KR20200012009A - Antenna apparatus - Google Patents

Abstract

The present invention provides an antenna apparatus with increased antenna performance. According to an embodiment of the present invention, the antenna apparatus comprises: a ground layer; a patch antenna pattern separated and arranged above the ground layer, wherein the upper surface thereof is polygonal; a feed via to provide a power feeding path to the patch antenna pattern from a lower portion than the patch antenna pattern; and a plurality of meta patterns separated and arranged above the ground layer, separated from the patch antenna pattern, and separated from each other. The plurality of meta patterns may include: a plurality of first meta patterns arranged to enclose the patch antenna pattern, wherein two or more meta patterns cover towards the patch antenna pattern for each edge of the polygon of the patch antenna pattern; and a plurality of second meta patterns arranged more sparsely than the plurality of first meta patterns farther away from the patch antenna pattern than the plurality of first meta patterns.

Description

Antenna apparatus

The present invention relates to an antenna device.

Data traffic of mobile communication is increasing rapidly every year. Active technology development is under way to support such breakthrough data in real time in wireless networks. For example, the content of Internet of Thing (IoT) -based data, Augmented Reality (AR), Virtual Reality (VR), Live VR / AR combined with SNS, Autonomous driving, Sync View, Miniature camera Applications such as real-time video transmission require communication (eg, 5G communication, mmWave communication, etc.) to support sending and receiving large amounts of data.

Therefore, recently, millimeter wave (mmWave) communication including 5G (5G) communication has been actively studied, and research for commercialization / standardization of an antenna device for smoothly implementing it has been actively conducted.

RF signals in high frequency bands (e.g., 24 GHz, 28 GHz, 36 GHz, 39 GHz, 60 GHz, etc.) are easily absorbed and lost in the way they are delivered, so the quality of communication can drop dramatically. Therefore, the antenna for the communication of high frequency band requires a different technical approach from the existing antenna technology, and separate for securing the antenna gain, integration of the antenna and RFIC, and securing effective isotropic radiated power (EIRP). It may require development of special technologies such as power amplifiers.

Japan 6262617

The present invention provides an antenna device.

An antenna device according to an embodiment of the present invention, a ground layer; A patch antenna pattern disposed above the ground layer and spaced apart from each other and having a polygonal top surface; A feed via providing a feed path to the patch antenna pattern below the patch antenna pattern; And a plurality of meta patterns spaced apart from each other above the ground layer, spaced apart from the patch antenna patterns, and spaced apart from each other; The plurality of meta-patterns may include a plurality of first meta-patterns arranged to surround the patch antenna pattern, and arranged to cover two or more toward the patch antenna pattern for each side of the polygon of the patch antenna pattern. ; And a plurality of second meta patterns sparsely arranged from the patch antenna pattern more sparse than the plurality of first meta patterns than the plurality of first meta patterns; It may include.

An antenna device according to an embodiment of the present invention, a ground layer; A patch antenna pattern disposed above the ground layer and spaced apart from each other and having a polygonal top surface; A feed via providing a feed path to the patch antenna pattern below the patch antenna pattern; A plurality of meta-patterns, each spaced above the ground layer, spaced from the patch antenna pattern, spaced apart from each other, and arranged along at least one side of the patch antenna pattern; And a plurality of array vias each electrically connecting some of the plurality of meta patterns; The plurality of meta patterns may include: a plurality of first meta patterns electrically connected to the plurality of array vias and three-dimensionally arranged; And a plurality of second meta-patterns three-dimensionally filled with at least one of an insulating layer and air without a metal component disposed therebetween; It may include.

An antenna device according to an embodiment of the present invention, a ground layer having at least one through hole; A patch antenna pattern spaced apart above the ground layer; A feed via disposed below the patch antenna pattern to provide a feed path to the patch antenna pattern and penetrate at least one through hole of the ground layer; A feed line spaced apart from the ground layer and spaced apart from the feed via; An end-fire antenna pattern electrically connected to the feedline; And a plurality of spacers, each of which is spaced above the ground layer, spaced from the patch antenna pattern, spaced from each other, and arranged to be positioned between the patch antenna pattern and the end-fire antenna pattern when at least a portion thereof is viewed in a vertical direction. Meta pattern; Wherein the plurality of meta-patterns are arranged to provide at least one cavity in a horizontal direction toward the end-fire antenna pattern, wherein the separation distance between the at least one cavity of the plurality of meta-patterns is at least It can be longer than the separation distance between one cavity.

The antenna device according to an embodiment of the present disclosure may further concentrate the RF signal in the z direction and thus have more improved antenna performance.

In addition, the antenna device according to an embodiment of the present invention can improve the performance compared to the size of the components (for example, meta-pattern) for concentrating the RF signal in the z-direction, structure that is advantageous for miniaturization while improving the antenna performance It can have

In addition, the antenna device according to an embodiment of the present invention, while having a more compressed structure can reduce the electromagnetic interference caused by the V pole (Vertical pole) RF signal of the patch antenna pattern to the adjacent antenna device, it is improved compared to the size Can have an antenna performance.

In addition, the antenna device according to an embodiment of the present disclosure may further provide an element (eg, a cavity) dependent on the antenna performance, and thus may have more finely adjusted antenna performance.

In addition, the antenna device according to an embodiment of the present disclosure may provide a balanced structure of impedances of components (eg, meta patterns) for concentrating RF signals in the z-direction, and thus, may include meta patterns between a plurality of antenna devices. Coupling efficiency can be improved and further improved antenna performance.

1 is a perspective view showing an antenna device according to an embodiment of the present invention.
2A is a side view illustrating an antenna device according to an embodiment of the present invention.
2B is a cross-sectional view illustrating an antenna device according to an embodiment of the present invention.
2C is a perspective view illustrating in detail the annular meta-pattern and the combined meta-pattern of the antenna device according to an embodiment of the present invention.
2D is a circuit diagram illustrating an equivalent circuit of an antenna device according to an embodiment of the present invention.
3A is a perspective view illustrating an arrangement of a patch antenna pattern of the antenna device according to an exemplary embodiment.
3B is a plan view illustrating a top surface of an antenna device according to an embodiment of the present invention.
3C to 3F are plan views illustrating each layer of the antenna device according to an exemplary embodiment.
4A is a plan view showing the dimensions of an antenna device according to an embodiment of the present invention.
4B to 4G are plan views illustrating various forms of the combined meta-pattern of the antenna device according to an embodiment of the present invention.
5A is a perspective view illustrating an arrangement of a patch antenna pattern of the antenna device according to an exemplary embodiment.
5B is a plan view illustrating an arrangement of meta patterns of an antenna device according to an exemplary embodiment.
6A to 6B are side views illustrating a lower structure of a connection member included in an antenna device according to an embodiment of the present invention.
7 is a side view illustrating the structure of an antenna device according to an embodiment of the present invention.
8A and 8B are plan views illustrating an arrangement in an electronic device of an antenna device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

1 is a perspective view showing an antenna device according to an embodiment of the present invention.

Referring to FIG. 1, an antenna device according to an embodiment of the present disclosure may include a patch antenna pattern 110a, a feed via 120a, an annular meta pattern 130a, and a combined meta pattern 180a. have.

The feed via 120a may be configured to pass a radio frequency (RF) signal. For example, the feed via 120a may electrically connect between the IC and the patch antenna pattern 110a and may have a structure extending in the z direction.

The patch antenna pattern 110a may be electrically connected to one end of the feed via 120a. The patch antenna pattern 110a may receive an RF signal from the feed via 120a and transmit the RF signal in the z direction, and transmit the RF signal received in the z direction to the feed via 120a.

Some of the RF signals transmitted from the patch antenna pattern 110a may face the ground layer 125a disposed below. The RF signal directed toward the ground layer 125a may be reflected by the ground layer 125a and directed in the z direction. Accordingly, the RF signal transmitted from the patch antenna pattern 110a may be further concentrated in the z direction.

For example, the patch antenna pattern 110a may have a structure of a patch antenna having both sides of a circular or polygonal shape. Both surfaces of the patch antenna pattern 110a may serve as a boundary through which an RF signal passes between a conductor and a non-conductor. The patch antenna pattern 110a may have an intrinsic frequency band (eg, 28 GHz) according to an intrinsic element (eg, shape, size, height, dielectric constant of the insulating layer, etc.).

The plurality of annular meta patterns 130a may be spaced apart from the patch antenna pattern 110a and arranged to correspond to at least a portion of the side boundary of the patch antenna pattern 110a. The plurality of annular meta patterns 130a may be electromagnetically coupled to the patch antenna pattern 110a and guide the path of the RF signal of the patch antenna pattern 110a in the z direction.

For example, the plurality of annular meta patterns 130a may have the same shape and may be repeatedly arranged. That is, the plurality of annular meta patterns 130a may have an electromagnetic bandgap characteristic and have a negative refractive index with respect to the RF signal. Accordingly, the plurality of annular meta patterns 130a may further induce a path of the RF signal of the patch antenna pattern 110a in the z direction.

In addition, the plurality of annular meta patterns 130a may be electromagnetically coupled to the patch antenna pattern 110a, and the elements (eg, height, shape, size, number, Spacing, spacing for the patch antenna pattern, etc.) may affect the frequency characteristics of the patch antenna pattern 110a.

Most of the RF signals passing through the plurality of annular meta patterns 130a may be derived close to the z direction, but some may be far from the z direction. Accordingly, some of the RF signals passing through the plurality of annular meta patterns 130a may be counted in the x direction and / or the y direction in the plurality of the annular meta patterns 130a.

The plurality of combined meta patterns 180a may be arranged to correspond to at least a portion of the side boundaries of the plurality of annular meta patterns 130a and may be sparsely arranged than the plurality of annular meta patterns 130a. Can be.

For example, the plurality of combined meta patterns 180a may have the same shape and may be repeatedly arranged. That is, the plurality of coupled meta patterns 180a may have electromagnetic bandgap characteristics and may have negative refractive indices with respect to the RF signal. Accordingly, the plurality of combined meta patterns 180a may further induce a path of the RF signal of the patch antenna pattern 110a in the z direction.

In addition, the plurality of combined meta patterns 180a may be configured to be easily coupled to the plurality of combined meta patterns of the adjacent antenna device. For example, the plurality of combined meta patterns 180a may provide a space in which a portion of the plurality of combined meta patterns of an adjacent antenna device is inserted.

Accordingly, the plurality of combined meta patterns 180a may operate similarly to the plurality of annular meta patterns 130a by combining the plurality of combined meta patterns of the adjacent antenna devices. That is, since the plurality of combined meta patterns 180a may be efficiently connected to the plurality of annular meta patterns 130a, the antenna device according to an embodiment of the present invention may be configured as if the plurality of annular meta patterns 130a are present. ) Can be operated as if the width in the horizontal direction (x direction / y direction) is widened. The increase in the horizontal width of the plurality of annular meta patterns 130a means that the RF signal reflected from the ground layer 125a covers a wider path. Accordingly, the antenna device according to an embodiment of the present invention may further induce a path of the RF signal in the z direction.

Here, the widening of the horizontal width of the plurality of meta-patterns (including the ring type and the combined type) means using a larger space. Therefore, the RF signal cover range of the plurality of meta patterns and the size of space used by the plurality of meta patterns are trade-offs.

An antenna device according to an embodiment of the present invention may include a plurality of meta patterns having a large increase in RF signal cover range compared to an increase in size. For example, an antenna device according to an embodiment of the present invention may have an RF signal cover range of which the horizontal width is increased by about 2 times using a plurality of meta patterns whose horizontal width is increased by about 1.5 times.

Here, the increase in the horizontal width of the plurality of meta patterns by about 1.5 times is attributable to the fact that the plurality of combined meta patterns 180a and the plurality of combined meta patterns of the adjacent antenna devices share an arrangement space with each other. That is, since the adjacent antenna device may operate as if the horizontal widths of the plurality of annular meta patterns are widened due to the coupling of the plurality of combined meta patterns 180a, the two antenna devices are arranged in a plurality of combined meta patterns. You can share space.

Therefore, an antenna device according to an embodiment of the present invention may have an improved gain compared to a size in view of a single antenna device.

In addition, a portion of the space between the plurality of combined meta patterns 180a may be filled by a portion of the plurality of combined meta patterns of the adjacent antenna device. Accordingly, the remaining part of the space between the plurality of combined meta patterns 180a may form a cavity. The cavity may have an upper surface / lower surface of an area smaller than that of each of the plurality of coupling meta patterns 180a.

The cavity can reduce the electromagnetic interference that the antenna device gives to the adjacent antenna device. That is, the cavity may act as a barrier to prevent the plurality of meta-patterns from inducing the RF signal in the z direction while inducing it in the x direction and / or the y direction.

For example, when the antenna device transmits and receives a polar pole RF signal and a vertical pole RF signal, respectively, the H pole RF signal of the antenna device may cause electromagnetic interference to an adjacent antenna device. . The cavity may prevent the RF signal of the H pole from crossing a plurality of meta patterns to an adjacent antenna device.

Therefore, the antenna device according to an embodiment of the present invention may have an improved gain compared to the size in view of the arrangement of the plurality of antenna devices.

On the other hand, the antenna device according to an embodiment of the present invention may have a characteristic dependent on the size of the cavity. Thus, the cavity can act as an adjusting element of the antenna characteristic.

On the other hand, referring to Figure 1, the antenna device according to an embodiment of the present invention is disposed on the upper side of the patch antenna pattern (110a) when viewed in the vertical direction (z direction) at least a portion of the plurality of annular meta-pattern 130a It may further include a coupling patch pattern 115a disposed to be surrounded by. Accordingly, the antenna device according to an embodiment of the present invention may have a wider bandwidth.

According to the arrangement of the coupling patch pattern 115a, an optimal position for connecting the feed via 120a in the patch antenna pattern 110a may be closer to the boundary of the patch antenna pattern 110a. When the optimum position is closest to the edge of the first direction (eg, 0 degree direction) of the patch antenna pattern 110a, the surface current flowing through the patch antenna pattern 110a according to the RF signal transmission and reception of the patch antenna pattern 110a is The patch antenna pattern 110a may flow in a third direction (eg, 180 ° direction). In this case, the surface current may be distributed in the second direction (eg, 90 ° direction) and the fourth direction (eg, 270 ° direction), and the plurality of annular meta patterns 130a and / or the combined meta patterns 180a may be distributed. ) May guide the lateral counting RF signal in the top direction as the surface current is distributed in the second and fourth directions. Accordingly, since the radiation pattern of the patch antenna pattern 110a may be more concentrated in the upward direction, the antenna performance of the patch antenna pattern 110a may be improved. Meanwhile, depending on the design, the coupling patch pattern 115a may be omitted.

Meanwhile, referring to FIG. 1, an antenna device according to an embodiment of the present disclosure may include at least one of an end-fire antenna pattern 210a, a director pattern 215a, a feed line 220a, and a coupling ground pattern 235a. Some may further include.

The end-fire antenna pattern 210a may form a radiation pattern in a second direction (eg, y direction) to transmit or receive an RF signal in a second direction (eg, y direction). Therefore, the antenna device according to an embodiment of the present invention can extend the RF signal transmission / reception direction omni-directional.

For example, the end-fire antenna pattern 210a may have a dipole form or a folded dipole form. Here, one end of each pole of the end-fire antenna pattern 210a may be electrically connected to the feed line 220a. The frequency band of the end-fire antenna pattern 210a may be designed to be substantially the same as the frequency band of the patch antenna pattern 110a, but is not limited thereto.

In addition, the end-fire antenna pattern 210a may have a structure in which a plurality of horizontal patterns and a plurality of coupling vias 212a are coupled to each other. Accordingly, the end-fire antenna pattern 210a may have an electromagnetic surface facing the second direction (eg, the y direction) and flowing surface current, and thus may have an improved gain.

The director pattern 215a may be electromagnetically coupled to the end-fire antenna pattern 210a to improve the gain or bandwidth of the end-fire antenna pattern 210a. For example, the director pattern 215a may use fewer layers (eg, one layer) than the number of layers of the end-fire antenna pattern 210a. Accordingly, the end-fire antenna pattern 210a may have a wider bandwidth.

The feed line 220a may transmit the RF signal received from the end-fire antenna pattern 210a to the IC, and may transfer the RF signal received from the IC to the end-fire antenna pattern 210a. For example, the feed line 220a may be electrically connected to the end-fire antenna pattern 210a through the second feed via 219a.

The combined meta pattern 180a may improve electromagnetic isolation between the patch antenna pattern 110a and the end-fire antenna pattern 210a. Therefore, the antenna device according to an embodiment of the present invention can be further miniaturized while ensuring antenna performance.

The coupling ground pattern 235a may be disposed above or below the feed line 220a. The coupling ground pattern 235a may be electromagnetically coupled to the end-fire antenna pattern 210a. Thus, the end-fire antenna pattern 210a may have a wider bandwidth.

FIG. 2A is a side view illustrating the antenna device shown in FIG. 1.

Referring to FIG. 2A, the patch antenna pattern and the coupling patch pattern may be disposed on the same layer as the layer on which the plurality of annular meta patterns 130a and the combined meta pattern 180a are disposed. Accordingly, the plurality of annular meta patterns 130a and the combined meta pattern 180a can efficiently induce the RF signal counted by the patch antenna pattern in the upward direction.

The annular meta pattern 130a and the combined meta pattern 180a may each have a plurality of layers (eg, six). As the number of layers of the cyclic meta pattern 130a and the combined meta pattern 180a increases, the RF signal derivation performance of the cyclic meta pattern 130a and the RF signal reflection performance of the combined meta pattern 180a may be improved. .

The connection member 200a may include the above-described ground layer 125a and may further include a wiring ground layer 202a, a second ground layer 203a, and an IC ground layer 204a. The feed line 220a may be disposed at a same level with respect to the wiring ground layer 202a.

FIG. 2B is a cross-sectional view of the antenna device shown in FIG. 2A.

Referring to FIG. 2B, the plurality of annular meta patterns 130a may be arranged in one line. An interval between the plurality of annular meta patterns 130a may be shorter than an interval between the plurality of annular meta patterns 130a and the combined meta pattern 180a. Accordingly, the plurality of annular meta patterns 130a may induce the RF signal in the z direction more efficiently.

Meanwhile, referring to FIG. 2B, the connection member 200a may include a plurality of shielding vias 245a electrically connected between the plurality of ground layers and disposed adjacent to edges of the plurality of ground layers.

Some of the plurality of shielding vias 245a may be arranged under the plurality of annular meta patterns 130a, and other portions of the plurality of shielding vias 245a may be arranged to surround the feed vias 120a. . Accordingly, electromagnetic noise affecting the feed via 120a may be reduced, and transmission loss of the RF signal may be reduced.

2C is a perspective view illustrating in detail the annular meta-pattern and the combined meta-pattern of the antenna device according to an embodiment of the present invention.

Referring to FIG. 2C, the plurality of annular meta patterns 130a may include a plurality of first annular meta patterns 137a, a plurality of second annular meta patterns 132a, and a plurality of third annular meta patterns 133a. ), A plurality of fourth annular meta patterns 134a, a plurality of fifth annular meta patterns 135a, and a plurality of sixth annular meta patterns 136a. The plurality of first, second, third, fourth, fifth, and sixth annular meta patterns 137a, 132a, 133a, 134a, 135a, and 136a may be electrically connected by the plurality of array vias 131a. have. Accordingly, the plurality of annular meta patterns 130a may further have characteristics close to the electromagnetic bandgap characteristics.

According to the design, the plurality of arrayed vias 131a may connect only the plurality of annular meta patterns 130a among the plurality of annular meta patterns 130a and the plurality of combined meta patterns 180a with each other in the vertical direction. .

In addition, the plurality of combined meta patterns 180a may include a plurality of first combined meta patterns 187a, a plurality of second combined meta patterns 182a, a plurality of third combined meta patterns 183a, and a plurality of combined meta patterns 180a. The fourth combined meta pattern 184a, the plurality of fifth combined meta patterns 185a, and the plurality of sixth combined meta patterns 186a may be arranged in parallel.

For example, the plurality of first annular meta patterns 137a may be disposed at the same position with respect to the patch antenna pattern 110a and the plurality of first combined meta patterns 187a of the combined meta pattern 180a. The plurality of second annular meta patterns 132a may be disposed at the same position with respect to the coupling patch pattern 115a and the plurality of second combined meta patterns 182a of the plurality of combined meta patterns 180a. . Accordingly, the plurality of annular meta patterns 130a and the plurality of combined meta patterns 180a may induce the RF signal passing through the patch antenna pattern 110a in the z direction more efficiently.

Referring to FIG. 2C, the plurality of combined meta patterns 180a may be arranged such that a part and another part overlap each other in the vertical direction but are electrically separated from each other.

That is, the plurality of combined meta patterns 180a may include a plurality of first, second, third, fourth, fifth, and sixth combined meta patterns 187a, 182a, 183a, 184a, 185a, and 186a. It may be configured not to include a plurality of vias to connect.

The plurality of vias may act as inductances from an equivalent circuit point of view. Since the plurality of combined meta patterns 180a are coupled to each of the plurality of combined meta patterns and the plurality of annular meta patterns 130a of the adjacent antenna device, the plurality of combined meta patterns 180a may have a relatively large capacitance. Accordingly, the plurality of coupled meta patterns 180a may not include a plurality of vias so as to have relatively small inductance for impedance balance of the entire plurality of meta patterns. However, since the inductance and the capacitance may vary depending on the design, the plurality of coupled meta patterns 180a may be configured to include the plurality of vias according to the design of the antenna device.

Meanwhile, the plurality of annular meta patterns 130a and the plurality of combined meta patterns 180a may be electrically separated from the ground layer 125a, respectively. Accordingly, the plurality of meta-patterns may have a more adaptive characteristic with respect to the RF signal having a frequency adjacent to the frequency band of the patch antenna pattern 110a, thereby further widening the bandwidth. However, the antenna device according to an embodiment of the present invention is configured to include a grounding via (not shown) that electrically connects the plurality of meta patterns and the ground layer 125a according to a design, and may be designed in view of operation stability. Can be.

2D is a circuit diagram illustrating an equivalent circuit of an antenna device according to an embodiment of the present invention.

Referring to FIG. 2D, the patch antenna pattern 110b of the antenna device according to an embodiment of the present invention may transmit an RF signal or receive an RF signal to a source SRC2 such as an IC, and have a resistance value R2. And may have inductances L3 and L4.

The plurality of annular meta patterns 130b may include capacitances C5 and C12 for the patch antenna pattern 110b, capacitances C6 and 10 between the plurality of annular meta patterns, and inductances L5 and L6 of the array vias. ) And capacitances C7 and C11 between the plurality of annular meta patterns and the ground layer.

Here, the capacitances and inductances of the plurality of coupling meta patterns described above may be added to the capacitances and inductances of the plurality of annular meta patterns 130b.

Frequency band and bandwidth of the antenna device according to an embodiment of the present invention may be determined by the above-described resistance value, capacitance and inductance.

3A is a perspective view illustrating an arrangement of a patch antenna pattern of an antenna device according to an embodiment of the present invention, and FIG. 3B is a plan view illustrating a top surface of the antenna device according to an embodiment of the present invention.

3A and 3B, an antenna device according to an embodiment of the present invention includes a plurality of patch antenna patterns 110b, a plurality of coupling patch patterns 115b, a plurality of feed vias, and ground layers 125b. , A plurality of annular meta patterns 130b, a plurality of combined meta patterns 180b, a connecting member 200b, a plurality of end-fire antenna patterns 210b, a plurality of director patterns 215b, a plurality of feed lines At least some of the 220b and the plurality of coupling ground patterns 235b may be included.

The plurality of patch antenna patterns 110b and the plurality of coupling patch patterns 115b may be arranged in a first direction (for example, x direction).

That is, the plurality of patch antenna patterns 110b may be arranged in a 1 X n structure. N is a natural number of 2 or more. An antenna device having a plurality of patch antenna patterns 110b arranged in a 1 × n structure may be efficiently disposed at an edge of an electronic device.

The plurality of annular meta patterns 130b may be arranged to surround each of the plurality of patch antenna patterns 110b.

The plurality of combined meta patterns 180b may be arranged to surround the plurality of annular meta patterns 130b.

The plurality of end-fire antenna patterns 210b may be spaced apart from each of the plurality of patch antenna patterns 110b in a second direction (for example, y direction) when viewed in the vertical direction (z direction).

Here, a part of the plurality of annular meta patterns 130b may be arranged between the plurality of end-fire antenna patterns 210b and the plurality of patch antenna patterns 110b in the vertical direction (z direction).

Accordingly, electromagnetic isolation between the plurality of patch antenna patterns 110b and the plurality of end-fire antenna patterns 210b may be improved.

In addition, a part of the plurality of combined meta patterns 180b may be arranged between the plurality of end-fire antenna patterns 210b and the plurality of patch antenna patterns 110b when viewed in the vertical direction (z direction).

Since the plurality of combined meta patterns 180b are sparsely arranged, the plurality of combined meta patterns 180b may provide a wider electromagnetic interface to the plurality of end-fire antenna patterns 210b.

Accordingly, the RF signal counted from the plurality of end-fire antenna patterns 210b to the plurality of patch antenna patterns 110b may be reflected more efficiently at the electromagnetic boundary of the plurality of combined meta patterns 180b. The light may be concentrated and reflected in a second direction (eg, y direction). Thus, antenna performance of the plurality of end-fire antenna patterns 210b may be further improved.

3C to 3F are plan views illustrating each layer of the antenna device according to an exemplary embodiment.

Referring to FIG. 3C, the ground layer 201a may have a through hole through which the feed via 120a passes, and may be connected to the other end of the grounding via 185a. The ground layer 201a may electromagnetically shield between the patch antenna pattern 110a and the feed line.

Referring to FIG. 3D, the wiring ground layer 202a may surround at least a portion of the feedline 220a and the patch antenna feedline 221a, respectively. The feed line 220a may be electrically connected to the second wiring via 232a, and the patch antenna feed line 221a may be electrically connected to the first wiring via 231a. The wiring ground layer 202a may electromagnetically shield between the feedline 220a and the patch antenna feedline 221a. One end of the feed line 220a may be connected to the second feed via 211a.

Referring to FIG. 3E, the second ground layer 203a may have a plurality of through holes through which the first wiring via 231a and the second wiring via 232a pass, respectively, and form the coupling ground pattern 235a. Can have The second ground layer 203a may electromagnetically shield between the feedline and the IC.

Referring to FIG. 3F, the IC ground layer 204a may have a plurality of through holes through which the first wiring via 231a and the second wiring via 232a respectively pass. The IC 310a may be disposed under the IC ground layer 204a and may be electrically connected to the first wiring via 231a and the second wiring via 232a. The end-fire antenna pattern 210a and the director pattern 215a may be disposed at substantially the same height as the IC ground layer 204a.

The IC ground layer 204a may provide the IC 310a and / or passive components with ground used in the circuitry and / or passive components of the IC 310a. Depending on the design, the IC ground layer 204a may provide a path for the transmission of power and signals used in the IC 310a and / or passive components. Thus, IC ground layer 204a may be electrically connected to the IC and / or passive components.

Meanwhile, the wiring ground layer 202a, the second ground layer 203a, and the IC ground layer 204a may have a recessed shape to provide a cavity. Accordingly, the end-fire antenna pattern 210a may be further disposed closer to the IC ground layer 204a.

Meanwhile, the vertical relationship and shape of the wiring ground layer 202a, the second ground layer 203a, and the IC ground layer 204a may vary depending on the design.

4A is a plan view showing the dimensions of an antenna device according to an embodiment of the present invention.

Referring to FIG. 4A, the plurality of annular meta patterns 130b may be arranged in the first region S1 and the third region S3, and the plurality of combined meta patterns 180b may be arranged in the second region S2. ) And the fourth region S4. The second region S2 may be disposed between the first regions S1. The fourth region S4 may be disposed farther from the patch antenna pattern 110b and / or the coupling patch pattern 115b than the third region S3.

The plurality of annular meta patterns 130b may be arranged to have a space between the first gaps G11 and G12. The first interval G11 in the first direction and the first interval G12 in the second direction may be the same, but are not limited thereto.

Each of the annular meta patterns 130b may have a first length W11 and a first length W12 in the first direction. The first length W11 in the first direction and the first length W12 in the second direction may be the same, but they are not limited thereto. For example, the first length W11 in the first direction and the first length W12 in the second direction are respectively 10 times or more and 12 times the first distance G11 and the first direction G12 in the second direction. It may be:

The cavity 190b may have second intervals G21 and G22 greater than the first intervals G11 and G12. Thus, the cavity 190b may be larger than the space between the plurality of annular meta patterns 130b. Accordingly, the cavity 190b may further improve electromagnetic isolation between the plurality of patch antenna patterns 110b by assisting the electromagnetic bandgap characteristics of the plurality of coupling meta patterns 180b.

The cavity 190b may have a first direction second interval G21 and a second direction second interval G22, and the first direction second interval G21 may be smaller than the second direction second interval G22. Can be. That is, the upper and lower surfaces of the cavity 190b may have a polygonal shape in which the length in the first direction and the length in the second direction perpendicular to the first direction are different from each other.

Accordingly, the antenna device according to an embodiment of the present invention can be miniaturized by reducing the size of the first region S1 while securing electromagnetic isolation between the plurality of patch antenna patterns 110b. For example, the first direction second interval G21 may be more than 1/2 times less than 3/4 times the second direction second interval G22, but is not limited thereto.

Each of the plurality of combined meta patterns 180b may have a third length W31 and a first length W12 in the first direction.

One side of the plurality of combined meta patterns 180b may be spaced apart from the plurality of annular meta patterns 130b at a first interval G11 in the first direction, and the other side of the plurality of combined meta patterns 180b may have a plurality of combined meta patterns 180b. It may be spaced apart from the annular meta-pattern 130b at a first direction second interval G21 longer than the first direction first interval G11. Accordingly, since the cavity 190b may be regularly arranged, the cavity 190b may more efficiently assist the electromagnetic bandgap characteristics of the plurality of coupled meta patterns 180b.

According to the design, the plurality of combined meta-patterns 180b may be arranged such that each portion has a space therebetween having the same distance as the first direction G12 in the second direction. Accordingly, the plurality of coupling meta patterns 180b may improve the electromagnetic coupling efficiency without sacrificing the electromagnetic band gap characteristics while forming the cavity 190b.

According to the design, the first direction third length W31 of the plurality of combined meta patterns 180b is greater than the first direction first length W11 or larger than the second direction first length W12. It may have a polygonal shape. Accordingly, the plurality of coupling meta patterns 180b may improve the electromagnetic coupling efficiency while forming the cavity 190b. For example, the third length W31 of the first direction may be greater than 1 times and 1.2 times or less of the first length W11 of the first direction, but is not limited thereto.

The first direction second gap G21 of the cavity 190b may be smaller than the first length third length W31 of the plurality of coupling meta patterns 180b. Therefore, the cavity 190b may have a top and bottom area smaller than that of each of the plurality of mating meta patterns 180b. Accordingly, the antenna device according to an embodiment of the present invention can be miniaturized by reducing the size of the first region S1 while securing electromagnetic isolation between the plurality of patch antenna patterns 110b.

On the other hand, the combined meta pattern 182b arranged at the edge of the second direction (for example, the y direction) among the plurality of combined meta patterns 180b is smaller than the combined meta pattern 181b arranged at the center of the second direction. Can be larger.

That is, the plurality of combined meta patterns 180b surround the patch antenna pattern 110b to form a polygon, and the combined meta pattern 182b corresponding to the corner of the polygon among the plurality of combined meta patterns is the plurality of combined meta patterns 180b. The meta pattern may be larger than the combined meta pattern 181b corresponding to the sides of the polygon.

Accordingly, the plurality of combined meta-patterns 180b may improve the arrangement balance of edges of the second direction (for example, y-direction) while forming the cavity 190b, thereby improving the stability of electromagnetic bandgap characteristics and causing electromagnetic The binding efficiency can be improved.

For example, the combined meta-pattern 182b arranged at the edge of the plurality of combined meta-patterns 180b has a first length third length W13 longer than the first length W11 in the first direction. The second direction may have a third length W14 longer than the first length W12.

Similarly, the plurality of annular meta patterns 130b surround the patch antenna pattern 110b to form a polygon, and the annular meta pattern 132b corresponding to the corner of the polygon among the plurality of annular meta patterns is the plurality of annular shapes. The meta pattern may be larger than the annular meta pattern 131b corresponding to the sides of the polygon. Similarly, in the cavity 190b, the cavity 192b corresponding to the corner of the polygon is a cavity 191b corresponding to the sides of the polygon. , 193b).

Accordingly, the plurality of combined meta-patterns 180b may improve the arrangement balance of edges of the second direction (for example, y-direction) while forming the cavity 190b, thereby improving the stability of electromagnetic bandgap characteristics and causing electromagnetic The binding efficiency can be improved.

Meanwhile, the combined meta pattern disposed between the patch antenna pattern 110b and the end-fire antenna pattern 210b among the plurality of combined meta patterns 180b may have a fourth length W42 and a second direction in the first direction. It may have a fourth length W41. The first direction fourth length W42 may be equal to the first direction first length W11, and the second direction fourth length W41 may be smaller than the second direction first length W12, but It is not limited.

Meanwhile, the plurality of annular meta patterns 130b may be spaced apart from the plurality of patch antenna patterns 110b by the fifth direction G51 and the fifth direction G52 of the second direction.

Here, the first direction second interval G21 of the cavity 190b may be smaller than the first direction fifth interval G51 and may be smaller than the second direction fifth interval G52. Accordingly, the plurality of coupling meta patterns 180b may improve the electromagnetic barrier performance of the cavity 190b and improve the electromagnetic coupling efficiency.

On the other hand, the plurality of combined meta-pattern 180b may be a portion of the combined meta-pattern closer to a portion (eg, one side edge of the first direction) of the plurality of patch antenna patterns 110b and another portion of the plurality of patch antenna patterns ( For example, portions of the combined meta pattern closer to the other side of the first direction may be alternately inserted.

Accordingly, the plurality of coupling meta patterns 180b may improve the electromagnetic coupling efficiency without sacrificing the electromagnetic band gap characteristics while forming the cavity 190b.

Depending on the design, the plurality of combined meta-patterns 180b may not have a form alternately inserted with each other as illustrated in FIGS. 4B to 4G.

4B to 4G are plan views illustrating various forms of the combined meta-pattern of the antenna device according to an embodiment of the present invention.

4B to 4F, the plurality of combined meta patterns 180c, 180d, 180e, 180f, and 180g may be arranged in zigzag rows of N pieces (N is a natural number). Accordingly, the plurality of coupled meta-patterns 180c, 180d, 180e, 180f, and 180g may harmonize electromagnetic bandgap characteristics and electromagnetic barrier performance of the cavities 190c, 190d, 190e, 190f, and 190g.

4B to 4F, the plurality of annular meta patterns 130c, 130d, 130e, 130f, and 130g may be arranged in N columns. That is, the number of columns of the plurality of annular meta patterns 130c, 130d, 130e, 130f, and 130g may be the same as the number of columns of the plurality of combined meta patterns 180c, 180d, 180e, 180f, and 180g. Accordingly, the antenna device according to an embodiment of the present invention has a relatively high regularity of the plurality of annular meta patterns 130c, 130d, 130e, 130f, and 130g and a plurality of combined metapatterns 180c, 180d, 180e, 180f, 180g), relatively high electromagnetic barrier performance can be harmoniously used.

4B to 4F, the cavities 190c, 190d, 190e, 190f, and 190g may include side boundaries of the plurality of annular meta patterns 130c, 130d, 130e, 130f, and 130g, and a plurality of combined metapatterns ( 180c, 180d, 180e, 180f, 180g) may be formed by bending the zigzag rows. Accordingly, the cavities 190c, 190d, 190e, 190f, and 190g may be arranged in a zigzag row, and the electromagnetic bands of the plurality of combined meta patterns 180c, 180d, 180e, 180f, and 180g may improve electromagnetic barrier performance. Gap characteristics can be assisted efficiently.

4B-4G, the plurality of cavities 190c, 190d, 190e, 190f, 190g, 190h are mosaics for the plurality of combined meta patterns 190c, 190d, 190e, 190f, 190g, 190h. ) May be arranged in a structure. Accordingly, the plurality of cavities 190c, 190d, 190e, 190f, 190g, and 190h and the plurality of combined meta patterns 180c, 190d, 190e, 190f, 190g, and 190h, respectively, have relatively high ordering regularities. Since they can be complementarily combined with each other, it is possible to harmonize electromagnetic band gap characteristics and electromagnetic barrier performance.

Referring to FIG. 4B, the cavity 190c may have a first direction second interval G21 greater than the first direction second interval of the cavity illustrated in FIG. 4A. For example, the first direction second gap G21 may be the same as the first length third length W31 of the plurality of coupling meta patterns 180c.

Referring to FIG. 4C, the cavity 190d may have a first direction second gap G21 greater than the first direction second gap of the cavity illustrated in FIG. 4B. For example, the first direction second gap G21 may be further extended by an extension gap G23 at a first length W31 of the plurality of combined meta patterns 180b. For example, the first direction third length W31 of the plurality of combined meta patterns 180d may be longer than the first length third length of the plurality of combined meta patterns 180d in FIG. 4A.

Referring to FIG. 4D, each of the plurality of combined meta patterns 180e and the plurality of cavities 190e may have more columns than the plurality of combined meta patterns and the plurality of cavities shown in FIG. 4A.

Referring to FIG. 4E, each of the plurality of cavities 190f may have more rows than the plurality of cavities shown in FIG. 4A.

Referring to FIG. 4F, the cavity 190g may have a second direction second interval G22 smaller than the second direction second interval of the cavity illustrated in FIG. 4A.

Referring to FIG. 4G, the patch antenna pattern 110h may be circular, and the plurality of annular meta patterns 130h and the plurality of combined meta patterns 180h may each have a trapezoidal shape, and the cavity 190h. May have a triangular form. That is, the shape of each component of the antenna device according to an embodiment of the present invention is not limited to the rectangle.

5A is a perspective view illustrating an arrangement of a patch antenna pattern of the antenna device according to an exemplary embodiment.

Referring to FIG. 5A, an antenna device according to an exemplary embodiment may include a plurality of patch antenna patterns 110i, ground layers 125i, a plurality of annular meta patterns 130i, and a plurality of combined meta patterns ( 180i), a plurality of cavities 190i, a plurality of end-fire antenna patterns 210i, and a plurality of feed lines 220i.

The plurality of patch antenna patterns 110i may be arranged in an m X n structure. Here, m and n are two or more natural numbers. Accordingly, the antenna device according to an embodiment of the present invention may be disposed close to the corner of the electronic device.

The plurality of annular meta patterns 130i may have a ring shape corresponding to the shape of the plurality of patch antenna patterns 110i, and the plurality of combined meta patterns 180i may have a lattice structure.

5B is a plan view illustrating an arrangement of meta patterns of an antenna device according to an exemplary embodiment.

Referring to FIG. 5B, an antenna device according to an embodiment of the present disclosure may include a plurality of patch antenna patterns 110i, ground layers 125j, a plurality of annular meta patterns 130j, and a plurality of combined meta patterns ( 180j) and at least some of the plurality of cavities 190j.

The plurality of annular meta patterns 130j and the plurality of combined meta patterns 180j may not be completely surrounded by the plurality of patch antenna patterns 110i, respectively, and may be disposed only between the plurality of patch antenna patterns 110i. .

That is, if the plurality of combined meta patterns 180j are arranged between the plurality of annular meta patterns 130j, the shape of the plurality of annular meta patterns 130j is not particularly limited to rings, and the string It may be in the form of.

6A to 6B are side views illustrating a lower structure of a connection member included in an antenna device according to an embodiment of the present invention.

Referring to FIG. 6A, an antenna device according to an embodiment of the present disclosure includes a connection member 200, an IC 310, an adhesive member 320, an electrical connection structure 330, an encapsulant 340, and a passive component. At least some of the 350 and the sub-substrate 410 may be included.

The connection member 200 may have a structure similar to the connection member described above with reference to FIGS. 1 to 5B.

The IC 310 is the same as the above-described IC, and may be disposed below the connection member 200. The IC 310 may be electrically connected to a wire of the connection member 200 to transmit or receive an RF signal, and may be electrically connected to a ground layer of the connection member 200 to receive ground. For example, the IC 310 may generate a converted signal by performing at least some of frequency conversion, amplification, filtering, phase control, and power generation.

The adhesive member 320 may bond the IC 310 and the connection member 200 to each other.

The electrical connection structure 330 may electrically connect the IC 310 and the connection member 200. For example, the electrical connection structure 330 may have a structure such as solder balls, pins, lands, and pads. The electrical connection structure 330 may have a lower melting point than the wiring of the connection member 200 and the ground layer to electrically connect the IC 310 and the connection member 200 through a predetermined process using the low melting point.

The encapsulant 340 may seal at least a portion of the IC 310, and may improve heat dissipation performance and impact protection performance of the IC 310. For example, the encapsulant 340 may be implemented with a photo imageable encapsulant (PIE), an Ajinomoto build-up film (ABF), an epoxy molding compound (EMC), or the like.

The passive component 350 may be disposed on the bottom surface of the connection member 200, and may be electrically connected to the wiring and / or the ground layer of the connection member 200 through the electrical connection structure 330. For example, the passive component 350 may include at least some of a capacitor (eg, a multi-layer ceramic capacitor (MLCC)), an inductor, and a chip resistor.

The sub-substrate 410 may be disposed under the connection member 200, and may receive an intermediate frequency (IF) signal or a base band signal from the outside and transmit the received signal to the IC 310 or from the IC 310. It may be electrically connected to the connection member 200 to receive the IF signal or the baseband signal to transmit to the outside. Here, the frequency (eg, 24 GHz, 28 GHz, 36 GHz, 39 GHz, 60 GHz) of the RF signal is greater than the frequency of the IF signal (eg, 2 GHz, 5 GHz, 10 GHz, etc.).

For example, the sub-substrate 410 may transfer the IF signal or the baseband signal to or from the IC 310 through a wire that may be included in the IC ground layer of the connection member 200. Since the first ground layer of the connection member 200 is disposed between the IC ground layer and the wiring, the IF signal or the baseband signal and the RF signal can be electrically isolated in the antenna device.

Referring to FIG. 6B, the antenna device according to an embodiment of the present disclosure may include at least some of the shielding member 360, the connector 420, and the chip antenna 430.

The shielding member 360 may be disposed under the connection member 200 to confine the IC 310 together with the connection member 200. For example, the shield member 360 may be arranged to cover (eg, conformal shield) the IC 310 and the passive component 350 together or to cover each other (eg, the compartment shield). For example, the shielding member 360 may have a shape of a hexahedron having one surface open, and may have a hexahedral receiving space through coupling with the connection member 200. The shielding member 360 may be made of a material having high conductivity, such as copper, to have a short skin depth, and may be electrically connected to the ground layer of the connection member 200. Accordingly, the shielding member 360 may reduce electromagnetic noise that may be received by the IC 310 and the passive component 350.

The connector 420 may have a connection structure of a cable (eg, coaxial cable, flexible PCB), may be electrically connected to the IC ground layer of the connection member 200, and may play a role similar to that of the above-described sub substrate. have. That is, the connector 420 may receive an IF signal, a baseband signal and / or a power from a cable, or provide an IF signal and / or a baseband signal to a cable.

The chip antenna 430 may transmit or receive an RF signal in support of an antenna device according to an exemplary embodiment. For example, the chip antenna 430 may include a dielectric block having a larger dielectric constant than the insulating layer, and a plurality of electrodes disposed on both surfaces of the dielectric block. One of the plurality of electrodes may be electrically connected to the wiring of the connection member 200, and the other may be electrically connected to the ground layer of the connection member 200.

7 is a side view illustrating the structure of an antenna device according to an embodiment of the present invention.

Referring to FIG. 7, in the antenna device according to the exemplary embodiment, the end-fire antenna 100f, the patch antenna pattern 1110f, the IC 310f, and the passive component 350f are integrated into the connection member 500f. It can have a structure.

The end-fire antenna 100f and the patch antenna pattern 1110f may be designed in the same manner as the antenna device and the patch antenna pattern described above, respectively, and receive or transmit an RF signal from the IC 310f or receive the received RF signal. The signal can be passed to the IC 310f.

The connection member 500f may have a structure in which at least one conductive layer 510f and at least one insulating layer 520f are stacked (eg, a structure of a printed circuit board). The conductive layer 510f may have the above-described ground layer and a feed line.

In addition, the antenna device according to an exemplary embodiment may further include a flexible connection member 550f. The flexible connecting member 550f may include a first flexible region 570f overlapping the connecting member 500f and a second flexible region 580f not overlapping the connecting member 500f when viewed in the vertical direction.

The second flexible region 580f may be flexibly curved in the vertical direction. Accordingly, the second flexible region 580f may be flexibly connected to the connector of the set board and / or the adjacent antenna device.

The flexible connection member 550f may include a signal line 560f. The intermediate frequency (IF) signal and / or the baseband signal may be transmitted to the IC 310f through the signal line 560f or to the connector of the set board and / or the adjacent antenna device.

8A and 8B are plan views illustrating an arrangement in an electronic device of an antenna device according to an embodiment of the present disclosure.

Referring to FIG. 8A, an antenna device including an end-fire antenna 100g, a patch antenna pattern 1110g, and an insulating layer 1140g may be applied to an electronic device 700g on a set substrate 600g of the electronic device 700g. May be disposed adjacent to the lateral boundary.

The electronic device 700g includes a smart phone, a personal digital assistant, a digital video camera, a digital still camera, a network system, a computer. ), Monitor, tablet, laptop, netbook, television, video game, smart watch, automotive, etc. It is not limited.

The communication module 610g and the baseband circuit 620g may be further disposed on the set substrate 600g. The antenna device may be electrically connected to the communication module 610g and / or the baseband circuit 620g through the coaxial cable 630g.

The communication module 610g may include a memory chip such as volatile memory (eg, DRAM), non-volatile memory (eg, ROM), and flash memory to perform digital signal processing; Application processor chips such as central processors (eg, CPUs), graphics processors (eg, GPUs), digital signal processors, cryptographic processors, microprocessors, microcontrollers; It may include at least a portion of a logic chip such as an analog-digital converter, an application-specific IC (ASIC).

The baseband circuit 620g may generate a base signal by performing analog-to-digital conversion, amplification, filtering, and frequency conversion on the analog signal. The base signal input and output from the baseband circuit 620g may be transmitted to the antenna device through a cable.

For example, the base signal may be transmitted to the IC through the electrical connection structure, the core via, and the wiring. The IC may convert the base signal into an RF signal of millimeter wave (mmWave) band.

Referring to FIG. 8B, a plurality of antenna devices each including an end-fire antenna 100h, a patch antenna pattern 1110h, and an insulating layer 1140h may be provided on the set substrate 600h of the electronic device 700h. 700h may be disposed adjacent to one side boundary and the other side boundary, and a communication module 610h and a baseband circuit 620h may be further disposed on the set substrate 600h. The plurality of antenna devices may be electrically connected to the communication module 610h and / or the baseband circuit 620h through the coaxial cable 630h.

Meanwhile, the patch antenna pattern, the coupling patch pattern, the annular meta pattern, the combined meta pattern, the feed via, the array via, the grounding via, the shield via, the wiring via, the feed line, the ground layer, and the end-fire described in the present specification. The antenna pattern, the director pattern, the coupling ground pattern, and the electrical connection structure may be formed of a metal material such as copper (Cu), aluminum (Al), silver (Ag), tin (Sn), gold (Au), or nickel (Ni). , Conductive materials such as lead (Pb), titanium (Ti), or alloys thereof), and may include chemical vapor deposition (CVD), physical vapor deposition (PVD), sputtering, and subtractive. ), But may be formed according to a plating method such as Additive, Semi-Additive Process (SAP), Modified Semi-Additive Process (MSAP), etc., but is not limited thereto.

On the other hand, the insulating layer disclosed herein is FR4, Liquid Crystal Polymer (LCP), Low Temperature Co-fired Ceramic (LTCC), thermosetting resin such as epoxy resin, thermoplastic resin such as polyimide, or these resins and inorganic filler Resin, prepreg, Ajinomoto build-up film (ABF), FR-4, Bisaleimide Triazine (BT), photosensitive insulation (Photo) impregnated with core materials such as glass fiber, glass cloth, and glass fabric. Imagable Dielectric (PID) resins, copper clad laminates (Copper Clad Laminate, CCL) or glass or ceramic (ceramic) insulating material may be implemented. The insulating layer is a patch antenna pattern, coupling patch pattern, annular meta pattern, combined meta pattern, feed via, array via, grounding via, shield via, wiring via, feed line, ground in the antenna device disclosed herein. The layer, the end-fire antenna pattern, the director pattern, the coupling ground pattern, and the electrical connection structure may be filled in at least a portion of the unpositioned position.

On the other hand, RF signals disclosed herein are Wi-Fi (IEEE 802.11 family, etc.), WiMAX (IEEE 802.16 family, etc.), IEEE 802.20, LTE (long term evolution), Ev-DO, HSPA +, HSDPA +, HSUPA +, EDGE, It may have a format in accordance with, but not limited to, GSM, GPS, GPRS, CDMA, TDMA, DECT, Bluetooth, 3G, 4G, 5G, and any other wireless and wired protocols designated.

Although the present invention has been described by specific embodiments such as specific components and limited embodiments and drawings, it is provided to help a more general understanding of the present invention, but the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations can be made from such a description.

110: patch antenna pattern
115: coupling patch pattern
120: feed via
125: ground layer
130: cyclic meta pattern
131a: array via
132a: second annular meta pattern
133a: third annular metapattern
134a: fourth annular metapattern
135a: fifth cyclic meta-pattern
136a: sixth annular metapattern
137a: first annular meta pattern
131b: annular meta pattern corresponding to sides of polygon
132b: annular meta pattern corresponding to corner of polygon
180: combined meta-pattern
182a: second combined meta-pattern
183a: third metabolic pattern
184a: fourth combined meta-pattern
185a: fifth coupled meta-pattern
186a: sixth combined meta-pattern
187a: first combined meta-pattern
181b: Associative meta pattern corresponding to sides of polygon
182b: Associative meta pattern corresponding to corner of polygon
190: cavity
200: connecting member
202: wiring ground layer
203: second ground layer
204: IC ground layer
210: end-fire antenna pattern
215: director pattern
220: feed line
235: coupling ground pattern
245: shielding via

Claims (14)

Ground layer;
A patch antenna pattern disposed above the ground layer and spaced apart from each other and having a polygonal top surface;
A feed via providing a feed path to the patch antenna pattern below the patch antenna pattern; And
A plurality of meta patterns spaced apart from each other above the ground layer, spaced apart from the patch antenna patterns, and spaced apart from each other; Including,
The plurality of meta patterns,
A plurality of first meta patterns arranged to surround the patch antenna pattern and arranged to cover two or more toward each of the polygons of the patch antenna pattern toward the patch antenna pattern; And
A plurality of second meta patterns sparsely arranged from the patch antenna pattern more sparse than the plurality of first meta patterns than the plurality of first meta patterns; Antenna device comprising a.
The method of claim 1,
The plurality of first meta-patterns are arranged to leave an interspace having a first spacing,
And the plurality of second meta patterns are arranged such that at least one cavity larger than a space between the plurality of first meta patterns is formed.
The method of claim 2,
And the at least one cavity comprises a plurality of cavities arranged to cover one or more cavities toward the patch antenna pattern for each side of the polygon of the patch antenna pattern.
The method of claim 2,
The separation distance between the corresponding first and second meta patterns of the plurality of first and second meta patterns in the at least one cavity is longer than the separation distance between the plurality of first meta patterns and the plurality of first meta patterns Antenna device shorter than each length.
The method of claim 1,
A plurality of array vias arranged to surround the patch antenna pattern, the plurality of array vias arranged to cover two or more toward the patch antenna pattern for each side of the polygon of the patch antenna pattern,
And the plurality of first meta-patterns are electrically connected to the plurality of array vias and three-dimensionally arranged.
The method of claim 5,
The plurality of second meta patterns are arranged three-dimensionally,
An antenna device filled with at least one of an insulating layer and air without a metal component disposed between the plurality of second meta patterns.
Ground layer;
A patch antenna pattern disposed above the ground layer and spaced apart from each other and having a polygonal top surface;
A feed via providing a feed path to the patch antenna pattern below the patch antenna pattern;
A plurality of meta-patterns, each spaced above the ground layer, spaced from the patch antenna pattern, spaced apart from each other, and arranged along at least one side of the patch antenna pattern; And
A plurality of array vias each electrically connecting some of the plurality of meta patterns; Including,
The plurality of meta patterns,
A plurality of first meta patterns electrically connected to the plurality of array vias and three-dimensionally arranged; And
A plurality of second meta-patterns three-dimensionally filled with at least one of an insulating layer and air without a metal component disposed therebetween; Antenna device comprising a.
The method of claim 7, wherein
The plurality of meta patterns are arranged to surround at least one cavity therein,
And the separation distance between the at least one cavity of the plurality of meta patterns is longer than the separation distance not between the at least one cavity.
The method of claim 8,
The difference between the first direction separation distance between the at least one cavity of the plurality of meta patterns and the second direction separation distance perpendicular to the first direction is equal to the first direction length of each of the plurality of meta patterns Antenna device greater than the difference between the second direction length.
The method according to claim 1 or 7,
An antenna device filled with at least one of an insulating layer and air without a metal component disposed between the plurality of meta patterns and the ground layer.
The method according to claim 1 or 7,
The feed via is composed of first and second feed vias arranged to be biased toward different sides of the polygon at the center of the plurality of meta patterns,
And the plurality of second meta patterns are arranged to surround the patch antenna pattern.
A ground layer having at least one through hole;
A patch antenna pattern spaced apart above the ground layer;
A feed via disposed below the patch antenna pattern to provide a feed path to the patch antenna pattern and penetrate at least one through hole of the ground layer;
A feed line spaced apart from the ground layer and spaced apart from the feed via;
An end-fire antenna pattern electrically connected to the feedline; And
A plurality of meta, each spaced above the ground layer, spaced apart from the patch antenna pattern, spaced apart from each other, and arranged to be positioned between the patch antenna pattern and the end-fire antenna pattern when at least a portion thereof is viewed in a vertical direction; pattern; Including,
The plurality of meta-patterns are arranged to provide at least one cavity in a horizontal direction towards the end-fire antenna pattern,
And the separation distance between the at least one cavity of the plurality of meta patterns is longer than the separation distance not between the at least one cavity.
The method of claim 12,
Each further includes a plurality of array vias electrically connecting some of the plurality of meta patterns;
The plurality of meta patterns,
A plurality of first meta patterns electrically connected to the plurality of array vias and three-dimensionally arranged; And
A plurality of second meta-patterns three-dimensionally arranged farther from the patch antenna pattern than the plurality of first meta-patterns, and three-dimensionally arranged by filling at least one of an insulating layer and air without a metal component disposed therebetween; Antenna device comprising a.
The method of claim 12,
And a second ground layer spaced below the ground layer and spaced apart from the feed line,
And the second ground layer provides a second cavity in a horizontal direction toward the end-fire antenna pattern.

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