Integrated antenna and communication equipment

Abstract

The embodiment of the utility model relates to the technical field of communication, and discloses an integrated antenna and communication equipment, the integrated antenna comprises an antenna body and a circuit mainboard, the antenna body comprises a first radiation part, a second radiation part, a slot unit and a parasitic unit, the slot unit comprises at least one slot arranged along the length direction of the antenna body; the antenna body is arranged on the circuit mainboard, and the parasitic unit is arranged on one side, close to the circuit mainboard, of the antenna body and is electrically connected with the circuit mainboard through at least one grounding point. Through the above mode, full coverage of multiple frequency bands of 617-960 MHz, 1690-2690 MHz and 3300-4200 MHz can be realized, and especially in miniaturized equipment, the design problem of a multi-frequency-band antenna is solved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an integrated antenna and a communication device. Background Technology

[0002] With the rapid development of wireless communication technology, the antenna design of modern communication equipment faces significant challenges. As mobile terminal devices continue to become smaller, they also need to support more communication frequency bands, creating unique design difficulties in space-constrained small devices. The most prominent challenge is achieving full-band coverage for 5G communication while maintaining device miniaturization.

[0003] In implementing the embodiments of this application, the inventors discovered that the current common practice is to distribute the 5G antenna frequency band across different components within the device. While this method can achieve the necessary frequency coverage, it does not effectively utilize limited available space and significantly increases component costs. This method also increases the complexity of device assembly and may introduce more potential points of failure. Utility Model Content

[0004] The main technical problem solved by the embodiments of this application is to provide an integrated antenna that can achieve full coverage of multiple frequency bands, including 617-960MHz, 1690-2690MHz and 3300-4200MHz. In particular, it solves the design problem of multi-band antennas and reduces production costs in miniaturized devices.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: providing an integrated antenna, including an antenna body and a circuit board. The antenna body includes a first radiating part, a second radiating part, a slot element, and a parasitic element. The first radiating part is disposed at one end of the antenna body, and the second radiating part is disposed between the first radiating part and the slot element. The slot element includes at least one slot disposed along the length direction of the antenna body. The antenna body is disposed on the circuit board, and the parasitic element is disposed on the side of the antenna body close to the circuit board and is electrically connected to the circuit board through at least one grounding point.

[0006] Optionally, the gap includes a first gap segment and a second gap segment, wherein the first gap segment is arranged along the length direction of the antenna body, and the second gap segment intersects with the first gap segment.

[0007] Optionally, the gap is an L-shaped gap.

[0008] Optionally, the antenna body further includes a main body portion, the main body portion having a plurality of through holes, the first radiating portion including a bent portion and a transition portion, the bent portion forming a preset angle with the main body portion, and the transition portion connecting the bent portion and the main body portion.

[0009] Optionally, the second radiating part includes a radiating body and a connecting part, wherein the connecting part connects the radiating body to the body part.

[0010] Optionally, the parasitic unit includes multiple parasitic branches arranged in parallel, and all of the multiple parasitic branches are electrically connected to the circuit board.

[0011] Optionally, there are two parasitic branches, and the two parasitic branches are electrically connected to the circuit board through corresponding grounding points.

[0012] Optionally, the two parasitic branches are arranged in parallel, and the distance between the parasitic branches is fixed.

[0013] Optionally, the antenna body is electrically connected to the circuit board via a feed port, which is located between the parasitic unit and the grounding point.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a communication device including the integrated antenna described in any of the above-mentioned claims.

[0015] This application provides an integrated antenna, including an antenna body and a circuit board. The antenna body includes a first radiating part, a second radiating part, a slotted element, and a parasitic element. The first radiating part is disposed at one end of the antenna body, and the second radiating part is disposed between the first radiating part and the slotted element. The slotted element includes at least one slot disposed along the length direction of the antenna body. The antenna body is disposed on the circuit board, and the parasitic element is disposed on the side of the antenna body close to the circuit board and electrically connected to the circuit board through at least one grounding point. The first radiating part achieves low-frequency band (617-960MHz) coverage, and the second radiating part enhances the bandwidth characteristics of the mid-frequency band (1690-2690MHz) using a planar structure with uniform openings. The slots in the slotted element effectively form a loop antenna structure, which works in conjunction with the parasitic element to achieve high-frequency band (3300-4200MHz) coverage.

[0016] This structural design enables the antenna to maintain an average efficiency of over -7dB across all frequency bands even with a miniaturized motherboard length of only 7cm. This avoids the space waste and cost increases associated with traditional multi-antenna solutions, significantly improving the overall performance of the antenna. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the integrated antenna according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the antenna body according to an embodiment of this application;

[0020] Figure 3 This is another schematic diagram of the antenna body according to an embodiment of this application;

[0021] Figure 4 This is another schematic diagram of the antenna body according to an embodiment of this application;

[0022] Figure 5 This is a parameter diagram of the integrated antenna in an embodiment of this application.

[0023] The reference numerals in the detailed embodiments are as follows: 100, integrated antenna; 10, antenna body; 20, circuit board; 11, first radiating part; 12, second radiating part; 13, slot unit; 14, parasitic unit; 131, slot; 132, first slot segment; 133, second slot segment; 15, main body; 111, bending part; 112, transition part; 121, radiating main body; 122, connecting part; 123, through hole; 141, parasitic branch. Detailed Implementation

[0024] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0026] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0027] Please see Figure 1 and Figure 2 The integrated antenna 100 includes an antenna body 10 and a circuit board 20. The antenna body 10 includes a first radiating portion 11, a second radiating portion 12, a slotted element 13, and a parasitic element 14. The first radiating portion 11 is disposed at one end of the antenna body 10, and the second radiating portion 12 is disposed between the first radiating portion 11 and the slotted element 13. The slotted element 13 includes at least one slot 131 disposed along the length of the antenna body 10. The parasitic element 14 is disposed on the side of the antenna body 10 near the circuit board 20.

[0028] The antenna body 10 is mounted on the circuit board 20, and the parasitic unit 14 is electrically connected to the circuit board 20 through at least one grounding point. Specifically, the antenna body 10 is electrically connected to the circuit board 20 through a feed port, which is located between the parasitic unit 14 and the grounding point. More specifically, the feed port is located on one side of the parasitic unit 14 and forms a stable electrical connection with the circuit board 20 through the grounding point. This arrangement of the feed port effectively improves the impedance matching characteristics of the antenna. During operation, the first radiating part 11, the second radiating part 12, and the slotted unit 13 operate in different frequency bands, and the radiation effect is enhanced through the coupling effect of the parasitic unit 14. The feed port provides radio frequency signals to the antenna body 10, and grounding is achieved through the grounding point, thereby forming a complete antenna radiation system.

[0029] When the integrated antenna 100 is operational, radio frequency signals are input to the antenna body 10 through the feed port. The first radiating element 11 is mainly responsible for signal radiation in the 617-960MHz low-frequency band, the second radiating element 12 is mainly responsible for signal radiation in the 1690-2690MHz mid-frequency band, and the slotted element 13, combined with the parasitic element 14, is mainly responsible for signal radiation in the 3300-4200MHz high-frequency band. The parasitic element 14, through its electrical connection with the circuit board 20, provides a stable ground reference for the entire antenna system.

[0030] In this embodiment, please refer to Figure 3 The slot 131 includes a first slot segment 132 and a second slot segment 133. The first slot segment 132 is disposed along the length direction of the antenna body 10, and the second slot segment 133 intersects with the first slot segment 132. More specifically, the slot 131 is an L-shaped slot, which is formed by the first slot segment 132 and the second slot segment 133.

[0031] In some preferred embodiments, the length of the first slit segment 132 is 2.51 mm, and the length of the second slit segment 133 is 0.89 mm.

[0032] like Figure 3 As shown, the L-shaped slot is specifically configured as follows: the first slot segment 132 extends along the length of the antenna body 10, and the second slot segment 133 is connected to one end of the first slot segment 132 and is perpendicular to the first slot segment 132, forming an L-shaped structure. This L-shaped slot design enables the slot unit 13 to form an equivalent loop antenna structure when the antenna is in operation.

[0033] In this embodiment, the integrated antenna 100 can achieve coverage of multiple frequency bands under miniaturization conditions, and through the design of the slot unit 13 and the arrangement of the parasitic unit 14, the radiation efficiency of the antenna in each frequency band is effectively improved.

[0034] Please continue reading. Figure 4 The antenna body 10 includes a main body 15, and the surface of the main body 15 is uniformly provided with a plurality of through holes 123. The diameter of each of the through holes 123 is 0.5 mm, the spacing between the holes is 1 mm, and they are distributed in a matrix pattern. The design of the through holes 123 can adjust the capacitance characteristics of the antenna and optimize the radiation performance in the mid-frequency band. Figure 5 As shown, the first radiating portion 11 includes a bent portion 111 and a transition portion 112. The bent portion 111 forms a preset angle of 30 degrees with the main body portion 15, which effectively extends the low-frequency operating bandwidth of the antenna. The transition portion 112 connects the bent portion 111 and the main body portion 15, achieving a smooth structural transition. In some preferred embodiments, the length of the transition portion 112 is 3 mm, a length that helps optimize the transmission path of low-frequency signals.

[0035] The second radiating part 12 includes a radiating body 121 and a connecting part 122. The radiating body 121 adopts a rectangular planar structure. In some preferred embodiments, the connecting part 122 connects the radiating body 121 to the main body 15. The connecting part 122 has a width of 1.5 mm, which ensures the mechanical strength and electrical performance of the structure.

[0036] In some preferred embodiments, the main body 15 has planar dimensions of 15 mm × 30 mm, forming a stable antenna base structure. A conductive layer with a thickness of 0.2 mm is formed on the surface of the main body 15 through a metallization process. This thickness ensures good conductivity without significantly increasing the overall weight of the antenna.

[0037] During operation, the bent portion 111, through its special angle design, generates an additional capacitive effect, which plays an important role in improving the matching characteristics of the antenna in the 617-960MHz low-frequency band. The through-hole 123 structure optimizes the bandwidth characteristics in the 1690-2690MHz frequency band by changing the surface current distribution.

[0038] Please see Figure 4 The parasitic unit 14 includes multiple parasitic branches 141 arranged in parallel, specifically two parallel parasitic branches 141. These two parasitic branches 141 are electrically connected to the circuit board 20 through corresponding grounding points.

[0039] In this embodiment, the two parasitic branches 141 are arranged in parallel, with a fixed spacing of 2 mm between them. Each parasitic branch 141 is 4 mm long and 0.5 mm wide. This structural design allows the parasitic branches 141 to generate effective electromagnetic coupling in the 3300-4200MHz frequency band. The grounding points of the two parasitic branches 141 are located at preset positions on the main circuit board 20. The first grounding point is 0.5 mm away from the feed port, and the second grounding point is 1.5 mm away from the first grounding point. This arrangement of grounding points forms a stable grounding structure, effectively improving the impedance characteristics in the high-frequency band.

[0040] Please combine Figure 5In some preferred embodiments, the parasitic branch 141 is fabricated using a metallization process, with a conductive layer plated on its surface. The thickness of the conductive layer is 0.2 mm. The parasitic branch 141 and the main circuit board 20 are reliably electrically connected via a soldering process, with the solder joint diameter controlled at 0.3 mm to ensure good conductivity. During operation, the two parasitic branches 141, through electromagnetic coupling, form a cooperative radiation pattern with the slotted element 13. When the antenna operates in the 3300-4200MHz frequency band, the fixed spacing between the parasitic branches 141 generates a specific coupling effect, which helps to extend the high-frequency operating bandwidth of the antenna.

[0041] In this embodiment, the grounding structure of the parasitic unit 14 has a significant impact on the high-frequency performance of the antenna. Two precisely positioned grounding points form a stable reference ground, effectively reducing high-frequency losses. Simultaneously, the relative positional relationship between the grounding points and the feed port plays a crucial role in achieving good impedance matching.

[0042] In this embodiment, by optimizing the structural parameters of the parasitic element 14, the antenna performance in the high-frequency band is further improved. Experimental results show that in the 3300-4200MHz frequency band, the antenna's radiation efficiency reaches above -4dB, meeting the requirements of 5G communication systems. Simultaneously, the presence of the parasitic element 14 also complements the performance in the low-frequency and mid-frequency bands, resulting in a more balanced frequency band coverage for the entire antenna system.

[0043] This application provides an integrated antenna 100, including an antenna body 10 and a circuit board 20. The antenna body 10 includes a first radiating part 11, a second radiating part 12, a slot unit 13, and a parasitic unit 14. The first radiating part 11 is disposed at one end of the antenna body 10, and the second radiating part 12 is disposed between the first radiating part 11 and the slot unit 13. The slot unit 13 includes at least one slot disposed along the length direction of the antenna body 10. The antenna body 10 is disposed on the circuit board 20, and the parasitic unit 14... Parasitic unit 14 is disposed on the side of the antenna body 10 near the circuit board 20 and is electrically connected to the circuit board 20 through at least one grounding point. The first radiating part 11 achieves low-frequency band (617-960MHz) coverage. The second radiating part 12 uses a planar structure with uniform openings to enhance the bandwidth characteristics of the mid-frequency band (1690-2690MHz). The slots in the slot unit 13 are equivalent to forming a loop antenna structure, which works in conjunction with the parasitic unit 14 to achieve high-frequency band (3300-4200MHz) coverage.

[0044] This structural design enables the antenna to maintain an average efficiency of over -7dB across all frequency bands even with a miniaturized motherboard length of only 7cm. This avoids the space waste and cost increases associated with traditional multi-antenna solutions, significantly improving the overall performance of the antenna.

[0045] This application also provides an embodiment of a communication device, which includes the integrated antenna 100 described above. For the specific structure and function of the floor scrubber, please refer to the above embodiments, which will not be repeated here. The above descriptions are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the description and drawings of this application, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An integrated antenna, characterized by, include: The antenna body includes a first radiating part, a second radiating part, a slot unit, and a parasitic unit. The first radiating part is disposed at one end of the antenna body, and the second radiating part is disposed between the first radiating part and the slot unit. The slot unit includes at least one slot disposed along the length direction of the antenna body. The circuit board has the antenna body disposed on the circuit board, and the parasitic unit is disposed on the side of the antenna body close to the circuit board and is electrically connected to the circuit board through at least one grounding point.

2. The integrated antenna according to claim 1, characterized in that, The gap includes a first gap segment and a second gap segment. The first gap segment is arranged along the length direction of the antenna body, and the second gap segment intersects with the first gap segment.

3. The integrated antenna according to claim 1, characterized in that, The gap is an L-shaped gap.

4. The integrated antenna according to claim 1, characterized in that, The antenna body also includes a main body portion, the surface of which is uniformly provided with a plurality of through holes. The first radiating portion includes a bending portion and a transition portion. The bending portion forms a preset angle with the main body portion, and the transition portion connects the bending portion and the main body portion.

5. The integrated antenna according to claim 4, characterized in that, The second radiating part includes a radiating body and a connecting part, wherein the connecting part connects the radiating body to the body part.

6. The integrated antenna according to claim 1, characterized in that, The parasitic unit includes multiple parasitic branches arranged in parallel, and all of the multiple parasitic branches are electrically connected to the main circuit board.

7. The integrated antenna according to claim 6, characterized in that, The number of parasitic branches is two, and the two parasitic branches are electrically connected to the circuit board through the corresponding grounding point.

8. The integrated antenna according to claim 7, characterized in that, The two parasitic branches are arranged in parallel, and the distance between the parasitic branches is fixed.

9. The integrated antenna according to claim 1, characterized in that, The antenna body is electrically connected to the main circuit board via a feed port, which is located between the parasitic unit and the grounding point.

10. A communication device, characterized by Including the integrated antenna as described in any one of claims 1-9.

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