Antenna and electronic device

Abstract

The present application relates to an antenna and an electronic device. The antenna comprises a substrate, and a first radiating element and a second radiating element having the same shape. The first radiating element and the second radiating element each comprise a first portion and a second portion. The first portion is semicircular. The first radiating element and the second radiating element are mirror-symmetrical to one another, and the opening direction of the first portion of the first radiating element is opposite to the opening direction of the first portion of the second radiating element. The first radiating element is disposed in an upper half region of a front surface of the substrate, and the second radiating element is disposed in a lower half region of a back surface of the substrate. In this way, the two radiating elements arranged in upper and lower regions of the substrate are mirror-symmetrical, and each has a semicircular first portion and a second portion extending the semicircle, thereby enabling currents of the upper and lower radiating elements to be maintained in the same direction within an ultra-wideband range, achieving omnidirectional radiation characteristics of the antenna, and ensuring that the characteristic impedance varies smoothly with frequency.

Description

Antennas and electronic equipment Technical Field

[0001] This application relates to the field of wireless communication technology, and more particularly to an antenna and electronic device. Background Technology

[0002] In the development of antennas based on anechoic chambers, antenna test data from different anechoic chambers often vary significantly, affecting the quality of antenna development. To address the current inconsistency issues in anechoic chamber testing, it is necessary to calibrate different anechoic chambers using a single calibration antenna. However, current conventional dipole antennas, Franklin antennas, and similar devices cannot maintain good omnidirectionality and radiation efficiency across a wide operating frequency band, thus failing to meet the requirements for anechoic chamber calibration.

[0003] Utility Model Content

[0004] This application provides an antenna and electronic device to solve the technical problem of poor omnidirectionality of calibration antennas over a wide bandwidth.

[0005] In a first aspect, this application provides an antenna, comprising: a substrate and a first radiator and a second radiator of the same shape;

[0006] Both the first radiator and the second radiator include a first part and a second part; wherein, the first part is semi-circular, and the first straight edge of the second part is connected to the diameter edge of the first part;

[0007] The first radiator and the second radiator are mirror images of each other, and the opening directions of the first part of the first radiator and the first part of the second radiator are opposite; the first radiator is disposed in the upper half of the front side of the substrate, and the second radiator is disposed in the lower half of the back side of the substrate.

[0008] In one possible implementation, the second portion is a rectangle, and the first straight side has the same length as the diameter side.

[0009] In one possible implementation, the second straight edge of the second portion, which is parallel to the first straight edge, is located near the edge of the substrate.

[0010] In one possible implementation, the lengths of the first straight side and the diameter side are positively correlated with the operating frequency band of the antenna.

[0011] In one possible implementation, the length of the first straight edge and the diameter edge is 96 mm, and the width of the second portion along the direction perpendicular to the first straight edge is 18 mm.

[0012] In one possible implementation, the antenna further includes: a feed assembly connected to the first radiator, the length direction of the feed assembly being perpendicular to the diameter side of the first portion; the width of the feed assembly gradually increases along the direction away from the first radiator.

[0013] In one possible implementation, the power supply assembly is divided into multiple sections, wherein the width of each section is consistent, and the width of the section increases as it is farther away from the first radiator.

[0014] In one possible implementation, the feeding assembly is divided into a first section, a second section, a third section, a fourth section, and a fifth section along a direction away from the first radiator; wherein the width of the first section ranges from 0.5 to 3 mm, the width of the second section ranges from 1 to 3.5 mm, the width of the third section ranges from 1 to 3.5 mm, the width of the fourth section ranges from 1.5 to 4 mm, and the width of the fifth section ranges from 2 to 5 mm.

[0015] In one possible implementation, the width of the first section is 1.0 mm, the width of the second section is 1.4 mm, the width of the third section is 1.5 mm, the width of the fourth section is 1.9 mm, and the width of the fifth section is 2.7 mm.

[0016] Secondly, this application provides an electronic device comprising the antenna described in any of the first aspects.

[0017] Compared with the prior art, the technical solution provided in this application has the following advantages: The antenna provided in this application includes: a substrate and a first radiator and a second radiator of the same shape; both the first radiator and the second radiator include a first part and a second part; wherein, the first part is semi-circular, and the first straight edge of the second part is aligned with the diameter edge of the first part; the first radiator and the second radiator are mirror-symmetrical, and the opening directions of the first part of the first radiator and the first part of the second radiator are opposite; the first radiator is disposed in the upper half of the front side of the substrate, and the second radiator is disposed in the lower half of the back side of the substrate. Thus, based on the symmetrical distribution of the two radiators in the upper and lower regions of the substrate, and both having a semi-circular structure, the current in the upper and lower radiators can be kept in the same direction over the ultra-wideband range, achieving omnidirectional radiation characteristics of the antenna based on the semi-circular structure. Furthermore, based on the second part extending from the semi-circular structure, the characteristic impedance of the antenna can be kept smooth and stable with frequency changes, achieving ultra-wideband impedance matching characteristics of the radiator and improving the radiation efficiency of the antenna. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0022] Figure 2 is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0023] Figure 3 is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0024] Figure 4 is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0026] Figure 6 is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0027] Figure 7 is a schematic diagram of impedance matching for an antenna provided in an embodiment of this application;

[0028] Figure 8 is a radiation pattern of an antenna provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures: T, antenna; 1, substrate; 2, first radiator; 3, second radiator; 4 (41, 42), first part; 5 (51, 52), second part; B1, first straight edge of the second part; Z, diameter edge of the first part; X1, opening direction of the first part 41; X2, opening direction of the first part 42; M1, front side of the substrate; Q1, upper half of the front side of the substrate; M2, back side of the substrate; Q2, lower half of the back side of the substrate; Q3, lower half of the front side of the substrate; H, arc edge of the first part; K, width direction of the substrate; B2, second straight edge of the second part; S, edge of the substrate; X3, direction of the first straight edge; X4, length direction of the feed assembly; X5, direction away from the first radiator; 6, feed assembly; 61, first section; 62, second section; 63, third section; 64, fourth section; 65, fifth section. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0031] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0032] To address the technical problem that the omnidirectionality and efficiency of existing calibration antennas cannot meet the requirements for wideband operation, this application provides an antenna and an electronic device equipped with the antenna. Through two symmetrical radiators with a semi-circular structure, the current in the upper and lower radiators can be kept in the same direction over an ultra-wideband range, achieving omnidirectional radiation characteristics of the antenna. Furthermore, based on the second portion extending from the semi-circular structure, the characteristic impedance of the antenna can be kept smooth and stable with frequency changes.

[0033] Figure 1 is a schematic diagram of the structure of an antenna provided in this embodiment. As shown in Figure 1, the antenna T includes: a substrate 1 and a first radiator 2 and a second radiator 3 of the same shape.

[0034] Both the first radiator 2 and the second radiator 3 include a first part 4 (41, 42) and a second part 5 (51, 52); wherein, the first part 4 (41, 42) is semi-circular, and the first straight edge B1 of the second part 5 (51, 52) is connected to the diameter edge Z of the first part 4 (41, 42);

[0035] The first radiator 2 and the second radiator 3 are mirror images of each other, and the opening directions of the first part 41 of the first radiator 2 and the first part 42 of the second radiator 3 are opposite (the opening direction of the first part 41 is X1, and the opening direction of the first part 42 is X2); the first radiator 2 is disposed in the upper half of the front side (M1 as shown in Figure 6) of the substrate 1 (Q1 as shown in Figure 6), and the second radiator 3 is disposed in the lower half of the back side (M2 as shown in Figure 6) of the substrate 1 (Q2 as shown in Figure 6).

[0036] In this embodiment, the first radiator 2 and the second radiator 3 have the same shape, and may include: the first part 41 included in the first radiator 2 has the same shape as the first part 42 included in the second radiator 3, and the second part 51 included in the first radiator 2 has the same shape as the second part 52 included in the second radiator 3.

[0037] In one embodiment, the first part 4 (41, 42) is a semicircle, which may refer to the first part 4 (41, 42) including a diameter side Z and an arc side H, the length of the diameter side Z being the diameter of the semicircle. The second part 5 (51, 52) can be a polygon, such as a rectangle, trapezoid, triangle, etc. The second part 5 (51, 52) includes at least one straight side (i.e., the first straight side B1), which aligns with the diameter side Z of the first part 4 (41, 42).

[0038] In one embodiment, the first part 4 (41, 42) and the second part 5 (51, 52) are connected by the diameter side Z and the first straight side B1, and the first part 4 (41, 42) and the second part 5 (51, 52) are integrally connected. For example, as shown in FIG1, the antenna structure is when the second part 5 (51, 52) is rectangular. Optionally, the second part 5 (51, 52) can also be trapezoidal, triangular or other shapes, etc., which are not specifically limited here.

[0039] In one embodiment, as shown in Figure 2, the second part 5 (51, 52) can also be trapezoidal. The first straight side B1 that connects to the diameter side Z can be the long bottom side of the second part 5 (51, 52) or the short bottom side of the second part 5 (51, 52), so as to satisfy the requirement that the characteristic impedance of the antenna changes smoothly with the frequency and realize the impedance matching characteristics of the radiator.

[0040] In one embodiment, the length of the first straight side B1 can be equal to, or greater than or less than, the diameter Z. For example, when the length of the first straight side B1 is less than the diameter Z, the second part 5 (51, 52) can be trapezoidal, and the first straight side B1 is the long base of the second part 5 (51, 52), so that it can gradually widen from the second part 5 (51, 52) to the first part 4 (41, 42), which is conducive to smooth impedance matching.

[0041] In one embodiment, a first radiator 2 and a second radiator 3 are respectively disposed in the upper and lower regions of the substrate 1. The first radiator 2 and the second radiator 3 can be disposed opposite to each other, i.e., their directions are opposite. For example, the opening direction of the first portion 41 of the first radiator 2 is opposite to that of the first portion 42 of the second radiator 3. This can refer to the direction in which the apex of the arc edge of the first portion 41 of the first radiator 2 points to the diameter edge, which is opposite to the direction in which the apex of the arc edge of the first portion 42 of the second radiator 4 points to the diameter edge. The diameter edge of the first radiator 2 is parallel to the diameter edge of the second radiator 3, and the first portion 41 of the first radiator 2 is close to the second portion 52 of the second radiator 3.

[0042] For example, the arc edge of the first radiator 2 is close to the arc edge of the second radiator 3, and the diameter edge of the first portion 41 of the first radiator 2 is far away from the diameter edge of the first portion 42 of the second radiator 3. Here, the arc edge of the first radiator 2 can refer to the arc edge of the first portion 41 of the first radiator 2, and the arc edge of the second radiator 3 can refer to the arc edge of the first portion 42 of the second radiator 3.

[0043] In one embodiment, the arc edge of the first radiator 2 being close to the arc edge of the second radiator 3 can refer to the distance between the vertex of the arc edge of the first radiator 2 and the vertex of the arc edge of the second radiator 3, which is the minimum distance between any point on the first radiator 2 and any point on the second radiator 3. Here, the vertex of the arc edge refers to the point on the arc edge of the first part 4 (41, 42) that is farthest from the diameter edge.

[0044] In one embodiment, the second portion 51 of the first radiator 2 and the second portion 52 of the second radiator 3 are close to the upper edge and lower edge of the substrate 1, respectively, and the first portion 41 of the first radiator 2 is close to the first portion 42 of the second radiator 3.

[0045] In one embodiment, the opening direction of the first portion 41 in the first radiator 2 can point to the upper edge of the substrate 1, and the opening direction of the first portion 42 in the second radiator 3 can point to the lower edge of the substrate 1.

[0046] In one embodiment, the first radiator 2 and the second radiator 3 are mirror-symmetrical, meaning that the first radiator 2 and the second radiator 3 are mirror-symmetrical about the transverse central axis of the substrate 1. Here, the transverse central axis can be the central axis that divides the substrate 1 into an upper half region and a lower half region of equal size.

[0047] In one embodiment, the diameter side of the first part 4 (41, 42) is parallel to the width direction K of the substrate 1, which is the transverse central axis direction of the substrate 1. The length of the diameter side Z of the first part 4 (41, 42) can be equal to or less than the width of the substrate 1, and the length of the first straight side B1 of the second part 5 (51, 52) can be equal to the length of the diameter side Z.

[0048] Thus, based on the two radiators symmetrically arranged in the upper and lower regions of the substrate 1, and each having a semi-circular structure, the currents of the upper and lower radiators can be kept in the same direction over the ultra-wideband range. The omnidirectional radiation characteristics of the antenna are achieved based on the two semi-circular structures with opposite directions. In addition, based on the second part 5 (51, 52) extending from the semi-circular structure, the characteristic impedance of the antenna can be kept smooth and stable with frequency changes, realizing the ultra-wideband impedance matching characteristics of the radiators and improving the radiation efficiency of the antenna.

[0049] In some embodiments, the second portion 5 (51, 52) is a rectangle, and the first straight side B1 has the same length as the diameter side Z.

[0050] Here, as shown in Figure 1, based on the first straight side B1 and the diameter side Z of the same length, the second part 5 (51, 52) of the rectangular shape is integrally connected with the first part 4 (41, 42) of the semicircular shape.

[0051] In one embodiment, the first straight side B1 is the long side of the rectangle, i.e., the second part 5 (51, 52).

[0052] In one embodiment, the second portion 5 (51, 52) is close to the edge of the substrate 1. For example, the second portion 51 of the first radiator 2 is close to the upper edge of the substrate 1, and the second portion 52 of the second radiator 3 is close to the lower edge of the substrate 1.

[0053] In one embodiment, the side of the second part 5 (51, 52), i.e. the short side of the rectangle, is close to the left and right edges of the substrate 1. For example, it may coincide with the left and right edges, or the distance from the left and right edges may be less than a preset value, thereby improving the coverage of the antenna radiator.

[0054] Thus, based on the overlap of the first straight side and the diameter side and the extension from the first part 4 (41, 42) to the second part 5 (51, 52), the characteristic impedance of the radiator can be better maintained to change smoothly with frequency, thereby realizing the ultra-wideband impedance matching characteristics of the radiator.

[0055] In one embodiment, the second straight edge B2 of the second portion 5 (51, 52) that is parallel to the first straight edge B1 is close to the edge S of the substrate 1.

[0056] Here, the second straight side B2 is parallel to the first straight side B1. For example, when the second part 5 (51, 52) is a trapezoid, the first straight side B1 is the long base and the second straight side B2 is the short base; or, when the second part 5 (51, 52) is a rectangle, both the first straight side B1 and the second straight side B2 are long sides.

[0057] In one embodiment, the lengths of the first straight side B1 and the diameter side Z are positively correlated with the operating frequency band of the antenna.

[0058] In one embodiment, the lengths of the first straight side B1 and the diameter side Z are equal. The lengths of the first straight side B1 and the diameter side Z can be positively correlated with the operating frequency band and are related to the material of the substrate 1.

[0059] For example, depending on the adjustment of the operating frequency band and the selection of the substrate, the length range of the first straight edge B1 and the diameter edge Z can be 60mm to 120mm.

[0060] In one embodiment, the length of the first straight edge and the diameter edge is 96 mm, and the width of the second portion along the direction X3 perpendicular to the first straight edge is 18 mm.

[0061] Preferably, the length of the first straight side is 96mm, and when the second part 5 (51, 52) is a rectangle, the side length of the second part 5 can be 18mm.

[0062] In this way, a radiator of a certain size can be selected according to the operating frequency band, which is conducive to providing accurate omnidirectional radiation capability for the required frequency band.

[0063] Figure 3 is a schematic diagram of an antenna structure provided in this embodiment. As shown in Figure 3, the antenna may further include a feeding component 6 connected to the first radiator 2.

[0064] In one embodiment, the first radiator 2 is disposed in the upper half region (Q1, as shown in Figure 6) of the front side (M1, as shown in Figure 6), the power supply component 6 is disposed in the lower half region (Q3, as shown in Figure 6) of the front side (M1, as shown in Figure 6), and the second radiator 3 is disposed in the lower half region (Q2, as shown in Figure 6) of the back side (M2, as shown in Figure 6).

[0065] In one embodiment, the power feeding component 6 is used to feed power to the first radiator 2. For example, the power feeding component 6 can be a microstrip power feeding component 6, etc. The power feeding component 6 is disposed on the front side of the substrate 1 where the first radiator 2 is located. For example, the power feeding component 6 is disposed in the lower half region, and the power feeding component 6 can be connected to the first part 41 of the first radiator 2.

[0066] In one embodiment, as shown in FIG3, the solid line represents the first radiator 2 and the power supply assembly 6 disposed on the front side of the substrate 1, and the dashed line represents the second radiator 3 disposed on the back side of the substrate 1. The power supply assembly 6 can be connected to the apex of the arc edge of the first portion 41 in the first radiator 2.

[0067] Thus, to avoid the first radiator 2 being connected to the power supply component 6, which would prevent the second radiator 3 from being installed on the front side at the same time, the second radiator 3 is installed on the back side and kept in mirror symmetry with the first radiator 2. This will not affect the power supply process and will maintain the omnidirectional effect produced by the mirror symmetrical upper and lower radiators.

[0068] In one embodiment, as shown in FIG4, the length direction X4 of the power supply component 6 is perpendicular to the diameter side Z of the first portion 4 (41, 42); the width of the power supply component 6 gradually increases along the direction X5 away from the first radiator 2. Here, the gradual increase in width along the direction away from the first radiator 2 can mean that the width of the power supply component 6 is larger at positions farther away from the first radiator 2.

[0069] In one embodiment, one end of the power supply component 6 may be connected to the arc edge of the first portion 41 of the first radiator 2, for example, to the vertex of the arc edge. The power supply component 6 may be a strip structure, the length direction of which is perpendicular to the diameter side of the first portion 4 (41, 42), and the width of the strip structure increases with the distance from the first radiator 2.

[0070] In one embodiment, the power supply component 6 can be a triangle or a trapezoid, and the upper vertex of the triangle or the short base of the trapezoid can be connected to the arc edge of the first part 4 (41, 42), for example, connected to the vertex of the arc edge.

[0071] In one embodiment, the maximum width of the feed assembly 6 can be 2–5 mm. For example, the maximum width is the width of the feed assembly 6 at its furthest point from the first radiator 2. Exemplarily, if the feed assembly 6 is trapezoidal, the maximum width is the width of its base; or, if the feed assembly 6 is triangular, the maximum width is the width of the base opposite the top vertex. This gradual increase in width allows for good solderability, such as allowing for the soldering of SMA connectors, thereby ensuring the mechanical reliability of the antenna.

[0072] In one embodiment, the power supply component 6 is divided into multiple sections, and the maximum width of the section farther away from the first radiator 2 is larger.

[0073] Here, each section can be either a trapezoid or a rectangle. When a section is a trapezoid, its maximum width is the width of its longer base; when a section is a rectangle, its maximum width is the width of the rectangle.

[0074] In one embodiment, the width of each segment increases as the distance between the segment and the first radiator 2 increases. For example, when a segment is trapezoidal, the shorter base of the trapezoid is closer to the first radiator 2, and the longer base is farther away from the first radiator 2.

[0075] In one embodiment, when a segment is trapezoidal, it can connect to the previous segment via its short base and to the next segment via its long base. Here, the previous segment refers to the segment closer to the first radiator 2, and the next segment refers to the segment farther from the first radiator 2. The length of the side connecting the previous segment to this segment can be equal to the length of the short base of this segment, and the length of the side connecting the next segment to this segment can be equal to the length of the long base of this segment.

[0076] In one embodiment, along a direction away from the first radiator 2, the power supply assembly 6 is divided into a first section 61, a second section 62, a third section 63, a fourth section 64, and a fifth section 65; wherein the maximum width of the first section 61 is 1.0 mm, the maximum width of the second section 62 is 1.4 mm, the maximum width of the third section 63 is 1.5 mm, the maximum width of the fourth section 64 is 1.9 mm, and the maximum width of the fifth section 65 is 2.7 mm.

[0077] Thus, based on the gradually increasing width of the feed structure design, it is possible to match the ultra-wideband radiating unit, gradually matching it within a wide frequency band, so that the entire network maintains very low reflection loss, ensures transmission efficiency, and achieves ultra-wideband feeding for the radiating unit.

[0078] In one embodiment, as shown in FIG5, the power supply component 6 is divided into multiple sections (61, 62, 63, 64 and 65), with the width of each section gradually changing, and the width of the section being larger the farther away from the first radiator 2.

[0079] In one embodiment, each segment is rectangular, and each segment has the same width, which is the rectangular width of that segment. The width is the width of the segment along the transverse central axis of the substrate 1, and the length is the length of the segment along the direction perpendicular to the transverse central axis.

[0080] In one embodiment, along a direction away from the first radiator 2, the power supply assembly 6 can be divided into a first section 61, a second section 62, a third section 63, a fourth section 64, and a fifth section 65. For example, the first section 61 has a length range of 8–16 mm and a width range of 0.5–3 mm; the second section 62 has a length range of 8–16 mm and a width range of 1–3.5 mm; the third section 63 has a length range of 8–16 mm and a width range of 1–3.5 mm; the fourth section 64 has a length range of 20–28 mm and a width range of 1.5–4 mm; and the fifth section 65 has a length range of 5–10 mm and a width range of 2–5 mm.

[0081] For example, the width of the first section 61 is 1.0 mm, the width of the second section 62 is 1.4 mm, the width of the third section 63 is 1.5 mm, the width of the fourth section 64 is 1.9 mm, and the width of the fifth section 65 is 2.7 mm.

[0082] For example, the length of the first section 61 is 12mm, the length of the second section 62 is 12mm, the length of the third section 63 is 12mm, the length of the fourth section 64 is 24mm, and the length of the fifth section 65 is 8.2mm.

[0083] In this way, a multi-stage feeding circuit is formed through the design of multiple sections. Each stage of the feeding circuit is matched step by step, so that the entire network maintains very low reflection loss and ensures the transmission efficiency of the transmission line in the ultra-wideband range, thereby improving the radiation efficiency of the antenna.

[0084] As one possible implementation, an antenna is provided, as shown in Figure 6, which illustrates the overall, front, and back views of the antenna. Specifically, it includes:

[0085] 1. A rectangular + semi-circular radiating element, specifically, the front and back radiating element structures are mirror-symmetrical; the use of a rectangular + semi-circular radiating element structure achieves the following technical effects:

[0086] 1) The characteristic impedance of the radiator changes smoothly with frequency, realizing the ultra-wideband impedance matching characteristics of the radiator;

[0087] 2) Within the ultra-wideband range, the currents of the upper and lower radiators can be kept in the same direction, thus achieving the omnidirectional radiation characteristics of the antenna;

[0088] For example, typical dimensions: rectangle size 96mm * 18mm, semicircle diameter 96mm. The semicircle diameter can be dynamically adjusted from 60mm to 120mm depending on the operating frequency and substrate selection.

[0089] 2. Fifth-order ultra-wideband microstrip feeding structure, specifically:

[0090] 1) Match the ultra-wideband radiating element to achieve ultra-wideband power supply for the radiating element;

[0091] 2) The feed structure gradually widens from top to bottom, with the last section reaching a width of 2.5mm, achieving good solderability and allowing the soldering of SMA (Sub-Miniature-A) connectors to ensure the mechanical reliability of the antenna.

[0092] 3) Each stage of the feed circuit is matched step by step, so that the entire network maintains very low reflection loss, ensuring the transmission efficiency of the transmission line in the ultra-wideband range, thereby improving the radiation efficiency of the antenna.

[0093] Exemplary, typical size:

[0094] Section 1: 12mm*1mm, length range is 8~16mm, width range is 0.5~3mm;

[0095] 2 sections: 12mm*1.4mm, length range is 8~16mm, width range is 1~3.5mm;

[0096] 3 sections: 12mm*1.5mm, length range is 8~16mm, width range is 1~3.5mm;

[0097] 4 sections: 24mm*1.9mm, length range is 20~28mm, width range is 1.5~4mm;

[0098] 5 sections: 8.2mm*2.7mm, length range is 5-10mm, width range is 2-5mm.

[0099] Based on the antenna design of the above embodiments, the impedance matching effect shown in Figure 7 and the horizontal 2D radiation pattern shown in Figure 8 can be obtained. It exhibits excellent omnidirectional performance across an ultra-wide frequency band and high radiation efficiency in the ultra-wideband.

[0100] In one embodiment, an electronic device is also provided, including the antenna described in any one or more of the foregoing embodiments.

[0101] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0102] Unless otherwise specified, each step in a particular implementation or embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, the solution after removing some steps in a particular implementation or embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular implementation or embodiment can be arbitrarily interchanged. In addition, the optional methods or examples in a particular implementation or embodiment can be arbitrarily combined. Furthermore, the implementations or embodiments can be arbitrarily combined with each other. For example, some or all steps of different implementations or embodiments can be arbitrarily combined, and a particular implementation or embodiment can be arbitrarily combined with the optional methods or examples of other implementations or embodiments.

[0103] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An antenna, characterized in that, The antenna includes: a substrate and a first radiator and a second radiator of the same shape; Both the first radiator and the second radiator include a first part and a second part; wherein the first part is semi-circular; The first radiator and the second radiator are mirror images of each other, and the opening directions of the first part of the first radiator and the first part of the second radiator are opposite; the first radiator is disposed in the upper half of the front side of the substrate, and the second radiator is disposed in the lower half of the back side of the substrate.

2. The antenna according to claim 1, characterized in that, The first straight edge of the second part is aligned with the diameter edge of the first part.

3. The antenna according to claim 2, characterized in that, The first part of the first radiator has the same shape as the first part of the second radiator, and the second part of the first radiator has the same shape as the second part of the second radiator.

4. The antenna according to claim 3, characterized in that, The first part includes the diameter side and the arc side, the length of the diameter side being the diameter of the semicircle, and the second part is a polygon, and includes at least the first straight side.

5. The antenna according to claim 4, characterized in that, The second part is a rectangle, and the first straight side has the same length as the diameter side of the first part.

6. The antenna according to claim 4, characterized in that, The second part is a trapezoid, and the first straight side that connects with the diameter side of the first part is the long or short base of the trapezoid.

7. The antenna according to any one of claims 5 or 6, characterized in that, The first part and the second part are connected as a single unit.

8. The antenna according to claim 7, characterized in that, The diameter side of the first portion is parallel to the width direction of the substrate.

9. The antenna according to claim 8, characterized in that, In the second part, the second straight edge, which is parallel to the first straight edge, is close to the edge of the substrate.

10. The antenna according to claim 4, characterized in that, The length of the first straight side and the length of the diameter side are both positively correlated with the operating frequency band of the antenna.

11. The antenna according to claim 10, characterized in that, The length of the first straight edge and the length of the diameter edge both fall within the range of 60mm to 120mm.

12. The antenna according to claim 11, characterized in that, The length of the first straight edge and the length of the diameter edge are both 96mm, and the width of the second part along the direction perpendicular to the first straight edge is 18mm.

13. The antenna according to claim 1, characterized in that, The antenna further includes a feeding assembly connected to the first radiator, the feeding assembly being disposed in the lower half of the front side of the substrate.

14. The antenna according to claim 13, characterized in that, The length direction of the power supply component is perpendicular to the diameter side of the first part; the width of the power supply component gradually increases along the direction away from the first radiator.

15. The antenna according to claim 14, characterized in that, The power supply assembly is connected to the first part of the first radiator and is used to supply power to the first radiator.

16. The antenna according to claim 15, characterized in that, The power supply assembly is divided into multiple sections, each with a gradually changing width, and the sections farther away from the first radiator have a larger width.

17. The antenna according to claim 16, characterized in that, Along a direction away from the first radiator, the power supply assembly is divided into a first section, a second section, a third section, a fourth section, and a fifth section; wherein the width of the first section ranges from 0.5 to 3 mm, the width of the second section ranges from 1 to 3.5 mm, the width of the third section ranges from 1 to 3.5 mm, the width of the fourth section ranges from 1.5 to 4 mm, and the width of the fifth section ranges from 2 to 5 mm.

18. The antenna according to claim 17, characterized in that, The width of the first section is 1.0 mm, the width of the second section is 1.4 mm, the width of the third section is 1.5 mm, the width of the fourth section is 1.9 mm, and the width of the fifth section is 2.7 mm.

19. The antenna according to claim 17, characterized in that, The length of the first section ranges from 8 to 16 mm, the length of the second section ranges from 8 to 16 mm, the length of the third section ranges from 8 to 16 mm, the length of the fourth section ranges from 20 to 28 mm, and the length of the fifth section ranges from 5 to 10 mm.

20. The antenna according to claim 19, characterized in that, The length of the first section is 12mm, the length of the second section is 12mm, the length of the third section is 12mm, the length of the fourth section is 24mm, and the length of the fifth section is 8.2mm.

21. An electronic device, characterized in that, The electronic device includes the antenna according to any one of claims 1 to 20.

Images