High-efficiency terminal antenna and mobile terminal

Abstract

The utility model provides a high-efficiency terminal antenna and a mobile terminal. The high-efficiency terminal antenna comprises a feeding point, a grounding point, a first radiation branch knot, a second radiation branch knot, a third radiation branch knot and a fourth radiation branch knot, wherein the first radiation branch knot is electrically connected with the feeding point, and the second radiation branch knot, the third radiation branch knot and the fourth radiation branch knot are electrically connected with the grounding point. The third radiation branch knot is connected with the first radiation branch knot, and the fourth radiation branch knot is connected with the third radiation branch knot; a first gap is arranged between the first radiation branch knot and the second radiation branch knot, and a second gap is arranged between the fourth radiation branch knot and the first radiation branch knot. The high-efficiency terminal antenna not only can effectively improve the radiation bandwidth of the antenna so as to improve the overall radiation efficiency of the antenna, but also can broaden the radiation frequency band of the antenna.

Description

Technical Field

[0001] The utility model relates to the technical field of communication, and in particular to a high-efficiency terminal antenna and a mobile terminal. Background Art

[0002] With the continuous development of 5G base station construction, the frequency bands supported by communication terminals are also constantly expanding. Nowadays, as the functions of mobile phones are becoming more and more widely used, consumers have higher and higher requirements for the signal strength when surfing the Internet with mobile phones. In particular, the North American market has high requirements for the performance of mobile phone WiFi, and the mobile phone environment is getting worse and worse. In order to improve the performance of mobile phone three-in-one antenna WiFi to meet the needs of North American operators, it is urgent to optimize the performance of each frequency band of the antenna pair.

[0003] In view of this, it is indeed necessary for the present invention to provide a high-efficiency terminal antenna and a mobile terminal using the antenna. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency terminal antenna, which can not only effectively improve the radiation bandwidth of the antenna, thereby improving the overall radiation efficiency of the antenna, but also widen the radiation frequency band of the antenna.

[0005] In order to solve the above technical problems, the utility model provides a high-efficiency terminal antenna, which includes a feeding point, a grounding point, a first radiating branch electrically connected to the feeding point, a second radiating branch electrically connected to the grounding point, a third radiating branch and a fourth radiating branch; the third radiating branch is connected to the first radiating branch, and the fourth radiating branch is connected to the third radiating branch; a first gap is provided between the first radiating branch and the second radiating branch, and a second gap is provided between the fourth radiating branch and the first radiating branch.

[0006] As a further improvement of the present invention, the second slit is located above the first slit, and the opening direction of the second slit is opposite to the opening direction of the first slit.

[0007] As a further improvement of the present invention, the first radiation branch is located above the second radiation branch, the fourth radiation branch is located above the first radiation branch, and the first radiation branch is located between the second radiation branch and the fourth radiation branch.

[0008] As a further improvement of the present invention, one end of the second radiation branch is electrically connected to the grounding point, and the other end is connected to the first radiation branch.

[0009] As a further improvement of the present invention, one end of the first radiating branch is electrically connected to the feeding point, and the other end is connected to the second radiating branch; the third radiating branch and the fourth radiating branch are both connected to the first radiating branch, and are excited by sharing the feeding point.

[0010] As a further improvement of the present invention, the first gap is located between the feeding point and the grounding point, and the first gap is arranged in an inverted L shape.

[0011] As a further improvement of the present invention, the second slot includes a first slot extending from one end close to the feeding point to the other end away from the feeding point, and a second slot connected to the first slot, and the second slot is perpendicular to the first slot.

[0012] As a further improvement of the present invention, the transverse length of the first gap is in the range of 8-10 mm, and the longitudinal length is in the range of 0.8-1.2 mm; the length of the second slot is in the range of 3-4 mm, and the width is in the range of 0.8-1.2 mm.

[0013] As a further improvement of the present invention, the third radiation branch is located at a lower right position of the second radiation branch, and the third radiation branch extends in a direction away from the first gap or the second gap.

[0014] The purpose of the utility model is to provide a mobile terminal to better apply the above-mentioned high-efficiency terminal antenna.

[0015] In order to solve the above technical problems, the utility model provides a mobile terminal, which includes the above high-efficiency terminal antenna.

[0016] The utility model provides a high-efficiency terminal antenna, which includes a feeding point, a grounding point, a first radiating branch electrically connected to the feeding point, a second radiating branch electrically connected to the grounding point, a third radiating branch and a fourth radiating branch; the third radiating branch is connected to the first radiating branch, and the fourth radiating branch is connected to the third radiating branch; a first gap is provided between the first radiating branch and the second radiating branch, and a second gap is provided between the fourth radiating branch and the first radiating branch. The high-efficiency terminal antenna of the utility model can not only effectively improve the radiation bandwidth of the antenna, thereby improving the overall radiation efficiency of the antenna, but also can broaden the radiation frequency band of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the high-efficiency terminal antenna of the utility model.

[0018] Figure 2These are the S11 simulation diagrams of 2.4G and 5.8G of the high-efficiency terminal antenna of the utility model and the S11 simulation diagrams of 2.4G and 5.8G of the traditional antenna.

[0019] Figure 3 It is a comparison diagram of the radiation efficiency of the high-efficiency terminal antenna (new antenna solution) of the utility model and the traditional antenna (old antenna solution).

[0020] The descriptions of the reference numerals are as follows:

[0021] Feeding point 1, grounding point 2, first radiation branch 3, second radiation branch 4, third radiation branch 5, fourth radiation branch 6, first slot 7, second slot 8, first slot 81, second slot 82. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the high-efficiency terminal antenna proposed by the utility model and the mobile terminal using the antenna in combination with the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are 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.

[0023] The utility model provides a high-efficiency terminal antenna, which can be applied to various mobile terminals such as mobile phones, tablets and notebook computers.

[0024] Specifically, the high-efficiency terminal antenna includes a feeding point 1, a grounding point 2, a grounding point 2, a first radiating branch 3 electrically connected to the feeding point 1, a second radiating branch 4 electrically connected to the grounding point 2, a third radiating branch 5 and a fourth radiating branch 6; the third radiating branch 5 is connected to the first radiating branch 3, and the fourth radiating branch 6 is connected to the third radiating branch 5; a first gap 7 is opened between the first radiating branch 3 and the second radiating branch 4, and a second gap 8 is opened between the fourth radiating branch 6 and the first radiating branch 3.

[0025] With such a configuration, the entire antenna can not only effectively improve the radiation bandwidth of the antenna compared to the traditional antenna, thereby improving the overall radiation efficiency of the antenna, but also broaden the radiation frequency band of the antenna. The third radiation antenna in the utility model mainly controls the resonance of WiFi 2.4G, with a frequency band of 2.4GHz-2.5GHz. Such a configuration can deepen the resonance of WiFi 2.4G, and the overall radiation efficiency of the antenna is effectively improved. The slotted configuration of the second slot 8 also increases the resonance bandwidth of WiFi 5.8G, with a frequency band of 5.15GHz-5.85GHz. In this way, the efficiency is significantly improved.

[0026] The traditional antenna controls the resonant frequency deviation of the GPS frequency band at 1.575GHz, controls the resonant frequency deviation of WiFi 2.4G (2.4-2.5GHz), and controls the resonant frequency deviation of WiFi 5.8G (5.15-5.85GHz). After multiple simulation test comparisons, as shown in the figure, the radiation efficiency of the antenna of the utility model is about 1.5dB higher than the radiation efficiency of the original traditional antenna solution in WiFi 2.4G, and about 1dB higher in WiFi 5.8. The S11 resonance of the high-frequency terminal antenna WiFi 2.4G of this utility model is relatively deep, and the bandwidth of WiFi 5.8G is relatively wide. It can be concluded that the radiation efficiency of the high-frequency terminal antenna of this utility model has been effectively improved.

[0027] Further, the second slot 8 is located above the first slot 7, and the opening direction of the second slot 8 is opposite to the opening direction of the first slot 7. The first radiation branch 3 is located above the second radiation branch 4, the fourth radiation branch 6 is located above the first radiation branch 3, and the first radiation branch 3 is located between the second radiation branch 4 and the fourth radiation branch 6. One end of the second radiation branch 4 is electrically connected to the grounding point 2, and the other end is connected to the first radiation branch 3. One end of the first radiation branch 3 is electrically connected to the feeding point 1, and the other end is connected to the second radiation branch 4; the third radiation branch 5 and the fourth radiation branch 6 are both connected to the first radiation branch 3, and are excited by the common feeding point 1. The first slot 7 is located between the feeding point 1 and the grounding point 2, and the first slot 7 is arranged in an inverted L shape.

[0028] Specifically, the third radiation branch 5 includes a radiation branch that mainly controls the resonant frequency deviation of GPS, and the second slot 8 includes a first slot 81 extending from one end close to the feeding point 1 to the other end away from the feeding point 1, and a second slot 82 connected to the first slot 81, and the second slot 82 is perpendicular to the first slot 81. The length of the second slot 82 mainly controls the resonant frequency deviation of GPS and improves the radiation bandwidth of WiFi 5.8G. The third radiation branch 5 mainly controls the resonant frequency deviation of WiFi 2.4G. The length of the first slot 7 between the feeding point 1 and the grounding point 2 mainly controls the resonance of WiFi 5.8G.

[0029] Furthermore, the length of the branch in the third radiation branch 5 that mainly controls the resonant frequency deviation of GPS is in the range of 16mm-20mm; the lateral length of the first slot 7 is in the range of 8-10mm, and the longitudinal length is in the range of 0.8-1.2mm; the length of the second slot 82 is in the range of 3-4mm, and the width is in the range of 0.8-1.2mm. It should be noted that the first slot 7 opened between the feeding point 1 and the grounding point 2 is opened in the direction toward the ground. The middle distance between the feeding point 1 and the grounding point 2 is in the range of 2.5mm-3.5mm.

[0030] Further, the third radiation branch 5 is located at the lower right position of the second radiation branch 4, and the third radiation branch 5 extends in a direction away from the first slit 7 or the second slit 8. The length of the third radiation branch 5 is in the range of 13 mm to 16 mm.

[0031] That is to say, the GPS frequency band is controlled to be set at the position above the feed point 1, that is, the fourth radiation branch 6, and the area of ​​the third radiation branch 5 of the right branch is increased, which mainly controls the resonance of WiFi 2.4G, making the resonance of WiFi 2.4G deeper, so that the overall radiation efficiency of the antenna is effectively improved. In addition, the length of the first gap 7 between the feed point 1 and the grounding point 2 can control the resonance of WiFi 5.8, and the slot of the second gap 8 covers the bandwidth of WiFi 5.8G, which can also effectively improve the radiation efficiency of the antenna.

[0032] In summary, the utility model provides a high-efficiency terminal antenna, which includes a feeding point 1, a grounding point 2, a grounding point 2, a first radiating branch 3 electrically connected to the feeding point 1, a second radiating branch 4 electrically connected to the grounding point 2, a third radiating branch 5 and a fourth radiating branch 6; the third radiating branch 5 is connected to the first radiating branch 3, and the fourth radiating branch 6 is connected to the third radiating branch 5; a first gap 7 is provided between the first radiating branch 3 and the second radiating branch 4, and a second gap 8 is provided between the fourth radiating branch 6 and the first radiating branch 3. The high-efficiency terminal antenna of the utility model can not only effectively improve the radiation bandwidth of the antenna, thereby improving the overall radiation efficiency of the antenna, but also can broaden the radiation frequency band of the antenna.

[0033] 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.

[0034] 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 high-efficiency terminal antenna, characterized in that: The high-efficiency terminal antenna comprises a feeding point, a grounding point, a first radiation branch electrically connected to the feeding point, a second radiation branch electrically connected to the grounding point, a third radiation branch and a fourth radiation branch; The third radiating branch is connected to the first radiating branch, and the fourth radiating branch is connected to the third radiating branch; A first gap is defined between the first radiation branch and the second radiation branch, and a second gap is defined between the fourth radiation branch and the first radiation branch.

2. The high-efficiency terminal antenna according to claim 1, characterized in that: The second slit is located above the first slit, and an opening direction of the second slit is opposite to an opening direction of the first slit.

3. The high-efficiency terminal antenna according to claim 1, characterized in that: The first radiation branch is located above the second radiation branch, the fourth radiation branch is located above the first radiation branch, and the first radiation branch is located between the second radiation branch and the fourth radiation branch.

4. The high-efficiency terminal antenna according to claim 1, characterized in that: One end of the second radiation branch is electrically connected to the ground point, and the other end of the second radiation branch is connected to the first radiation branch.

5. The high-efficiency terminal antenna according to claim 1, characterized in that: One end of the first radiation branch is electrically connected to the feeding point, and the other end is connected to the second radiation branch; the third radiation branch and the fourth radiation branch are both connected to the first radiation branch and are excited by sharing the feeding point.

6. The high-efficiency terminal antenna according to claim 1, characterized in that: The first gap is located between the feeding point and the grounding point, and the first gap is arranged in an inverted L shape.

7. The high-efficiency terminal antenna according to claim 1, characterized in that: The second slot includes a first slot extending from one end close to the feeding point to the other end away from the feeding point, and a second slot communicating with the first slot, wherein the second slot is perpendicular to the first slot.

8. The high-efficiency terminal antenna according to claim 7, characterized in that: The transverse length of the first slot is in the range of 8-10 mm, and the longitudinal length is in the range of 0.8-1.2 mm; the length of the second slot is in the range of 3-4 mm, and the width is in the range of 0.8-1.2 mm.

9. The high-efficiency terminal antenna according to claim 1, characterized in that: The third radiation branch is located at a lower right position of the second radiation branch, and the third radiation branch extends in a direction away from the first gap or the second gap.

10. A mobile terminal, characterized in that: The mobile terminal comprises the high-efficiency terminal antenna according to any one of claims 1-9.

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