Antenna and electronic equipment

Abstract

The embodiment of the utility model relates to the technical field of antennas, and particularly discloses an antenna and electronic equipment, comprising a first metal layer which comprises a feeder line part and a radiation part which are connected; the second metal layer is provided with a first gap, and the first gap is a C-shaped gap; the first metal layer is arranged on the first surface of the dielectric layer, the second metal layer is arranged on the second surface of the dielectric layer, and in the direction from the first surface to the second surface of the dielectric layer, the projection of the feeder line part is at least partially overlapped with the C-shaped gap. Through the above mode, the embodiment of the utility model enables the broadband antenna to have the in-band notch, and the in-band interference of the broadband antenna is effectively suppressed.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of antennas, and in particular to an antenna and electronic equipment. Background Art

[0002] Broadband antennas are widely used in modern communication systems due to their advantages such as high transmission rate, small size, and high signal transmission quality, and have also attracted the attention of relevant experts, scholars, and engineers in this field.

[0003] The inventor of the present utility model discovered during the process of realizing the present utility model that currently, the miniaturized and high-performance broadband antennas on the market usually do not have in-band notches and cannot effectively suppress in-band interference, which greatly affects their use in modern miniaturized wireless communication systems. Utility Model Content

[0004] The main technical problem solved by the embodiments of the utility model is to provide an antenna and an electronic device, which can enable a broadband antenna to have an in-band notch, thereby effectively suppressing in-band interference.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an antenna, including a first metal layer, a second metal layer and a dielectric layer, the first metal layer including a feed line part and a radiation part, the feed line part and the radiation part are connected; the second metal layer is provided with a first gap, the first gap is a C-shaped gap; the first metal layer is arranged on the first surface of the dielectric layer, the second metal layer is arranged on the second surface of the dielectric layer, and along the direction from the first surface to the second surface of the dielectric layer, the projection of the feed line part at least partially overlaps with the C-shaped gap.

[0006] Optionally, the first gap includes a first horizontal gap, a second horizontal gap and a first vertical gap, the first horizontal gap, the first vertical gap and the second horizontal gap are connected in sequence, the first horizontal gap and the second horizontal gap are parallel, and the first horizontal gap and the second horizontal gap are both perpendicular to the first vertical gap.

[0007] Optionally, the second metal layer further includes a second gap, and the second gap is an L-shaped gap.

[0008] Optionally, the second slot includes a third horizontal slot and a second vertical slot that are connected, the third horizontal slot is perpendicular to the second vertical slot, and the third horizontal slot is parallel to the feeder portion.

[0009] Optionally, the third horizontal gap is located at a junction of two adjacent edge lines of the bottom surface of the second metal layer.

[0010] Optionally, the projection of the radiation portion on the dielectric layer is a rectangle.

[0011] Optionally, the feed line portion is a microstrip feed line with a resistance of 50 ohms.

[0012] Optionally, a center line of the feed line portion coincides with a center line of the radiation portion.

[0013] Optionally, the feed line portion is located at the center of an intersection of the first surface of the dielectric layer and a side edge of the dielectric layer.

[0014] In order to solve the above technical problem, another technical solution adopted by the present invention is: to provide an electronic device, including the above antenna.

[0015] The beneficial effect of the embodiment of the utility model is as follows: Different from the prior art, the embodiment of the utility model provides an antenna including a first metal layer, including a feeder part and a radiation part, the feeder part and the radiation part are connected; a second metal layer, provided with a first gap, the first gap is a C-shaped gap; a dielectric layer, the first metal layer is arranged on the top surface of the dielectric layer, the second metal layer is arranged on the bottom surface of the dielectric layer, and the feeder part corresponds to the C-shaped gap. In the above manner, the embodiment of the utility model solves the problem that the existing broadband antenna does not contain in-band notches and cannot effectively suppress in-band interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of an exploded structure of an antenna provided by an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of an assembly structure of an antenna provided by an embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of a three-dimensional structure of a second metal layer provided by an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of a side view of a broadband antenna provided by an embodiment of the utility model;

[0021] Figure 5 It is a schematic diagram of a top view of a broadband antenna provided by an embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of an upward viewing angle of a broadband antenna provided by an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of a broadband antenna provided by an embodiment of the utility model, with the top view being marked;

[0024] Figure 8 It is a schematic diagram of a broadband antenna provided by an embodiment of the utility model, with the upward viewing angle marked;

[0025] Fig. 9 The utility model provides a broadband antenna to change L S1 Simulation result diagram of reflection coefficient of parameters;

[0026] Fig.10 The utility model provides a broadband antenna to change L S2 Simulation result diagram of reflection coefficient of parameters;

[0027] Fig.11 The utility model provides a broadband antenna to change L S3 Simulation result diagram of reflection coefficient of parameters;

[0028] Fig.12 The utility model provides a broadband antenna to change W S2 Simulation result diagram of reflection coefficient of parameters;

[0029] Fig.13 The utility model provides a broadband antenna to change W S3 Simulation result diagram of reflection coefficient of parameters;

[0030] Fig.14 It is a reflection coefficient simulation result diagram of a broadband antenna preferred parameter provided by an embodiment of the utility model;

[0031] Fig.15 It is a simulation result diagram of gain and radiation efficiency of a broadband antenna preferred parameters provided by an embodiment of the utility model;

[0032] Fig.16 It is a simulated radiation pattern of a broadband antenna provided by an embodiment of the utility model at 4.0 GHz;

[0033] Fig.17 It is a simulated radiation pattern of a broadband antenna provided by an embodiment of the utility model at 6.0 GHz;

[0034] Fig.18 It is a simulated radiation pattern of a broadband antenna at 8.0 GHz provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with 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 there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0037] See also Figure 1 , Figure 2 and Figure 3 The antenna 1000 includes a first metal layer 1, a second metal layer 2 and a dielectric layer 3, wherein the first metal layer 1, the dielectric layer 3 and the second metal layer 2 are stacked in sequence.

[0038] For the first metal layer 1 mentioned above, please refer to Figure 1 The first metal layer 1 includes a feed line portion 11 and a radiation portion 12, and the feed line portion 11 and the radiation portion 12 are connected.

[0039] In some embodiments, the projection of the radiation portion 12 on the dielectric layer 3 is a rectangle.

[0040] In some embodiments, the center line of the feeder portion 11 may or may not coincide with the center line of the radiation portion 12 .

[0041] It can be understood that in some embodiments, the first metal layer 1 is called a radiation layer according to its function, and the corresponding radiation portion 12 is a rectangular radiation patch, and the feed line portion 11 is a microstrip feed line.

[0042] In some embodiments, preferably, the resistance of the microstrip feed line is 50 ohms.

[0043] For the second metal layer 2 mentioned above, please refer to Figure 3The second metal layer 2 is provided with a first gap 21 for introducing a separately controllable notch. Specifically, the first gap 21 is a C-shaped gap, wherein the first gap 21 includes a first horizontal gap 211, a second horizontal gap 212 and a first vertical gap 213, the first horizontal gap 211, the first vertical gap 213 and the second horizontal gap 212 are connected in sequence, and the first horizontal gap 211 and the second horizontal gap 212 are parallel, and the first horizontal gap 211 and the second horizontal gap 212 are both perpendicular to the first vertical gap 213.

[0044] In some embodiments, Figure 3 As shown, the second metal layer 2 also includes a second slot 22 for increasing the bandwidth of the antenna 1000 and optimizing the matching, and can also convert the directional antenna 1000 into an omnidirectional antenna 1000. Specifically, the second slot 22 is an L-shaped slot, wherein the second slot 22 includes a third horizontal slot 221 and a second vertical slot 222 that are connected, the third horizontal slot 221 is perpendicular to the second vertical slot 222, and the third horizontal slot 221 is parallel to the feed line portion 11, and the third horizontal slot 221 is located at the junction of two adjacent side lines of the bottom surface of the second metal layer 2.

[0045] It can be understood that in some embodiments, the second metal layer 2 is also called a defective layer according to its function.

[0046] For the dielectric layer 3 mentioned above, please refer to Figure 1 The first metal layer 1 is arranged on the first surface 31 of the dielectric layer 3, the second metal layer 2 is arranged on the second surface 32 of the dielectric layer 3, and along the direction from the first surface 31 to the second surface 32 of the dielectric layer 3, the projection of the feed line portion 11 at least partially overlaps with the C-shaped gap.

[0047] In some embodiments, the feed line portion 11 is located at the center of an intersection of the first surface 31 of the dielectric layer 3 and a side edge of the dielectric layer 3 .

[0048] In the embodiment of the utility model, the antenna 1000 includes a first metal layer 1, a second metal layer 2 and a dielectric layer 3, the first metal layer 1 includes a feeder portion 11 and a radiation portion 12, the feeder portion 11 and the radiation portion 12 are connected; the second metal layer 2 is provided with a first slot 21, the first slot 21 is a C-shaped slot; the first metal layer 1 is provided on the first surface 31 of the dielectric layer 3, the second metal layer 2 is provided on the second surface 32 of the dielectric layer 3, and the projection of the feeder portion 11 at least partially overlaps with the C-shaped slot along the direction from the first surface 31 to the second surface 32 of the dielectric layer 3. In the above manner, the presence of the first slot 21 enables the antenna 1000 to introduce a separately controllable notch, thereby obtaining an omnidirectional antenna with a wide bandwidth that can effectively suppress in-band interference.

[0049] In order to help readers better understand the concept of the present utility model, the following broadband antenna 2000 embodiment and simulation experiment are provided. Figures 4 to 18 Specifically, the dielectric constant of the dielectric layer 3 is specified to be 4.4, the dielectric loss is 0.02, and the thickness is 0.8 mm; the first metal layer 1 and the second metal layer 2 are both copper-plated, and the thickness of both is 0.035 mm; the length of the broadband antenna 2000 is specified to be 23 mm and the width is 20.5 mm, wherein, Figure 7 and Figure 8 As shown, L G is the length of the dielectric layer 3; W G is the width of the dielectric layer 3; L S1 L is the length of the interval between the first horizontal gap 211 and the second horizontal gap 212 of the C-shaped gap; S2 L is the length of the first horizontal gap 211 and the second horizontal gap 212 of the C-shaped gap; S3 L is the length of the first vertical gap 213 constituting the L-shaped gap; R is the length of the radiating patch; L F W is the length of the 50-ohm feed line or the length of the third horizontal slot 221 constituting the L-shaped slot; R is the width of the rectangular radiation patch; W S1 is the width of the C-shaped gap; W S2 W is the width of the third horizontal gap 221 constituting the L-shaped gap; S3 W is the width of the second vertical gap 222 constituting the L-shaped gap; F is the width of the 50 ohm feed line; D 1 D is the distance between the rectangular radiation patch and the lower edge of the dielectric layer 3; 2 is the distance between the 50-ohm feed line and the upper edge of the dielectric layer 3;

[0050] Corresponding to the above structure, the key parameters affecting the broadband antenna 2000 are: LS1 , L S2 , L S3 , W S2 , W S3 Therefore, simulation experiments are conducted on the above five key parameters so that the broadband antenna 2000 can obtain the desired performance. The details are as follows:

[0051] Preferably, when L is selected S1 When the diameter is 0.67mm, 0.87mm, and 1.07mm, the simulation results of the reflection coefficient are as follows: Fig. 9 As shown, with the parameter L S1 As the reflection coefficient becomes larger, it becomes worse in the passband and the bandwidth becomes slightly narrower; the center frequency of the notch moves down, and the isolation becomes better at the center frequency of the notch.

[0052] Preferably, when L is selected S2 When the diameter is 6.5mm, 7.0mm, and 7.5mm, the simulation results of the reflection coefficient are as follows: Fig.10 As shown, with the parameter L S2 As the reflection coefficient gets better within the passband, the high frequency gets better and the bandwidth gets larger; the center frequency of the notch moves down and the isolation at the center frequency remains almost unchanged.

[0053] Preferably, when L is selected S3 When the diameter is 6.0mm, 6.5mm, and 7.0mm, the simulation results of the reflection coefficient are as follows: Fig.11 As shown, with the parameter L S3 As the reflection coefficient increases, it becomes better within the passband, and the bandwidth is L S3 =6.5mm; the center frequency of the notch remains almost unchanged, and the isolation at the center frequency remains unchanged.

[0054] Preferably, when W is selected S2 When the diameter is 4.0mm, 4.5mm, and 5.0mm, the reflection coefficient simulation results are as follows: Fig.12 As shown, with the parameter W S2 As the reflection coefficient increases, it becomes better within the passband, and the bandwidth is W S2 =4.5mm; the center frequency of the notch remains unchanged, and the isolation at the center frequency of the notch remains unchanged.

[0055] Preferably, when W is selected S3 When the diameter is 11.5mm, 12.0mm, and 12.5mm, the simulation results of the reflection coefficient are as follows: Fig.13 As shown, with the parameter W S3 As the reflection coefficient increases, it first gets better and then worse within the passband. The bandwidth is W S3 =12.0mm is the maximum; the center frequency of the notch remains unchanged, and the isolation at the center frequency of the notch remains unchanged.

[0056] From the above analysis, it can be seen that when the parameters of the broadband antenna 2000 are: L G =23.0mm, W G =20.5mm, L S1 =1.07mm, L S2 =7.5mm, L S3 =6.5mm, L R =7.0mm, L F =9.0mm, W R =6.5mm,W S1 =0.13mm, W S2 =4.5mm, W S3 =12.0mm,W F =1.53mm,D 1 =7.0mm, D 2 =9.5mm, the performance of various parameters of the broadband antenna 2000 is relatively excellent, and the simulation results of its reflection coefficient are as follows: Fig.14 As shown by Fig.14 It can be seen that the broadband antenna 2000 has a reflection coefficient less than -10dB in a bandwidth range of 3.38 to 8.62GHz, a center frequency of 6GHz, an absolute bandwidth of 5.24GHz, and a relative bandwidth of 87.3%, showing broadband characteristics. Within the bandwidth range, there is a notch located at 6.01GHz.

[0057] The simulation results of gain and radiation efficiency of the broadband antenna 2000 are as follows: Fig.15 As shown. Fig.15 It can be seen that the broadband antenna 2000 not only has high gain and high radiation efficiency in the passband, but also has 8.2 dB in-band suppression at the notch center frequency.

[0058] The simulated radiation distribution diagrams of the broadband antenna 2000 at 4.0 GHz, 6.0 GHz, and 8.0 GHz are shown as follows: Fig.16 , Fig.17 and Fig.18 As shown by Fig.16 , Fig.17 and Fig.18 From the analysis, it can be seen that the broadband antenna 2000 is an omnidirectional antenna.

[0059] The present invention further provides an electronic device embodiment, the electronic device includes the above-mentioned antenna 1000, the structure and function of the antenna 1000 can refer to the above-mentioned embodiment, and will not be described in detail here.

[0060] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. An antenna, characterized in that: include A first metal layer includes a feeder portion and a radiation portion, wherein the feeder portion and the radiation portion are connected; The second metal layer is provided with a first gap, wherein the first gap is a C-shaped gap; The first metal layer is arranged on the first surface of the dielectric layer, the second metal layer is arranged on the second surface of the dielectric layer, and along the direction from the first surface to the second surface of the dielectric layer, the projection of the feed line portion at least partially overlaps with the C-shaped gap.

2. The antenna according to claim 1, characterized in that The first gap includes a first horizontal gap, a second horizontal gap and a first vertical gap, the first horizontal gap, the first vertical gap and the second horizontal gap are connected in sequence, and the first horizontal gap and the second horizontal gap are parallel, and the first horizontal gap and the second horizontal gap are both perpendicular to the first vertical gap.

3. The antenna according to claim 1, characterized in that The second metal layer further includes a second gap, and the second gap is an L-shaped gap.

4. The antenna according to claim 3, characterized in that: The second slot includes a third horizontal slot and a second vertical slot that are connected to each other. The third horizontal slot is perpendicular to the second vertical slot, and the third horizontal slot is parallel to the feeder portion.

5. The antenna according to claim 4, characterized in that: The third horizontal gap is located at a junction of two adjacent edge lines of the bottom surface of the second metal layer.

6. The antenna according to claim 1, characterized in that The projection of the radiation portion on the dielectric layer is a rectangle.

7. The antenna according to claim 1, characterized in that: The feed line portion is a microstrip feed line with a resistance of 50 ohms.

8. The antenna according to claim 1, characterized in that: The center line of the feeder portion coincides with the center line of the radiation portion.

9. The antenna according to claim 1, characterized in that: The feed line portion is located at the center of an intersection of the first surface of the dielectric layer and a side edge of the dielectric layer.

10. An electronic device, characterized in that: Comprising the antenna according to any one of claims 1-9.

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