Antenna structure and electronic equipment
By employing a design with gaps and grounding ribs for isolation in the satellite communication antenna, the mutual interference problem between radiators was solved, achieving pattern complementarity and improved isolation, thereby enhancing the radiation performance and communication quality of satellite frequency band signals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2026-03-27
AI Technical Summary
In existing technologies, satellite communication antennas in electronic devices suffer from mutual interference between radiators, resulting in pattern distortion and insufficient isolation, which affects communication performance.
The first and second radiators are respectively matched with the metal frame segment to form a gap, and the gap is isolated by the backfill reinforcement. The parasitic branches are used for tuning to achieve complementary radiation patterns and improve isolation.
By complementing radiation patterns and improving isolation, mutual interference between radiators is reduced, improving the radiation performance and isolation of satellite frequency band signals and ensuring communication quality.
Smart Images
Figure CN121748768A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of terminals, and in particular, to an antenna structure and an electronic device. BACKGROUND
[0002] With the development of satellite technology, a new channel can be provided for the communication of electronic devices, so that in some deserts or remote areas, satellite communication through a mobile phone can be used to obtain rescue and improve the safety of exploration. SUMMARY
[0003] The present disclosure provides an antenna structure and an electronic device to solve the problems in the related art.
[0004] According to a first aspect of an embodiment of the present disclosure, an antenna structure is provided, comprising:
[0005] a first radiator;
[0006] a second radiator, the first radiator and the second radiator are both used for radiating satellite frequency band signals;
[0007] a first metal frame segment, the first metal frame segment is located between the first radiator and the second radiator, the first radiator and the first metal frame segment cooperate to form a first break joint, and the second radiator and the first metal frame segment cooperate to form a second break joint;
[0008] a first ground return position, the first ground return position is connected to the first metal frame segment.
[0009] Optionally, the first ground return position is connected to a middle region of the first metal frame segment, and in an extension direction of the first metal frame segment, a width of the first ground return position is less than an extension length of the first metal frame segment.
[0010] Optionally, in the extension direction of the first metal frame segment, the width of the first ground return position is greater than or equal to 12 mm.
[0011] Optionally, the first metal frame segment comprises a first branch, a second branch, and a connection region provided between the first branch and the second branch, and the connection region is connected to the first ground return position.
[0012] A first parasitic frequency of the first branch is greater than a working frequency point frequency of the first radiator, and a second parasitic frequency of the first branch is less than a working frequency point frequency of the second radiator.
[0013] Optionally, a third parasitic frequency of the second branch is greater than the working frequency point frequency of the second radiator, and a fourth parasitic frequency of the second branch is less than the working frequency point frequency of the first radiator.
[0014] Optional, also includes:
[0015] Second metal frame segment;
[0016] The second reinforcing bar position connects the second metal frame segment and the end of the first radiator away from the first fracture, and the second metal frame segment is bent relative to the first radiator.
[0017] The third metal frame segment, which cooperates with the second metal frame segment to form a third fracture, is a parasitic branch of the first radiator, and the parasitic frequency is lower than the operating frequency of the first radiator.
[0018] Optional, also includes:
[0019] Fourth metal frame segment;
[0020] The third reinforcing bar position is connected to the fourth metal frame segment and the end of the second radiator away from the second fracture. The fourth metal frame segment is bent relative to the second radiator.
[0021] The fifth metal frame segment, which cooperates with the fourth metal frame segment to form the fourth fracture, is a parasitic branch of the second radiator, and the parasitic frequency is lower than the operating frequency of the first radiator.
[0022] Optionally, the first radiator covers a frequency band of 1668MHz-1675MHz and a frequency band of 1518MHz-1525MHz;
[0023] The second radiator covers a frequency range of 1668MHz-1675MHz and a frequency range of 1518MHz-1525MHz.
[0024] According to a second aspect of the present disclosure, an electronic device is provided, including an antenna structure as described in any of the above embodiments.
[0025] Optionally, the end of the first radiator facing away from the first slit forms part of the side edge of the electronic device;
[0026] The end of the second radiator opposite to the second slit forms part of the side edge of the electronic device.
[0027] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:
[0028] As can be seen from the above embodiments, the first radiator and the second radiator in this disclosure are disposed on both sides of the first metal frame segment, which is conducive to achieving the complementarity of the radiation patterns of the first radiator and the second radiator; moreover, through the isolation effect of the first grounding rib, it is beneficial to improve the isolation between the first radiator and the second radiator, ensure that the mutual interference between the first radiator and the second radiator is controllable, and reduce the distortion effect that may be caused to the other's radiation pattern.
[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description
[0030] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.
[0031] Figure 1 This is a front view of an antenna structure according to an exemplary embodiment.
[0032] Figure 2 This is a left-handed circular polarization pattern of a first radiator according to an exemplary embodiment.
[0033] Figure 3 The diagram shows the standing wave ratio (SWR) curves of the first and second radiators and the isolation ratio curves of the first and second radiators of an antenna structure according to an exemplary embodiment.
[0034] Figure 4 This is an efficiency curve diagram of a first radiator and a second radiator according to an exemplary embodiment.
[0035] Figure 5 This is a front view of another antenna structure illustrated according to an exemplary embodiment.
[0036] Figure 6 This is a left-handed circular polarization pattern of another first radiator illustrated according to an exemplary embodiment.
[0037] Figure 7 This is a left-handed circular polarization pattern of a second radiator according to an exemplary embodiment. Detailed Implementation
[0038] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.
[0039] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
[0040] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."
[0041] Figure 1 This is a front view of an antenna structure according to an exemplary embodiment, such as... Figure 1 As shown, the antenna structure includes a first radiator 1, a second radiator 2, and a first metal frame segment 3. Both the first radiator 1 and the second radiator 2 are used to radiate satellite frequency band signals, such as BeiDou satellite frequency band signals, TianTong satellite frequency band signals, or StarNet frequency band signals. The first metal frame segment 3 is located between the first radiator 1 and the second radiator 2, and the first radiator 1 and the first metal frame segment 3 cooperate to form a first gap, while the second radiator 2 and the first metal frame segment 3 cooperate to form a second gap. The antenna structure also includes a first grounding rib position 4, which is connected to the first metal frame segment 3. For example, the first grounding rib position 4 and the first metal frame segment 3 can be integrally formed or fixedly connected later through a connection process.
[0042] Based on this, such as Figure 2 As shown, in the back view of the antenna structure, the left-hand circular polarization radiation pattern of the first radiator 1 is mainly concentrated in the upper right position, while the radiation pattern of the second radiator 2 is mainly concentrated in the upper left position. This facilitates the complementarity of the radiation patterns of the first radiator 1 and the second radiator 2. Furthermore, since the first metal frame segment 3 is located between the first radiator 1 and the second radiator 2, the first grounding rib position 4 is also located between the first radiator 1 and the second radiator 2. Through the isolation effect of the first grounding rib position 4, the isolation degree between the first radiator 1 and the second radiator 2 is improved, ensuring that the mutual interference between the first radiator 1 and the second radiator 2 is controllable and reducing the distortion effect that may be caused to the other's radiation pattern.
[0043] For example, such as Figure 3 As shown, taking the first radiator 1 covering the frequency range of 1668MHz-1675MHz and the frequency range of 1518MHz-1525MHz, and the second radiator 2 covering the frequency range of 1668MHz-1675MHz and the frequency range of 1518MHz-1525MHz as an example, Figure 3 As shown, the red curve is the standing wave curve of the first radiator 1, the yellow curve is the standing wave curve of the second radiator 2, and the green curve is the isolation curve between the first radiator 1 and the second radiator 2. It can be seen that within the coverage frequency band of the first radiator 1 and the second radiator 2, the isolation between the two radiators is approximately -10dB. Specifically, in the extension direction of the first metal frame segment 3, the width of the first grounding rib position 4 can be greater than or equal to 12mm, for example, it can be 13mm, 14mm, or 15.5mm. Based on this width design, the isolation between the first radiator 1 and the second radiator 2 can be guaranteed, reducing the impact of distortion.
[0044] Furthermore, the first grounding reinforcement 4 is connected to the middle region of the first metal frame segment 3, and in the extending direction of the first metal frame segment 3, that is... Figure 1 In the left-right direction, the width of the return reinforcement position 4 is less than the extension length of the first metal frame segment 3. For example, Figure 1 As shown, in the left-right direction, the width of the first grounding anchor 4 is less than the extension length of the first metal frame segment 3, and since the first grounding anchor 4 is connected to the middle region of the first metal frame segment 3, the first metal frame segment 3 can be divided by the first grounding anchor 4 into a first branch 31, a second branch 32, and a connecting area 33. The connecting area 33 is connected to the first metal frame segment 3 and is located between the first branch 31 and the second branch 32. The first branch 31 forms a first fracture with the first radiator 1, and the second branch 32 forms a fracture with the second radiator 2. Based on this, the first branch 31 and the second branch 32 can be tuned as parasitic branches, which is beneficial to improving the radiation performance of the first radiator 1 and the second radiator 2.
[0045] The first branch 31 can serve as a parasitic branch of the first radiator 1, and the first parasitic frequency of the first branch 31 is greater than the operating frequency of the first radiator 1. In this case, the first branch 31 mainly serves as an electroparasitic branch of the first radiator 1, which can improve the radiation performance of the first radiator 1. The first branch 31 can also serve as a parasitic branch of the second radiator 2, and the second parasitic frequency of the first branch 31 is less than the operating frequency of the second radiator 2. In this case, the first branch 31 mainly serves as a magnetic parasitic branch of the second radiator 2, which can optimize the radiation pattern of the second radiator 2. In the back view direction, the radiation pattern of the second radiator 2 can be concentrated from the original upper left corner to the right, which is beneficial to achieve the complementarity of the radiation patterns of the first radiator 1 and the second radiator 2.
[0046] Similarly, the second branch 32 can serve as a parasitic branch of the second radiator 2, and the third parasitic frequency of the second branch 32 is greater than the operating frequency of the second radiator 2. In this case, the second branch 32 mainly serves as an electroparasitic branch of the second radiator 2, which can improve the radiation performance of the second radiator 2. The second branch 32 can also serve as a parasitic branch of the first radiator 1, and the fourth parasitic frequency of the second branch 32 is less than the operating frequency of the first radiator 1. In this case, the second branch 32 mainly serves as a magnetic parasitic branch of the first radiator 1, which can optimize the radiation pattern of the first radiator 1, so that in the back view direction, the radiation pattern of the second radiator 2 can be concentrated from the original upper right corner to the left, which is beneficial to achieve the complementarity of the radiation patterns of the first radiator 1 and the second radiator 2.
[0047] For example, such as Figure 4 As shown, taking the first radiator 1 covering the frequency range of 1668MHz-1675MHz and the frequency range of 1518MHz-1525MHz, and the second radiator 2 covering the frequency range of 1668MHz-1675MHz and the frequency range of 1518MHz-1525MHz as an example, Figure 4 The red curve shows the efficiency curve of the first radiator 1, and the green curve shows the efficiency curve of the second radiator 2. See also... Figure 4 Within the frequency band enclosed by the blue dashed box, that is, within the aforementioned distance frequency band, through the electroparasitic effect of the first branch 31 and the electroparasitic effect of the second branch 32, the efficiency curves of the first radiator 1 and the second radiator 2 both show a significant bulge within the aforementioned frequency band, thereby improving the radiation efficiency of the first radiator 1 and the second radiator 2.
[0048] In some embodiments, the antenna structure further includes a second metal frame segment 5, a second grounding rib 6, and a third metal frame segment 7. The second grounding rib 6 connects the second metal frame segment 5 and one end of the first radiator 1 away from the first gap. The second metal frame segment 5 is bent relative to the first radiator 1, for example... Figure 5As shown, the second metal frame segment 5 is bent at 90° relative to the first radiator 1, and the third metal frame segment 7 cooperates with the second metal frame segment 5 to form a third gap. The third metal frame segment 7 can serve as a parasitic branch of the first radiator 1, and the parasitic frequency is lower than the operating frequency of the first radiator 1. Based on this, isolation through the second grounding bead position 6 and the third gap can improve the isolation between the first radiator 1 and the frequency bands covered by the second metal frame segment 5 and the third metal frame segment 7. Simultaneously, the third metal frame segment 7 serves as a magnetic parasitic branch of the first radiator 1, such as... Figure 6 As shown, in the back view direction, this makes the left-hand circular polarization pattern of the first radiator 1 more oriented to the upper right, which helps to reduce the area of overlap with the left-hand circular polarization pattern of the second radiator 2 and increase the coverage of the pattern.
[0049] Similarly, the antenna structure also includes a fourth metal frame segment 8, a third grounding rib 9, and a fifth metal frame segment 10. The third grounding rib 9 connects the fourth metal frame segment 8 and the end of the second radiator 2 away from the second gap. The fourth metal frame segment 8 is bent relative to the second radiator 2, for example... Figure 5 As shown, the fourth metal frame segment 8 is bent at 90° relative to the second radiator 2, and the fifth metal frame segment 10 cooperates with the fourth metal frame segment 8 to form the fourth gap. The fifth metal frame segment 10 can serve as a parasitic branch of the second radiator 2, and the parasitic frequency is lower than the operating frequency of the second radiator 2. Based on this, by isolating through the third grounding reinforcement position 9 and the third gap, the isolation between the second radiator 2 and the frequency bands covered by the fourth metal frame segment 8 and the fifth metal frame segment 10 can be improved. At the same time, by using the fifth metal frame segment 10 as a magnetic parasitic branch of the second radiator 2, such as... Figure 7 As shown, in the back view direction, this makes the left-hand circular polarization pattern of the second radiator 2 more oriented towards the zenith, which helps to reduce the area of overlap with the left-hand circular polarization pattern of the second radiator 2, increase the coverage of the pattern, and enhance the complementarity of the patterns of the first radiator 1 and the second radiator 2.
[0050] Based on the technical solution of this disclosure, an electronic device is also provided, which includes the antenna structure described in any of the foregoing embodiments. The end of the first radiator 1 facing away from the first slit forms a portion of the side edge of the electronic device; the end of the second radiator 2 facing away from the second slit forms a portion of the side edge of the electronic device. This achieves an ear-like design for the first radiator 1 and the second radiator 2, thereby improving complementary performance while ensuring that the radiation patterns of the first radiator 1 and the second radiator 2 are relatively centered.
[0051] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.
[0052] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.
Claims
1. An antenna structure, characterized in that, include: First radiator; The second radiator, both the first and second radiators are used to radiate satellite frequency band signals; A first metal frame segment is located between the first radiator and the second radiator. The first radiator and the first metal frame segment cooperate to form a first gap, and the second radiator and the first metal frame segment cooperate to form a second gap. The first ground reinforcement position is connected to the first metal frame segment.
2. The antenna structure according to claim 1, characterized in that, The first grounding reinforcement is connected to the middle area of the first metal frame segment. In the extending direction of the first metal frame segment, the width of the first grounding reinforcement is less than the extending length of the first metal frame segment.
3. The antenna structure according to claim 2, characterized in that, In the extending direction of the first metal frame segment, the width of the first grounding rib is greater than or equal to 12mm.
4. The antenna structure according to claim 2, characterized in that, The first metal frame segment includes a first branch, a second branch, and a connecting area disposed between the first branch and the second branch, the connecting area being connected to the first grounding bar location; The first parasitic frequency of the first branch is greater than the operating frequency of the first radiator, and the second parasitic frequency of the first branch is less than the operating frequency of the second radiator.
5. The antenna structure according to claim 4, characterized in that, The third parasitic frequency of the second branch is greater than the operating frequency of the second radiator, and the fourth parasitic frequency of the second branch is less than the operating frequency of the first radiator.
6. The antenna structure according to claim 1, characterized in that, Also includes: Second metal frame segment; The second reinforcing bar position connects the second metal frame segment and the end of the first radiator away from the first fracture, and the second metal frame segment is bent relative to the first radiator. The third metal frame segment, which cooperates with the second metal frame segment to form a third fracture, is a parasitic branch of the first radiator, and the parasitic frequency is lower than the operating frequency of the first radiator.
7. The antenna structure according to claim 6, characterized in that, Also includes: Fourth metal frame segment; The third reinforcing bar position is connected to the fourth metal frame segment and the end of the second radiator away from the second fracture. The fourth metal frame segment is bent relative to the second radiator. The fifth metal frame segment, which cooperates with the fourth metal frame segment to form the fourth fracture, is a parasitic branch of the second radiator, and the parasitic frequency is lower than the operating frequency of the first radiator.
8. The antenna structure according to claim 1, characterized in that, The first radiator covers a frequency band of 1668MHz-1675MHz and a frequency band of 1518MHz-1525MHz; The second radiator covers a frequency range of 1668MHz-1675MHz and a frequency range of 1518MHz-1525MHz.
9. An electronic device, characterized in that, The antenna structure includes any one of claims 1-8.
10. The electronic device according to claim 9, characterized in that, The end of the first radiator that is away from the first slit forms part of the side edge of the electronic device; The end of the second radiator opposite to the second slit forms part of the side edge of the electronic device.