Side feed type WIFI directional radiation antenna

Abstract

The utility model discloses a side feed type WIFI directional radiation antenna, comprising a PCB floor, a dielectric block and a radiation patch, the dielectric block is installed on the PCB floor, the radiation patch is attached to the dielectric block, and copper is laid around the dielectric block on the PCB floor. According to the side-fed WIFI directional radiation antenna provided by the utility model, the radiation direction of the antenna is obviously deviated to the upper part under the action of laying copper on the PCB floor, and when the side-fed WIFI directional radiation antenna is applied, one side of the bottom of the PCB floor leans against a wall or the ground, so that the radiation direction faces a main activity area of a user, and the user experience can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a side-fed WIFI directional radiation antenna. Background Art

[0002] With the advancement of communication technology, Wi-Fi is becoming increasingly common and indispensable in our lives. Existing Wi-Fi antennas generally radiate signals in all directions. However, in many scenarios, users often place Wi-Fi devices in corners or on walls due to concerns about power connections and space requirements. As a result, existing Wi-Fi antennas lack directional radiation, resulting in poor radiation efficiency and a poor user experience.

[0003] Therefore, the prior art needs to be improved. Utility Model Content

[0004] In view of this, the utility model provides a side-fed WIFI directional radiation antenna, which is used to solve the problem that the existing WIFI antenna has no directional radiation effect, poor radiation utilization rate and poor user experience.

[0005] To achieve one, part, or all of the above-mentioned purposes or other purposes, the present invention proposes a side-fed Wi-Fi directional radiation antenna, comprising a PCB floor, a dielectric block, and a radiation patch, wherein the dielectric block is mounted on the PCB floor, the radiation patch is attached to the dielectric block, and copper is laid on the PCB floor around the dielectric block.

[0006] Preferably, the dielectric block is a ceramic dielectric.

[0007] Preferably, the radiation patch includes a front radiation patch and a side feeding patch, the front radiation patch is attached to the upper surface of the dielectric block, the side feeding patch is attached to the side of the dielectric block, and the side feeding patch is connected to the front radiation patch at the edge of the dielectric block.

[0008] Preferably, the front radiation patch includes a radiation portion and a connection portion, the radiation portion is in an inverted concave shape; one end of the connection portion is connected to the radiation portion at the middle position of the bottom of the groove of the radiation portion, and the other end is connected to the side feeding patch.

[0009] Preferably, the length of the radiation portion is L1, 25 mm ≤ L1 ≤ 27 mm, the width of the radiation portion is W1, 20 mm ≤ W1 ≤ 22 mm, and the groove of the radiation portion is formed on the long side thereof.

[0010] More preferably, L1 = 26 mm, W1 = 20.8 mm.

[0011] Preferably, the width of the connecting portion and the side feeding patch is W2, 1.8mm≤W2≤2.2mm; the depth of the groove of the radiating portion and the length of the connecting portion are both L2, 6mm≤L2≤8mm.

[0012] More preferably, W2=2 mm, L2=7 mm.

[0013] Preferably, the groove width of the radiation portion is W3, 5.8 mm ≤ W3 ≤ 6.2 mm.

[0014] More preferably, W3=6 mm.

[0015] Preferably, the thickness of the dielectric block is H1, H1=6 mm, and the length of the side-feed patch is L3, 4.5 mm≤L3≤5.5 mm.

[0016] More preferably, L3=5.02 mm, a feeding connector is provided on the side of the dielectric block, and the feeding connector is located at the lower end of the side feeding patch.

[0017] Preferably, the feed connector is a flange SMA connector or a five-prong SMA connector.

[0018] Preferably, the dielectric block is square, and the width of the dielectric block is W4, 28 mm ≤ W4 ≤ 32 mm.

[0019] More preferably, W4=30 mm.

[0020] Preferably, the copper layer width on the PCB floor is W5, 4mm≤W5≤6mm.

[0021] More preferably, W5=5 mm.

[0022] The implementation of the present invention will have the following beneficial effects:

[0023] 1. Due to the copper layer on the PCB floor, the antenna's radiation direction is significantly biased upward. When used, by placing the bottom side of the PCB floor against a wall or on the ground, the radiation direction faces the user's main activity area, which can significantly improve the user experience.

[0024] 2. The side-fed feeding structure design reduces the interference of the feed line on the antenna radiation and is conducive to the wiring of the antenna structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] in:

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of the top view of an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0030] Figure 4 A return loss curve diagram of a side-fed WIFI directional radiation antenna provided in a specific embodiment of the present utility model;

[0031] Figure 5 This is an efficiency curve diagram of a side-fed WIFI directional radiation antenna provided by a specific embodiment of the present utility model;

[0032] Figure 6 A graph showing the gain curve of a side-fed WIFI directional radiation antenna according to a specific embodiment of the present invention;

[0033] Figure 7 This is the radiation pattern of the side-fed WIFI directional radiation antenna provided in a specific embodiment of the present invention.

[0034] The description of the reference numerals is as follows: 1, PCB floor; 2, dielectric block; 3, radiation patch; 31, front radiation patch; 311, radiation part; 312, connection part; 32, side feeding patch. DETAILED DESCRIPTION

[0035] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0037] It is understood that the singular forms "a", "an", and "the" may also include plural forms, unless the context clearly indicates otherwise. It is also understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0038] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only. In the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle" and the like is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the present utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to express other meanings. For example, the term "upper" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific circumstances.

[0039] Furthermore, the terms "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0040] Reference Figure 1 、 Figure 2 、 Figure 3 An embodiment of the present invention provides a side-fed WIFI directional radiation antenna, comprising a PCB floor 1, a dielectric block 2, and a radiation patch 3. The dielectric block 2 is mounted on the PCB floor 1, the radiation patch 3 is attached to the dielectric block 2, and copper is laid around the dielectric block 2 on the PCB floor 1.

[0041] In some optional embodiments, the dielectric block 2 is a ceramic dielectric.

[0042] In some optional embodiments, such as Figures 1 to 3 As shown, the radiation patch 3 includes a front radiation patch 31 and a side feeding patch 32. The front radiation patch 31 is attached to the upper surface of the dielectric block 2, and the side feeding patch 32 is attached to the side of the dielectric block 2. The side feeding patch 32 is connected to the front radiation patch 31 at the edge of the dielectric block 2.

[0043] More specifically, the front radiation patch 31 includes a radiation portion 311 and a connecting portion 312, and the radiation portion 311 is in an inverted concave shape; one end of the connecting portion 312 is connected to the radiation portion 311 at the middle position of the bottom of the groove of the radiation portion 311, and the other end is connected to the side feeding patch 32.

[0044] In some optional embodiments, such as Figures 1 to 3 As shown, the length of the radiation portion 311 is L1, and the width of the radiation portion 311 is W1, wherein: 25mm≤L1≤27mm, 20mm≤W1≤22mm. More specifically, in some preferred embodiments, L1=26mm, W1=20.8mm.

[0045] In some optional embodiments, such as Figures 1 to 3 As shown, the width of the connecting portion 312 and the side-feed patch 32 is W2, 1.8mm≤W2≤2.2mm; the depth of the groove of the radiating portion 311 and the length of the connecting portion 312 are L2, 6mm≤L2≤8mm. More specifically, in some preferred embodiments, W2=2mm and L2=7mm.

[0046] In some optional embodiments, such as Figure 2 As shown, the width of the groove on the radiation portion 311 is W3, 5.8 mm ≤ W3 ≤ 6.2 mm. More specifically, in some preferred embodiments, W3 = 6 mm.

[0047] In some optional embodiments, such as Figure 1 and Figure 3 As shown, the thickness of the dielectric block 2 is H1, H1 = 6 mm, and the length of the side feed patch 32 is L3, 4.5 mm ≤ L3 ≤ 5.5 mm. More specifically, in some preferred embodiments, L3 = 5.02 mm. A feed connector is provided on the side of the dielectric block 2, and the feed connector is located at the lower end of the side feed patch 32.

[0048] In some more preferred embodiments, the feeding connector is a flange SMA connector or a five-prong SMA connector, which is used to connect to a 50 ohm coaxial cable to achieve antenna feeding.

[0049] In some optional embodiments, such as Figure 1 and Figure 2As shown, the dielectric block 2 is square, and the width of the dielectric block 2 is W4, 28 mm ≤ W4 ≤ 32 mm. In some preferred embodiments, W4 = 30 mm.

[0050] In some optional embodiments, such as Figure 2 As shown, the copper width on the PCB floor 1 is W5, 4mm≤W5≤6mm. In some preferred embodiments, W5=5mm.

[0051] Figure 4 The return loss curve of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the utility model is shown in FIG. Figure 4 It can be seen that the return loss of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the present invention is less than -8dB in the 2.4G-2.5GHz frequency band.

[0052] Figure 5 The efficiency curve of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the utility model is shown in FIG. Figure 5 It can be seen that the side-fed WIFI directional radiation antenna provided by the specific embodiment of the present invention has an efficiency greater than 80% in the 2.4G-2.5GHz frequency band, which fully meets the use requirements in the industry.

[0053] Figure 6 The gain curve of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the present utility model is shown in FIG. Figure 6 It can be seen that the maximum gain of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the present invention reaches 5.5dbi in the 2.4G-2.5GHz frequency band.

[0054] Figure 7 The radiation direction line diagram of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the utility model is Figure 7 It can be seen that under the effect of the copper plating of the PCB floor 1, the radiation direction of the side-fed WIFI directional radiation antenna provided by the specific embodiment of the utility model is obviously biased upward. When used, by placing the bottom side of the PCB floor 1 against the wall or the ground, the user experience can be significantly improved.

[0055] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A side-fed WIFI directional radiation antenna, characterized by: The invention comprises a PCB floor, a dielectric block and a radiation patch. The dielectric block is installed on the PCB floor, the radiation patch is attached to the dielectric block, and copper is laid around the dielectric block on the PCB floor.

2. The side-fed WIFI directional radiation antenna according to claim 1, characterized in that: The dielectric block is a ceramic dielectric.

3. The side-fed WIFI directional radiation antenna according to claim 1 or 2, characterized in that: The radiation patch includes a front radiation patch and a side feeding patch. The front radiation patch is attached to the upper surface of the dielectric block, the side feeding patch is attached to the side of the dielectric block, and the side feeding patch is connected to the front radiation patch at the edge of the dielectric block.

4. The side-fed WIFI directional radiation antenna according to claim 3, characterized in that: The front radiation patch includes a radiation portion and a connection portion, the radiation portion is in an inverted concave shape; one end of the connection portion is connected to the radiation portion at the middle position of the bottom of the groove of the radiation portion, and the other end is connected to the side feeding patch.

5. The side-fed WIFI directional radiation antenna according to claim 4, characterized in that: The length of the radiation portion is L1, 25 mm ≤ L1 ≤ 27 mm, and the width of the radiation portion is W1, 20 mm ≤ W1 ≤ 22 mm.

6. The side-fed WIFI directional radiation antenna according to claim 5, characterized in that: The width of the connecting portion and the side feeding patch is W2, 1.8mm≤W2≤2.2mm; the depth of the groove of the radiating portion and the length of the connecting portion are both L2, 6mm≤L2≤8mm.

7. The side-fed WIFI directional radiation antenna according to claim 6, characterized in that: The width of the groove of the radiation portion is W3, 5.8 mm ≤ W3 ≤ 6.2 mm.

8. The side-fed WIFI directional radiation antenna according to claim 3, characterized in that: The thickness of the dielectric block is H1, H1=6 mm, and the length of the side feeding patch is L3, 4.5 mm≤L3≤5.5 mm.

9. The side-fed WIFI directional radiation antenna according to claim 1 or 8, characterized in that: The dielectric block is square, and the width of the dielectric block is W4, 28 mm ≤ W4 ≤ 32 mm.

10. The side-fed WIFI directional radiation antenna according to claim 9, characterized in that: The copper layer on the PCB floor has a width of W5, 4mm≤W5≤6mm.

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