WO2023068719A1 - Antenna structure and electronic device comprising same - Google Patents

Abstract

An antenna structure according to various embodiments disclosed in the present document may comprise: a radiation plate having a plate shape, the radiation plate comprising a curved outer edge, a curved inner edge substantially similar to the outer edge, and a width formed between the outer edge and the inner edge; a ground plate spaced apart and facing the radiation plate; a feeding unit electrically connecting the radiation plate and the ground plate; a first short-circuit unit spaced apart from the feeding unit and electrically connecting the radiation plate and the ground plate; and a second short-circuit unit spaced apart from the feeding unit and the first short-circuit unit and electrically connecting the radiation plate and the ground plate, wherein each of the feeding unit, the first short-circuit unit, and the second short-circuit unit comprises a longer side connecting the radiation plate and the ground plate, and a shorter side which is in contact with at least a part of the outer edge of the radiation plate along the outer edge of the radiation plate.

Description

Antenna structure and electronic device including the same

Various embodiments disclosed in this document relate to an antenna structure and an electronic device including an antenna.

Wireless electronic devices (hereinafter referred to as electronic devices) such as smart phones and wearable devices (eg, true wireless stereo (TWS)) are gradually being miniaturized. These electronic devices use various types of wireless communication (eg, Wi-Fi (wireless fidelity), Bluetooth, BLE (Bluetooth-low energy), UWB (ultra wide band) communication), and corresponding to these wireless communication methods Various bands of frequencies are supported. Various miniaturized antenna structures are being developed to satisfy the trend of miniaturization of electronic devices and frequencies of various bands.

A planar inverted-F antenna (PIFA) structure used to increase bandwidth in a small antenna may limit UWB band acquisition. Multiple resonances can be created by adding a shorting pin to the PIFA structure, but it is difficult to satisfy the wide bandwidth. Additional resonant modes can be created through feed location and frequency, but this also requires additional space in each supply chain design. Finally, multiple resonances can be created in the form of a monopole, but the size of the feeding, transition and radiating parts can be a limiting point.

An antenna structure according to various embodiments disclosed in this document includes a plate-shaped radiation plate including a curved outer contour, a curved inner contour substantially similar to the outer contour, and a width formed between the outer contour and the inner outer contour, the radiation plate A ground plate spaced apart from and facing, a power supply part electrically connecting the radiation plate and the ground plate, a first short-circuit part spaced apart from the power supply part and electrically connecting the radiation plate and the ground plate, and A second short-circuit spaced apart from the power supply part and the first short-circuit part and electrically connecting the radiation plate and the ground plate to the radiation plate, wherein the power-feeding part, the first short-circuit part, and the second short-circuit part Each may include a long side connecting the radiation plate and the ground plate, and a short side that is in contact with the outer portion of the radiation plate at least partially along the outer edge of the radiation plate.

In an electronic device according to various embodiments disclosed in this document, in a housing and an antenna structure disposed inside the housing, a curved outer rim, a curved inner rim substantially similar to the outer rim, and a gap between the outer rim and the inner rim A plate-shaped radiation plate having a formed width, a ground plate spaced apart from the radiation plate and facing, a power supply part electrically connecting between the radiation plate and the ground plate, spaced apart from the power supply part, and the radiation plate and the ground A first short-circuit electrically connecting plates, and a second short-circuit spaced apart from the feeder and the first short-circuit and electrically connecting the radiation plate and the ground plate, In all, the first and second paragraphs each include a long side connecting the radiation plate and the ground plate and a short side at least partially in contact with the outside of the radiation plate along the outside of the radiation plate. Can contain structures.

According to various embodiments, a loop antenna that resonates in a half-wave mode may be implemented using a plurality of spaced apart short-circuits connected to a ground plane.

According to various embodiments, a broadband antenna may be miniaturized by using a plurality of spaced shorts connected to a ground plane.

According to various embodiments, multiple resonances may be implemented by forming a plurality of loops that resonate in different frequency bands through a plurality of spaced apart short-circuits.

According to various embodiments, an input impedance may be reduced using a capacitance effect between a plate-shaped radiation plate and a ground plate.

In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar elements.

1 is a perspective view of an antenna structure according to various embodiments.

2 is a side view of an antenna structure according to various embodiments.

3 is a rear view of a radiation plate according to various embodiments.

4 is a rear view of a ground plate according to various embodiments.

5 illustrates a current distribution in a half-wave mode of an antenna structure according to various embodiments.

6 shows an equivalent circuit diagram in a half-wave mode of an antenna structure according to various embodiments.

7 illustrates a current distribution in one wavelength mode of an antenna structure according to various embodiments.

8 shows an equivalent circuit diagram in one wavelength mode of an antenna structure according to various embodiments.

9 is a cross-sectional side view of a portion of an electronic device including an antenna structure according to various embodiments.

10 is a cross-sectional side view of a portion of an electronic device including an antenna structure according to various embodiments.

11 illustrates a VSWR graph of an antenna structure according to various embodiments.

12 is an efficiency graph of an antenna structure according to various embodiments.

13 illustrates an electronic device including an antenna structure according to various embodiments.

1 is a perspective view of an antenna structure 10 according to various embodiments.

Referring to FIG. 1, the antenna structure 10 includes a radiation plate support 11, a ground plate support 12, a feeder support 13, a first short support 15, a second short support 14, and An antenna 20 may be included. According to various embodiments, the antenna 20 includes at least one of the radiation plate support 11, the ground plate support 12, the feeder support 13, the first short support 15, and the second short support 14. Coupled to and/or attached to some or a combination thereof, it may be supported and form the antenna structure 10 . According to one embodiment, the radiation plate support 11, the ground plate support 12, the power supply support 13, the first short support 15 and the second short support 14 are made of a dielectric material. can include

According to various embodiments, the antenna 20 may include a conductive material such as aluminum, copper, iron, chromium, or a combination of at least some of these. According to an embodiment, the antenna 20 may include at least a portion of aluminum, copper, iron, or chromium or an alloy thereof, and at least a portion may be plated with at least a portion of aluminum, copper, iron, or chromium. The dielectric constant of the antenna 20 disclosed in this document may have various values, but for convenience, a dielectric constant value of 1.0 V/m will be described as a standard.

According to various embodiments, the antenna 20 may include a radiation plate 21 , a ground plate 22 , a power feeding part 23 , a first shorting part 25 and a second shorting part 24 . According to one embodiment, the radiation plate 21 may be supported by the radiation plate support 11, the ground plate 22 may be supported by the ground plate support 12, and the power supply 13 may be It may be supported by the power supply support part 23, the first short-circuit part 25 may be supported by the first short-circuit support part 15, and the second short-circuit part 24 may be supported by the second short-circuit support part ( 14) can be supported.

According to various embodiments, the radiation plate 21, the ground plate 22, the power supply 23, the first short-circuit 25, and/or the second short-circuit 24 may be coupled to each other at least in part. . According to one embodiment, the radiation plate 21 may be disposed on the upper side of the antenna structure 10 in the z-axis direction, and the power supply part 23, the first short-circuit part 25 and / or the second short-circuit part 24 ) and at least partially contact and electrically connected. According to one embodiment, the ground plate 22 may be disposed on the lower side of the antenna structure 10 in the z-axis direction, and the power supply part 23, the first short-circuit part 25 and / or the second short-circuit part 24 ) and at least partially contact and electrically connected. According to one embodiment, the power supply unit 23, the first short-circuit unit 25 and/or the second short-circuit unit 24 may be disposed in the z-axis direction. The power supply part 23, the first short-circuit part 25 and/or the second short-circuit part 24 are vertically connected to the radiation plate 21 and/or the ground plate 22 so that the radiation plate 21 and the ground plate (22) can be electrically connected. According to one embodiment, the radiation plate 21 and the ground plate 22 may be disposed substantially parallel to each other.

According to various embodiments, the radiation plate 21 may have a plate shape. Referring to Figure 1, it may include a plate-like shape parallel to the x-y plane. According to various embodiments, the shape of the radiation plate 21 in the z-axis direction is surrounded by a curved outer frame and a curved inner frame, and may include a width formed between the outer frame and the inner frame. According to one embodiment, the outer periphery of the radiation plate 21 may include a C-shape. The C-shape of the outside of the radiation plate 21 may be a shape corresponding to at least a part of a circumference (eg, a first circumference) having a constant radius (eg, a first radius). That is, the C-shape outside the radiation plate 21 may be an arc shape corresponding to at least a part of the first circumference. The C-shape of the inner circumference of the radiation plate 21 may be a shape corresponding to at least a part of a circumference (eg, a second circumference) having a constant radius (eg, a second radius). That is, the C-shape of the inside of the radiation plate 21 may be an arc shape corresponding to at least a part of the second circumference. According to an embodiment, shapes of the outer and inner surfaces of the radiation plate 21 may have a relationship of resemblance to each other. An outer periphery of the radiation plate 21 may be larger than an inner circumference of the radiation plate 21 . According to an embodiment, the center of the outer and inner edges of the radiation plate 21 may be the same point. According to an embodiment, the width between the outer and inner circumferences of the radiation plate 21 may be a space between the outer circumference and the inner circumference formed by a difference in size between the outer and inner circumferences of the radiation plate 21 .

According to various embodiments, the radiation plate support 11 may include a shape corresponding to the radiation plate 21 . According to an embodiment, the radiation plate support 11 may have a shape corresponding to the outer edge of the radiation plate 21 forming the outer edge of the radiation plate 21 . According to an embodiment, the radiation plate support 11 may have a shape corresponding to a first circumference corresponding to an outer circumference of the radiation plate 21 . The radiation plate support 11 may include the radiation plate 21 as a whole, that is, a circular shape equal to or larger than the first circumference of the radiation plate 21, and may include a flat plate shape having a thickness. there is.

According to various embodiments, the ground plate 22 may include a shape corresponding to the radiation plate 21 . According to one embodiment, the ground plate 22 may be disposed to face and be spaced apart from the radiation plate 21 . According to one embodiment, the ground plate 22 may be disposed substantially parallel to the radiation plate 21 . According to one embodiment, the ground plate 22 may include a circular shape equal to or larger than the first circumference of the radiation plate 22 . According to one embodiment, the ground plate 22 may include a feed point 33 at least in part. The power supply point 33 may be a point where a potential difference is formed between the ground plate 22 and the power supply unit 23 . According to one embodiment, the feed point 33 is a point at which an electrical signal from the outside is transmitted to the antenna 20 through the feed unit 23 and/or an electrical signal generated by the antenna is output to the outside of the antenna 20. may be the point at which According to one embodiment, the ground plate 22 may include at least a portion of the first short-circuit pattern 35 and/or the second short-circuit pattern 34 . The ground plate 22 may be connected to the first shorting part 25 and/or the second shorting part 24 through the first shorting pattern 35 and/or the second shorting pattern 34 . According to one embodiment, the first shorting pattern 35 and/or the second shorting pattern 34 formed on the ground plate 22 includes at least one conductive via penetrating the ground plate support 12; For example, the first conductive via 45 and/or the second conductive via 44 may be sequentially and electrically connected to the first short-circuit portion 25 and/or the second short-circuit portion 24, respectively. .

According to various embodiments, the ground plate support 12 may include a shape corresponding to the ground plate 22 . The ground plate support 12 may include the ground plate 22 as a whole, that is, a circular shape equal to or larger than the shape of the ground plate 22 , and may include a flat plate shape having a thickness.

According to various embodiments, the power supply unit 23 may electrically connect the radiation plate 21 and the ground plate 22 . According to one embodiment, the power supply unit 23 may contact the radiation plate 21 and/or the ground plate 22 at least in part. According to one embodiment, the power supply unit 23 may include a curved plate shape. According to one embodiment, the power feeding unit 23 may include a plate-like shape including a long side and a short side. According to one embodiment, the power feeding unit 23 may include a curved shape in which at least a portion of a plate shape including long and short sides is bent. For example, the power feeding unit 23 may have a plate-like shape in which long and/or short sides are curved. According to one embodiment, the power feeding unit 23 may be disposed to contact at least a portion of the radiation plate 21 through a short side. For example, the power supply unit 23 may be connected to the radiation plate 21 through an outside of the radiation plate 21 . According to one embodiment, the short side of the power supply unit 23 is bent to correspond to the curved shape of the outer edge of the radiation plate 21 , and the short side is bent and may include a plate-shaped shape in contact with the outer edge of the radiation plate 21 . According to one embodiment, the long side of the power supply unit 23 may be arranged to be vertically connected to the radiation plate 21 and/or the ground plate 22 . According to one embodiment, the power supply unit 23 may form a potential difference with the ground plate 22 through the power supply point 33 formed on the ground plate 22 .

According to various embodiments, the first short circuit 25 may electrically connect the radiation plate 21 and the ground plate 22 . According to one embodiment, the first short-circuit portion 25 may contact the radiation plate 21 and/or the ground plate 22 at least in part. According to one embodiment, the first short-circuit portion 25 may include a curved plate shape. According to one embodiment, the first short-circuit portion 25 may include a plate-like shape including a long side and a short side. According to one embodiment, the first short-circuit portion 25 may include a curved shape in which at least a portion of a plate-like shape including long and short sides is bent. For example, the first short-circuit portion 25 may have a plate-like shape in which long and/or short sides are curved. According to one embodiment, the first short-circuit portion 25 may be disposed to contact at least a portion of the radiation plate 21 through a short side. For example, the first short-circuit portion 25 may be connected to the radiation plate 21 through an outer portion of the radiation plate 21 . According to an embodiment, the short side of the first short-circuit portion 25 is bent corresponding to the curved shape of the outer edge of the radiation plate 21, and the short side is bent and may include a plate-shaped shape in contact with the outer edge of the radiation plate 21. there is. According to one embodiment, the long side of the first short-circuit portion 25 may be arranged to be vertically connected to the radiation plate 21 and/or the ground plate 22 . According to one embodiment, the first shorting portion 25 may be electrically connected to the grounding plate 22 through the first shorting pattern 35 formed on the grounding plate 22 .

According to various embodiments, the second short-circuit portion 24 may electrically connect the radiation plate 21 and the ground plate 22 . According to one embodiment, the second short-circuit portion 24 may contact the radiation plate 21 and/or the ground plate 22 at least in part. According to one embodiment, the second short-circuit portion 24 may include a curved plate shape. According to one embodiment, the second short-circuit portion 24 may include a plate-like shape including a long side and a short side. According to one embodiment, the second paragraph 24 may include a curved shape in which at least a portion of a plate shape including long and short sides is bent. For example, the second short section 24 may have a plate-like shape in which long and/or short sides are curved. According to one embodiment, the second short-circuit portion 24 may be disposed to contact at least a portion of the radiation plate 21 through a short side. For example, the second short-circuit portion 24 may be connected to the radiation plate 21 through an outer portion of the radiation plate 21 . According to an embodiment, the short side of the second short-circuit portion 24 is bent corresponding to the curved shape of the outer edge of the radiation plate 21, so that the short side is bent and may include a plate-shaped shape in contact with the outer edge of the radiation plate 21. there is. According to one embodiment, the long side of the second short-circuit portion 24 may be arranged to be vertically connected to the radiation plate 21 and/or the ground plate 22 . According to one embodiment, the second shorting portion 24 may be electrically connected to the grounding plate 22 through the second shorting pattern 34 formed on the grounding plate 22 .

The shapes of the power supply unit 23, the first short-circuit unit 25 and/or the second short-circuit unit 24 according to various embodiments disclosed in this document electrically connect the ground plate 22 and the radiation plate 21 to each other. It may include various shapes to connect, but in this document, it is described based on including a plate-shaped shape including a long side and a short side for convenience.

According to various embodiments, the power supply unit 23, the first short-circuit unit 25, and/or the second short-circuit unit 24 may be spaced apart from each other. According to one embodiment, the feed point 33, the first short-circuit pattern 35 and/or the second short-circuit pattern 34 are the feed part 23 on the ground plate 22, the first short-circuit part 25 and / Or at a position corresponding to the second paragraph 24, it may be disposed spaced apart from each other. According to one embodiment, the power supply part 23, the first short-circuit part 25 and / or the second short-circuit part 24 are spaced apart from each other at a predetermined distance along the outer edge of the radiation plate 21. ) and may be arranged to be connected to each other.

According to various embodiments, the antenna 20 may include a first antenna and a second antenna. The first antenna may be an antenna formed by sequentially disposing the power supply unit 23, the radiation plate 21, the first short circuit unit 25, and the ground plate 22 and electrically connecting them to each other. For example, the power supply unit 23, the radiation plate 21, the first short circuit unit 25, and the ground plate 22 included in the first antenna may be sequentially connected to form a first loop. there is. According to an embodiment, the first antenna may be a loop antenna including a first closed circuit. The second antenna may be an antenna formed by sequentially disposing the power supply unit 23, the radiation plate 21, the second short circuit unit 24, and the ground plate 22 and electrically connecting them to each other. For example, the power supply unit 23, the radiation plate 21, the second short circuit unit 24, and the ground plate 22 included in the second antenna may be sequentially connected to form a second loop. there is. According to an embodiment, the second antenna may be a loop antenna including a second closed circuit.

According to various embodiments, the antenna 20 may resonate in two modes (eg, multi-resonant and dual-resonant) through the first antenna and the second antenna. According to an embodiment, the resonant frequency of the first antenna and the resonant frequency of the second antenna may be different from each other. According to one embodiment, the length of the first antenna corresponds to the length of the long side of the power supply unit 23, the length from the contact point with the power supply unit 23 in the outer center of the radiation plate 21 to the contact point with the first short circuit unit 25, and A length of the first antenna including the length of the long side of the first short section 25 may be formed. The length of the first antenna may correspond to the length of a half wavelength of an operating frequency band of the first antenna. The second antenna has a length corresponding to the length of the long side of the power supply unit 23, the length from the contact point with the power supply unit 23 in the middle of the outside of the radiation plate 21 to the contact point with the second short circuit 24, and the second terminal 24 ) may form a second antenna length including a long side length. The length of the second antenna may correspond to a length of one wavelength of an operating frequency band of the second antenna. The first antenna and the second antenna may resonate at different resonant frequencies within a frequency band of 6.2 GHz to 9.7 GHz. The resonant frequency of the first antenna may be determined by the length of the first antenna. The resonant frequency of the second antenna may be determined by the length of the second antenna and/or the size of the capacitance property formed between the power supply unit 23 and the second short circuit unit 24 when power is supplied to the antenna 20. there is. The overall input impedance of the first antenna and/or the second antenna may vary depending on the size of the capacitance formed between the radiation plate 21 and the ground plate 22 . The size of the capacitance between the radiation plate 21 and the ground plate 22 may be changed by an overlapping area and/or a distance between the radiation plate 21 and the ground plate 22 . According to one embodiment, the size of the input impedance of the antenna 20 is the distance between the radiation plate 21 and/or the ground plate 22, the length of the first antenna, the length of the second antenna, and the radiation plate 21 and the ground plate. (22) and/or a combination thereof. The input impedance of the antenna 20 may be 50 ohm.

2 is a side view of an antenna structure according to various embodiments.

Referring to FIG. 2 , the antenna structure 10 of FIG. 1 may be viewed from the side.

According to various embodiments, the antenna structure 10 includes a radiation plate support 11, a ground plate support 12, a feeder support 13, a first short support 15, and a second short support 14. and an antenna (eg, the antenna 20 of FIG. 1). According to various embodiments, the antenna 20 includes at least one of the radiation plate support 11, the ground plate support 12, the feeder support 13, the first short support 15, and the second short support 14. Coupled to and/or attached to some or a combination thereof, it may be supported and form the antenna structure 10 . According to one embodiment, the radiation plate support 11, the ground plate support 12, the power supply support 13, the first short support 15 and the second short support 14 are made of a dielectric material. can include

According to various embodiments, the radiation plate support 11 may be attached to the radiation plate 21 to support the radiation plate 21 . The radiation plate support 11 may include a flat plate shape having a thickness when viewed from the side, that is, in a direction perpendicular to the z-axis. According to one embodiment, the thickness of the radiation plate support 11 may include a size of 0.5 mm. According to one embodiment, the radiation plate 21 may include a flat plate shape when viewed from the side, and the thickness of the radiation plate 21 may include a size of 35 μm.

According to various embodiments, the ground plate support 12 may be attached to the ground plate 22 to support the ground plate 22 . The ground plate support 12 may include a flat plate shape having a thickness when viewed from the side, that is, in a direction perpendicular to the z-axis. According to one embodiment, the thickness of the ground plate support 12 may include a size of 0.5 mm. According to one embodiment, the ground plate 22 may include a flat plate shape when viewed from the side, and the thickness of the ground plate 22 may include a size of 35um.

According to various embodiments, the power feeding unit support 13 may be attached to the power feeding unit (eg, the power feeding unit 23 of FIG. 1 ) to support the power feeding unit 23 . The power feeding unit support 13 may include a shape corresponding to the power feeding unit 23 , and may include, for example, a curved shape of a rectangular flat plate having long and short sides. According to an embodiment, a long side of the power feeding unit supporter 13 may be arranged to vertically connect the radiation plate supporter 11 and the ground plate supporter 12 to each other, and one end side of the radiation plate supporter 11 may be at least It may be bent to form a curved joint surface along one side, and the other end side may be bent to form a curved joint surface along at least a portion of the ground plate supporting portion 12 . According to one embodiment, the long side of the power supply support part 13 may include a length of 5.0 mm.

According to various embodiments, the first paragraph supporting portion 15 may be attached to the first paragraph portion (eg, the first paragraph portion 25 of FIG. 1 ) to support the first paragraph portion 25 . The first paragraph supporting portion 15 may include a shape corresponding to the first paragraph portion 25, and may include, for example, a shape in which a rectangular flat plate having a long side and a short side is bent. According to one embodiment, a long side of the first short-circuit support 15 may be arranged to vertically connect the radiation plate support 11 and the ground plate support 12 to each other, and one end side may be disposed to connect the radiation plate support 11 and the ground plate support 11 to each other. It may be bent to form a curved bonding surface along at least a portion of , and the other end side may be bent to form a curved bonding surface along at least a portion of the ground plate supporting portion 12 . According to one embodiment, the long side of the first short support part 15 may include a length of 5.0 mm.

According to various embodiments, the second paragraph supporting portion 14 may be attached to the second paragraph portion (eg, the second paragraph portion 24 of FIG. 1 ) to support the second paragraph portion 24 . The second paragraph supporting portion 14 may include a shape corresponding to the second paragraph portion 24, and may include, for example, a shape in which a rectangular flat plate having a long side and a short side is bent. According to one embodiment, a long side of the second short-circuit support 14 may be arranged to vertically connect the radiation plate support 11 and the ground plate support 12 to each other, and one end side may be disposed to connect the radiation plate support 11 and the ground plate support 11 to each other. It may be bent to form a curved bonding surface along at least a portion of , and the other end side may be bent to form a curved bonding surface along at least a portion of the ground plate supporting portion 12 . According to one embodiment, the long side of the second short support portion 14 may include a length of 5.0 mm.

According to various embodiments, the feeder support 13, the first short support 15, and/or the second short support 14 may be spaced apart from each other. According to one embodiment, the power supply part support 13, the first short-circuit support part 15 and/or the second short-circuit support part 14 may include the power supply part 23, the first short-circuit part 25 and/or the second short-circuit support part 14. At a position corresponding to the second paragraph 24, it may be disposed spaced apart from each other. According to one embodiment, the feeder support 13, the first short-circuit support 15, and/or the second short-circuit support 14 are spaced apart from each other at a predetermined distance along the outer edge of the radiation plate 21 to emit radiation. It may be arranged to be connected to the plate 21, respectively.

3 is a rear view of the radiation plate 21 according to various embodiments.

According to various embodiments, the radiation plate 21 may have a plate shape. Referring to Figure 3, it may include a plate-like shape parallel to the x-y plane. According to various embodiments, the shape of the radiation plate 21 in the z-axis direction is surrounded by a curved outer frame and a curved inner frame, and may include a width formed between the outer frame and the inner frame. According to one embodiment, the outer periphery of the radiation plate 21 may include a C-shape. The C-shape of the outside of the radiation plate 21 may be a shape corresponding to at least a part of a first circumference having a first radius D1+D2. That is, the C-shape outside the radiation plate 21 may be an arc shape corresponding to at least a part of the first circumference. According to an embodiment, the first radius D1+D2 may include a size of 4.5 mm. The C-shape of the inner circumference of the radiation plate 21 may be a shape corresponding to at least a part of the second circumference having the second radius D1. That is, the C-shape of the inside of the radiation plate 21 may be an arc shape corresponding to at least a part of the second circumference. According to one embodiment, the second radius D2 may include a size of 3.6 mm. According to an embodiment, shapes of the outer and inner surfaces of the radiation plate 21 may have a relationship of resemblance to each other. An outer periphery of the radiation plate 21 may be larger than an inner circumference of the radiation plate 21 . According to an embodiment, the center of the outer and inner edges of the radiation plate 21 may be the same point. According to an embodiment, the width D2 between the outer and inner circumferences of the radiation plate 21 may be a space between the outer circumference and the inner circumference formed by a difference in size between the outer and inner circumferences of the radiation plate 21 . According to one embodiment, the width D2 of the radiation plate 21 may include a diameter of 0.9 mm. For example, the width D2 of the radiation plate 21 may be formed so that the shortest distance formed between the outer circumference of the radiation plate 21 and the entire inner circumference corresponding to the entire outer periphery is 0.9 mm.

According to various embodiments, the radiation plate support 11 may include a shape corresponding to the radiation plate 21 . According to an embodiment, the radiation plate support 11 may have a shape corresponding to the outer edge of the radiation plate 21 forming the outer edge of the radiation plate 21 . According to an embodiment, the radiation plate support 11 may have a shape corresponding to a first circumference corresponding to an outer circumference of the radiation plate 21 . The radiation plate support 11 may include the radiation plate 21 as a whole, that is, a circular shape equal to or larger than the first circumference of the radiation plate 21, and may include a flat plate shape having a thickness. there is. According to an embodiment, the radiation plate support 11 may have a circular shape having a third radius (D1+D2+D3). The radiation plate support 11 includes the same center as the outer edge of the radiation plate 21 and has a third radius (D1+) greater than the radius (eg, the first radius (D1+D2)) of the outer edge of the radiation plate 21. D2+D3) may be circular. According to one embodiment, D3 may be 0.5 mm.

According to various embodiments, the power feeding unit (eg, the power feeding unit 23 of FIG. 1 ) may contact the radiation plate 21 at least in part. For example, the power supply unit 23 may be connected to the radiation plate 21 through an outside of the radiation plate 21 . According to an embodiment, a portion of the power supply unit 23 is bent to correspond to a curved shape of the outer edge of the radiation plate 21 and may include a shape in contact with at least a portion of the outer edge of the radiation plate 21 . According to an embodiment, the power supply unit 23 may be disposed to be in contact with a predetermined length from one end of the outer edge of the radiation plate 21 along the outer edge of the radiation plate 21 . According to an embodiment, the power feeding unit 23 may be disposed to be in contact with a first length (eg, length L1) along the outer edge of the radiation plate 21 from one end of the outer edge of the radiation plate 21 . The length L1 may have a size of 2.0 mm, for example.

According to various embodiments, the first short-circuit portion (eg, the first short-circuit portion 25 of FIG. 1 ) may contact the radiation plate 21 at least in part. For example, the first short-circuit portion 25 may be connected to the radiation plate 21 through an outer portion of the radiation plate 21 . According to an embodiment, a portion of the first short-circuit portion 25 is bent to correspond to a curved shape of the outer edge of the radiation plate 21 and may include a shape in contact with at least a portion of the outer edge of the radiation plate 21 . According to one embodiment, the first short-circuit part 25 is spaced apart from the contact point of the radiation plate 21 and the power supply part 23 by a first curved distance (eg, length L2) along the outer edge of the radiation plate 21. From the point, it may be arranged to be in contact with the second length (eg, length L3) along the outer circumference of the radiation plate 21 . The length L3 may have a size of 2.0 mm, for example. According to an embodiment, the distance (for example, the length L2 ) at which the power supply unit 23 and the first short-circuit unit 25 are spaced along the outer circumference of the radiation plate 21 may have a size of 17.9 mm.

According to various embodiments, the second short-circuit portion (eg, the second short-circuit portion 24 of FIG. 1 ) may contact the radiation plate 21 at least in part. For example, the second short-circuit portion 24 may be connected to the radiation plate 21 through an outer portion of the radiation plate 21 . According to an embodiment, a portion of the second short-circuit portion 24 is bent to correspond to a curved shape of the outer edge of the radiation plate 21 and may include a shape in contact with at least a portion of the outer edge of the radiation plate 21 . According to one embodiment, the second short-circuit portion 24 extends from the contact point between the radiation plate 21 and the first short-circuit portion 25 along the outer edge of the radiation plate 21 by a second curved distance (eg, length L4). It may be disposed to be in contact with the third length (eg, length L5) along the outer periphery of the radiation plate 21 from the spaced apart point. The length L5 may have a size of 2.0 mm, for example. According to an embodiment, the distance (for example, the length L4 ) at which the first short-circuit part 25 and the second short-circuit part 24 are spaced along the outer periphery of the radiation plate 21 may have a size of 2.1 mm.

4 is a rear view of a ground plate according to various embodiments.

According to various embodiments, a ground plate (eg, ground plate 22 of FIG. 1 ) may be attached to the ground plate support 12 , and the ground plate support 12 may have a shape corresponding to that of the ground plate 22 . can include According to an embodiment, the ground plate 22 and/or the ground plate support 12 may include a shape corresponding to a radiation plate (eg, the radiation plate 21 of FIG. 1 ). According to one embodiment, the ground plate 22 may be disposed substantially parallel to the radiation plate 21 . According to one embodiment, the ground plate 22 may include a circular shape equal to or larger than the first circumference of the radiation plate 21 . According to one embodiment, the ground plate 22 may include a feed point 33 at least in part. The power supply point 33 may be a point where a potential difference is formed between the ground plate 22 and the power supply unit (eg, the power supply unit 23 of FIG. 1 ). According to one embodiment, the feed point 33 is a point at which an electrical signal from the outside is transferred to an antenna (eg, the antenna 20 of FIG. 1) through the feed unit 23 and/or an electrical signal generated by the antenna. may be a point where is output to the outside of the antenna 20. According to one embodiment, the ground plate 22 may include at least a portion of the first short-circuit pattern 35 and/or the second short-circuit pattern 34 . The ground plate 22 connects the first short circuit (eg, the first short circuit 25 in FIG. 1 ) and/or the second short circuit through the first short circuit pattern 35 and/or the second short circuit pattern 34. (eg, the second paragraph 24 of FIG. 1). According to an embodiment, the ground plate 22 may have a shape corresponding to the first circumference corresponding to the outer periphery of the radiation plate 21 . The ground plate 22 may include the radiation plate 21 as a whole, that is, a circular shape larger than the first circumference of the radiation plate 21 , and may include a flat plate shape having a thickness. According to one embodiment, the ground plate 22 may be circular with a fourth radius (eg, D9), and D9 may have a size of, for example, 6.05 mm.

According to various embodiments, the power supply unit 23, the first short-circuit unit 25, and/or the second short-circuit unit 24 may be spaced apart from each other. According to one embodiment, the feed point 33, the first short-circuit pattern 35 and/or the second short-circuit pattern 34 are the feed part 23 on the ground plate 22, the first short-circuit part 25 and / Or at a position corresponding to the second paragraph 24, it may be disposed spaced apart from each other. According to one embodiment, the power supply part 23, the first short-circuit part 25 and / or the second short-circuit part 24 are spaced apart from each other at a predetermined distance along the outer edge of the radiation plate 21. ) and may be arranged to be connected to each other. According to one embodiment, the feed point 33, the first short-circuit pattern 35 and/or the second short-circuit pattern 34 may be disposed at positions spaced apart from the center of the ground plate 22 by a predetermined distance, respectively. . For example, the feed point 33 may be disposed at a position spaced apart by a distance of D4 from the center of a circle of the ground plate 22 . D4 may have a size of 4.48 mm, for example. For example, the first short circuit pattern 35 may be disposed between a position spaced apart by a distance D7 and a position spaced apart by a distance D8 from the center of the circle of the ground plate 22 . D7 may have a size of 4.28 mm, for example. D8 may have a size of 4.68 mm, for example. For example, the second short circuit pattern 34 may be disposed between a position spaced apart by a distance D5 and a position spaced apart by a distance D6 from the center of the circle of the ground plate 22 . D5 may have a size of 4.28 mm, for example. D6 may have a size of 4.68 mm, for example.

5 illustrates a current distribution in a half-wave mode of an antenna according to various embodiments.

6 shows an equivalent circuit diagram of an antenna in a half-wave mode according to various embodiments.

Referring to FIGS. 5 and 6 , the antenna 20 (eg, the antenna 20 of FIG. 1 ) may include a first antenna and a second antenna. The first antenna 201 includes a power supply unit 23 (eg, the power supply unit 23 of FIG. 1 ), a radiation plate 21 (eg, the radiation plate 21 of FIG. 1 ), and a first short circuit unit 25 ) (eg, the first paragraph 25 of FIG. 1) and the ground plate 22 (eg, the ground plate 22 of FIG. 1) are sequentially disposed and electrically connected to each other. For example, the power supply unit 23, the radiation plate 21, the first short circuit unit 25, and the ground plate 22 included in the first antenna 201 are sequentially connected to form a first loop. can form According to one embodiment, the first antenna 201 may be a loop antenna including a first closed circuit. In the second antenna, the power supply unit 23, the radiation plate 21, the second short-circuit unit (eg, the second short-circuit unit 24 in FIG. 1), and the ground plate 22 are sequentially disposed and electrically connected to each other. It may be an antenna formed by being. For example, the power supply unit 23, the radiation plate 21, the second short circuit unit 24, and the ground plate 22 included in the second antenna may be sequentially connected to form a second loop. there is. According to an embodiment, the second antenna may be a loop antenna including a second closed circuit.

According to various embodiments, the antenna 20 may resonate in two modes (eg, multi-resonant and dual-resonant) through the first antenna and the second antenna. According to an embodiment, the resonant frequency of the first antenna and the resonant frequency of the second antenna may be different from each other. According to one embodiment, the length of the first antenna corresponds to the length of the long side of the power supply unit 23, the length from the contact point with the power supply unit 23 in the outer center of the radiation plate 21 to the contact point with the first short circuit unit 25, and A length of the first antenna including the length of the long side of the first short section 25 may be formed. The length of the first antenna may correspond to the length of a half wavelength of an operating frequency band of the first antenna. The second antenna has a length corresponding to the length of the long side of the power supply unit 23, the length from the contact point with the power supply unit 23 in the middle of the outside of the radiation plate 21 to the contact point with the second short circuit 24, and the second terminal 24 ) may form a second antenna length including a long side length. The length of the second antenna may correspond to a length of one wavelength of an operating frequency band of the second antenna. The first antenna and the second antenna may resonate at different resonant frequencies within a frequency band of 6.2 GHz to 9.7 GHz. The resonant frequency of the first antenna may be determined by the length of the first antenna. The resonant frequency of the second antenna may be determined by the length of the second antenna and/or the size of the capacitance property formed between the power supply unit 23 and the second short circuit unit 24 when power is supplied to the antenna 20. there is. The overall input impedance of the first antenna and/or the second antenna may vary depending on the size of the capacitance formed between the radiation plate 21 and the ground plate 22 . The size of the capacitance between the radiation plate 21 and the ground plate 22 may be changed by an overlapping area and/or a distance between the radiation plate 21 and the ground plate 22 .

Referring to FIG. 5 , the first antenna (eg, the first antenna 201 of FIG. 6 ) may resonate in a band including a center frequency of about 6.5 GHz. When the first antenna 201 resonates, a point (first null-point 51) at which the flow of current becomes substantially 0 A/m may be formed at one point of the radiation plate 21. there is. Referring to FIG. 5, the first antenna 201 forms one null-point in the center frequency band of 6.5 GHz, has one node and resonates, and therefore can resonate in the half-wave mode at the length of the first antenna. there is.

Referring to FIG. 6 , in the equivalent circuit of the first antenna 201, the power supply 23, the radiation plate 21, the first short-circuit 25 and the ground plate 22 are connected from the power supply point 33. 1 A closed circuit is formed, and current can be input or output through the feed point 33. When the first antenna 201 resonates, the current of the first path 61 flows from the feed point 33 to the first null-point 51, and from the first short-circuit pattern 35 to the first null-point 51. ) can form the current of the second path 62 flowing in the direction.

7 illustrates a current distribution in one wavelength mode of an antenna according to various embodiments.

8 is an equivalent circuit diagram of an antenna in one wavelength mode according to various embodiments.

Referring to FIGS. 7 and 8 , the antenna 20 (eg, the antenna 20 of FIG. 1 ) may include a first antenna and a second antenna. The first antenna (eg, the first antenna 201 in FIG. 6 ) includes a power supply unit 23 (eg, the power supply unit 23 in FIG. 1 ), a radiation plate 21 (eg, a radiation plate in FIG. 1 ( 21)), the first short-circuit 25 (eg, the first short-circuit 25 of FIG. 1) and the ground plate 22 (eg, the ground plate 22 of FIG. 1) are sequentially arranged to electrically It may be an antenna formed by being connected to. For example, the power supply unit 23, the radiation plate 21, the first short circuit unit 25, and the ground plate 22 included in the first antenna 201 are sequentially connected to form a first loop. can form According to one embodiment, the first antenna 201 may be a loop antenna including a first closed circuit. The second antenna (eg, the second antenna 202 in FIG. 8) includes a power supply unit 23, a radiation plate 21, a second short-circuit unit (eg, the second short-circuit 24 in FIG. 1) and a ground. It may be an antenna formed by sequentially disposing the plates 22 and electrically connecting them to each other. For example, the power supply part 23, the radiation plate 21, the second short circuit part 24, and the ground plate 22 included in the second antenna 202 are sequentially connected to form a second loop. can form According to an embodiment, the second antenna may be a loop antenna including a second closed circuit.

According to various embodiments, the antenna 20 may resonate in two modes (eg, multi-resonant and dual-resonant) through the first antenna and the second antenna. According to an embodiment, the resonant frequency of the first antenna and the resonant frequency of the second antenna may be different from each other. According to one embodiment, the length of the first antenna corresponds to the length of the long side of the power supply unit 23, the length from the contact point with the power supply unit 23 in the outer center of the radiation plate 21 to the contact point with the first short circuit unit 25, and A length of the first antenna including the length of the long side of the first short section 25 may be formed. The length of the first antenna may correspond to the length of a half wavelength of an operating frequency band of the first antenna. The second antenna has a length corresponding to the length of the long side of the power supply unit 23, the length from the contact point with the power supply unit 23 in the middle of the outside of the radiation plate 21 to the contact point with the second short circuit 24, and the second terminal 24 ) may form a second antenna length including a long side length. The length of the second antenna may correspond to a length of one wavelength of an operating frequency band of the second antenna. The first antenna and the second antenna may resonate at different resonant frequencies within a frequency band of 6.2 GHz to 9.7 GHz. The resonant frequency of the first antenna may be determined by the length of the first antenna. The resonant frequency of the second antenna may be determined by the length of the second antenna and/or the size of the capacitance property formed between the power supply unit 23 and the second short circuit unit 24 when power is supplied to the antenna 20. there is. The overall input impedance of the first antenna and/or the second antenna may vary depending on the size of the capacitance formed between the radiation plate 21 and the ground plate 22 . The size of the capacitance between the radiation plate 21 and the ground plate 22 may be changed by an overlapping area and/or a distance between the radiation plate 21 and the ground plate 22 .

Referring to FIG. 7 , the first antenna (eg, the first antenna 201 of FIG. 8 ) may resonate in a band including a center frequency of about 8.0 GHz. The point at which the flow of current becomes substantially 0 A/m at two points of the radiation plate 21 at resonance of the first antenna 201 (the second null-point 71 and/or the third null-point 72 )) can be formed. Referring to FIG. 7, the second antenna 202 forms two null-points (eg, the second null-point 71 and/or the third null-point 72) in the center frequency band of 8.0 GHz. Thus, it has two nodes and resonates, so it can resonate in one wavelength mode at the second antenna length.

Referring to FIG. 8, in the equivalent circuit of the second antenna 202, the power supply point 33 is connected to the power supply unit 23, the radiation plate 21, the second short circuit unit 24, and the ground plate 22. 2 A closed circuit is formed, and current can be input or output through the feed point 33. When the second antenna 202 resonates, the current of the third path 81 flows from the second null-point 71 to the feed point 33, and from the second null-point 71 to the third null-point ( 72), a current of the fourth path 82 may flow, and a current of the fifth path 83 may be formed from the second short-circuit pattern 34 toward the third null-point 72. According to an embodiment, an electric field may be formed as the current distribution of the current of the third path 81 and the current of the fifth path 83 is asymmetrically formed in one wavelength mode. A capacitance effect is generated between the power feeding part 23 and the second short-circuit part 24 by the formed electric field, and the impedance of the antenna 20 can be determined due to the generated capacitance effect and the length of the second antenna.

9 is a cross-sectional side view of a portion of an electronic device including an antenna structure according to various embodiments.

9 may be a side cross-sectional view of a portion of an electronic device 900 .

According to various embodiments, the electronic device 900 may be a wireless communication device. For example, the electronic device 900 may be a portable wireless communication device that performs wireless communication, such as a smart phone, a true wireless stereo (TWS), or a smart watch.

Referring to FIG. 9 , an electronic device 900 including an antenna structure 10 (eg, the antenna structure 10 of FIG. 1 ) includes an antenna 20 (eg, the antenna 20 of FIG. 1 ), a housing 910, a battery 920, and a printed circuit board 930 may be included.

The housing 910 constitutes the exterior of the electronic device 900, and other components of the electronic device 900, for example, the antenna 20, the battery 920, and/or the printed circuit board 930, are inside. can be included in Among the components of the antenna structure 10 according to various embodiments, the housing 910 includes a support excluding the antenna 20, for example, the radiation plate support 11 and the ground plate support 12 of FIG. The front support part 13, the first short support part 15 and / or the second short support part 14 and mutually replaceable or similar components may be included at least in part. According to one embodiment, the housing 910 may include a dielectric.

According to various embodiments, the antenna 20 may be disposed inside the housing 910 . According to one embodiment, the antenna 20 may be disposed on the inner surface of the housing 910 and attached and/or physically coupled thereto. The antenna 20 may include a radiation plate 21 , a ground plate 22 , a power feeding part 23 , a first shorting part 25 and/or a second shorting part 24 . The antenna 20 may be electrically connected to the printed circuit board 930 at least in part. For example, through at least a portion of the printed circuit board 930 and a conductive member, for example, the first conductive member 953, the second conductive member 955, and/or the third conductive member 954, the antenna The power supply unit 23, the first short-circuit unit 25 and/or the second short-circuit unit 24 of (20) may be sequentially and electrically connected to at least a portion of the printed circuit board 930, respectively. According to an embodiment, the ground plate 22 may be attached to at least a portion of the printed circuit board 930 or printed as a conductive pattern on at least a portion of the printed circuit board 930 . According to one embodiment, the ground plate 22 may be disposed on one surface of the printed circuit board 930 in a direction opposite to the radiation plate 21 with respect to the printed circuit board 930 . The first shorting pattern 35 and/or the second shorting pattern 34 formed on the ground plate may include at least one conductive via penetrating the printed circuit board 930, for example, the first conductive via ( 904) and/or the second conductive via 905 may be sequentially and electrically connected to the first short-circuit portion 25 and/or the second short-circuit portion 24, respectively.

According to various embodiments, the printed circuit board 930 may include a printed conductive pattern. The conductive pattern may form an integrated circuit, and the circuit printed with the conductive pattern may include at least a communication circuit. The communication circuitry may support communication schemes including UWB, Bluetooth, and/or Bluetooth low-energy (BLE). The communication circuit may receive an external radio signal from the antenna 20 and may radiate a radio signal to the outside through the antenna 20 by feeding power to the antenna 20 . According to one embodiment, the communication circuitry is operable for use in a communication system based on IEEE 802.15.3a. According to one embodiment, the communication circuit is a high band defined in a direct sequence-ultra wide band (DS-UWB) method and/or a band group defined in a multiband-orthogonal frequency division multiplexing (MB-OFDM) method. 3 and band group 4. According to one embodiment, the printed circuit board 930 may include the ground plate 22 of the antenna 20 on at least a part thereof.

According to various embodiments, the battery 920 may supply power to the printed circuit board 930 and/or the antenna 920 . According to an embodiment, the battery 920 may be electrically connected to the printed circuit board 930 through a conductive member (eg, the fourth conductive member 940). According to one embodiment, the battery 920 may include a primary battery or a secondary battery. According to one embodiment, the battery 920 may include a coin battery shape.

10 is a cross-sectional side view of a portion of an electronic device including an antenna structure according to various embodiments.

10 may be a side cross-sectional view of a portion of an electronic device 900 .

According to various embodiments, the electronic device 900 may be a wireless communication device. For example, the electronic device 900 may be a portable wireless communication device that performs wireless communication, such as a smart phone, a true wireless stereo (TWS), or a smart watch.

Referring to FIG. 10, an electronic device 900 including an antenna structure 10 (eg, the antenna structure 10 of FIG. 1) includes an antenna 20 (eg, the antenna 20 of FIG. 1), a housing 910, a battery 920, and a printed circuit board 930 may be included.

The housing 910 constitutes the exterior of the electronic device 900, and other components of the electronic device 900, for example, the antenna 20, the battery 920, and/or the printed circuit board 930, are inside. can be included in Among the components of the antenna structure 10 according to various embodiments, the housing 910 includes a support excluding the antenna 20, for example, the radiation plate support 11 and the ground plate support 12 of FIG. The front support part 13, the first short support part 15 and / or the second short support part 14 and mutually replaceable or similar components may be included at least in part. According to one embodiment, the housing 910 may include a dielectric.

According to various embodiments, the antenna 20 may be disposed inside the housing 910 . According to one embodiment, the antenna 20 may be disposed on the inner surface of the housing 910 and attached and/or physically coupled thereto. The antenna 20 may include a radiation plate 21 , a ground plate 22 , a power feeding part 23 , a first shorting part 25 and/or a second shorting part 24 . The antenna 20 may be electrically connected to the printed circuit board 930 at least in part. For example, through at least a portion of the printed circuit board 930 and a conductive member, for example, the first conductive member 953, the second conductive member 955, and/or the third conductive member 954, the antenna The power supply unit 23, the first short-circuit unit 25 and/or the second short-circuit unit 24 of (20) may be sequentially and electrically connected to at least a portion of the printed circuit board 930, respectively. According to one embodiment, the ground plate 22 may be attached to at least a portion of the battery 920 or may be at least a portion of the side of the battery 920 . According to one embodiment, the power supply point 33, the first short-circuit pattern 35, and/or the second short-circuit pattern 34 are connected to the battery 920 and a plurality of conductive members, for example, a fifth conductive member ( 943), the sixth conductive member 945, and the seventh conductive member 944 may be sequentially connected. According to an embodiment, the first shorting pattern 35 and/or the second shorting pattern 34 includes at least one conductive via penetrating the printed circuit board 930, for example, the first shorting pattern 34. Through the via 904 and/or the second conductive via 905, the first short-circuit portion 25 and/or the second short-circuit portion 24 may be sequentially and electrically connected.

According to various embodiments, the printed circuit board 930 may include a printed conductive pattern. The conductive pattern may form an integrated circuit, and the circuit printed with the conductive pattern may include at least a communication circuit. The communication circuitry may support communication schemes including UWB, Bluetooth, and/or Bluetooth low-energy (BLE). The communication circuit may receive an external radio signal from the antenna 20 and may radiate a radio signal to the outside through the antenna 20 by feeding power to the antenna 20 . According to one embodiment, the communication circuitry is operable for use in a communication system based on IEEE 802.15.3a. According to one embodiment, the communication circuit is a high band defined in a direct sequence-ultra wide band (DS-UWB) method and/or a band group defined in a multiband-orthogonal frequency division multiplexing (MB-OFDM) method. 3 and band group 4.

According to various embodiments, the battery 920 may supply power to the printed circuit board 930 and/or the antenna 920 . According to an embodiment, the battery 920 may be electrically connected to the printed circuit board 930 through a conductive member (eg, the fourth conductive member 940). According to one embodiment, the battery 920 may include a primary battery or a secondary battery. According to one embodiment, the battery 920 may include a coin battery shape. According to one embodiment, the battery 920 may include the ground plate 22 of the antenna 20 at least in part.

11 illustrates a VSWR graph of an antenna structure according to various embodiments.

Referring to FIG. 11 , a voltage standing wave ratio (VSWR) of an antenna structure (eg, the antenna structure 10 of FIG. 1 ) may be experimentally measured or may be obtained as a simulation result according to a virtual model.

Referring to FIG. 11 , the VSWR value of the antenna structure 10 may have a value less than or equal to 2 in a frequency band of about 6.5 GHz to 9.4 GHz based on an experimental measurement value 1101 .

Referring to FIG. 11 , the VSWR value of the antenna structure 10 may have a value less than or equal to 2 in a frequency band of about 6.2 GHz to 9.6 GHz based on the simulation result measurement value 1102 .

Based on the experimental measurement value 1101 and/or the simulation result measurement value 1102, the antenna structure 10 and/or an electronic device including the antenna structure 10 (e.g., the electronic device of FIGS. 9 and 10) Apparatus 900 may operate with a VSWR value less than 2 in a communication system based on IEEE 802.15.3a. Based on the experimental measurement value 1101 and/or the simulation result measurement value 1102, the antenna structure 10 and/or an electronic device including the antenna structure 10 (e.g., the electronic device of FIGS. 9 and 10) The apparatus 900) is a high band defined by the direct sequence-ultra wide band (DS-UWB) scheme and/or a band group 3 and band defined by the multiband-orthogonal frequency division multiplexing (MB-OFDM) scheme. In group 4, it can operate with a VSWR value less than 2.

12 is an efficiency graph of an antenna structure according to various embodiments.

FIG. 12 may show antenna efficiency 1200 of an antenna structure (eg, the antenna structure 10 of FIG. 1 ).

Referring to FIG. 12 , the antenna structure 10 may operate with an efficiency of 88% or more in a range including a frequency band of about 6.2 GHz to about 9.6 GHz.

Referring to FIG. 12, an antenna structure 10 and/or an electronic device including the antenna structure 10 (eg, the electronic device 900 of FIGS. 9 and 10) communicates based on IEEE 802.15.3a. The system can operate with an efficiency value of 88% or more. Based on the experimental measurement value 1101 and/or the simulation result measurement value 1102, the antenna structure 10 and/or an electronic device including the antenna structure 10 (e.g., the electronic device of FIGS. 9 and 10) The apparatus 900) is a high band defined by the direct sequence-ultra wide band (DS-UWB) scheme and/or a band group 3 and band defined by the multiband-orthogonal frequency division multiplexing (MB-OFDM) scheme. In group 4, it can operate with an efficiency value of 88% or more.

13 illustrates an electronic device including an antenna structure according to various embodiments.

Referring to FIG. 13 , the electronic device 100 (eg, the electronic device 900 of FIGS. 9 and 10 ) may be a portable wireless earbud.

Referring to FIG. 13 , an electronic device 100 including an antenna structure (eg, the antenna structure 10 of FIG. 1 ) includes a housing 101 (eg, the housing 910 of FIGS. 9 and 10 ), a battery 110 ) (eg, the battery 920 of FIGS. 9 and 10) and/or a printed circuit board (eg, the printed circuit board 930 of FIGS. 9 and 10). According to various embodiments, the antenna structure 10 may be disposed inside the housing 101 . When the electronic device 100 is worn by the user, the antenna structure 10 may be disposed in a direction away from the user based on the battery 110 and/or the printed circuit board 120 . According to an embodiment, the antenna structure 10 may be disposed on at least a partial region (eg, the first region 130) of the inner surface of the housing 101. The first region 130 may be a region including a position corresponding to the position of the battery 110 and/or the printed circuit board 120 among the regions included in the inner surface of the housing 101 .

An antenna structure according to various embodiments disclosed in this document includes a plate-shaped radiation plate including a curved outer contour, a curved inner contour substantially similar to the outer contour, and a width formed between the outer contour and the inner outer contour, the radiation plate A ground plate spaced apart from and facing, a power supply part electrically connecting the radiation plate and the ground plate, a first short-circuit part spaced apart from the power supply part and electrically connecting the radiation plate and the ground plate, and A second short-circuit spaced apart from the power supply part and the first short-circuit part and electrically connecting the radiation plate and the ground plate to the radiation plate, wherein the power-feeding part, the first short-circuit part, and the second short-circuit part Each may include a long side connecting the radiation plate and the ground plate, and a short side that is in contact with the outer portion of the radiation plate at least partially along the outer edge of the radiation plate.

In addition, the circumference of the radiation plate includes a C-shape corresponding to at least a part of a first circumference having a first radius, and the inner circumference of the radiation plate shares a center with the first circumference and is smaller than the first circumference. It may include a C-shape corresponding to at least a part of the second circumference having a second radius of the size.

In addition, the width formed between the outer frame and the inner frame is formed by a difference between the lengths of the first radius and the second radius, and the long side of the feeding part extends from one end of the outer edge of the radiation plate to the outer edge of the radiation plate and the first length. The first short-circuit part is disposed so that its long side contacts the outer edge of the radiation plate and a second length from a position spaced apart by a first curved distance along the outer edge of the radiation plate from the power supply unit, The second short-circuit portion may be disposed such that a long side of the second short-circuit portion is in contact with the outer portion of the radiation plate over a third length from a position spaced apart from the first short-circuit portion by a second curved distance along the outer edge of the radiation plate.

In addition, a first antenna including a first loop formed by sequentially electrically connecting the feeder connected to the ground plate, the radiation plate, the first short-circuit part, and the ground plate, and to the ground plate A second antenna including a second closed circuit formed by sequentially electrically connecting the connected power supply unit, the radiation plate, the second short circuit unit, and the ground plate may be included.

In addition, the first antenna includes a length of a long side of the feeding part, a length corresponding to a distance from a contact point with the feeding part to a contact point with the first short-circuit part, and a length of a long side of the first short-circuit part, in the middle of the radiating plate. A first antenna length corresponding to a half-wave length of an operating frequency band of the first antenna, and the second antenna is a length of a long side of the feeder and an outer circumference of the radiation plate. forming a second antenna length including a length corresponding to a distance from a point of contact with the feeding part to a point of contact with the second short-circuit part and a length of a long side of the second short-circuit part, wherein the second antenna length is equal to the length of the second antenna It may be formed to correspond to one wavelength of the operating frequency band of .

In addition, the first antenna and the second antenna may be formed to resonate in a frequency band of 6.2 GHz to 9.7 GHz.

Also, the first antenna and the second antenna may be formed to multi-resonate in different frequency bands.

In addition, the ground plate has a circular plate shape, the feeding part is electrically connected to the ground plate through a feeding point formed on at least a part of the ground plate, and the first short circuit part is connected to the circle on the ground plate. It is electrically connected to the ground plate through a first point forming a distance equal to the distance from the center and the center of the circle to the feed point, and the second short circuit is spaced apart from the feed point and the first point, It may be electrically connected to the ground plate through a second point forming the same distance as the center of the circle and the distance from the center of the circle to the feeding point.

In addition, each of the power feeding part, the first short-circuit part, and the second short-circuit part is bent along a long side substantially perpendicular to the radiation plate and the ground plate and along an outer circumference of the radiating plate, and at least a part of the outermost part of the radiating plate. It may include a curved plate-like shape including a short side in contact with.

In an electronic device according to various embodiments disclosed in this document, in a housing and an antenna structure disposed inside the housing, a curved outer rim, a curved inner rim substantially similar to the outer rim, and a gap between the outer rim and the inner rim A plate-shaped radiation plate having a formed width, a ground plate spaced apart from the radiation plate and facing, a power supply part electrically connecting between the radiation plate and the ground plate, spaced apart from the power supply part, and the radiation plate and the ground A first short-circuit electrically connecting plates, and a second short-circuit spaced apart from the feeder and the first short-circuit and electrically connecting the radiation plate and the ground plate, In all, the first and second paragraphs each include a long side connecting the radiation plate and the ground plate and a short side at least partially in contact with the outside of the radiation plate along the outside of the radiation plate. Can contain structures.

In addition, the electronic device can operate so that it can be used in a communication system based on IEEE 802.15.3a.

In addition, the electronic device uses a high band defined by a direct sequence-ultra wide band (DS-UWB) method and/or a band group 3 and band defined by a multiband-orthogonal frequency division multiplexing (MB-OFDM) method. It can operate in group 4.

In addition, a printed circuit board including a communication circuit may be included, and the ground plate may be disposed on at least a portion of the printed circuit board.

In addition, a battery may be included to supply power to the power supply unit, and the ground plate may be disposed on at least a portion of the battery.

Also, the electronic device may include a wireless sound device.

In addition, the circumference of the radiation plate includes a C-shape corresponding to at least a part of a first circumference having a first radius, and the inner circumference of the radiation plate shares a center with the first circumference and is smaller than the first circumference. It may include a C-shape corresponding to at least a part of the second circumference having a second radius of the size.

In addition, a first antenna including a first loop formed by sequentially electrically connecting the feeder connected to the ground plate, the radiation plate, the first short-circuit part, and the ground plate, and to the ground plate A second antenna including a second closed circuit formed by sequentially electrically connecting the connected power supply unit, the radiation plate, the second short circuit unit, and the ground plate may be included.

In addition, each of the power feeding part, the first short-circuit part, and the second short-circuit part is bent along a long side substantially perpendicular to the radiation plate and the ground plate and along an outer circumference of the radiating plate, and at least a part of the outermost part of the radiating plate. It may include a curved plate-like shape including a short side in contact with.

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish a given component from other corresponding components, and may be used to refer to a given component in another aspect (eg, importance or order) is not limited. A (e.g., first) component is said to be "coupled" or "connected" to another (e.g., second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may be connected to the other component directly (eg by wire), wirelessly, or through a third component.

The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document provide one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (eg, the program 140) including them. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' only means that the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

According to one embodiment, the method according to various embodiments disclosed in this document may be included and provided in a computer program product. Computer program products may be traded between sellers and buyers as commodities. A computer program product is distributed in the form of a device-readable storage medium (e.g. compact disc read only memory (CD-ROM)), or through an application store (e.g. Play Store™) or on two user devices (e.g. It can be distributed (eg downloaded or uploaded) online, directly between smart phones. In the case of online distribution, at least part of the computer program product may be temporarily stored or temporarily created in a device-readable storage medium such as a manufacturer's server, an application store server, or a relay server's memory.

According to various embodiments, each component (eg, module or program) of the above-described components may include a single object or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. there is. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. . According to various embodiments, the actions performed by a module, program, or other component are executed sequentially, in parallel, iteratively, or heuristically, or one or more of the actions are executed in a different order, or omitted. or one or more other actions may be added.

Claims (15)

1. In the antenna structure,

   a plate-shaped radiation plate including a curved outer contour, a curved inner contour substantially similar to the outer contour, and a width formed between the outer contour and the inner outer contour;

   a ground plate spaced apart from the radiation plate and facing;

   a power supply unit electrically connecting the radiation plate and the ground plate;

   a first short circuit spaced apart from the power supply unit and electrically connecting the radiation plate and the ground plate; and

   A second short-circuit spaced apart from the feeder and the first short-circuit and electrically connecting the radiation plate and the ground plate;

   Each of the power feeding part, the first short-circuit part, and the second short-circuit part includes a long side connecting the radiation plate and the ground plate, and a short side at least partially in contact with the outside of the radiation plate along the outside of the radiation plate. antenna structure.
2. According to claim 1,

   The circumference of the radiation plate includes a C-shape corresponding to at least a part of a first circumference having a first radius,

   The inner circumference of the radiation plate includes a C-shape corresponding to at least a part of a second circumference that shares a center with the first circumference and has a second radius smaller than the first circumference.
3. According to claim 2,

   The width formed between the outer frame and the inner frame is formed by a difference in length between the first radius and the second radius,

   The feeder is disposed such that a long side of the power supply part is in contact with the outer edge of the radiation plate over a first length from one end of the outer edge of the radiation plate,

   The first short-circuit part is disposed so that its long side is in contact with the outer edge of the radiation plate and a second length from a position spaced apart from the power supply part by a first curved distance along the outer edge of the radiation plate,

   The antenna structure of claim 1, wherein the second short-circuit part is arranged so that the long side contacts the outer edge of the radiation plate and the third length from a position spaced apart from the first short-circuit part by a second curved distance along the outer edge of the radiation plate.
4. According to claim 1,

   a first antenna including a first loop formed by sequentially electrically connecting the feeder connected to the ground plate, the radiation plate, the first short-circuit part, and the ground plate; and

   An antenna structure including a second antenna including a second closed circuit formed by sequentially electrically connecting the feeding part connected to the ground plate, the radiation plate, the second short-circuit part, and the ground plate.
5. According to claim 4,

   The first antenna includes a length of a long side of the feeding part, a length corresponding to a distance from a contact point with the feeding part to a contact point with the first short-circuit part, and a length of a long side of the first short-circuit part in the middle of the radiating plate. 1 forming an antenna length,

   The first antenna length is formed to correspond to a half-wave length of an operating frequency band of the first antenna,

   The second antenna includes a length of a long side of the feeding part, a length corresponding to a distance from a contact point with the feeding part to a contact point with the second short-circuit part, and a length of a long side of the second short-circuit part in the middle of the radiation. forming the antenna length;

   The second antenna length is formed to correspond to the length of one wavelength of the operating frequency band of the second antenna antenna structure.
6. According to claim 4,

   The first antenna and the second antenna are formed to resonate in a frequency band of 6.2 GHz to 9.7 GHz.
7. According to claim 4,

   The first antenna and the second antenna are formed to multi-resonate in different frequency bands.
8. According to claim 1,

   The ground plate has a circular plate shape,

   The power supply unit is electrically connected to the ground plate through a power supply point formed on at least a part of the ground plate,

   The first short circuit is electrically connected to the ground plate through a first point forming a distance equal to a center of a circle on the ground plate and a distance from the center of the circle to the feed point,

   The second short circuit is electrically connected to the ground plate through a second point spaced apart from the feed point and the first point and forming the same distance as the center of the circle and the distance from the center of the circle to the feed point. electronic devices to be connected.
9. According to claim 1,

   Each of the power feeding part, the first short-circuit part, and the second short-circuit part is bent along a long side substantially perpendicular to the radiation plate and the ground plate and along the outer edge of the radiation plate, and is in contact with the outer edge of the radiation plate at least in part. An antenna structure comprising a curved plate-like shape including a short side.
10. In electronic devices,

    housing; and

    In the antenna structure disposed inside the housing,

    a plate-shaped radiation plate including a curved outer contour, a curved inner contour substantially similar to the outer contour, and a width formed between the outer contour and the inner outer contour;

    a ground plate spaced apart from the radiation plate and facing;

    a power supply unit electrically connecting the radiation plate and the ground plate;

    a first short circuit spaced apart from the power supply unit and electrically connecting the radiation plate and the ground plate; and

    A second short-circuit spaced apart from the power supply part and the first short-circuit part and electrically connecting the radiation plate and the ground plate to the radiation plate;

    Each of the power feeding part, the first short-circuit part, and the second short-circuit part includes a long side connecting the radiation plate and the ground plate, and a short side at least partially in contact with the outside of the radiation plate along the outside of the radiation plate. An electronic device comprising an antenna structure to
11. According to claim 10,

    The electronic device operates so that it can be used in a communication system based on IEEE 802.15.3a.
12. According to claim 10,

    The electronic device is a high band defined by a direct sequence-ultra wide band (DS-UWB) method and/or band group 3 and band group 4 defined by a multiband-orthogonal frequency division multiplexing (MB-OFDM) method. An electronic device that operates on
13. According to claim 10,

    A printed circuit board including a communication circuit; and

    Further comprising a battery supplying power to the power supply unit,

    The ground plate is

    An electronic device disposed on at least one of the printed circuit board and the battery.
14. According to claim 10,

    a first antenna including a first loop formed by sequentially electrically connecting the feeder connected to the ground plate, the radiation plate, the first short-circuit part, and the ground plate; and

    An electronic device including a second antenna including a second closed circuit formed by sequentially electrically connecting the feeder connected to the ground plate, the radiation plate, the second short-circuit part, and the ground plate.
15. According to claim 10,

    Each of the power feeding part, the first short-circuit part, and the second short-circuit part is curved along a long side substantially perpendicular to the radiation plate and the ground plate and along the outer edge of the radiation plate, and is in contact with the outer edge of the radiation plate at least in part. An electronic device having a curved plate-like shape including a short side.

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