible implementation manner of the second aspect, the second frequency band antenna is further used to receive WIFI / BT signals.

[0028] In a possible implementation manner of the second aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band.

[0029] In a possible implementation manner of the second aspect, the first frequency band antenna is further used to receive WIFI / BT signals.

[0030] In a possible implementation manner of the second aspect, the feeding point, the first grounding point, and the second grounding point are sequentially spaced apart in a clockwise direction along the circumference of the annular radiator.

[0031] In a possible implementation manner of the second aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band.

[0032] In a possible implementation manner of the second aspect, the second frequency band antenna is further used to receive WIFI / BT signals.

[0033] In a possible implementation manner of the second aspect, an equivalent length of the first frequency band antenna is 1 / 2 of a wavelength of an L5 frequency band, and an equivalent length of the second frequency band antenna is 1 / 2 of a wavelength of an L1 frequency band.

[0034] In a possible implementation manner of the second aspect, the first frequency band antenna is further used to receive WIFI / BT signals.

[0035] In a possible implementation manner of the second aspect, a third grounding point is further provided on the annular radiator, the third grounding point is close to the feeding point, and the third grounding point is used for grounding.

[0036] In a possible implementation manner of the second aspect, the annular radiator is at least partially made of a conductive material.

[0037] In a possible implementation manner of the second aspect, the antenna structure further includes a first frequency tuning element, which is selectively electrically connected to the first frequency band antenna and is configured to adjust the resonant frequency of the first frequency band antenna.

[0038] In a possible implementation manner of the second aspect, the antenna structure further includes a second frequency tuning element, where the second frequency tuning element is selectively electrically connected to the second frequency band antenna and is configured to adjust the resonant frequency of the second frequency band antenna.

[0039] In a third aspect, an embodiment of the present application provides a wearable electronic device, comprising a housing, a position determination element, and the antenna structure as described in any one of the first aspect or the second aspect, wherein the housing comprises a bottom wall and a side wall connected to the bottom wall, and the antenna structure is arranged on the side wall;

[0040] The position determination element is electrically coupled to the first frequency band antenna and the second frequency band antenna respectively, and is configured to receive the first satellite positioning signal and the second satellite positioning signal, and determine the current geographic location according to the first satellite positioning signal and the second satellite positioning signal.

[0041] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0042] The antenna structure provided in the embodiment of the present application includes a ring radiator, and a feeding point, a first grounding point and a second grounding point are provided on the ring radiator. The feeding point is used to be electrically connected to the position determination element, and the first grounding point and the second grounding point are used for grounding respectively. The feeding point, the first grounding point and the second grounding point can form the ring radiator into a first frequency band antenna and a second frequency band antenna. The first frequency band antenna includes a radiator between the feeding point and the first grounding point, and the second frequency band antenna includes a radiator between the first grounding point and the second grounding point. The first frequency band antenna can receive a first satellite positioning signal of a first frequency, and the second frequency band antenna can receive a second satellite positioning signal of a second frequency. Therefore, the feeding point can be set at a position other than 2-4 points of the smart watch on the premise of improving the right-hand gain of the antenna structure in the direction toward the sky, so that the clearance space of the feeding point can be effectively guaranteed, and the difficulty of manufacturing the antenna structure and the wearable electronic device can be reduced.

[0043] It can be understood that the beneficial effects of the second and third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1 is a schematic diagram of an antenna structure provided by an embodiment of the present application;

[0046] Figure 2 yes Figure 1 The gain diagram of the antenna structure shown receiving L5 frequency band signals;

[0047] Figure 3 yes Figure 1 The gain diagram of the antenna structure shown receiving L1 frequency band signals;

[0048] Figure 4 yes Figure 1 Axial ratio diagram of the antenna structure shown;

[0049] Figure 5 is a schematic diagram of an antenna structure provided by another embodiment of the present application;

[0050] Figure 6 yes Figure 5The gain diagram of the antenna structure shown receiving L5 frequency band signals;

[0051] Figure 7 yes Figure 5 The gain diagram of the antenna structure shown receiving L1 frequency band signals;

[0052] Figure 8 is a schematic diagram of an antenna structure provided by another embodiment of the present application;

[0053] Fig. 9 yes Figure 8 The gain diagram of the antenna structure shown receiving L5 frequency band signals;

[0054] Fig.10 yes Figure 8 The gain diagram of the antenna structure shown receiving L1 frequency band signals;

[0055] Fig.11 is a schematic diagram of an antenna structure provided by another embodiment of the present application;

[0056] Fig.12 yes Fig.11 The gain diagram of the antenna structure shown receiving L5 frequency band signals;

[0057] Fig.13 yes Fig.11 The gain diagram of the antenna structure shown receiving L1 frequency band signals;

[0058] Fig.14 is a schematic diagram of an antenna structure provided by another embodiment of the present application;

[0059] Fig.15 is a schematic diagram of an antenna structure provided by another embodiment of the present application;

[0060] Fig.16 is a schematic diagram of a wearable electronic device provided by an embodiment of the present application;

[0061] Fig.17 is a schematic diagram of a wearable electronic device provided in yet another embodiment of the present application.

[0062] In the figure: 100, annular radiator; 101, first frequency band antenna; 102, second frequency band antenna; 200, housing. DETAILED DESCRIPTION

[0063] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0064] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0065] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0066] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0067] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0068] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0069] The antenna structure on a traditional smartwatch includes two antennas, which share a feeding point, that is, the two antennas are distributed on both sides of the feeding point, one antenna is used to receive the positioning signal of the L1 band (1.6GHZ), and the other antenna is used to receive the signal of the L5 (1.2GHZ) band. In order to ensure the right-hand gain of the antenna structure receiving the L1 band signal and the L5 band signal toward the sky, the feeding point needs to be set at the 2-4 o'clock position on the smartwatch, and the 2-4 o'clock position of the smartwatch is the position of the button module, resulting in the inability to effectively guarantee the clearance space of the feeding point.

[0070] Based on the above problems, the present application embodiment provides an antenna structure, see Figure 1 As shown, the antenna structure includes a ring radiator 100, on which a feeding point F, a first grounding point G1 and a second grounding point G2 are provided. The feeding point F is used to be electrically connected to the position determination element, and the first grounding point G1 and the second grounding point G2 are used for grounding respectively. The first frequency band antenna 101 is configured to receive a first satellite positioning signal of a first frequency, and the first frequency band antenna 101 includes a radiator between the feeding point F and the first grounding point G1. The second frequency band antenna 102 is configured to receive a second satellite positioning signal of a second frequency, and the second frequency band antenna 102 includes a radiator between the first grounding point G1 and the second grounding point G2.

[0071] Specifically, a feeding point F, a first grounding point G1, and a second grounding point G2 are arranged on the annular radiator 100, so that the annular radiator 100 forms a first frequency band antenna 101 and a second frequency band antenna 102. The first frequency band antenna 101 includes a radiator between the feeding point F and the first grounding point G1, and the second frequency band antenna 102 includes a radiator between the first grounding point G1 and the second grounding point G2. The first frequency band antenna 101 can receive a first satellite positioning signal of a first frequency. In addition, the half-wave slot mode of the radiator between the first grounding point G1 and the second grounding point G2 is excited by the feeding point F and the traveling wave mode of the radiator between the feeding point F and the first grounding point G1, so that the second frequency band antenna 102 can receive a second satellite positioning signal of a second frequency. Therefore, the first frequency band antenna 101 in the antenna structure provided in the embodiment of the present application can receive a first satellite positioning signal of a first frequency, and the second frequency band antenna 102 can receive a second satellite positioning signal of a second frequency, so that the feeding point F can be set at a position other than points 2-4 of the smart watch on the premise of improving the right-hand gain of the antenna structure facing the sky. This can effectively ensure the clearance space of the feeding point F and reduce the difficulty of manufacturing the antenna structure and the wearable electronic device.

[0072] It should be noted that the designer can set the specific positions of the feeding point F, the first grounding point G1 and the second grounding point G2 according to actual conditions. The designer can also design the equivalent lengths of the first frequency band antenna 101 and the second frequency band antenna 102 according to actual conditions, so that the first frequency band antenna 101 can receive the first satellite positioning signal of the first frequency, and the second frequency band antenna 102 can receive the second satellite positioning signal of the second frequency.

[0073] In some embodiments, Figure 1As shown, the feed point F, the first ground point G1 and the second ground point G2 are sequentially arranged in a counterclockwise direction along the circumference of the annular radiator 100. The equivalent length of the first frequency band antenna 101 is 1 / 2 of the wavelength of the L1 frequency band, and the equivalent length of the second frequency band antenna 102 is 1 / 2 of the wavelength of the L5 frequency band.

[0074] Specifically, the equivalent length of the first frequency band antenna 101 is set to 1 / 2 of the wavelength of the L1 frequency band, so that the first frequency band antenna 101 can receive the signal of the L1 frequency band (1.6 GHZ). The equivalent length of the second frequency band antenna 102 is set to 1 / 2 of the wavelength of the L5 frequency band, so that the second frequency band antenna 102 can receive the signal of the L5 frequency band (1.2 GHZ).

[0075] Figure 1 The antenna structure shown sets the feeding point F at the 5 o'clock position on the ring radiator 100. Figure 2 As shown, when the antenna structure receives L5 frequency band signals, it has good right-hand gain at 0°-60° and 180°-240°. Figure 2 The thick line part represents the right-hand gain of the antenna structure, and the thin line part represents the left-hand gain of the antenna structure. Figure 3 As shown, when the antenna structure receives L1 frequency band signals, it has good right-hand gain at 0°-120° and 210°-360°. Figure 3 The thick line portion represents the right-handed gain of the antenna structure, and the thin line portion represents the left-handed gain of the antenna structure.

[0076] like Figure 4 As shown, the antenna structure sets the feeding point F at the 5 o'clock position on the annular radiator 100. The axial ratio of the antenna structure is about 7dB at 1.2GHZ, and the axial ratio of the antenna structure is about 4dB at 1.6GHZ. The axial ratio characteristics of the antenna structure at 1.2GHZ and 1.6GHZ are better, and the antenna structure can well receive L1 band signals and L5 band signals.

[0077] Based on the frequency doubling principle, the second frequency band antenna 102 can also receive 2.4 GHZ signals, and at this time the second frequency band antenna 102 can receive WIFI / BT signals (WIFI signals or Bluetooth signals). Therefore, the antenna structure provided in the embodiment of the present application can receive L1 frequency band signals, L5 frequency band signals and WIFI / BT signals.

[0078] In some embodiments, Figure 5 As shown, the equivalent length of the first frequency band antenna 101 can also be set to 1 / 2 of the wavelength of the L5 frequency band, and the equivalent length of the second frequency band antenna 102 can be set to 1 / 2 of the wavelength of the L1 frequency band.

[0079] Specifically, the equivalent length of the first frequency band antenna 101 is set to 1 / 2 of the wavelength of the L5 frequency band, so that the first frequency band antenna 101 can receive the signal of the L5 frequency band. The equivalent length of the second frequency band antenna 102 is set to 1 / 2 of the wavelength of the L1 frequency band, so that the second frequency band antenna 102 can receive the signal of the L1 frequency band.

[0080] Figure 5 The antenna structure shown sets the feeding point F at the 6 o'clock position on the ring radiator 100. Figure 6 As shown, when the antenna structure receives L5 frequency band signals, it has good right-hand gain at 0°-60° and 180°-240°. Figure 6 The thick line part represents the right-hand gain of the antenna structure, and the thin line part represents the left-hand gain of the antenna structure. Figure 7 As shown, when the antenna structure receives L1 frequency band signals, it has good right-hand gain at 0°-120° and 210°-360°. Figure 7 The thick line portion represents the right-handed gain of the antenna structure, and the thin line portion represents the left-handed gain of the antenna structure.

[0081] Based on the frequency doubling principle, the first frequency band antenna 101 can also receive the frequency doubling signal of L5. Since L5 is a 1.2 GHZ signal, the first frequency band antenna 101 can also receive a 2.4 GHZ signal, that is, the first frequency band antenna 101 can receive a WIFI / BT signal (WIFI signal or Bluetooth signal). Therefore, the antenna structure provided in the embodiment of the present application can receive L1 frequency band signals, L5 frequency band signals, and WIFI / BT signals.

[0082] In some embodiments, Figure 8 As shown, the feeding point F, the first grounding point G1 and the second grounding point G2 are sequentially arranged in a clockwise direction along the circumference of the annular radiator 100. The equivalent length of the first frequency band antenna 101 can be set to 1 / 2 of the wavelength of the L1 frequency band, and the equivalent length of the second frequency band antenna 102 can be set to 1 / 2 of the wavelength of the L5 frequency band.

[0083] Specifically, the equivalent length of the first frequency band antenna 101 is set to 1 / 2 of the wavelength of the L1 frequency band, so that the first frequency band antenna 101 can receive the signal of the L1 frequency band (1.6 GHZ). The equivalent length of the second frequency band antenna 102 is set to 1 / 2 of the wavelength of the L5 frequency band, so that the second frequency band antenna 102 can receive the signal of the L5 frequency band (1.2 GHZ).

[0084] Figure 8 The antenna structure shown sets the feeding point F at the 9 o'clock position on the annular radiator 100. Fig. 9 As shown, when the antenna structure receives L5 frequency band signals, it has good right-hand gain at 0°-90° and 210°-300°. Fig. 9 The thick line part represents the right-hand gain of the antenna structure, and the thin line part represents the left-hand gain of the antenna structure. Fig.10 As shown, when the antenna structure receives L1 frequency band signals, it has good right-hand gain at 0°-50° and 190°-310°. Fig.10 The thick line portion represents the right-handed gain of the antenna structure, and the thin line portion represents the left-handed gain of the antenna structure.

[0085] Based on the frequency doubling principle, the second frequency band antenna 102 can also receive 2.4 GHZ signals, and at this time the second frequency band antenna 102 can receive WIFI / BT signals (WIFI signals or Bluetooth signals). Therefore, the antenna structure provided in the embodiment of the present application can receive L1 frequency band signals, L5 frequency band signals and WIFI / BT signals.

[0086] In some embodiments, Fig.11 As shown, the equivalent length of the first frequency band antenna 101 can also be set to 1 / 2 of the wavelength of the L5 frequency band, and the equivalent length of the second frequency band antenna 102 can be set to 1 / 2 of the wavelength of the L1 frequency band.

[0087] Specifically, the equivalent length of the first frequency band antenna 101 is set to 1 / 2 of the wavelength of the L5 frequency band, so that the first frequency band antenna 101 can receive the signal of the L5 frequency band. The equivalent length of the second frequency band antenna 102 is set to 1 / 2 of the wavelength of the L1 frequency band, so that the second frequency band antenna 102 can receive the signal of the L1 frequency band.

[0088] Fig.11 The antenna structure shown sets the feeding point F at the 9 o'clock position on the annular radiator 100. Fig.12 As shown, when the antenna structure receives L5 frequency band signals, it has good right-hand gain at 0°-110°, 220°-300°, and 330°-360°. Fig.12 The thick line part represents the right-hand gain of the antenna structure, and the thin line part represents the left-hand gain of the antenna structure. Fig.13 As shown, when the antenna structure receives L1 frequency band signals, it has good right-hand gain at 0°-50°, 180°-320°, and 330°-360°. Fig.13 The thick line portion represents the right-handed gain of the antenna structure, and the thin line portion represents the left-handed gain of the antenna structure.

[0089] Based on the frequency doubling principle, the first frequency band antenna 101 can also receive the frequency doubling signal of L5. Since L5 is a 1.2 GHZ signal, the first frequency band antenna 101 can also receive a 2.4 GHZ signal, that is, the first frequency band antenna 101 can receive a WIFI / BT signal (WIFI signal or Bluetooth signal). Therefore, the antenna structure provided in the embodiment of the present application can receive L1 frequency band signals, L5 frequency band signals, and WIFI / BT signals.

[0090] In some embodiments, Fig.14 As shown, a third grounding point G3 is also provided on the annular radiator 100, and the third grounding point G3 is close to the feeding point F, and the third grounding point G3 is used for grounding. The third grounding point G3 is used to improve the impedance matching at the feeding point F position.

[0091] In some embodiments, the ring radiator 100 is at least partially composed of a conductive material.

[0092] Specifically, the designer may design the ring radiator 100 as a complete circular ring radiator (eg Figure 1 , Figure 5 , Figure 8 , Fig.11 and Fig.14 as shown), or it can be designed as part of a complete ring radiator (e.g. Fig.15 As shown), it is necessary to ensure that the radiator between the feeding point F and the first grounding point G1 and the radiator between the first grounding point G1 and the second grounding point G2 are made of conductive materials. If a third grounding point G3 is set on the annular radiator 100, it is necessary to ensure that the radiator between the feeding point F and the third grounding point G3 is made of conductive materials. The conductive material can be metal, metal alloy or other conductive materials.

[0093] In one embodiment of the present application, the antenna structure further includes a first frequency tuning element, which is selectively electrically connected to the first frequency band antenna 101 and configured to adjust the resonant frequency of the first frequency band antenna 101. The antenna structure further includes a second frequency tuning element, which is selectively electrically connected to the second frequency band antenna 102 and configured to adjust the resonant frequency of the second frequency band antenna 102.

[0094] Specifically, the first frequency tuning element is used to adjust the resonant frequency of the first frequency band antenna 101 so that the first frequency band antenna 101 can receive a signal of the first frequency. The second frequency tuning element is used to adjust the resonant frequency of the second frequency band antenna 102 so that the second frequency band antenna 102 can receive a signal of the second frequency.

[0095] Figure 1-Figure 15As shown, the present application also discloses an antenna structure, which includes a ring radiator 100, on which a feeding point F, a first grounding point G1 and a second grounding point G2 are provided, the feeding point F is used to be electrically connected to the position determination element, and the first grounding point G1 and the second grounding point G2 are used for grounding respectively. The first frequency band antenna 101 is configured to receive a first satellite positioning signal of a first frequency, the first frequency band antenna 101 includes a first radiator between the feeding point F and the first grounding point G1, and the first radiator is electrically coupled to the feeding point F. The second frequency band antenna 102 is configured to receive a second satellite positioning signal of a second frequency, the second frequency band antenna 102 includes a second radiator between the first grounding point G1 and the second grounding point G2, and the second radiator is electrically coupled to the feeding point F.

[0096] Specifically, a feeding point F, a first grounding point G1, and a second grounding point G2 are arranged on the annular radiator 100, so that the annular radiator 100 forms a first frequency band antenna 101 and a second frequency band antenna 102. The first frequency band antenna 101 includes a radiator between the feeding point F and the first grounding point G1, and the second frequency band antenna 102 includes a radiator between the first grounding point G1 and the second grounding point G2. The first frequency band antenna 101 can receive a first satellite positioning signal of a first frequency. In addition, the half-wave slot mode of the radiator between the first grounding point G1 and the second grounding point G2 is excited by the feeding point F and the traveling wave mode of the radiator between the feeding point F and the first grounding point G1, so that the second frequency band antenna 102 can receive a second satellite positioning signal of a second frequency. Because the first frequency band antenna 101 includes a first radiator between the feeding point F and the first grounding point G1, the first radiator is electrically coupled to the feeding point F, and the second frequency band antenna 102 includes a second radiator between the first grounding point G1 and the second grounding point G2, and the second radiator is electrically coupled to the feeding point F. The first satellite positioning signal of the first frequency received by the first frequency band antenna 101 can be transmitted to the position determination element through the feeding point F, and the second satellite positioning signal of the second frequency received by the second frequency band antenna 102 can be transmitted to the position determination element through the feeding point F. Therefore, the first frequency band antenna 101 in the antenna structure provided in the embodiment of the present application can receive the first satellite positioning signal of the first frequency, and the second frequency band antenna 102 can receive the second satellite positioning signal of the second frequency, so that the feeding point F can be set at a position other than 2-4 points of the smart watch under the premise of improving the right-hand gain of the antenna structure facing the sky, so that the clearance space of the feeding point F can be effectively guaranteed, and the difficulty of manufacturing the antenna structure and the wearable electronic device can be reduced.

[0097] It should be noted that the designer can set the specific positions of the feeding point F, the first grounding point G1 and the second grounding point G2 according to actual conditions. The designer can also design the equivalent lengths of the first frequency band antenna 101 and the second frequency band antenna 102 according to actual conditions, so that the first frequency band antenna 101 can receive the first satellite positioning signal of the first frequency, and the second frequency band antenna 102 can receive the second satellite positioning signal of the second frequency.

[0098] The present application discloses a wearable electronic device, such as Fig.16 and Fig.17 As shown, the wearable electronic device includes a housing 200, a position determining element and the antenna structure described above, the housing 200 includes a bottom wall and a side wall connected to the bottom wall, and the antenna structure is arranged on the side wall.

[0099] Specifically, the annular radiator can be arranged on the upper edge of the side wall, or on the inner wall of the side wall. A feeding point F, a first grounding point G1, and a second grounding point G2 are arranged on the annular radiator. The feeding point F is used to be electrically connected to the position determination element, and the first grounding point G1 and the second grounding point G2 are used for grounding respectively. The first frequency band antenna 101 is configured to receive a first satellite positioning signal of a first frequency, and the first frequency band antenna 101 includes a radiator between the feeding point F and the first grounding point G1. The second frequency band antenna 102 is configured to receive a second satellite positioning signal of a second frequency, and the second frequency band antenna 102 includes a radiator between the first grounding point G1 and the second grounding point G2.

[0100] A feeding point F, a first grounding point G1 and a second grounding point G2 are arranged on the annular radiator 100, so that the annular radiator 100 forms a first frequency band antenna 101 and a second frequency band antenna 102. The first frequency band antenna 101 includes a radiator between the feeding point F and the first grounding point G1, and the second frequency band antenna 102 includes a radiator between the first grounding point G1 and the second grounding point G2. The first frequency band antenna 101 can receive a first satellite positioning signal of a first frequency. In addition, the half-wave slot mode of the radiator between the first grounding point G1 and the second grounding point G2 is excited by the feeding point F and the traveling wave mode of the radiator between the feeding point F and the first grounding point G1, so that the second frequency band antenna 102 can receive a second satellite positioning signal of a second frequency. Therefore, the first frequency band antenna 101 in the antenna structure provided in the embodiment of the present application can receive a first satellite positioning signal of a first frequency, and the second frequency band antenna 102 can receive a second satellite positioning signal of a second frequency, so that the feeding point F can be set at a position other than points 2-4 of the smart watch while improving the right-hand gain of the antenna structure. This can effectively ensure the clearance space of the feeding point F and reduce the difficulty of manufacturing the antenna structure and the wearable electronic device.

[0101] The position determination element is electrically coupled to the first frequency band antenna 101 and the second frequency band antenna 102 respectively, and is configured to receive the first satellite positioning signal and the second satellite positioning signal, and determine the current geographical location according to the first satellite positioning signal and the second satellite positioning signal to achieve the positioning function.

[0102] It should be noted that the wearable electronic device disclosed in this application may be a watch, a bracelet, or other wearable devices with a positioning function.

[0103] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An antenna structure, characterized in that: It comprises an annular radiator, on which a feeding point, a first grounding point and a second grounding point are arranged, the feeding point is used to be electrically connected to the position determination element, and the first grounding point and the second grounding point are used for grounding respectively; A first frequency band antenna, configured to receive a first satellite positioning signal of a first frequency, the first frequency band antenna comprising a radiator between the feed point and the first ground point; The second frequency band antenna is configured to receive a second satellite positioning signal of a second frequency, and the second frequency band antenna includes a radiator between the first ground point and the second ground point.

2. The antenna structure according to claim 1, characterized in that: The feeding point, the first grounding point and the second grounding point are sequentially arranged in a counterclockwise direction along the circumference of the annular radiator.

3. The antenna structure according to claim 2, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band.

4. The antenna structure according to claim 3, characterized in that: The second frequency band antenna is also used to receive WIFI / BT signals.

5. The antenna structure according to claim 2, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band.

6. The antenna structure according to claim 5, characterized in that: The first frequency band antenna is also used to receive WIFI / BT signals.

7. The antenna structure according to claim 1, characterized in that: The feeding point, the first grounding point and the second grounding point are sequentially spaced apart in a clockwise direction along the circumference of the annular radiator.

8. The antenna structure according to claim 7, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band.

9. The antenna structure according to claim 8, characterized in that: The second frequency band antenna is also used to receive WIFI / BT signals.

10. The antenna structure according to claim 7, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band.

11. The antenna structure according to claim 10, characterized in that: The first frequency band antenna is also used to receive WIFI / BT signals.

12. The antenna structure according to any one of claims 1 to 11, characterized in that: A third grounding point is also arranged on the annular radiator. The third grounding point is close to the feeding point and is used for grounding.

13. The antenna structure according to any one of claims 1 to 11, characterized in that: The ring radiator is at least partially made of conductive material.

14. The antenna structure according to any one of claims 1 to 11, characterized in that: The antenna structure further includes a first frequency tuning element, which is selectively electrically connected to the first frequency band antenna and is configured to adjust the resonant frequency of the first frequency band antenna.

15. The antenna structure according to claim 14, characterized in that: The antenna structure further includes a second frequency tuning element, which is selectively electrically connected to the second frequency band antenna and is configured to adjust the resonant frequency of the second frequency band antenna.

16. An antenna structure, characterized in that: It comprises an annular radiator, on which a feeding point, a first grounding point and a second grounding point are arranged, the feeding point is used to be electrically connected to the position determination element, and the first grounding point and the second grounding point are used for grounding respectively; A first frequency band antenna, configured to receive a first satellite positioning signal of a first frequency, the first frequency band antenna comprising a first radiator between the feed point and the first ground point, the first radiator being electrically coupled to the feed point; The second frequency band antenna is configured to receive a second satellite positioning signal of a second frequency, wherein the second frequency band antenna comprises a second radiator between the first ground point and the second ground point, and the second radiator is electrically coupled to the feeding point.

17. The antenna structure according to claim 16, characterized in that: The feeding point, the first grounding point and the second grounding point are sequentially arranged in a counterclockwise direction along the circumference of the annular radiator.

18. The antenna structure according to claim 17, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band.

19. The antenna structure according to claim 18, characterized in that: The second frequency band antenna is also used to receive WIFI / BT signals.

20. The antenna structure according to claim 17, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band.

21. The antenna structure according to claim 20, characterized in that: The first frequency band antenna is also used to receive WIFI / BT signals.

22. The antenna structure according to claim 16, characterized in that: The feeding point, the first grounding point and the second grounding point are sequentially spaced apart in a clockwise direction along the circumference of the annular radiator.

23. The antenna structure according to claim 22, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band.

24. The antenna structure according to claim 23, characterized in that: The second frequency band antenna is also used to receive WIFI / BT signals.

25. The antenna structure according to claim 22, characterized in that: The equivalent length of the first frequency band antenna is 1 / 2 of the wavelength of the L5 frequency band, and the equivalent length of the second frequency band antenna is 1 / 2 of the wavelength of the L1 frequency band.

26. The antenna structure according to claim 25, characterized in that: The first frequency band antenna is also used to receive WIFI / BT signals.

27. The antenna structure according to any one of claims 16 to 26, characterized in that: A third grounding point is also arranged on the annular radiator. The third grounding point is close to the feeding point and is used for grounding.

28. The antenna structure according to any one of claims 16 to 26, characterized in that: The ring radiator is at least partially made of conductive material.

29. The antenna structure according to any one of claims 16 to 26, characterized in that: The antenna structure further includes a first frequency tuning element, which is selectively electrically connected to the first frequency band antenna and is configured to adjust the resonant frequency of the first frequency band antenna.

30. The antenna structure according to claim 29, characterized in that: The antenna structure further includes a second frequency tuning element, which is selectively electrically connected to the second frequency band antenna and is configured to adjust the resonant frequency of the second frequency band antenna.

31. A wearable electronic device, characterized in that: The invention comprises a housing, a position determining element and the antenna structure according to any one of claims 1 to 30, wherein the housing comprises a bottom wall and a side wall connected to the bottom wall, and the antenna structure is arranged on the side wall; The position determination element is electrically coupled to the first frequency band antenna and the second frequency band antenna respectively, and is configured to receive the first satellite positioning signal and the second satellite positioning signal, and determine the current geographic location according to the first satellite positioning signal and the second satellite positioning signal.

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