Antenna structure with coupling sheet and interphone

Abstract

An antenna structure with a coupling piece and an interphone relate to the technical field of antennas, the antenna structure comprises an outer mold, an inner mold arranged in the outer mold, a spring and an SMA joint, one end of the SMA joint extends into the outer mold and is connected with the spring, the inner mold wraps the joint of the SMA joint and the spring, and the coupling piece used for being coupled with the spring is attached to the surface of the inner mold. According to the technical scheme, the internal mold wraps the joint of the SMA connector and the spring, and the coupling sheet used for being coupled with the spring is attached to the surface of the internal mold, so that the coupling distance is formed between the coupling sheet and the spring, the bandwidth of the working frequency band of the antenna is expanded, the head-tail channel communication effect is improved, the performance of the antenna is improved, and the service life of the antenna is prolonged. The interphone can realize U full-band frequency communication, and is compact in structure, high in practicability and beneficial to market promotion.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of antenna, concretely relates to an antenna structure with coupling sheet and interphone. BACKGROUND

[0002] The interphone mainly relies on radio signal to carry out conversation, it does not need to borrow network base station to carry out connection, only if the frequency of two or more interphones is set to be same, normal conversation can be carried out. For example, if the user is an outdoor lover, the interphone can be used to carry out conversation when the partner goes together, avoids losing contact because of signal problem, leads to appearing dangerous condition and cannot be rescued in time. In this respect, the interphone cannot be replaced by the mobile phone to some extent. For the occupation needing high cooperation and contact, the conversation efficiency of the interphone is much higher than the mobile phone, and the speech of the opposite party can be conveyed through the same frequency in time, the delay is very low, can improve the contact and command scheduling efficiency.

[0003] But in UHF frequency band, the interphone is mostly U high section (450-470MHZ) and U low section (400-430MHZ), and a few is U full section (400-470MHZ), the antenna frequency bandwidth of U full section demand is relatively wide, and the communication effect of first and last channel is usually poor, that is to say, the antenna performance of the existing interphone is basically difficult to meet U full section frequency communication. SUMMARY

[0004] The utility model discloses a kind of antenna structure with coupling sheet and interphone, to solve the problem that the antenna performance of existing interphone is difficult to meet U full section frequency communication.

[0005] The utility model provides a kind of antenna structure with coupling sheet, the technical scheme adopted is: a kind of antenna structure with coupling sheet, including outer mode, the inner mode and spring and SMA connector being set in outer mode, the one end of SMA connector enters outer mode and is connected with spring, the inner mode covers the connecting place of SMA connector and spring, the surface of the inner mode is attached with the coupling sheet for being coupled with spring

[0006] Optionally, the coupling interval of the coupling sheet and spring is 0.5-1mm.

[0007] Optionally, the inner mode includes first cylinder and second cylinder, the connecting place of the SMA connector and spring is located in first cylinder, and the coupling sheet is attached to the outer side surface of first cylinder.

[0008] Optionally, the coupling sheet is attached to one side of first cylinder.

[0009] Optionally, the coupling sheet is rectangular after unfolding, and the length of its length and width is 10-15mm.

[0010] Optionally, the spring is connected with the SMA joint through a core wire.

[0011] Optionally, one end of the spring abuts against the top of the inner side of the outer mold, and the other end extends to the SMA joint along the length direction of the outer mold and is connected with the SMA joint.

[0012] Optionally, the outer mold is in a long cylindrical shape, the diameter of the outer mold gradually increases from top to bottom, and the SMA joint is located at the large diameter end of the outer mold.

[0013] Optionally, the material of the outer mold is TPU, and the material of the inner mold is PA.

[0014] The utility model also provides a speakerphone, including speakerphone body and the antenna structure with the coupling sheet as described above.

[0015] After adopting the technical scheme, the utility model has the beneficial effects that:

[0016] The application expands the bandwidth of the antenna operating frequency band, improves the first and last channel communication effect, and further improves the performance of the antenna, so that the speakerphone can realize U full segment frequency communication. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 It is the overall structure schematic diagram of this embodiment;

[0019] Figure 2 It is the schematic diagram for embodying the position relation between the coupling sheet and the inner mold in this embodiment;

[0020] Figure 3 It is the explosion view after removing the outer mold;

[0021] Figure 4 It is the antenna standing wave ratio diagram without adding the coupling sheet;

[0022] Figure 5 It is the darkroom test data diagram of the antenna efficiency without adding the coupling sheet;

[0023] Figure 6is the back antenna VSWR graph after adding the coupling patch;

[0024] Figure 7 is the darkroom test data graph of the back antenna efficiency after adding the coupling patch.

[0025] Explanation of reference signs: 10, outer mold; 20, inner mold; 21, first column; 22, second column; 30, spring; 40, SMA joint; 50, coupling patch. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Figures 1-7 It is obvious that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0027] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0028] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text is that it includes three parallel schemes, for example, “A and / or B” includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0029] The present embodiment relates to an antenna structure with a coupling patch, referring to Figures 1-3 , comprising an outer mold 10, an inner mold 20 and a spring 30 and an SMA joint 40 arranged in the outer mold 10, wherein one end of the SMA is located outside one end of the outer mold 10, the other end of the SMA extends into the outer mold 10 and is connected with the spring 30, the inner mold 20 is wrapped at the connection between the SMA joint 40 and the spring 30, and the surface of the inner mold 20 is attached with a coupling patch 50 for coupling with the spring 30.

[0030] It can be understood that by covering the inner mold 20 with the SMA joint 40 and the connection of the spring 30, and adhering the coupling sheet 50 for coupling with the spring 30 on the surface of the inner mold 20, a coupling distance is formed between the coupling sheet 50 and the spring 30, at this time, the coupling sheet 50 and the spring 30 are coupled by inductive coupling, thereby widening the bandwidth of the working frequency band of the antenna, improving the communication effect of the first and last channels, and further improving the performance of the antenna.

[0031] It should be noted that the bandwidth of the working frequency band of the antenna is the bandwidth of the antenna, which refers to the frequency range in which the antenna can normally work and radiate or receive electromagnetic wave signals, therefore, increasing the coupling sheet 50 to widen the bandwidth of the antenna can effectively improve the performance of the antenna, thereby meeting the U full segment communication demand.

[0032] Further, the coupling distance between the coupling sheet 50 and the spring 30 is 0.5-1mm. Controlling the coupling distance between the coupling sheet 50 and the spring 30 to be between 0.5-1mm makes the performance of the antenna optimal at this time, thereby meeting the U full segment frequency communication demand.

[0033] Further, the inner mold 20 includes a first column 21 and a second column 22, and the connection of the SMA joint with the spring 30 is located in the first column 21, and the coupling sheet 50 is adhered to the outer surface of the first column 21.

[0034] Further, the coupling sheet 50 is adhered to one side of the first column 21. The coupling sheet 50 in the embodiment does not completely cover the first column 21, but is adhered to one side of the first column 21, thereby avoiding the case that completely wrapping the first column 21 leads to the performance of the antenna.

[0035] Further, referring to Figure 2 and Figure 3 , the coupling sheet 50 is a rectangle after being unfolded, and the length of the length and the width is 10-15mm.

[0036] In other embodiments, the coupling sheet 50 can also be a square or other shape after being unfolded, and in the actual production process, the area of the coupling sheet 50 can be adjusted according to the size of the coupling distance between the coupling sheet 50 and the spring 30, the smaller the coupling distance, the area of the coupling sheet 50 can be reduced at this time (i.e. the length and the width of the coupling sheet 50 are reduced correspondingly), on the contrary, the larger the coupling distance, the area of the coupling sheet 50 needs to be increased to ensure the optimal performance of the antenna.

[0037] Further, the spring 30 and the SMA joint 40 are connected by a core wire.

[0038] The spring 30 and the SMA joint 40 are connected by a core wire, that is, connected by one or more core wires, and the connection is stable, which ensures the overall stability of the antenna performance.

[0039] Further, one end of the spring 30 is connected to the top of the inner side of the outer mold 10, and the other end extends along the length direction of the outer mold 10 to the SMA joint 40 and is connected to the SMA joint 40.

[0040] It can be understood that by adopting the above arrangement, the length of the spring 30 is adapted to the length of the outer mold 10, thereby further improving the performance of the antenna.

[0041] Further, referring to Figure 2 and Figure 3 , the outer mold 10 is arranged in a long cylindrical shape with a gradually increasing diameter from top to bottom, and the SMA joint 40 is located at the large diameter end of the outer mold 10.

[0042] It can be understood that the outer mold 10 is designed in a long cylindrical shape, which has the advantages of being able to effectively resonate with a specific wavelength, optimizing radiation efficiency and directivity, and achieving impedance matching between the antenna and the device. The SMA joint 40 is arranged at the large diameter end of the outer mold 10 to facilitate the assembly between the antenna and the device.

[0043] Further, the material of the outer mold 10 is TPU, and the material of the inner mold 20 is PA. The TPU material of the outer mold 10 and the PA material of the inner mold 20 have the least impact on the antenna performance, that is, reducing the negative impact of the outer mold 10 and the inner mold 20 on the antenna performance, and improving the antenna performance.

[0044] The embodiment also provides a speakerphone, which includes a speakerphone body and an antenna structure with a coupling sheet 50 as described above.

[0045] In addition, referring to Figures 4-7 , the performance of the antenna structure without the coupling sheet and the antenna structure with the added coupling sheet is tested.

[0046] Referring to Figure 4 and Figure 6 , it can be seen that the bandwidth of the antenna frequency is widened after the coupling sheet is added, and the performance of the antenna is improved in the U full segment (400-470 MHZ).

[0047] Referring to Figure 5 and Figure 7 , the antenna structure without the coupling sheet and the antenna structure with the added coupling sheet are tested in a darkroom environment, and the antenna efficiency of the antenna structure with the added coupling sheet is significantly improved in the U full segment.

[0048] The utility model discloses a working principle is roughly as follows: through the coupling piece 50 of sticking on the inner mode 20, and through the size of adjusting coupling piece 50 and the coupling interval between coupling piece 50 and spring 30 to promote the antenna performance to meet U full section frequency communication.

[0049] The above is only used to explain the technical scheme of the utility model and is not limited, and other modifications or equivalent replacements of the technical scheme of the utility model made by the ordinary skill in the art should be covered in the claim range of the utility model, as long as not departing from the spirit and range of the technical scheme of the utility model.

Claims

1. An antenna structure having a coupling patch, characterized by The antenna structure comprises an outer mold (10), an inner mold (20) and a spring (30) arranged in the outer mold (10), and an SMA joint (40), one end of which extends into the outer mold (10) and is connected with the spring (30), the inner mold (20) is wrapped around the connection between the SMA joint (40) and the spring (30), and a coupling sheet (50) for coupling with the spring (30) is attached to the surface of the inner mold (20).

2. An antenna structure having a coupling patch as claimed in claim 1, characterized in that The coupling distance between the coupling sheet (50) and the spring (30) is 0.5-1mm.

3. An antenna structure having a coupling patch according to claim 2, wherein, The inner mold (20) comprises a first cylinder (21) and a second cylinder (22), the connection between the SMA joint (40) and the spring (30) is located in the first cylinder (21), and the coupling sheet (50) is attached to the outer surface of the first cylinder (21).

4. An antenna structure having a coupling patch as claimed in claim 3, characterized in that The coupling sheet (50) is attached to one side of the first cylinder (21).

5. An antenna structure having a coupling patch as claimed in claim 2, characterized in that The coupling sheet (50) is rectangular after being unfolded, and the length of the long side and the width are both 10-15mm.

6. The antenna structure with a coupling patch according to claim 1, wherein, The spring (30) is connected with the SMA joint (40) through a core wire.

7. The antenna structure with a coupling patch according to claim 1, wherein, One end of the spring (30) abuts against the top of the inner side of the outer mold (10), and the other end extends to the SMA joint (40) along the length direction of the outer mold (10) and is connected with the SMA joint (40).

8. The antenna structure with a coupling patch of claim 1, wherein, The outer mold (10) is in the shape of a long cylinder with the diameter gradually increasing from top to bottom, and the SMA joint (40) is located at the large-diameter end of the outer mold (10).

9. The antenna structure with a coupling patch of claim 1, wherein, The material of the outer mold (10) is TPU, and the material of the inner mold (20) is PA.

10. A speakerphone, characterized by The antenna structure is arranged in a speakerphone body. The antenna structure is arranged in a speakerphone body.

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