CN222735350U - Antenna and electronic equipment - Google Patents

Abstract

The utility model discloses an antenna and an electronic device. The antenna includes a dielectric substrate and an antenna radiating unit. The antenna radiating unit is arranged on the upper surface of the dielectric substrate. The antenna radiating unit includes a feeding port, a first radiating unit, a second radiating unit and a third radiating unit. The feeding port is arranged at the edge of the upper surface of the dielectric substrate. The first radiating unit is connected to the feeding port. The second radiating unit is perpendicular to the first radiating unit and connected to the first radiating unit. The first radiating unit and the second radiating unit are integrally formed. The third radiating unit is arranged on the first side of the first radiating unit and is located on the side of the second radiating unit close to the feeding port. The third radiating unit and the first radiating unit are spaced apart to form a first gap. The first gap is used for gap coupling feeding. The second radiating unit and the third radiating unit are spaced apart to form a second gap. The electronic device includes the above antenna. The antenna of the utility model is small in size and has a large bandwidth.

Description

Antenna and electronic equipment

Technical Field

The present utility model relates to the field of antenna technology, and more particularly, to an antenna and an electronic device.

Background

The antenna is a module for receiving and transmitting signals in a wireless communication system, and is also a conversion module for circuit parameters and space electromagnetic parameters, and the performance of the antenna directly influences the overall index of the wireless communication system. In addition, in the real environment, the electromagnetic wave radiated by the antenna generates the phenomena of reflection, refraction and the like when encountering obstacles, the multipath fading phenomenon occurs, the circularly polarized antenna has great advantages in the aspect of resisting the multipath fading compared with the linearly polarized antenna, the polarization direction of the circularly polarized antenna periodically changes along with time, the electromagnetic wave in any polarization direction can be received, the requirement on the placing posture of the transmitting antenna is not high, and in addition, the right (left) circularly polarized wave radiated by the circularly polarized antenna becomes orthogonal left (right) circularly polarized wave after being reflected by a ground plane, thereby having the inhibiting effect on other multipath signals of a non-direct path.

In the conventional implementation scheme of the circular polarized antenna, as shown in fig. 1, the microstrip circular polarized antenna with the power division network is designed to generate a 90-degree phase difference after signals pass through two paths, and the 90-degree phase difference corresponds to a quarter wavelength, so that the size of the final circular polarized antenna is very large, but the bandwidth of the antenna is not very wide, and multiple layers of PCB boards are usually required to be stacked up and down, so that the final antenna is very thick, and is difficult to apply to end products with strict requirements on size. The circularly polarized antenna shown in fig. 2 adopts two mutually perpendicular dipole antennas, and realizes the radiation of circularly polarized waves by designing a feed point network, but the feed point is arranged at the central position of the PCB board, which is difficult to integrate with other radio frequency circuits.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model innovatively provides an antenna and electronic equipment, which are low-profile antennas, have no complex power division network, do not need to stack a plurality of layers of dielectric substrates up and down, have simple structure, smaller size, large bandwidth and excellent performance, have only one feed point, are arranged at one side edge of the dielectric substrate, and are easy to manufacture an independent antenna module or integrate with a radio frequency circuit.

To achieve the above technical object, a first aspect of the present utility model discloses an antenna, including a dielectric substrate and an antenna radiating element,

The antenna radiating element is arranged on the upper surface of the dielectric substrate and comprises a feed port, a first radiating element, a second radiating element and a third radiating element, the feed port is arranged on the edge of the upper surface of the dielectric substrate, the first end of the first radiating element is connected with the feed port, the second radiating element is perpendicular to the first radiating element and is connected with the second end of the first radiating element, the first radiating element and the second radiating element are integrally formed, the third radiating element is arranged on the first side of the first radiating element and is positioned on the side, close to the feed port, of the second radiating element, a first gap is formed between the third radiating element and the first radiating element, the first gap is used for gap coupling feed to enable the first radiating element to excite current on the third radiating element, and a second gap is formed between the second radiating element and the third radiating element.

Further, the antenna radiating element further includes a fourth radiating element disposed in the second slot and connecting the second radiating element and the third radiating element.

Further, the fourth radiating element is perpendicular to the second radiating element.

Further, an end portion of the second radiating element, which is far away from the first side of the first radiating element, is bent towards the edge direction of the dielectric substrate where the feed port is located.

Further, a first reference floor is arranged on the lower surface of the dielectric substrate.

Further, a first ground via hole is formed in the dielectric substrate, and the first ground via hole is electrically connected with the third radiating unit and the first reference floor respectively.

Further, the antenna radiating element further includes a fifth radiating element, the fifth radiating element is disposed on a second side of the first radiating element and is located on a side, close to the feed port, of the second radiating element, the second side is opposite to the first side, a third gap is formed between the fifth radiating element and the first radiating element, the third gap is used for gap coupling feeding, so that the first radiating element excites current on the fifth radiating element, and a fourth gap is formed between the fifth radiating element and the second radiating element, wherein a gap is kept between the fifth radiating element and the first radiating element.

Further, a second reference floor is arranged on the lower surface of the dielectric substrate.

Further, a second ground via hole is formed in the dielectric substrate, and the second ground via hole is electrically connected with the third radiating unit and the second reference floor, and the fifth radiating unit and the second reference floor respectively.

To achieve the above technical object, a second aspect of the present utility model discloses an electronic device, including the antenna described in the first aspect.

The beneficial effects of the utility model are as follows:

The antenna is a low-profile antenna without a complex power division network, does not need to be stacked up and down by a plurality of layers of dielectric substrates, has a simple structure, small size, large bandwidth and excellent performance, has only one feed point, is arranged at one side edge of the dielectric substrate, and is easy to manufacture an independent antenna module or integrate with a radio frequency circuit.

Drawings

Fig. 1 is a schematic structural diagram of a conventional microstrip circularly polarized antenna with a power division network.

Fig. 2 is a schematic structural diagram of a conventional circularly polarized antenna.

Fig. 3 is a schematic structural diagram of an antenna according to a first embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of an antenna according to a second embodiment of the present utility model.

Fig. 5 is a schematic structural diagram of an antenna according to a third embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of an antenna according to a fourth embodiment of the present utility model.

Fig. 7 is a schematic structural diagram of an antenna according to a fifth embodiment of the present utility model.

Fig. 8 is a schematic structural diagram of an antenna according to a sixth embodiment of the present utility model.

Fig. 9 is a schematic structural view of an antenna according to a seventh embodiment of the present utility model.

Fig. 10 is a graph showing a surface current profile of a third radiating element over time according to an embodiment of the present utility model.

Fig. 11 is a return loss plot of an antenna according to an embodiment of the present utility model.

Fig. 12 is an axial ratio graph of an antenna according to an embodiment of the present utility model.

Fig. 13 is a graph of the input impedance of an antenna according to an embodiment of the present utility model.

Fig. 14 is a radiation pattern of an antenna of an embodiment of the present utility model at a frequency of 2.44 GHz.

In the drawing the view of the figure,

1. The antenna comprises a dielectric substrate, 2, an antenna radiating unit, 20, a feed port, 21, a first radiating unit, 22, a second radiating unit, 23, a third radiating unit, 24, a fourth radiating unit, 25, a fifth radiating unit, 26, a first slot, 27, a second slot, 28, a third slot, 29, a fourth slot, 3, a first reference floor, 31, a first ground through hole, 4, a second reference floor, 41, a second ground through hole, x, width directions, y and length directions.

Detailed Description

The antenna and the electronic device provided by the utility model are explained and illustrated in detail below with reference to the drawings.

The embodiment specifically discloses an antenna, as shown in fig. 3, including a dielectric substrate 1 and an antenna radiation unit 2, where the antenna radiation unit 2 is disposed on an upper surface of the dielectric substrate 1, the antenna radiation unit 2 includes a feed port 20, a first radiation unit 21, a second radiation unit 22, and a third radiation unit 23, the feed port 20 is disposed on an edge of the upper surface of the dielectric substrate 1, and the feed port 20 is a place where an excitation source is added and is used for adding the excitation source.

The first end of the first radiating element 21 is connected with the feed port 20, current generated by the excitation source flows through the first radiating element 21 and generates radiation, the second radiating element 22 is perpendicular to the first radiating element 21 and is connected with the second end of the first radiating element 21, the feed port 20 is arranged at one end of the first radiating element 21, the second radiating element 22 is perpendicular to the other end of the first radiating element 21, two ends of the second radiating element 22 extend towards two sides of the first radiating element 21, the second radiating element 22 and the first radiating element 21 form a T-shaped structure, and the current on the first radiating element 21 and the current on the second radiating element 22 have a phase difference of 90 degrees and radiate circularly polarized waves. Preferably, the first radiating element 21 and the second radiating element 22 are integrally formed.

The third radiating element 23 is disposed on the first side of the first radiating element 21 and is located on the side of the second radiating element 22 close to the feeding port 20, preferably, the third radiating element 23 is disposed on the left side of the first radiating element 21, a first gap 26 is formed between the side of the third radiating element 23 close to the first radiating element 21 and the first radiating element 21, the first gap 26 is used for gap coupling feeding, so that the first radiating element 21 excites current on the third radiating element 23, current with a 90-degree phase difference can be excited, and the radiation effect of circular polarized waves is enhanced on the basis of circular polarized waves radiated by the currents on the first radiating element 21 and the second radiating element 22 which are perpendicular to each other. The third radiating element 23 is also used to adjust the impedance matching of the antenna, increasing the impedance bandwidth of the antenna, while the third radiating element 23 is the ground of the antenna on top of the dielectric substrate 1.

The second slit 27 is formed by the side of the second radiating element 22 adjacent to the third radiating element 23 and the space between the third radiating element 23. No other conductive element is arranged in the second slit 27, the length of the second slit 27 in the length direction of the first radiating element 21 (i.e. in the y-axis direction in the figure) is large, the second slit 27 provides sufficient headroom to weaken the spatial coupling between the second radiating element 22 and the third radiating element 23, and the second radiating element 22 hardly couples out current on the third radiating element 23 via the second slit 27.

By adjusting the width of the first radiating element 21 (i.e., the length in the x-axis direction in the drawing) and the width of the first slit 26, the characteristic impedance of the feed port 20 can be made 50Ω, facilitating impedance matching. Alternatively, the width of the first slit 26 is 0.5mm or 1mm, and the present application is not limited to the specific width of the first slit 26.

The feeding port 20 is arranged at the edge of the dielectric substrate 1, is convenient to weld and integrate with a radio frequency connector for testing, is convenient to integrate with a radio frequency circuit, is arranged at the side part of an antenna after the feeding port 20 is connected with the radio frequency connector, and is connected with the ground (the third radiating unit 23) of the top of the dielectric substrate 1 at the upper part of the radio frequency connector to provide a reflux path for the feeding port 20.

By a rational layout of the feed port 20, the first radiating element 21, the second radiating element 22 and the third radiating element 23, a low profile and small size design of the antenna can be achieved.

Optionally, as shown in fig. 4, the antenna radiating element 2 further includes a fourth radiating element 24, where the fourth radiating element 24 is disposed in the second slot 27 and connects the second radiating element 22 and the third radiating element 23, one end of the fourth radiating element 24 is connected to the second radiating element 22, and the other end of the fourth radiating element 24 is connected to the third radiating element 23, and the fourth radiating element 24 provides a direct current excitation path for the third radiating element 23, and may also be used to adjust impedance matching of the antenna. Preferably, the first, second, third and fourth radiating elements 21, 22, 23 and 24 are integrally formed.

The first radiation element 21 excites current on the third radiation element 23 through the slot coupling feeding action of the first slot 26, and the second radiation element 22 also provides a direct excitation source for the third radiation element 23 through the connection action of the fourth radiation element 24, so that currents with a phase difference of 90 degrees are excited on the third radiation element 23, and two current excitation sources (the first radiation element 21 and the second radiation element 22) generate a strong circularly polarized radiation wave on the third radiation element 23.

The second slot 27 is not provided with any other conductive elements except the fourth radiating element 24, the dimensions of the second slot 27 in the length direction and the width direction of the first radiating element 21 are large, the second slot 27 provides enough clearance to weaken the spatial coupling between the second radiating element 22 and the third radiating element 23, and the spatial coupling between the first radiating element 21 and the fourth radiating element 24, and the second radiating element 22 hardly couples out current on the third radiating element 23 through the second slot 27.

Preferably, the fourth radiating element 24 is perpendicular to the second radiating element 22 and is connected to one end of the second radiating element 22, whereby the second radiating element 22 and the fourth radiating element 24 form an "L" shaped radiating structure, which on the one hand reduces the length of the antenna radiating element 2 and provides a variable for adjusting the impedance matching, and on the other hand the fourth radiating element 24 provides a directly connected current excitation path for the third radiating element 23, further increasing the circularly polarized radiated wave.

By a rational layout of the feed port 20, the first radiating element 21, the second radiating element 22, the third radiating element 23 and the fourth radiating element 24, a low profile and small size design of the antenna can be achieved.

Alternatively, as shown in fig. 5, the lower surface of the dielectric substrate 1 is provided with a first reference floor 3, the first reference floor 3 is used as the ground of the bottom of the dielectric substrate 1, after the feeding port 20 is connected with a radio frequency connector, the radio frequency connector is arranged at the side of the antenna, the upper part of the radio frequency connector is connected with the third radiating unit 23, and the bottom of the radio frequency connector is connected with the first reference floor 3 to provide a reflux path for the feeding port 20.

As shown in fig. 6, the dielectric substrate 1 is provided with a first ground via 31, and the first ground via 31 is electrically connected to the third radiation unit 23 and the first reference floor 3, respectively. The first ground via 31 is a metal via, penetrates through the dielectric substrate 1, the top of the first ground via 31 is connected with the third radiating unit 23, and the bottom of the first ground via 31 is connected with the first reference floor 3 to provide a return path for the feed port 20. The number of the first ground vias 31 may be plural, and the plural first ground vias 31 may be arranged along the length direction of the dielectric substrate 1, may be arranged along the width direction of the dielectric substrate 1, or may be arranged in an array.

In some embodiments, as shown in fig. 7, the antenna radiating element 2 further includes a fifth radiating element 25, where the fifth radiating element 25 is disposed on a second side of the first radiating element 21 and on a side of the second radiating element 22 near the feed port 20, the second side being opposite to the first side, and in this embodiment, the fifth radiating element 25 is disposed on a right side of the first radiating element 21 and on a side of the second radiating element 22 near the feed port 20, where a third gap 28 is formed by a distance between an edge of the fifth radiating element 25 near the first radiating element 21 and the first radiating element 21, where the third gap 28 is used for gap coupling feeding, such that the first radiating element 21 excites a current on the fifth radiating element 25, and where a fourth gap 29 is formed by a distance between an edge of the fifth radiating element 25 near the second radiating element 22 and the second radiating element 22. The first radiation unit 21 excites current with 90 DEG phase difference on the fifth radiation unit 25 through the slot coupling feed action of the third slot 28 to excite circularly polarized wave, further enhancing the radiation efficiency of circularly polarized radiation wave, and the fifth radiation unit 25 is also used for adjusting the impedance matching of the antenna to increase the impedance bandwidth of the antenna.

By adjusting the width of the first radiating element 21, the width of the first slot 26 and the width of the third slot 28, it is possible to achieve a characteristic impedance of 50Ω of the feed port 20, to facilitate impedance matching, and optionally, the width of the third slot 28 is 0.5mm or 1mm, and the present application is not limited to the specific width of the third slot 28.

In addition to the fourth radiating element 24, no further conductive elements are provided in the second slot 27, nor in the fourth slot 29, the lengths of the second slot 27 and the fourth slot 29 in the longitudinal direction of the first radiating element 21 are relatively large, and the second radiating element 22 hardly couples out current through the second slot 27 on the third radiating element 23, and hardly couples out current through the fourth slot 29 on the fifth radiating element 25.

Alternatively, as shown in fig. 7, the lower surface of the dielectric substrate 1 is provided with a second reference floor 4. The fifth radiating element 25 is also the ground of the antenna on the top of the dielectric substrate 1, the second reference floor 4 is the ground of the antenna on the bottom of the dielectric substrate 1, and after the feeding port 20 is connected with the rf connector, the upper part of the rf connector is connected with the third radiating element 23 and the fifth radiating element 25, and the bottom of the rf connector is connected with the second reference floor 4 to provide a reflux path for the feeding port 20. The size of the fifth radiating element 25 is adjusted according to the requirement, and the radiating effect of the circularly polarized wave on the fifth radiating element 25 can be further enhanced by adjusting the size, and the radiating effect is used for adjusting impedance matching and increasing the impedance bandwidth of the antenna, as shown in fig. 7 and 8, only the length of the fifth radiating element 25 along the length direction of the first radiating element 21 is required to be ensured to be longer than the length of the second reference floor 4 along the length direction of the first radiating element 21.

Alternatively, as shown in fig. 8, a second ground via 41 is formed on the dielectric substrate 1, and the second ground via 41 is electrically connected to the third radiating element 23 and the second reference floor 4, and the fifth radiating element 25 and the second reference floor 4, respectively. The second ground via 41 connects the ground on top of the dielectric substrate 1 and the ground on the bottom of the dielectric substrate 1, providing a return path for the feed port 20. The second ground vias 41 are metal vias, the second ground vias 41 penetrate through the dielectric substrate 1, and the number of the second ground vias 41 connecting the third radiating element 23 and the second reference floor 4 and the number of the second ground vias 41 connecting the fifth radiating element 25 and the second reference floor 4 may be multiple, and may be arranged along the length direction of the dielectric substrate 1, may be arranged along the width direction of the dielectric substrate 1, or may be arranged in an array.

Alternatively, in some embodiments, as shown in fig. 5, 6 and 9, an end of the second radiating element 22 away from the first side of the first radiating element 21 (i.e., an end on the second side of the first radiating element 21, in this embodiment, a right end of the second radiating element 22) is bent toward the edge of the dielectric substrate 1 where the feed port 20 is located. Preferably, the bent portion after bending is parallel to the first radiating element 21. The bending part is used for adjusting the impedance matching of the antenna and increasing the impedance bandwidth of the antenna.

Alternatively, the embodiment of the present application may enhance the radiation effect of the circularly polarized wave on the first radiation unit 21 and the second radiation unit 22 by adjusting the sizes of the first radiation unit 21 and the second radiation unit 22, enhance the radiation effect of the circularly polarized wave on the third radiation unit 23 by adjusting the size of the third radiation unit 23, and enhance the radiation effect of the circularly polarized wave on the fifth radiation unit 25 by adjusting the size of the fifth radiation unit 25, thereby enhancing the radiation effect of the total circularly polarized wave of the entire antenna radiation unit 2.

Optionally, the shape of each radiating element in the embodiment of the present application is a simple shape such as a strip, a rectangle, a square, or the like, and may be various other shapes such as a trapezoid, a diamond, a triangle, a polygon, a circle, or the like.

Optionally, the dielectric substrate 1 of the embodiment of the present application is a PCB board, and the materials of the antenna radiating unit 2 and the reference floor may be metal materials or non-metal conductive materials. Preferably, the antenna radiating elements 2 are copper plating printed on the upper surface of the dielectric substrate 1, the feed port 20 and the radiating elements are formed by etching slits, and the reference floor is copper plating printed on the lower surface of the dielectric substrate 1. The interconnected radiating elements are formed into an integral structure by etching the slits, so that the connection is stable and the radiating effect is good, the feed point port 20 and the radiating elements are formed by etching the first slit 26, the second slit 27 and other non-radiating elements, and the first radiating element 21 and the second radiating element 22 are formed into an integral structure, so that the connection is stable and the radiating effect is good, the feed point port 20 and the radiating elements are formed by etching the first slit 26, the second slit 27 and other non-radiating elements, and the first radiating element 21, the second radiating element 22, the third radiating element 23 and the fourth radiating element 24 are formed into an integral structure, so that the connection is stable and the radiating effect is good, and the feed point port 20 and the radiating elements are formed by etching the first slit 26, the second slit 27, the third slit 28, the fourth slit 29 and other non-radiating elements, and the feed point port 20 and the radiating elements are formed by etching the first slit 26, the second radiating element 22, the third radiating element 23 and the fourth radiating element 24 are formed into an integral structure, so that the connection is stable, so that the radiating effect is good, as shown in fig. 4, 5 and 6.

Fig. 10 is a graph showing a time-dependent surface current profile of the third radiating element according to an embodiment of the present application, and the time in the clockwise direction in fig. 10 is 0 cycle, 1/4 cycle, 1/2 cycle, and 3/4 cycle, respectively, and it is apparent from fig. 10 that the current on the third radiating element 23 is rotated and right-handed over with respect to time, thereby radiating circularly polarized electromagnetic waves, whereby it can be explained that the antenna of the present application is capable of radiating circularly polarized electromagnetic waves.

Fig. 11 is a return loss graph of an antenna according to an embodiment of the present application, and as can be seen from the graph of fig. 11, the impedance Band of-10 dB of the antenna according to the present application is 2.1ghz to 3.3ghz, and the ISM Band (Industrial SCIENTIFIC MEDICAL Band) of 2.4G is covered, so that the relative bandwidth reaches 44.4%, which is far higher than that of a common microstrip antenna.

Fig. 12 is an axial ratio graph of an antenna according to an embodiment of the present application, and it can be seen from the graph of fig. 12 that the 3dB axial ratio frequency band of the antenna according to the present application is 2.31ghz to 2.6ghz, and the ISM frequency band of 2.4G is covered, and the relative bandwidth reaches 11.8%.

Fig. 13 is a graph of input impedance of the antenna according to the embodiment of the present application, and it can be seen from the graph of fig. 13 that the input impedance of the antenna according to the present application has a very flat characteristic in a very wide frequency band ranging from 2.28ghz to 3.22ghz, and is very close to 50Ω, and has a very good impedance matching effect.

Fig. 14 is a radiation pattern of the antenna according to the embodiment of the present application at a frequency of 2.44GHz, and in fig. 14, an upper circular line represents an upwardly radiating right-hand circularly polarized wave, and a lower circular line represents a downwardly radiating left-hand circularly polarized wave, and the gain of the antenna reaches 2.35dB.

In summary, the present application can realize the circularly polarized radiation of the antenna, the upper hemisphere direction of the antenna is the right-handed circularly polarized radiation, the lower hemisphere direction of the antenna is the left-handed circularly polarized radiation, and the antenna of the present application has a very wide bandwidth and a very gentle input impedance curve, and the dimensions of the first radiating element 21, the second radiating element 22, the third radiating element 23, the fourth radiating element 24 and the fifth radiating element 25 are adjusted, so that in a specific embodiment, the overall length and width of the antenna can be about 36mm by 43mm, i.e. the length and width of the dielectric substrate 1 can be about 36mm by 43 mm. In addition, the antenna has no complex power division network, does not need a feed network and a plurality of layers of dielectric substrates to be stacked up and down, has a simple structure and smaller size, can be thinner, and can be applied to terminal products with strict size requirements.

The application also discloses electronic equipment comprising the antenna. The electronic equipment can be electronic equipment in the fields of satellite navigation, ranging and positioning, vehicle-mounted communication and the like.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to the terms "present embodiment," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any at least one embodiment or example. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model, but any modifications, equivalents, and simple improvements made within the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. An antenna is characterized by comprising a dielectric substrate (1) and an antenna radiating unit (2),

The antenna radiating element (2) is arranged on the upper surface of the dielectric substrate (1), the antenna radiating element (2) comprises a feed port (20), a first radiating element (21), a second radiating element (22) and a third radiating element (23), the feed port (20) is arranged on the edge of the upper surface of the dielectric substrate (1), a first end of the first radiating element (21) is connected with the feed port (20), the second radiating element (22) is perpendicular to the first radiating element (21) and is connected with a second end of the first radiating element (21), the first radiating element (21) and the second radiating element (22) are integrally formed, the third radiating element (23) is arranged on a first side of the first radiating element (21) and is positioned on one side, close to the feed port (20), a first gap (26) is formed between the third radiating element (23) and the first radiating element (21), and a second gap (27) is formed between the first radiating element (23) and the third radiating element (23).

2. The antenna according to claim 1, characterized in that the antenna radiating element (2) further comprises a fourth radiating element (24), the fourth radiating element (24) being arranged within the second slot (27) and connecting the second radiating element (22) and the third radiating element (23).

3. The antenna according to claim 2, characterized in that the fourth radiating element (24) is perpendicular to the second radiating element (22).

4. The antenna according to claim 1, characterized in that the end of the second radiating element (22) remote from the first side of the first radiating element (21) is bent towards the edge of the dielectric substrate (1) where the feed port (20) is located.

5. An antenna according to any one of claims 1-4, characterized in that the lower surface of the dielectric substrate (1) is provided with a first reference floor (3).

6. The antenna according to claim 5, characterized in that the dielectric substrate (1) is provided with a first ground via (31), the first ground via (31) being electrically connected to the third radiating element (23) and the first reference floor (3), respectively.

7. The antenna according to any of claims 1-4, characterized in that the antenna radiating element (2) further comprises a fifth radiating element (25), the fifth radiating element (25) being arranged on a second side of the first radiating element (21) and on a side of the second radiating element (22) close to the feed port (20), the second side being opposite to the first side, a third gap (28) being formed between the fifth radiating element (25) and the first radiating element (21), the third gap (28) being for a gap-coupled feed for exciting a current on the fifth radiating element (25) by the first radiating element (21), a fourth gap (29) being formed by a distance between the fifth radiating element (25) and the second radiating element (22).

8. An antenna according to claim 7, characterized in that the lower surface of the dielectric substrate (1) is provided with a second reference floor (4).

9. The antenna according to claim 8, characterized in that a second ground via (41) is provided on the dielectric substrate (1), the second ground via (41) electrically connecting the third radiating element (23) and the second reference floor (4), and the fifth radiating element (25) and the second reference floor (4), respectively.

10. An electronic device comprising the antenna of any one of claims 1-9.