Antenna
The hybrid mode patch configuration in the antenna design addresses the challenge of diverse frequency coverage by improving impedance and isolation, enabling efficient operation across multiple bands.
Patent Information
- Application Number
- PCT/KR2025/003678
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-03-26
- Filing Date
- 2025-03-21
- Publication Date
- 2025-10-02
AI Technical Summary
Existing antenna devices struggle to provide effective frequency coverage across diverse frequency bands, particularly in communication terminals, necessitating improved antenna technology.
The antenna design incorporates a hybrid mode patch configuration with multiple radiating patches of different frequencies and orientations, including a first radiating patch within a second patch, spaced apart and arranged on the same plane, to enhance frequency coverage and reduce interference.
This design improves impedance and isolation between low-band and high-band frequencies, enhancing bandwidth and performance by allowing simultaneous operation across multiple frequency bands.
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Figure KR2025003678_02102025_PF_FP_ABST
Abstract
Description
antenna
[0001] The present invention relates to an antenna, and more particularly, to an antenna including a hybrid mode patch.
[0002] Research is generally being conducted to improve the performance of antenna devices in communication terminals. This is because antenna devices are essentially responsible for transmitting and receiving signals. Accordingly, MIMO (Multiple-Input Multiple-Output) antenna devices have recently been proposed as antenna devices installed in communication terminals. MIMO antenna devices comprise multiple antenna elements. These MIMO antenna devices transmit and receive signals across multiple frequency bands via the antenna elements, enabling access to various communication networks.
[0003] Recently, as the frequency bands required for communication have diversified, antenna technology that can improve frequency coverage is required.
[0004] The technical problem to be solved by the present invention is to provide an antenna including a hybrid mode patch.
[0005] In order to solve the above technical problem, an antenna according to one embodiment of the present invention includes a first radiating patch having a rectangular shape; and a second radiating patch having a hole formed therein corresponding to the shape of the first radiating patch, wherein the first radiating patch is placed in the hole of the second radiating patch.
[0006] Additionally, the first radiation patch and the second radiation patch may be spaced apart from each other.
[0007] Additionally, the first radiating patch and the second radiating patch may be arranged on the same plane.
[0008] Additionally, the area of the hole of the second radiating patch may be wider than the area of the first radiating patch.
[0009] Additionally, the frequency of the radiation signal of the first radiation patch and the frequency of the radiation signal of the second radiation patch may be different.
[0010] Additionally, the frequency of the radiation signal of the first radiation patch may be higher than the frequency of the radiation signal of the second radiation patch.
[0011] In addition, a third radiating patch having a square shape is disposed spaced apart from the first radiating patch, and the first radiating patch can be disposed rotated 45 degrees relative to the third radiating patch.
[0012] Additionally, it may include a power supply pad spaced apart from and positioned below the third radiating patch.
[0013] Additionally, the above-mentioned power supply pad can indirectly supply power to the third radiating patch.
[0014] In addition, the above-mentioned power supply pad includes two power supply pads arranged at positions corresponding to the corners of the third radiating patch, and the two power supply pads may include an H-pole power supply pad and a V-pole power supply pad.
[0015] Additionally, the power supply pad may have a tapered shape in an area close to the center of the third radiating patch.
[0016] Additionally, the third radiating patch may include a recessed portion in which each corner is recessed inward.
[0017] Additionally, the second radiating patch can be directly connected to the power supply unit.
[0018] In order to solve the above technical problem, a front-end module according to an embodiment of the present invention includes a signal input unit; a signal output unit; an antenna connected to the signal input unit or the signal output unit; and a switch connecting the antenna to one of the signal input unit or the signal output unit, wherein the antenna includes a first radiating patch having a rectangular shape; and a second radiating patch having a hole formed therein corresponding to the shape of the first radiating patch, and the first radiating patch is arranged in the hole of the second radiating patch.
[0019] Additionally, it may include a first amplifier and filter connected between the signal output unit and the switch; and a second amplifier connected between the signal input unit and the switch.
[0020] According to embodiments of the present invention, low-band and high-band patches and filters can be simultaneously designed on a single radiating patch. Furthermore, impedance and isolation in the low-band and high-band can be improved, and bandwidth and performance can be enhanced.
[0021] FIG. 1 illustrates an antenna according to one embodiment of the present invention.
[0022] FIGS. 2 to 5 are drawings for explaining each configuration of an antenna according to an embodiment of the present invention.
[0023] FIGS. 6 to 13 are drawings for explaining an antenna according to an embodiment of the present invention.
[0024] Figure 14 is a block diagram of a front-end module according to an embodiment of the present invention.
[0025] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.
[0026] However, the technical idea of the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.
[0027] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.
[0028] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.
[0029] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.
[0030] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and are not intended to limit the nature, order, or sequence of the components.
[0031] And, when a component is described as being 'connected', 'coupled', or 'connected' to another component, it may include not only cases where the component is 'connected', 'coupled', or 'connected' directly to the other component, but also cases where the component is 'connected', 'coupled', or 'connected' by another component between the component and the other component.
[0032] Additionally, when described as being formed or arranged "above" or "below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below," the meaning may include not only the upward direction but also the downward direction based on one component.
[0033] Fig. 1 illustrates an antenna according to one embodiment of the present invention. Figs. 2 to 5 are drawings for explaining each component of an antenna according to an embodiment of the present invention, and Figs. 6 to 13 are drawings for explaining an antenna according to an embodiment of the present invention.
[0034] An antenna (100) according to one embodiment of the present invention includes a first radiating patch (110) and a second radiating patch (120). The antenna according to one embodiment of the present invention may be an antenna that radiates signals of multiple frequency bands. For example, it may be an antenna that can transmit and receive signals of a frequency band that includes all of the n257, n258, n259, n260, and n261 bands, which are mmWave 5G frequency bands. The antenna (100) may be an antenna applied to mobile devices, base stations, repeaters, etc., and may perform short-range, ultra-high-speed, wideband communication of mobile devices and mobility devices.
[0035] An antenna device according to one embodiment of the present invention may include an antenna (100). Here, the antenna substrate may refer to a hybrid antenna substrate, an antenna in package (AIP), an antenna array substrate, an antenna array, etc.
[0036] The antenna substrate may include an antenna portion including an antenna and a routing portion. In one embodiment, the antenna portion may be disposed on the routing portion. In one embodiment, the antenna substrate may further include a core portion, and the antenna portion may be disposed on the core portion, and the routing portion may be disposed below the core portion. In one embodiment, the antenna portion and the routing portion may be disposed on the same horizontal plane. In one embodiment, the routing portion and the antenna portion may be disposed spaced apart from each other, and the routing portion and the antenna portion may be electrically connected to each other by a connecting member, such as a flexible printed circuit board (FPCB), a solder ball, or a metal bump. In the following description, for the convenience of explanation, it is assumed that the antenna portion of the antenna substrate is disposed on the routing portion, but it is of course applicable to cases where the antenna substrate has the structure of the above embodiments.
[0037] The antenna substrate may include a plurality of wiring layers and a plurality of insulating layers that are stacked and spaced apart from each other in the vertical direction. In one embodiment, the antenna portion may include a plurality of first wiring layers and a plurality of first insulating layers. And the routing portion may include a plurality of second wiring layers arranged under the plurality of first wiring layers and a plurality of second insulating layers arranged under the plurality of first insulating layers.
[0038] Here, the wiring layer may include a radiating patch, a stub, a feed pad, a feed section, a ground, and a transmission line that constitute the antenna. The current supplied through the port may be supplied to the antenna section through the transmission line. In addition, the wiring layer may include a metal material such as copper (Cu), aluminum (Al), silver (Ag), tin (Sn), gold (Au), nickel (Ni), lead (Pb), titanium (Ti), or an alloy thereof.
[0039] Here, each of the first insulating layer and the second insulating layer may include a thermosetting resin such as an epoxy resin, a thermoplastic resin such as a polyimide, or a material including a reinforcing material such as glass fiber and / or an inorganic filler together with these, for example, ABF, PID, BCC, or prepreg (PPG). In addition, each of the first insulating layer and the second insulating layer may include a glass plate or a ceramic plate.
[0040] The wiring layer included in the routing section may include signal patterns, power patterns, or resistance patterns. In addition, the routing section may have a combination of various routing characteristics, such as power / data, input / output, and RF (Radio Frequency) routing.
[0041] The second radiating patch (120) has a hole (130) formed therein corresponding to the shape of the first radiating patch (110), and the first radiating patch (110) is placed in the hole (130) of the second radiating patch (120). The first radiating patch (110) may have a rectangular shape, and the hole (130) of the second radiating patch (120) may be formed in a rectangular shape corresponding to the rectangular shape of the first radiating patch (110). The rectangular shape is for simply indicating the radiating patch, and it goes without saying that the radiating patch may have various shapes other than a rectangular shape, such as a circular shape, an oval shape, or a shape including a slit or a slot.
[0042] The first radiating patch (110) and the second radiating patch (120) may be spaced apart from each other. The area of the hole (130) of the second radiating patch (120) may be larger than the area of the first radiating patch (110). Since the area of the first radiating patch (110) is smaller than the area of the hole (130) of the second radiating patch (120), the first radiating patch (110) may be positioned inside the hole (130) of the second radiating patch (120). At this time, the first radiating patch (110) may be spaced apart from the second radiating patch (120). The outer side of the first radiating patch (110) and the inner side of the second radiating patch (120) may be spaced apart from each other. At this time, the distances from all surfaces of the first radiation patch (110) to the second radiation patch (120) may be arranged so that they are equally spaced apart. When the first radiation patch (110) and the second radiation patch (120) are circular or oval-shaped, the distances from all points to the second radiation patch (120) may be arranged so that they are equally spaced apart. Meanwhile, the present disclosure is not limited thereto, and the distances from at least some of all surfaces (or all points) of the first radiation patch (110) to the second radiation patch (120) may be arranged so that they are equally spaced apart.
[0043] The first radiating patch (110) and the second radiating patch (120) may be arranged on the same plane. The first radiating patch (110) and the second radiating patch (120) may be arranged concentrically on the same plane. That is, the first radiating patch (110) and the second radiating patch (120) are formed on the same layer, and the two radiating patches are formed on one layer, thereby reducing the number of required layers or reducing the overall size of the antenna.
[0044] The frequency of the radiation signal of the first radiation patch (110) and the frequency of the radiation signal of the second radiation patch (120) may be different. Here, the frequency of the radiation signal of the first radiation patch (110) may be higher than the frequency of the radiation signal of the second radiation patch (120). Or, conversely, the frequency of the radiation signal of the second radiation patch (120) may be higher than the frequency of the radiation signal of the first radiation patch (110). The frequency band of the radiation signal of the first radiation patch (110) and the frequency band of the radiation signal of the second radiation patch (120) may be different. The frequency band of the radiation signal of the first radiation patch (110) may be relatively lower than the frequency band of the radiation signal of the second radiation patch (120). The frequency band of the radiation signal of the first radiation patch (110) may be a low band (LB), and the frequency band of the radiation signal of the second radiation patch (120) may be a high band (HB). For example, the frequency band of the radiation signal of the first radiation patch (110) may be a low band of 24.25 to 29.5 GHz, and the radiation signal of the second radiation patch (120) may radiate a signal in a high band of 37.0 to 43.5 GHz.
[0045] The first radiating patch (110) and the second radiating patch (120) are spaced apart from each other on the same plane, so that a slot can be formed in the space (130) between the first radiating patch (110) and the second radiating patch (120). Here, the slot is formed in a closed-slot structure, and the slot can form a filter. The slot can form a band stop filter. Through this, the interference between the radiating signal of the first radiating patch (110) and the radiating signal of the second radiating patch (120) can be reduced, thereby increasing the isolation and improving the impedance. The first radiation patch (110) and the second radiation patch (120) can be arranged on the same plane, and for the sake of representation, the second radiation patch (120) is omitted in FIGS. 2, 3, and 6. It is natural that the first radiation patch (110) and the second radiation patch (120) are arranged in FIGS. 2, 3, and 6 as well.
[0046] The first radiating patch (110) and the second radiating patch (120) are spaced apart from each other so that coupling is formed between the first radiating patch (110) and the second radiating patch (120), which can be used in designing the radiating signals of the first radiating patch (110) and the second radiating patch (120).
[0047] The first radiating patch (110), the second radiating patch (120), and the first radiating patch (110) and the second radiating patch (120) are formed on the same plane to form a filter according to the separation space (130), which can be called a hybrid mode patch.
[0048] The lower portion of the first radiating patch (110) may include a third radiating patch (140) having a rectangular shape and spaced apart from the first radiating patch (110). As shown in FIGS. 2 and 3, the first radiating patch (110) and the third radiating patch (140) are spaced apart from each other, and when the third radiating patch (140) is driven, the first radiating patch (110) is also driven accordingly. The third radiating patch (140) may be a high-bandwidth (HB) driven patch, and the first radiating patch (110) may be a high-bandwidth (HB) stack patch that forms a stack structure with the third radiating patch (140).
[0049] The first radiating patch (110) and the third radiating patch (140) are formed in a rectangular shape, and the first radiating patch (110) and the third radiating patch (140) can be arranged so that there is a 45 degree difference between them. As shown in FIG. 3, the first radiating patch (110) can be arranged so as to be rotated 45 degrees relative to the third radiating patch (140). The second radiating patch (120) can also be arranged so as to be rotated 45 degrees relative to the third radiating patch (140). At this time, the angular difference between the first radiating patch (110) and the third radiating patch (140) can mean the angle formed by one side of the first radiating patch (110) and one side of the third radiating patch (140). Meanwhile, although the first radiating patch (110) and the third radiating patch (140) are arranged with a 45-degree difference in relation to FIG. 3, the present disclosure is not limited thereto. For example, the first radiating patch (110) and the third radiating patch (140) may be arranged with an acute or right angle difference. Furthermore, depending on the embodiment, the first radiating patch (110) and the third radiating patch (140) may be arranged with the same angle.
[0050] The third radiating patch (140) may be formed in a rectangular shape or may include a recessed portion (141) in which each corner of the rectangular shape is recessed inward. The recessed portion (141) may be designed to have a shape in which the corners are recessed inward so as to have a frequency of a radiation signal to be radiated through the recessed portion (141). As shown in FIG. 4, the third radiating patch (140) may be formed in a rectangular shape in which the corners are formed in a curved shape and the patch extends from each of the four sides. The shape of the recessed portion (141) may be formed to correspond to the shape formed by the corners formed in a curved shape and the rectangle extending from the four sides.
[0051] The main radiating patch including the first radiating patch (110) and the second radiating patch (120) may include a plurality of main radiating patches, and two adjacent main radiating patches may be arranged in a rotated manner with respect to the center of the main radiating patch so that their edges face each other. In addition, the plurality of main radiating patches may be arranged spaced apart from each other in the horizontal direction.
[0052] The lower portion of the third radiating patch (140) may include a power supply pad (150) that is spaced apart from the lower portion of the third radiating patch (140). The power supply pad (150) may provide power to the third radiating patch (140). At this time, the power supply pad (150) may indirectly supply power to the third radiating patch (140). That is, the power supply pad (150) may not be electrically connected to the third radiating patch (140) but may supply power through coupling.
[0053] The feed pad (150) may have a tapered shape (153) in an area close to the center of the third radiating patch (140). The feed pad (150) may include two feed pads (151, 152) arranged at positions corresponding to the corners of the third radiating patch (140). The feed pad (150) may include two feed pads (151, 152) as shown in FIG. 5, and may be arranged at positions corresponding to the corners of the third radiating patch (140) as shown in FIG. 3. The two feed pads (151, 152) may extend in a direction toward the center of the third radiating patch (140), but may be arranged to be spaced apart from each other. It can be designed to have a frequency of a signal to be radiated from the third radiating patch (140) when power is supplied to the third radiating patch (140) by forming a tapered shape (153) in an area close to the center of the third radiating patch (140).
[0054] The power supply pad (150) includes a via shape as shown in Fig. 3 and can be electrically connected to the transmission line through a power supply portion connected downward. Current flows to the power supply pad (150) through the power supply portion (171, 172) connected to the transmission line, and power is supplied accordingly, and power can be supplied to the third radiating patch (140).
[0055] The third radiating patch (140) may be first coupled and powered through the power supply pad (150), and when the third radiating patch (140) is powered, the first radiating patch (110) may be secondarily coupled and powered through the third radiating patch (140). Alternatively, the third radiating patch (140) and the first radiating patch (110) may be simultaneously coupled and powered through the power supply pad (150).
[0056] The third radiating patch (140) and the first radiating patch (110) can radiate signals with dual polarization of H-pole and V-pole. Here, H means Horizontal, and V means Vertical. The two feed pads (151, 152) can include an H-pole feed pad and a V-pole feed pad, respectively. When fed with the H-pole feed pad, the third radiating patch (140) or the first radiating patch (110) can radiate signals with H-pole polarization, and when fed with the V-pole feed pad, the third radiating patch (140) or the first radiating patch (110) can radiate signals with V-pole polarization. In addition, when power is supplied by an H-pole power supply pad and a V-pole power supply pad, the third radiating patch (140) or the first radiating patch (110) can radiate a signal with H-pole and V-pole dual polarization.
[0057] The second radiating patch (120) can be directly connected to the feeding unit. Unlike the third radiating patch (140) or the first radiating patch (110) that are indirectly fed, the second radiating patch (120) can be directly fed to the feeding unit. The second radiating patch (120) can radiate a signal with dual polarization of H-pole and V-pole. At this time, the second radiating patch (120) can be fed through the H-pole feeding unit and the V-pole feeding unit. When fed through the H-pole feeding unit, the second radiating patch (120) can radiate a signal with H-pole polarization, and when fed through the V-pole feeding unit, the second radiating patch (120) can radiate a signal with V-pole polarization. In addition, when feeding with an H-pole feeder and a V-pole feeder, the second radiating patch (120) can radiate a signal with H-pole and V-pole dual polarization.
[0058] An antenna (100) according to an embodiment of the present invention may be composed of multiple layers. It may include multiple insulating layers, and a radiating patch or a feed patch may be arranged on each layer, and the interlayer connection may be electrically connected through a via. The radiating patch or the feed patch may be formed of a metal material or may be composed of another conductive material. As shown in FIG. 6, it may be composed of multiple layers including a first radiating patch (110), a second radiating patch (120), a third radiating patch (140), and a feed pad (150). The first radiating patch (110) and the second radiating patch (120) may be arranged as a single layer as the main radiating patch on the top layer. A stub (160) may be arranged on the next layer. Here, the stub (160) may be formed as shown in FIG. 7 and may be a parasitic stub. A third radiating patch (140) spaced apart from the first radiating patch (110) may be arranged on the next layer, and a feed pad (150) may be arranged on the next layer. The feed pad (150) may indirectly feed power to the third radiating patch (140) or the first radiating patch (110). The feed pad (150) may be connected to a transmission line through a feed section. Here, the feed pads (150) may each include an H-pole feed pad and a V-pole feed pad, and each feed pad may be connected to each feed section (171, 172). The second radiating patch (120) may be directly connected to an H-pole feed section (181) and a V-pole feed section (182) including vias. The first radiating patch (110) and the third radiating patch (140) can be connected to the ground through a central via (180) to improve isolation.
[0059] The isolation between signals radiated from the first radiating patch (110) and the second radiating patch (120) can be set according to the length and spacing of each component. It can be set by the spacing (a) between the first radiating patch (110) and the second radiating patch (120), the length (b) of one side of the first radiating patch (110), the length (c) of one side of the second radiating patch (120), the length (d) of one side of the third radiating patch (140), the length (e, f) of the feed pad (150), and the length (g, h) of the stub (160). The impedance and isolation of the low-band and high-band bands can be improved depending on the spacing (a) between the first radiating patch (110) and the second radiating patch (120), the impedance, bandwidth, and performance of the high-band band can be improved depending on the length (b) of one side of the first radiating patch (110), and the coupling with the first radiating patch (110) can be designed depending on the length (c) of one side of the second radiating patch (120).
[0060] Fig. 9 is a graph showing the isolation of the low-band and high-band bands, and it can be confirmed that the isolation is improved in the high-band band section. Fig. 10 is a graph showing the isolation between the H-pole and the V-pole of the high-band band, and it can be confirmed that the isolation between the H-pole and the V-pole is also improved. Fig. 11 is an s-parameter of the high-band band, in which the light line is the initial value to which the hybrid structure of the present invention is not applied, and the bold line is the result value to which the hybrid structure of the present invention is applied, and it can be confirmed that the signal performance is improved in the high-band band. Fig. 12 is an s-parameter of the low-band band, in which the light line is the initial value to which the hybrid structure of the present invention is not applied, and the bold line is the result value to which the hybrid structure of the present invention is applied, and it can be confirmed that the signal performance is improved in the low-band as well.
[0061] Fig. 13 illustrates a signal according to an embodiment of the present invention. For example, when a = 0.15, b = 1.44, c = 2.44, d = 1.34, e = 0.58, f = 2.7, g = 2.3, h = 0.35 (mm), the signal is illustrated, and it can be confirmed that the isolation is improved in both the low-band band of 24.25 to 29.5 GHz and the high-band band of 37.0 to 43.5 GHz.
[0062] A mobile device, base station, or repeater according to an embodiment of the present invention may include an antenna (100) according to the embodiment of the present invention described above.
[0063] Figure 14 is a block diagram of a front-end module according to an embodiment of the present invention.
[0064] The front-end module (500) according to the embodiment of the present invention illustrated in FIG. 14 may include an antenna device (510), first and second amplifiers (520, 540), a multilayer filter (530), and a switch (550).
[0065] The first amplifier (520) can amplify a signal received through the antenna device (510) and output the amplified result to a multilayer filter (530). Here, the first amplifier (520) can include a low noise amplifier (LNA).
[0066] The multilayer filter (530) can filter the signal amplified by the first amplifier (520) and output it to the output terminal (OUT).
[0067] The second amplifier (540) amplifies a signal input through an input terminal (IN) and transmits the amplified result through an antenna (510). Here, the second amplifier (540) may include a power amplifier (PA).
[0068] A switch (550) may be placed between the input terminal of the first amplifier (520) and the output terminal of the second amplifier (540) and the antenna device (510), and may serve to select a signal path thereof.
[0069] Since the antenna device (510) may include an antenna (100) according to the above-described embodiment, or an antenna substrate including the antenna (100), a redundant description is omitted.
[0070] FIG. 14 is only one embodiment of a front-end module (500), and the antenna (100) according to the above-described embodiment is not limited to FIG. 14 and can be applied as an antenna of a front-end module having various configurations.
[0071] The antenna and front-end module according to the above-described embodiment can be applied to modules for mobile devices, base stations, repeaters, automobiles, etc. to enable short-range or medium-range ultra-high-speed broadband communication of mobile devices and mobility devices, but the embodiment is not limited to a specific application example.
[0072] As described above, the present invention has been described with specific details such as specific components and limited examples and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above examples, and those with ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from this description.
[0073] Therefore, the idea of the present invention should not be limited to the described embodiments, and all things that are equivalent or equivalent to the following claims as well as the claims are considered to fall within the scope of the idea of the present invention.
Claims
1. A first radiating patch in the shape of a square; and A second radiating patch is included in which a hole corresponding to the shape of the first radiating patch is formed inside, An antenna in which the first radiating patch is placed in the hole of the second radiating patch.
2. In paragraph 1, An antenna in which the first radiating patch and the second radiating patch are spaced apart from each other.
3. In paragraph 1, An antenna in which the first radiating patch and the second radiating patch are arranged on the same plane.
4. In paragraph 1, An antenna in which the area of the hole of the second radiating patch is larger than the area of the first radiating patch.
5. In paragraph 1, An antenna in which the frequency of the radiation signal of the first radiation patch and the frequency of the radiation signal of the second radiation patch are different.
6. In paragraph 1, An antenna in which the frequency of the radiation signal of the first radiation patch is higher than the frequency of the radiation signal of the second radiation patch.
7. In paragraph 1, It includes a third radiating patch in the shape of a square spaced apart from the lower portion of the first radiating patch, The above first radiation patch is, An antenna that is rotated 45 degrees relative to the third radiating patch.
8. In paragraph 7, An antenna including a feed pad spaced apart from and positioned below the third radiating patch.
9. In paragraph 8, The above power supply pad is, An antenna that indirectly supplies power to the third radiating patch.
10. In paragraph 8, The above power supply pad is, It includes two power supply pads positioned at positions corresponding to the corners of the third radiating patch, The above two feed pads are an antenna including an H-pole feed pad and a V-pole feed pad.
Citation Information
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