5G full-band antenna and terminal equipment

Abstract

The utility model brings forward a 5G full-band antenna and a terminal device, the 5G full-band antenna comprises an antenna body, a feed elastic sheet and a grounding elastic sheet, the antenna body comprises a first branch, a second branch, a third branch and a fourth branch, the first branch comprises a first connection segment, a second connection segment, a third connection segment and a fourth connection segment which are connected in sequence, and the second connection segment comprises a third connection segment and a fourth connection segment. The first connecting section, the second connecting section, the third connecting section and the fourth connecting section surround to form a ring, a gap is formed in the middle, the tail end of the first connecting section is connected with the feed elastic piece, the tail end of the fourth connecting section is connected with the grounding elastic piece, and one end of the first connecting section connected with the second connecting section is connected with the second branch; the end, connected with the third connecting section, of the fourth connecting section is connected with a third branch, the side, away from the first connecting section, of the third branch extends towards the second branch to form a fourth branch, and gaps are formed between the fourth branch and the second branch and between the fourth branch and the third connecting section. And LTE, NR and WIFI frequency bands can be covered at the same time in a small space.

Description

TECHNICAL FIELD

[0001] The utility model relates to antenna technical field especially relates to a 5G full frequency band antenna and terminal equipment. BACKGROUND

[0002] Nowadays, with the rapid development of communication technology, the volume of wireless mobile terminal products is getting smaller and smaller, the communication frequency band is getting more and more, and the antenna is getting smaller and smaller, and the space left for the antenna is getting smaller and smaller.

[0003] With the gradual commercialization of 5G network, many products need to support 5G communication. For the antenna, how to design a 5G full frequency band antenna in a small size and a small mainboard environment is a hot and difficult point of current research. Especially, the GSM frequency band 617-960MHz supported by domestic and foreign is difficult to cover in complex environment, and the requirement of intermediate frequency bandwidth is high. The current solution is usually: separate antenna design, and load multiple radio frequency switches for switching to achieve full frequency band coverage. The switch is expensive, and the price of a switch is several times or even dozens of times the price of the antenna. The increase in the number of antennas also means an increase in cost, and the separate antenna design will result in space waste and high design difficulty.

[0004] In addition, there are few antennas that integrate 5G antenna frequency band and WiFi5 / 6E frequency band at present. CONTENT OF THE UTILITY MODEL

[0005] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a 5G full frequency band antenna which realizes simultaneous coverage of LTE, NR and WIFI frequency bands in a smaller space.

[0006] To achieve the above purpose, the utility model adopts the technical scheme of:

[0007] A 5G full frequency band antenna, comprising an antenna body, a feed patch and a ground patch, the antenna body comprises a first branch, a second branch, a third branch and a fourth branch, the first branch comprises a first connection section, a second connection section, a third connection section and a fourth connection section connected in turn, the first connection section, the second connection section, the third connection section and the fourth connection section surround a ring shape, a gap is formed in the middle, the end of the first connection section and the end of the fourth connection section are arranged close to each other and have a gap, the end of the first connection section is connected with the feed patch, the end of the fourth connection section is connected with the ground patch, one end of the second connection section connected with the first connection section is connected with the second branch, one end of the third connection section connected with the fourth connection section is connected with the third branch, the side of the third branch away from the first connection section extends towards the second branch and the fourth branch close to the first branch and the second branch, and there is a gap between the fourth branch and the second branch and between the fourth branch and the third connection section.

[0008] Optionally, the gap is square.

[0009] Optionally, the fourth branch is arranged in parallel with the third connecting segment.

[0010] Optionally, the distance between the fourth branch and the third connecting segment is 1mm, so as to match the parasitic capacitance and parasitic inductance of the middle-high frequency and low frequency trace coupling.

[0011] Optionally, the antenna body is arranged in one piece.

[0012] Another technical solution adopted by the utility model is:

[0013] A terminal device comprises a mainboard and the 5G full-band antenna, the mainboard is provided with a feeding end and a grounding end, the feeding spring piece is connected with the feeding end, and the grounding spring piece is connected with the grounding end.

[0014] Optionally, the utility model further comprises a shell, the 5G full-band antenna is attached to the surface of the shell, and the mainboard is arranged in the interior of the shell.

[0015] The utility model has the advantages that the slit of the first branch is equivalent to a loop antenna, middle-high frequency radiation is formed, the second branch forms middle-high frequency radiation, and the tail end of the third branch and the fourth branch form low frequency radiation respectively. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 shows the structure of the 5G full-band antenna of the utility model;

[0017] Figure 2 Fig. 3 shows the S11 parameter simulation result of the 5G full-band antenna of the utility model;

[0018] Figure 3 Fig. 4 shows the coverage frequency band distribution of the 5G full-band antenna of the utility model;

[0019] Figure 4 Fig. 5 shows the efficiency curve of the 5G full-band antenna of the utility model;

[0020] Figure 5 Fig. 6 shows the average efficiency summary of the 5G full-band antenna of the utility model;

[0021] Figure 6A structure schematic view of the 5G full-band antenna and the mainboard of the terminal equipment is shown in the embodiment of the present utility model.

[0022] Figure 7 A partial schematic view of the terminal equipment is shown in the embodiment of the present utility model.

[0023] Label explanation:

[0024] 1, 5G full-band antenna; 11, feeding spring piece; 12, grounding spring piece; 13, first branch; 131, first connecting section; 132, second connecting section; 133, third connecting section; 134, fourth connecting section; 135, slit; 14, second branch; 15, third branch; 16, fourth branch; 2, mainboard; 21, feeding end; 22, grounding end; 3, shell. DETAILED DESCRIPTION

[0025] In order to make the technical content of the present utility model, the purposes and effects achieved more clearly understood, the present utility model is described in detail below in combination with specific embodiments and the accompanying drawings. It should be noted that the embodiments and the features in the embodiments of the present utility model can be combined with each other without conflict. In the following description, a lot of specific details are set forth in order to fully understand the present utility model, and the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present utility model.

[0026] Please refer to Figures 1-5 The embodiment one of the present utility model is shown in the figure, which comprises a shell 3, a mainboard 2, a 5G full-band antenna 1, a feeding end 21 and a grounding end 22.

[0027] A 5G full-band antenna 1, comprising an antenna body, a feed patch 11 and a ground patch 12, the antenna body comprising a first branch 13, a second branch 14, a third branch 15 and a fourth branch 16, the first branch 13 comprising a first connecting section 131, a second connecting section 132, a third connecting section 133 and a fourth connecting section 134 connected in sequence, the first connecting section 131, the second connecting section 132, the third connecting section 133 and the fourth connecting section 134 are arranged in a ring shape, forming a square gap 135 in the middle, the ends of the first connecting section 131 and the fourth connecting section 134 are arranged close to each other with a gap, the end of the first connecting section 131 is connected to the feed patch 11, and the end of the fourth connecting section 134 is connected to the ground patch 12, one end of the second connecting section 132 connected to the first connecting section 131 is connected to the second branch 14, one end of the third connecting section 133 connected to the fourth connecting section 134 is connected to the third branch 15, and the side of the third branch 15 away from the first connecting section 131 extends towards the fourth branch 16 close to the first branch 13 and the second branch 14, and the fourth branch 16 has a gap between the second branch 14 and the third branch 15. The fourth branch 16 is arranged in parallel with the third connecting section 133, and the distance between the fourth branch 16 and the third connecting section 133 is 1mm. The antenna body is arranged integrally. As shown in Figure 1

[0028] The 5G full-band antenna of the embodiment has a square gap in the first branch, which is equivalent to a Loop (ring) antenna, a medium-high frequency radiation part, and the length of the ring is half or an integer multiple of the working wavelength of the antenna; the second branch is a medium-high frequency radiation part, the third branch is a low frequency radiation part, and the fourth branch is a low frequency radiation part. As shown in Figure 2 The S11 parameter simulation results of the 5G full-band antenna of the embodiment are shown in Figure 3 The coverage frequency band distribution diagram of the 5G full-band antenna of the embodiment is shown in Figure 4 The efficiency curve of the 5G full-band antenna of the embodiment is shown in Figure 5 The average efficiency summary diagram corresponding to each frequency band of the 5G full-band antenna of the embodiment is shown in. As can be seen from the figure:

[0029] 1. The 5G full-band antenna of the embodiment covers the frequency range of 617-960MHz, 1690-2690MHz, 3300-4200MHz, 4400-5000MHz, 5150-5850MHz and 5950-7125MHz, and integrates all multi-frequency bands into one antenna.

[0030] ​2, all frequency bands average efficiency reaches 20% or more. Low frequency band 617-960MHz can cover, middle frequency 1690-2690MHz realizes full frequency band coverage, high frequency 3300-5000MHz covers 5G all frequency bands.

[0031] The 5G full-band antenna of the embodiment can realize full-band coverage of 2 / 3 / 4 / 5G, WIFI5 / 6E communication in small communication equipment without loading any matching elements and radio frequency switch elements, and solves the problems of difficult wideband antenna design and high cost of small equipment in complex environment.

[0032] Please refer to Figure 6 and Figure 7 The second embodiment of the utility model is:

[0033] A terminal device comprises a mainboard 2, a shell 3 and the 5G full-band antenna 1 described in the first embodiment, the mainboard 2 is provided with a feeding end 21 and a grounding end 22, the feeding spring piece 11 is connected with the feeding end 21, and the grounding spring piece 12 is connected with the grounding end 22, the 5G full-band antenna 1 is attached to the surface of the shell 3, and the mainboard 2 is arranged in the interior of the shell 3. The length of the mainboard 2 is 7cm.

[0034] The terminal device of the embodiment loads the 5G full-band antenna on the surface of the shell, which can be in the form of FPC or laser carving, and realizes multi-frequency coverage through winding.

[0035] The size of the mainboard affects the performance, generally, the better the performance is, the larger the required mainboard is, and the length of the current mainboard is only 7cm, which can effectively reduce the device volume under the condition of covering multiple communication frequency bands.

[0036] In summary, the utility model has the following advantages:

[0037] (1) without loading a radio frequency switch, all communication frequency bands of 5G can be completely covered, and the cost is low.

[0038] (2) without separate antenna design, the volume is small.

[0039] (3) all frequency bands of 2 / 3 / 4 / 5G can be covered, and WIFI5 / 6E commonly used frequency bands are also integrated.

[0040] (4) the antenna adopts spring piece feeding and is loaded on the surface of the shell of the terminal device to realize full-band coverage.

[0041] The above description is only an embodiment of the utility model, and does not limit the patent range of the utility model, so any modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belongs to the range of the technical scheme of the utility model.

Claims

1. A 5G full-band antenna, characterized in that, The antenna body comprises a first branch, a second branch, a third branch and a fourth branch, the first branch comprises a first connecting segment, a second connecting segment, a third connecting segment and a fourth connecting segment connected in sequence, the first connecting segment, the second connecting segment, the third connecting segment and the fourth connecting segment are arranged in a ring shape, a gap is formed in the middle, the end of the first connecting segment and the end of the fourth connecting segment are arranged close to each other with a gap, the end of the first connecting segment is connected with the feed spring, the end of the fourth connecting segment is connected with the ground spring, one end of the second connecting segment connected with the first connecting segment is connected with the second branch, one end of the third connecting segment connected with the fourth connecting segment is connected with the third branch, the side of the third branch away from the first connecting segment extends towards the fourth branch close to the first branch and the second branch, and the fourth branch and the second branch and the fourth branch and the third connecting segment have gaps therebetween.

2. The 5G full-band antenna of claim 1, wherein, The gap is square.

3. The 5G full band antenna of claim 1, wherein, The fourth branch is arranged in parallel with the third connecting segment.

4. The 5G full-band antenna of claim 1, wherein, The distance between the fourth branch and the third connecting segment is 1mm.

5. The 5G full frequency band antenna of claim 1, wherein, The antenna body is arranged in one piece.

6. A terminal device, comprising: The 5G full-band antenna comprises a main plate and the 5G full-band antenna of any one of claims 1-5, the main plate is provided with a feed end and a ground end, the feed spring is connected with the feed end, and the ground spring is connected with the ground end.

7. The terminal device according to claim 6, characterized by Further comprising a shell, the 5G full-band antenna is attached to the surface of the shell, and the main plate is arranged in the interior of the shell.

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