GPS antenna and intelligent wearable device

Abstract

The utility model provides a GPS antenna which is applied to a wearable device, the GPS antenna comprises a first radiation unit, a second radiation unit and a third radiation unit, the third radiation unit and the second radiation unit are in coupling connection to form an annular radiation assembly, the first radiation unit is arranged around the radiation assembly, and the second radiation unit is arranged around the radiation assembly. The first radiation unit is in coupling connection with the radiation assembly; the first radiation unit comprises a first feeding point, a first grounding point, a second feeding point and a second grounding point, and the first feeding point, the first grounding point, the second feeding point and the second grounding point are all electrically connected with a mainboard of the wearable device. According to the GPS antenna, the structural design of the antenna is simplified, secondary resonance can be generated again on the basis of GPS main resonance, the overall bandwidth and resonance depth of the antenna are effectively improved, and therefore the overall performance of the GPS antenna is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of communication, and in particular to a GPS antenna and an intelligent wearable device using the GPS antenna. Background Art

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also constantly expanding. Nowadays, mobile phones are commonly used mobile terminal products. With the continuous development of technology, terminals will inevitably use 5G communication technology, which requires the number of antennas in the terminal to be increased. However, the space of the terminal is limited, and the bandwidth of the antenna is also limited by space, so the frequency band covered by the GPS antenna is limited, making it difficult to achieve the bandwidth radiation of the antenna.

[0003] The GPS antenna in traditional wearable devices has a complex structure, low radiation efficiency, poor radiation gain and directionality, poor isolation and difficulty in debugging. In view of this, it is necessary for the utility model to provide a new type of GPS antenna and a smart wearable device using the GPS antenna. Utility Model Content

[0004] The utility model aims to provide a GPS antenna, which not only simplifies the antenna structure design, but also can generate secondary resonance again based on the GPS main resonance, effectively improving the overall bandwidth and resonance depth of the antenna, thereby improving the overall performance of the GPS antenna.

[0005] In order to solve the above technical problems, the utility model provides a GPS antenna, which is applied to a wearable device, wherein the GPS antenna includes a first radiation unit, a second radiation unit and a third radiation unit, wherein the third radiation unit and the second radiation unit are coupled to form a ring-shaped radiation component, wherein the first radiation unit is arranged around the radiation component, and the first radiation unit is coupled to the radiation component; the first radiation unit includes a first feeding point, a first grounding point, a second feeding point and a second grounding point, and the first feeding point, the first grounding point, the second feeding point and the second grounding point are all electrically connected to the mainboard of the wearable device.

[0006] As a further improvement of the present invention, the first radiation unit is configured as an outer frame of the wearable device, and when the wearable device is working, the first radiation unit forms GPS resonance.

[0007] As a further improvement of the present invention, the second radiation unit and the third radiation unit are both arranged in an arc shape, and the second radiation unit and the third radiation unit are symmetrically arranged to form the radiation component.

[0008] As a further improvement of the present invention, the second radiation unit and the third radiation unit are coupled to form a first coupling slot and a second coupling slot, and the first coupling slot and the second coupling slot are symmetrically arranged.

[0009] As a further improvement of the present invention, the second radiation unit and the third radiation unit are both configured as PDS or LDS antennas, and the first radiation unit forms GPS resonance and generates a magnetic field to stimulate coupling between the second radiation unit and the third radiation unit.

[0010] As a further improvement of the present invention, the coupling distance between the first radiation unit and the radiation component is in the range of 2mm-3mm.

[0011] As a further improvement of the present invention, the plane where the first radiation unit is located is lower than or higher than the plane where the radiation component is located, and the vertical height distance range between the first radiation unit and the radiation component is 1.5 mm±0.1.

[0012] As a further improvement of the present invention, the width range of the second radiation unit and the third radiation unit is both 1 mm±0.1.

[0013] As a further improvement of the present invention, the first feeding point is configured to feed at the 11 o'clock position, the second feeding point is configured to feed at the 13 o'clock position, the first grounding point is configured to ground at the 19 o'clock position, and the second grounding point is configured to ground at the 17 o'clock position.

[0014] The purpose of the utility model is to provide a smart wearable device to better apply the above-mentioned GPS antenna.

[0015] In order to solve the above technical problems, the utility model provides a smart wearable device, which includes the aforementioned GPS antenna.

[0016] The utility model uses a GPS antenna, which is applied to a wearable device. The GPS antenna includes a first radiation unit, a second radiation unit and a third radiation unit. The third radiation unit and the second radiation unit are coupled to form a ring-shaped radiation component. The first radiation unit is arranged around the radiation component, and the first radiation unit is coupled to the radiation component. The first radiation unit includes a first feeding point, a first grounding point, a second feeding point, and a second grounding point. The first feeding point, the first grounding point, the second feeding point and the second grounding point are all electrically connected to the mainboard of the wearable device. The GPS antenna of the utility model not only simplifies the antenna structure design, but also can generate secondary resonance again based on the GPS main resonance, effectively improving the overall bandwidth and resonance depth of the antenna, thereby improving the overall performance of the GPS antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the GPS antenna of the utility model.

[0018] Figure 2 This is a schematic diagram of the resonance image of a traditional GPS antenna.

[0019] Figure 3 It is a schematic diagram of the resonance image of the GPS antenna of the present utility model.

[0020] Figure 4 This is a comparison chart of the actual passive efficiency of the traditional GPS and the GPS antenna of the present invention.

[0021] The descriptions of the reference numerals are as follows:

[0022] GPS antenna 100, first radiation unit 10, first feeding point 11, first grounding point

[0023] 12, second feeding point 13, second grounding point 14,

[0024] Radiating component 20 , second radiating unit 21 , third radiating unit 22 , first coupling slot 23 , second coupling slot 24 . DETAILED DESCRIPTION

[0025] The following is a further detailed description of the GPS antenna 100 and the smart wearable device using the GPS antenna 100 proposed by the utility model in combination with the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. In addition, the structure shown in the accompanying drawings is often a part of the actual structure. In particular, the emphasis of each accompanying drawing is different, and sometimes different proportions are used.

[0026] like Figure 1 As shown, the utility model provides a GPS antenna 100, which is applied to a wearable device. The wearable device includes a mainboard and the above-mentioned GPS antenna 100. Preferably, the wearable device of the utility model is a smart wearable watch. Of course, the wearable device can also be a smart wearable bracelet, etc.

[0027] Specifically, the GPS antenna 100 includes a first radiation unit 10, a second radiation unit 21 and a third radiation unit 22, the third radiation unit 22 and the second radiation unit 21 are coupled to form a ring-shaped radiation component 20, the first radiation unit 10 is arranged around the radiation component 20, and the first radiation unit 10 is coupled to the radiation component 20; the first radiation unit 10 includes a first feeding point 11, a first grounding point 12, a second feeding point 13, and a second grounding point 14, the first feeding point 11, the first grounding point 12, the second feeding point 13 and the second grounding point 14 are all electrically connected to the mainboard of the wearable device.

[0028] With such a configuration, the GPS antenna 100 of the utility model can not only optimize the overall structure of the antenna, but also improve the performance of the GPS antenna by generating a secondary resonance on the GPS resonance, thereby increasing the bandwidth of the GPS antenna and the depth of resonance, thereby solving the problem of low efficiency of traditional antennas. At the same time, it is simple to debug and has a wide range of applications. The coupling antenna on the back cover of the wearable device can also effectively improve the directivity and gain effect.

[0029] As a first embodiment of the present utility model, the second radiation unit 21 and the third radiation unit 22 are both configured as PDS antennas, and the first radiation unit 10 forms GPS resonance and generates a magnetic field to stimulate the coupling of the second radiation unit 21 and the third radiation unit 22.

[0030] In the traditional GPS antenna, the second radiation unit 21 and the third radiation unit 22 are not provided in an arc shape, and the second radiation unit 21 and the third radiation unit 22 are symmetrically arranged to form the radiation component 20. That is, in the traditional solution, only the first radiation unit 10 is provided to be configured as the outer frame of the wearable device, and when the wearable device is working, the first radiation unit 10 forms a GPS resonance. Since there is only a single GPS resonance, the GPS antenna has problems such as low efficiency, narrow bandwidth, and insufficient resonance depth. These problems seriously affect the positioning accuracy and user experience of the wearable device.

[0031] The GPS antenna 100 of the utility model is based on the conventional solution that the first radiation unit 10 forms GPS resonance, and by adding a second radiation unit 21 and a third radiation unit 22, the second radiation unit 21 and the third radiation unit 22 are both arranged in an arc shape, and the second radiation unit 21 and the third radiation unit 22 are symmetrically arranged to form the radiation component 20. The second radiation unit 21 and the third radiation unit 22 are both configured as PDS antennas, so that when the wearable device is working, the first radiation unit 10 is the outer frame of the wearable device, and the outer frame is the antenna. When the alternating current flows in the outer frame antenna, a strong magnetic field will be generated around the outer frame. The magnetic field passes through the cross section of the outer frame and the space around the outer frame, and the second radiation unit 21 and the third radiation unit 22 can be coupled, and a sub-resonance is generated on the GPS resonance, thereby improving the bandwidth and resonance depth of the GPS antenna, thereby improving the performance of the GPS antenna.

[0032] In addition, the utility model generates a secondary resonance on the GPS resonance by adding the second radiation unit 21 and the third radiation unit 22. Since the design point is mainly on the GPS antenna, the second radiation unit 21 and the third radiation unit 22 can not only be laser engraved on the back shell of the wearable device in the form of PDS, but also other types of antennas, such as LDS antennas.

[0033] As a second embodiment of the present utility model, the second radiation unit 21 and the third radiation unit 22 are both configured as LDS antennas, and the first radiation unit 10 forms GPS resonance and generates a magnetic field to stimulate the coupling of the second radiation unit 21 and the third radiation unit 22.

[0034] like Figure 2 As shown in the figure, this is the traditional GPS resonance, that is, the first radiation unit body. The first radiation unit is electrically connected to the mainboard through a matching network at a specific position to form GPS feeding. At the same time, the frequency deviation of GPS resonance is adjusted by adjusting the impedance, thereby forming GPS resonance. Its GPS resonance frequency curve is shown in the figure. Figure 3 As shown in the figure, this is the GPS antenna 100 of the present invention, that is, the GPS antenna body including the first radiation unit, the second radiation unit and the third radiation unit. The first radiation unit forms GPS resonance and generates a magnetic field to stimulate the coupling of the second radiation unit and the third radiation unit, and generates a sub-resonance on the GPS resonance. The red frame is the coupled sub-resonance generated, from which it can be seen that the GPS antenna 100 of the present invention has an efficiency improvement of 1.5dB compared with the traditional GPS antenna, which significantly improves the performance of the GPS antenna. Figure 4As shown, in the bandwidth range of 1500-1620Mhz of the GPS antenna, in actual passive comparison, the GPS antenna 100 of the present invention has an efficiency improvement of 1.6-1.7dB compared with the traditional GPS antenna at the same frequency.

[0035] Preferably, the second radiation unit 21 and the third radiation unit 22 in the GPS antenna 100 are both configured as PDS antennas, and the second radiation unit 21 and the third radiation unit 22 are coupled to form a first coupling slot 23 and a second coupling slot 24, and the first coupling slot 23 and the second coupling slot 24 are symmetrically arranged. The first radiation unit 10 forms GPS resonance and generates a magnetic field to excite the second radiation unit 21 and the third radiation unit 22 to couple. The coupling spacing between the first radiation unit 10 and the radiation component 20 ranges from 2mm to 3mm. The plane where the first radiation unit 10 is located is lower than or higher than the plane where the radiation component 20 is located, and the vertical height distance between the first radiation unit 10 and the radiation component 20 ranges from 1.5mm±0.1. The width range of the second radiation unit 21 and the third radiation unit 22 is both 1mm±0.1. The first feeding point 11 is configured to feed at the 11 o'clock position, the second feeding point 13 is configured to feed at the 13 o'clock position, the first grounding point 12 is configured to be grounded at the 19 o'clock position, and the second grounding point 14 is configured to be grounded at the 17 o'clock position. By setting the first coupling gap 23 and the second coupling gap 24 symmetrically, the coupling magnetic fields on both sides are equal, which can maximize the performance improvement. At the same time, since the coupling antenna is on the back cover of the wearable device, the directivity and gain effect can also be effectively improved.

[0036] The utility model provides a GPS antenna 100 and a smart wearable device, wherein the GPS antenna 100 includes a first radiation unit 10, a second radiation unit 21 and a third radiation unit 22, wherein the third radiation unit 22 and the second radiation unit 21 are coupled to form a ring-shaped radiation component 20, wherein the first radiation unit 10 is arranged around the radiation component 20, and the first radiation unit 10 is coupled to the radiation component 20; the first radiation unit 10 includes a first feeding point 11, a first grounding point 12, a second feeding point 13, and a second grounding point 14, wherein the first feeding point 11, the first grounding point 12, the second feeding point 13 and the second grounding point 14 are all electrically connected to the mainboard of the wearable device. The GPS antenna 100 of the utility model can not only optimize the overall structure of the antenna, reduce the cost and manufacturing difficulty, but also improve the GPS resonance depth and bandwidth, improve the efficiency of the antenna, and avoid the problem that the frequency deviation of the GPS resonance is adjusted by adjusting the impedance in the traditional solution, the operation is complicated, and it is not easy to apply in practice. At the same time, it can effectively improve the directivity and gain effect of the GPS antenna. That is, the GPS antenna of the present invention not only simplifies the antenna structure design, but also can generate secondary resonance again based on the GPS main resonance, effectively improving the overall bandwidth and resonance depth of the antenna, thereby improving the overall performance of the GPS antenna.

[0037] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. In addition, the different parts between the various embodiments can also be used in combination with each other, and the present utility model is not limited to this.

[0038] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A GPS antenna, applied to a wearable device, characterized in that: The GPS antenna includes a first radiation unit, a second radiation unit and a third radiation unit, the third radiation unit and the second radiation unit are coupled to form a ring-shaped radiation component, the first radiation unit is arranged around the radiation component, and the first radiation unit is coupled to the radiation component; the first radiation unit includes a first feeding point, a first grounding point, a second feeding point, and a second grounding point, and the first feeding point, the first grounding point, the second feeding point and the second grounding point are all electrically connected to the mainboard of the wearable device.

2. The GPS antenna according to claim 1, characterized in that: The first radiation unit is configured as an outer frame of the wearable device. When the wearable device is working, the first radiation unit forms GPS resonance.

3. The GPS antenna according to claim 2, characterized in that: The second radiation unit and the third radiation unit are both arranged in an arc shape, and the second radiation unit and the third radiation unit are symmetrically arranged to form the radiation component.

4. The GPS antenna according to claim 3, characterized in that: The second radiation unit and the third radiation unit are coupled to form a first coupling slot and a second coupling slot, and the first coupling slot and the second coupling slot are symmetrically arranged.

5. The GPS antenna according to claim 4, characterized in that: The second radiation unit and the third radiation unit are both configured as PDS or LDS antennas, and the first radiation unit forms GPS resonance and generates a magnetic field to stimulate coupling between the second radiation unit and the third radiation unit.

6. The GPS antenna according to claim 5, characterized in that: The coupling distance between the first radiation unit and the radiation component ranges from 2 mm to 3 mm.

7. The GPS antenna according to claim 6, characterized in that: The plane where the first radiation unit is located is lower than or higher than the plane where the radiation component is located, and the vertical height distance range between the first radiation unit and the radiation component is 1.5 mm±0.

1.

8. The GPS antenna according to claim 7, characterized in that: The width range of the second radiation unit and the third radiation unit is both 1 mm±0.

1.

9. The GPS antenna according to claim 8, characterized in that: The first feeding point is configured to feed at the 11 o'clock position, the second feeding point is configured to feed at the 13 o'clock position, the first grounding point is configured to be grounded at the 19 o'clock position, and the second grounding point is configured to be grounded at the 17 o'clock position.

10. A smart wearable device, characterized in that: The smart wearable device comprises the GPS antenna described in any one of claims 1-9.

Images