Antenna device

Abstract

The present invention provides an antenna device comprising: a body; a signal pin coupled to the body so as to transmit a first signal to the inside of the body; a plurality of first dielectrics stacked in a first space formed inside the body; and a first end portion arranged on one end of the body, wherein: the plurality of first dielectrics form a second signal transmitted to the outside in response to the first signal; and the first end portion mediates the transmission of the second signal.

Description

antenna device

[0001] The present invention relates to an antenna device.

[0002] Radiofrequency (RF) hyperthermia focuses on raising the temperature of the target area to above 45°C. When the temperature reaches 45°C, collagen in the dermal layer is stimulated, tightening the skin.

[0003] Skin tightening technology focuses on generating heat in the dermis layer, approximately 2 to 4 mm deep.

[0004] However, most studies on RF hyperthermia have focused on tumor ablation or using electrodes to emit electromagnetic fields, which are highly ineffective.

[0005] The use of microwaves in skin tightening treatments has been shown to be effective in minimizing discomfort. However, the problem lies in their large effective area. Because microwaves spread widely, focusing on the target area becomes difficult, and there's a risk of unintended temperature increases.

[0006] Previous studies on RF hyperthermia technologies for skin tightening have used electrodes that generate electromagnetic fields. Electrodes for generating electromagnetic fields are advantageous for designing small, portable devices. However, many of these designs do not consider impedance matching, resulting in impedance mismatch issues that require higher power or longer treatment times to achieve the desired skin-tightening temperatures.

[0007] The technical problem to be solved by the present invention is to provide an antenna device that can apply an electromagnetic field concentrated on a specific area and is miniaturized to enhance convenience in using thermal therapy.

[0008] In order to solve the above technical problem, the present invention provides an antenna device including a body, a signal pin coupled to the body and transmitting a first signal to the inside of the body, a plurality of first dielectrics stacked in a first space formed inside the body, and a first end disposed at one end of the body, wherein the plurality of first dielectrics form a second signal transmitted to the outside in response to the first signal, and the first end mediates transmission of the second signal.

[0009] The antenna device of the present invention further includes a conductive pattern arranged on at least one surface of the plurality of first dielectrics, and the conductive pattern can form the second signal together with the plurality of first dielectrics.

[0010] The above challenge pattern can be formed in a frame shape.

[0011] The above challenge pattern can be formed along a rectangular border.

[0012] The above challenge pattern can be formed along a square border.

[0013] The size of the above challenge pattern can gradually increase in the direction of the first end.

[0014] The signal pin can be inserted into the inside of the body in a direction perpendicular to the stacking direction of the first dielectric.

[0015] A via hole may be formed in the center of at least one of the plurality of first dielectrics.

[0016] The above signal pin can penetrate at least one of the above via holes.

[0017] The above via hole may have a conductive layer formed inside it.

[0018] The antenna device of the present invention further includes a second dielectric disposed below the plurality of first dielectrics, and the first dielectric and the second dielectric can be filled in the first space.

[0019] The body may include a first region defining a space in which the plurality of first dielectrics are stacked, and a second region defining a second space surrounding at least a portion of the first region together with the first region.

[0020] The above body further includes a connecting portion connecting the first zone and the second zone, and the second space may have a cross-section in the shape of the letter ‘ㄷ’.

[0021] The antenna device of the present invention may further include a second end disposed at the other end of the body, and the second end may include an inlet and an outlet forming a supply and discharge path of fluid in the second space.

[0022] The present invention has the effect of increasing convenience in using thermal therapy by miniaturizing the device while allowing an electromagnetic field to be applied concentrated to a specific area.

[0023] Figure 1 illustrates an antenna device according to one embodiment of the present invention.

[0024] Figures 2 and 3 illustrate a partial configuration of an antenna device according to one embodiment of the present invention.

[0025] Figure 4 shows a partial configuration of an antenna device according to one embodiment of the present invention.

[0026] Figure 5 shows a partial configuration of an antenna device according to one embodiment of the present invention.

[0027] FIG. 6 illustrates geometric variables of some configurations of an antenna device according to one embodiment of the present invention.

[0028] FIG. 7 illustrates geometric variables of some configurations of an antenna device according to one embodiment of the present invention.

[0029] Figure 8 is a simulation of electromagnetic field propagation characteristics after inserting an internal structure into a rectangular waveguide.

[0030] Figure 9 shows the parameters according to frequency for the structure of Figure 8.

[0031] Figure 10 shows the permittivity according to frequency for the structure of Figure 8.

[0032] Figure 11 shows the investment rate according to frequency for the structure of Figure 8.

[0033] Figure 12 compares the antenna devices of Figures 6 and 7, a structure filled only with dielectric instead of an internal structure, and a structure filled only with empty air without an internal structure, respectively, at the same size.

[0034] Figure 13 shows the prototype of Figures 6 and 7 and its performance analysis.

[0035] Fig. 14 shows the experimental results regarding thermal performance by operation of the antenna devices of Figs. 6 and 7.

[0036] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated and described in detail in the drawings. However, this is not intended to limit the present invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0037] In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description is omitted.

[0038] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0039]

[0040] FIG. 1 is an exploded view (left) and an assembled view (right) of an antenna device (100) according to one embodiment of the present invention, FIGS. 2 and 3 illustrate a dielectric layer as a part of the antenna device (100), FIG. 4 illustrates an internal connection structure of a connector of a body (110), and FIG. 5 illustrates a first space (111) and a second space (112) of the body (110).

[0041] Referring to FIGS. 1 to 5, an antenna device (100) according to one embodiment of the present invention will be described.

[0042] An antenna device (100) according to one embodiment of the present invention may be configured to include a body (110), a coaxial connector (120), an internal structure (130), a first end (150), and a second end (160).

[0043] The body (110) can form the outer and inner surfaces of the antenna device (100), respectively.

[0044] The outer and inner surfaces of the body (110) have the outer surface shape of a square pillar, and the outer and inner surfaces can be connected to have a certain thickness.

[0045] The body (110) has a first opening at both ends along the z-axis (longitudinal direction, upward direction in the drawing). The first opening and the inner space are defined as a first space (111) defined by the body (110). The first opening may be formed to have a size corresponding to the area of ​​the first dielectric (131) or the first dielectric (131) and the second dielectric (132) arranged in the first space (111).

[0046] The first space (111) and the portion of the body (110) surrounding the first space (111) can function as a waveguide.

[0047] A mounting groove (113) may be formed at one end of the z-axis of the body (110). The mounting groove (113) provides a space in which the first end (150) can be mounted, and a portion of the body (110) surrounding the outside of the mounting groove (113) defines the horizontal plane position of the first end (150).

[0048] A second end (160) can be coupled to the z-axis end of the body (110).

[0049] The z-side other end of the body (110) may include not only the first opening but also a second opening. The second opening may be connected to a second space (112) that can be filled with coolant.

[0050] A coaxial connector (120) can be coupled to the outer surface of the body (110).

[0051] Fig. 5 is a cross-sectional view (a) of a portion of an antenna device (100) according to an embodiment of the present invention, showing a structure (a) and a cross-section (b) of a body (110) separated by a dotted line. In reality, the body (110) may be a structure in which separated structures are continuously connected.

[0052] The body (110) can be divided into a first zone (114), a second zone (115), and a connecting portion (116).

[0053] The first zone (114) forms a first space (111) therein. The first space (111) can function as a waveguide together with the inner surface of the first zone (114).

[0054] The second zone (115) is formed in a similar shape to the first zone (114), but is formed with a larger length and thickness.

[0055] A second space (112) in the shape of a moat can be formed between the first zone (114) and the second zone (115).

[0056] The first zone (114) and the second zone (115) can be connected by a connecting portion (116).

[0057] The outer surface of the first zone (114), the inner surface of the second zone (115), and the outer surface of the connecting portion (116) together define a second space (112). The second space (112) may have a cross-section in the shape of the letter 'ㄷ' having a thickness of approximately 100 nm in the longitudinal direction, as illustrated in FIG. 5. The 'ㄷ' shape may be smoothly connected in a curve when the direction is changed, and the end may be formed in a shape that slightly protrudes toward the connecting portion (116).

[0058] The upper end of the second space (112) is closed by the upper surface of the body (110), and the lower end is mostly closed by the second end (160). However, the inlet (161) and outlet (162) included in the second end (160) form a flow path leading from the outside to the second space (112).

[0059] The second space (112) is formed to a position adjacent to the first end (150) at the top so that the heat transferred from the first end (150) can be transferred to the cooling water filled in the second space (112) through the upper surface of the body (110).

[0060] In summary, the first zone (114) of the body (110) can be understood as a part for defining a waveguide, and the second zone (115) can be understood as a part for defining a cooling structure of the antenna device (100) by forming a fluid flow path.

[0061] The cooling structure of the present invention has the effect of transferring not only the heat transferred from the first end (150), but also the heat that may be generated in the internal structure (130) during the transmission of radio waves to the cooling water filling the second space (112). Accordingly, the antenna device (100) of the present invention has excellent effects not only in terms of safety during use but also in terms of durability.

[0062] The body (110) is formed of a metal material. For example, the body (110) may be formed of copper (Cu), silver (Ag), etc.

[0063] The coaxial connector (120) is for transmitting an electromagnetic signal and is coupled to the outer surface or lower surface of the body (110).

[0064] The coaxial connector (120) includes a signal pin (121), and the signal pin (121) penetrates into the inside of the first space (111) to transmit a first signal. That is, the signal pin (121) can be inserted into the inside of the waveguide to transmit the first signal.

[0065] A plurality of first genetic elements (131) can form a second signal transmitted to the outside in response to the first signal.

[0066] The signal pin (121) can be coupled in a form that penetrates the first dielectric (131) or the second dielectric (132). For coupling, a through hole (133) can be formed in the first dielectric (131) or the second dielectric (132).

[0067] The signal pin (121) can penetrate into the inside of the body (110) and be inserted into the through hole (133) in a direction perpendicular to the stacking direction of the first dielectric.

[0068] Unlike the drawing, a via hole may be formed in the center of at least one of the second dielectric (132) and the plurality of first dielectrics (131). Here, the signal pin (121) may be arranged to penetrate at least one via hole.

[0069] Some of the plurality of first dielectrics (131) located on the first end (150) side may not have via holes formed, and in this case, the signal pin (121) is arranged to penetrate only the second dielectric (132) in which the via holes are formed and the remaining portion of the plurality of first dielectrics (131).

[0070] The coaxial connector (120) may be an SMA (Sub-Miniature version A) connector.

[0071] The internal structure (130) is placed in the first space (111), which is an inner space formed by the body (110). The internal structure (130) can be understood as being placed inside the waveguide.

[0072] The internal structure (130) may be composed of a laminated structure of a first dielectric (131) and a conductive pattern (140), but may also include a second dielectric (132) that does not include a conductive pattern (140). In the description of the present invention, a structure including the second dielectric (132) will be described.

[0073] The first dielectric (131) and the second dielectric (132) may be of the same material, but do not necessarily have to be the same.

[0074] The first dielectric (131) and the second dielectric (132) may be, for example, Tefron, but are not limited thereto.

[0075] A conductive pattern (140) can be arranged and formed on one side of the first dielectric (131).

[0076] Here, one side of the first dielectric (131) may be in the longitudinal direction, the direction of propagation of electromagnetic waves, or the upward direction in the drawing.

[0077] The challenge pattern (140) can form the second signal together with a plurality of first dielectrics (131).

[0078] The first dielectric (131) in which the challenge pattern (140) is arranged and formed can form a pattern in which multiple layers are stacked in the longitudinal direction. This structure can be said to be a waveguide filled with a meta structure formed inside the waveguide.

[0079] The challenge pattern (140) may be formed of copper (Cu), but is not necessarily limited thereto.

[0080] The second dielectric (132) may be positioned between the second end (160) and the first dielectric (131). Since the second dielectric (132) does not include a conductive pattern (140) structure, it does not need to be laminated in a pattern and may be formed as a single layer. The second dielectric (132) occupies the remaining space in the first space (111) excluding the space occupied by the first dielectric (131) and the conductive pattern (140).

[0081] The conductive pattern (140) may be formed in a frame shape. Specifically, as illustrated in FIGS. 2 and 3 , the conductive pattern (140) may be formed with a certain thickness along a square or rectangular border. However, the conductive pattern is not necessarily limited to this shape, and various conductive patterns (140) such as ring shapes, triangle shapes, and semicircular shapes may be formed on the upper surface of the first dielectric (131).

[0082] The size of the challenge pattern (140) can be formed by gradually increasing in the direction of the first end (150).

[0083] The plurality of first dielectrics (131) may include a first dielectric having a conductive pattern (140) formed thereon and a first dielectric having no conductive pattern (140) formed thereon. Here, the first dielectric may not have a via hole formed thereon.

[0084] The first-second dielectric can be placed between a plurality of stacked first-first dielectrics.

[0085] The center of both sides of the first-1 dielectric and the via hole may have a conductive layer formed therein, and a plurality of first-1 dielectrics may be electrically connected to each other through the conductive layer.

[0086] The challenge pattern (140) may be a thin film filled between small and large rectangles.

[0087] The conductive pattern (140) may be arranged on one side of the first dielectric (131) so that its center of gravity is the same as that of the first dielectric (131) so as not to be biased in either the first direction or the second direction. Alternatively, the conductive pattern (140) may be arranged on one side of the first dielectric (131) so as to be biased in either the first direction or the second direction.

[0088] The first end (150) is connected to one end of the body (110).

[0089] The first end (150) is formed of a dielectric and mediates the transmission of electromagnetic wave signals.

[0090] For example, the first end (150) may include a sapphire material.

[0091] A first signal injected into a first space (111) by a coaxial connector (120) forms a second signal transmitted to the outside by a waveguide formed by a first zone (114) and an internal structure (130), and the second signal can be transmitted to the outside via a first end (150).

[0092] Additionally, the first end (150) can come into direct contact with human skin when the antenna device (100) of the present invention is used as a heating device.

[0093] The second end (160) can be coupled to the body (110) in a form that closes the other end of the body (110). However, the second end (160) defines a passage with the second space (112) formed inside the body (110) including the inlet (161) and the outlet (162).

[0094]

[0095] Figures 6 and 7 illustrate geometrical variables of some configurations of an antenna device (100) according to one embodiment of the present invention. Here, the cooling structure is not included as it is for simulation of signal transmission of the antenna device (100). That is, the second area (115), the second space (112) and the connection portion (116) of the body (110), and the inlet (161) and outlet (162) of the second end (160) are not included.

[0096] The challenge pattern (140) is formed with a certain thickness along a square border.

[0097] The length of one side of the inner square of the challenge pattern (140) is x1, and the length of one side of the outer square is x2 = y2.

[0098] The first direction length of the first dielectric (131) is x3, and the second direction length perpendicular to the first direction is y1.

[0099] Here, x1=7 mm, x2=y2=9.5 mm, x3=17.4 mm, y1=10 mm are designed. The perimeters of the inner and outer squares of the challenge pattern (140) are 28 mm and 38 mm, respectively.

[0100] The first direction length of the body (110) is x4, the second direction length is y3, and the third direction length perpendicular to both the first and second directions is z.

[0101] Here, x4=19.4 mm, y3=12 mm, z=30 mm. The thickness of the body (110) is d=1 mm.

[0102]

[0103] Figure 8 is a simulation of electromagnetic field propagation characteristics after inserting an internal structure (130) into a rectangular waveguide.

[0104] The internal structure (130) includes a first dielectric (131) and a conductive pattern (140), as exemplified in some configurations of the present invention.

[0105] The challenge pattern (140) contains copper (Cu) and is printed on the first dielectric (131).

[0106] The first dielectric (131) contains Tefron, has a thickness of 2 mm, and a relative permittivity ε. r =2.4.

[0107] The internal structure (130) used a structure in which nine layers of the same first dielectric (131) and conductive pattern (140) were stacked.

[0108] As shown in Fig. 8, the internal structure (130) is inserted into an aperture waveguide (118) with both ends open.

[0109] The internal structure (130) can be a metastructure, and calculations related to the parameter S (S parameter) of the metastructure are as shown in [Mathematical Formula 1] to [Mathematical Formula 5] below.

[0110]

[0111]

[0112] (where k0 is the wave number in free space, f is the frequency, and c is the speed of light in vacuum)

[0113]

[0114]

[0115] (Here, z represents the effective impedance, S11 represents the reflection coefficient, which means the ratio of the incident wave to the signal reflected from the device, and S21 represents the transmission coefficient, which means the ratio of the transmitted signal.)

[0116]

[0117]

[0118] (where n is the effective refractive index, d is the largest dimension of the metastructure, and are the imaginary and real parts of the function, respectively)

[0119]

[0120]

[0121] (Here, ε eff is the effective permittivity)

[0122]

[0123]

[0124] (Here, μ eff is the effective investment rate)

[0125]

[0126] Figure 9 shows the parameters according to frequency for the structure of Figure 8.

[0127] S 11 It was smallest around the frequency of 2.4 GHz, and S 21 It appears high around 2.4 GHz, indicating that the reflection loss is the lowest and transmission characteristics are good around 2.4 GHz.

[0128] Figure 10 shows the permittivity according to frequency for the structure of Figure 8.

[0129] Figure 11 shows the investment rate according to frequency for the structure of Figure 9.

[0130] It can be seen that the real components of permittivity and permeability change sharply to negative values ​​around 2.4 GHz and then increase again toward positive values.

[0131] Naturally, the permittivity of a material in a radio wave appears as a positive number and does not show a sudden change according to a change in frequency, but in a meta-structure such as the internal structure (130) of the present invention, a sudden change is artificially shown around 2.4 GHz, and a negative permittivity and negative permeability may appear.

[0132]

[0133] Next, we will examine the experimental results for the antenna device (100) illustrated in FIGS. 6 and 7. The geometric variables are as described above.

[0134] The waveguide formed by the body (110) is filled with an internal structure (130) and has a small aperture size of 10 mm × 17.4 mm (0.08λ × 0.14λ, where λ is the wavelength). In the past, in the case of a waveguide with an empty interior, a waveguide of the order of 42 mm × 89.4 mm × 80 mm was required to design a waveguide operating at 2.45 GHz, but the antenna device (100) including the internal structure (130) (metastructure) of the present invention can be designed to the order of 12 mm × 19.4 mm × 30 mm to operate at 2.45 GHz.

[0135] In general, the cutoff frequency of a rectangular waveguide is as shown in [Mathematical Formula 6].

[0136]

[0137]

[0138] (Here, w represents the long side of the rectangular waveguide)

[0139]

[0140] In the absence of a metastructure, the TE10 mode was the dominant mode inside the waveguide, and design was difficult with an aperture size of 61 mm or less. However, in the case of including a metastructure, the TE12 mode was dominant, and design was possible with an aperture size of 10 mm × 17.4 mm.

[0141]

[0142] FIG. 12 compares the antenna device (100) of FIGS. 6 and 7 (structure A), a structure filled only with a dielectric instead of an internal structure (130) (structure B), and a structure filled only with empty air without an internal structure (130) (structure C) in the same size.

[0143] In structure B, the dielectric is made of Teflon.

[0144] The C structure had a resonant frequency of about 12 GHz, the B structure had a resonant frequency of 6.4 GHz, and the A structure had a resonant frequency of 2.45 GHz. It can be seen that the antenna device (100) including the metastructure requires a smaller resonant frequency in the same size, or a smaller size to achieve the same resonant frequency.

[0145] Waveguides containing metastructures can be designed to be miniaturized by reducing their size by 98.8% compared to waveguides filled only with air to achieve the same resonant frequency.

[0146] This miniaturized design means that the antenna device (100) can be usefully applied in a realistic size to RF treatment or treatment systems, such as high-frequency thermal devices.

[0147] In addition, examining the electric field distribution of Fig. 12, Structure A exhibited a strong upward electric field distribution and a weak rearward electric field distribution in the near field. This means that when the present invention is used as a heating device, the heating effect is limited to one direction, ensuring not only the therapeutic effect but also the safety of the user or practitioner.

[0148]

[0149] Figure 13 shows the prototype of Figures 6 and 7 and its performance analysis.

[0150] In Fig. 13, A is a photograph of a prototype of an antenna device (100), B is the S parameter, C is the peak gain, and D and E are comparisons of simulation data and measured data regarding radiation patterns in the xz plane and yz plane.

[0151] It was found that the antenna device (100) was impedance matched at approximately 2.45 GHz, and that the reflection loss was almost identical to the simulation results.

[0152] It can be seen that the peak gain is maximum at 2.45 GHz, indicating that the radiation efficiency of the antenna device (100) is the highest.

[0153] The normalized values ​​in the xz plane and yz plane mostly converge to 0 in the same polarization (Co-Pol.) and show very small values ​​in the cross-polarization (Cross-Pol.), indicating that energy is smoothly radiated in the radiation direction and that unnecessary polarization is small.

[0154]

[0155] Fig. 14 shows the experimental results regarding thermal performance by operation of the antenna device (100) of Figs. 6 and 7.

[0156] Figure 14a shows the surface temperature of pork at various operating powers and times. The antenna device (100) was connected to an RF generator with a frequency of 2.45 GHz by a coaxial connector (120). The antenna device (100) was positioned 4 mm above the pork phantom, and the temperature sensor was positioned 4 mm below the pork skin surface, respectively. The effective area of ​​heating by microwaves in the pork phantom was found to be 18 mm × 14 mm, which is a very narrow and concentrated area.

[0157] Figure 14b compares the simulated and measured temperatures at a location 4 mm below the skin surface. The simulation was performed using the Sim4Life platform, applying a human face model, while the measured results were for pork, as described in Figure 13a. In the human model simulation, it was found that temperatures could be raised by 35.4°C and 11.6°C, respectively, within 60 seconds using RF powers of 80 W and 20 W, respectively.

[0158] Figure 14c shows the results of thermal therapy using an antenna device (100) on a human face (top) and stomach (bottom). The subject was a 27-year-old male, and the antenna aperture was positioned 5 to 8 mm away from the face / stomach. The RF input was 2.45 GHz and 20 W. The face / stomach temperature before thermal therapy was approximately 32°C, but after 60 seconds, the temperature of the target area increased to approximately 45°C.

[0159] The temperature rise results for pork and human face / stomach were found to be similar.

[0160]

[0161] Classification Type Frequency (GHz) Invasiveness Power (W) Temperature increase (time required) Target Comparison Example 1 Monopole 2.45 Invasive 2.5 10 ℃ (1500 s) Deep irradiation Comparison Example 2 Dipole 0.434 Non-invasive 5 10 ℃ (3600 s) Shallow tumor Comparison Example 3 Electrode 0.448 Non-invasive 200 1 1.1 ℃ (600 s) Subcutaneous fat Comparison Example 4 Electrode 0.001 Non-invasive 65 10 ℃ (180 s) Skin tightening Example Metamaterial 2.45 Non-invasive 20 / 80 1 1.6 / 3 5.4 ℃ (60 s) Skin tightening

[0162]

[0163] [Table 1] compares thermal therapy using comparative examples and thermal therapy using the antenna device (100) of the present invention.

[0164] Referring to [Table 1], when 2.45 GHz and low power of 2.5 W were used for deep tumor treatment using an invasive method, a relatively long time of 1500 s was required for a temperature increase of 10 ℃ (Comparative Example 1), and a non-invasive method for shallow tumor treatment required more time (Comparative Example 2).

[0165] In the case of electrode hyperthermia therapy using a relatively high power of 200 W as a non-invasive method, the temperature could be raised by about 10°C in a relatively short time of 600 s (Comparative Example 3), and in the case of using 65 W of power, the temperature could be raised by about 10°C in 180 s (Comparative Example 4).

[0166] In comparison, the antenna device (100) of the present invention can raise the temperature of only a narrow target area by 11.6°C or 35.4°C within 60 seconds with a low power of 20 W or 80 W, and thus it can be seen that it has the fastest and most efficient heating performance compared to comparative examples.

[0167]

[0168] The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. In this application, terms such as "comprise" or "have" are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood to not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Claims

1. Body; A signal pin coupled to the body and transmitting a first signal to the inside of the body; A first dielectric disposed in a first space formed inside the body; and comprising a first end disposed at one end of the above body, The first genetic material forms a second signal transmitted to the outside in response to the first signal, The above first end mediates the transmission of the second signal. Antenna device.

2. In paragraph 1, Further comprising a conductive pattern disposed on at least one side of the first dielectric, The above challenge pattern is Forming the second signal together with the first genetic material Antenna device.

3. In paragraph 2, The above challenge pattern is made up of a frame shape. Antenna device.

4. In paragraph 3, The above challenge pattern is formed along a rectangular border. Antenna device.

5. In paragraph 3, The above challenge pattern is formed along a square border. Antenna device.

6. In paragraph 3, The size of the above challenge pattern gradually increases in the direction of the first end. Antenna device.

7. In paragraph 1, The above signal pin is Penetrating into the inside of the above body and inserted in a direction perpendicular to the stacking direction of the first dielectric Antenna device.

8. In paragraph 2, A via hole is formed in the center of the first dielectric layer. Antenna device.

9. In paragraph 8, The above signal pin penetrates at least one of the above via holes. Antenna device.

10. In paragraph 8, The above via hole has a conductive layer formed inside. Antenna device.

11. In paragraph 1, Further comprising a second dielectric disposed below the first dielectric, The first dielectric and the second dielectric are filled in the first space. Antenna device.

12. In paragraph 1, The above body A first zone defining a space in which the first dielectric is stacked in multiple pieces; and A second zone comprising a second space defining a second space at least partially surrounding the perimeter of the first zone together with the first zone. Antenna device.

13. In paragraph 12, The above body further includes a connecting portion connecting the first zone and the second zone, The above second space has a cross-section in the shape of the letter ‘ㄷ’. Antenna device.

14. In paragraph 12, Further comprising a second end disposed at the other end of the above body, The second end includes an inlet and an outlet that form a fluid supply and discharge path in the second space. Antenna device.

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