Antenna module and radio frequency device including the antenna module

Abstract

A radio frequency device includes a radio frequency integrated circuit chip and an antenna module arranged on the upper surface of the radio frequency integrated circuit chip. The antenna module includes: a first antenna patch, which is parallel to the radio frequency integrated circuit chip, the first antenna patch includes a first penetration point and a first power feeding point connected to a first power feeding line to transmit and receive a first radio frequency signal of a first frequency band; and a second antenna patch, which is arranged above the first antenna patch in parallel with the first antenna patch, the second antenna patch includes a second power feeding point, and the second power feeding point is connected to a second power feeding line that penetrates the first penetration point to transmit and receive a second radio frequency signal of a second frequency band. The first penetration point is formed in a first area of ​​the first antenna patch where the influence on the electric field generated by the first antenna patch through the first power feeding point is minimized. The antenna module disclosed in the present invention and the radio frequency device including the same can effectively transmit / receive data in a new radio environment.

Description

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS]

[0002] This application claims the priority of Korean Patent Application No. 10-2018-0127691 filed on October 24, 2018 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The apparatus, device and product according to the present disclosure relate to an antenna module for transmitting / receiving radio frequency (RF) signals and a radio frequency device including the antenna module. Background Art

[0004] An antenna used in wireless communication is a reversible device that may include a conductor. A signal may be transmitted when the conductor radiates electromagnetic waves and the signal may be guided when the electromagnetic waves reach the conductor. The conductor included in the antenna may have various shapes, and an antenna including a conductor of a suitable shape may be used depending on the application. For example, a patch antenna as a type of planar antenna may include a ground plate, a low loss dielectric on the ground plate, and a patch on the low loss dielectric, and the patch antenna is mainly used in mobile applications.

[0005] In addition, as communication systems develop, broadband data communication services (e.g., fifth generation (5G) services) using millimeter waves can be provided to users in a new radio (NR) environment. Therefore, research has been conducted on the structure of antennas that can effectively transmit / receive millimeter waves to support broadband data communication services. Summary of the invention

[0006] An aspect of the present invention provides an antenna module capable of effectively transmitting / receiving data in a new radio (NR) environment and a radio frequency (RF) device including the same.

[0007] According to one aspect of an embodiment, a radio frequency (RF) device is provided, the RF device comprising a radio frequency integrated circuit (RFIC) chip and an antenna module arranged on the upper surface of the RFIC chip, wherein the antenna module comprises: a first antenna patch, parallel to the RFIC chip, the first antenna patch comprising a first penetration point and a first power feeding point, the first power feeding point being connected to a first power feeding line to transmit and receive a first RF signal of a first frequency band; and a second antenna patch, arranged above the first antenna patch in parallel with the first antenna patch, the second antenna patch comprising a second power feeding point, the second power feeding point being connected to a second power feeding line penetrating through the first penetration point to transmit and receive a second RF signal of a second frequency band, wherein the first penetration point is formed in a first area of ​​the first antenna patch where the influence on the electric field generated by the first antenna patch through the first power feeding point is minimized.

[0008] According to another aspect of the embodiment, an antenna module is provided, which includes: a ground plate; a first antenna patch, which is arranged above the ground plate to be parallel to the ground plate and includes a first penetration point and a first power feeding point, the first power feeding point is connected to a first power feeding line to radiate a first electromagnetic wave corresponding to a first frequency band; a second antenna patch, which is arranged above the first antenna patch to be parallel to the first antenna patch and includes a second power feeding point, the second power feeding point is connected to a second power feeding line that penetrates the first penetration point; and a third antenna patch, which is arranged above the second antenna patch to be parallel to the second antenna patch, wherein the second antenna patch and the third antenna patch are configured to radiate a second electromagnetic wave corresponding to a second frequency band.

[0009] According to another aspect of the embodiment, there is provided an antenna module, the antenna module comprising: a first circular antenna patch including a first penetration point, a second penetration point, a first power feeding point connected to a first power feeding line, and a second power feeding point connected to a second power feeding line, the first circular antenna patch being configured to radiate a first electromagnetic wave corresponding to a first frequency band; a second circular antenna patch being arranged above the first circular antenna patch in parallel with the first circular antenna patch and including a third power feeding point and a fourth power feeding point, the third power feeding point being connected to a third power feeding line passing through the first penetration point, the fourth power feeding point being connected to a fourth power feeding line passing through the second penetration point; and a third circular antenna patch being arranged above the second circular antenna patch in parallel with the second circular antenna patch, wherein the second circular antenna patch and the third circular antenna patch are configured to radiate a second electromagnetic wave corresponding to a second frequency band, and the first penetration point and the second penetration point are formed in a central region of the first circular antenna patch where an influence on an electric field generated by the first circular antenna patch is reduced.

[0010] According to another aspect of the embodiment, a device is provided, comprising: a radio frequency integrated circuit (RFIC) chip; and an antenna module, arranged on the upper surface of the radio frequency integrated circuit chip, the antenna module comprising: a first antenna patch, comprising a first power feeding point and a first penetration point, the first power feeding point being connected to a first power feeding line to transmit and receive a first millimeter-wave signal of a first frequency band, the first penetration point being formed at a portion of the weakest electric field generated by the first antenna patch; and a second antenna patch, arranged above the first antenna patch and parallel to the first antenna patch, the second antenna patch comprising a second power feeding point, the second power feeding point being connected to a second power feeding line to transmit and receive a second millimeter-wave signal of a second frequency band, the second power feeding line penetrating through the first penetration point. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The embodiments will be more clearly understood by reading the following detailed description in conjunction with the accompanying drawings, in which:

[0012] Figure 1 is a block diagram of a communication device according to an embodiment.

[0013] Figure 2A to Figure 2C is a diagram showing a method according to an embodiment of the present invention. Figure 1 A diagram showing an example of a layout of components in a communication device.

[0014] Figure 3A and Figure 3Bis a perspective view of an antenna module according to an embodiment.

[0015] Figure 4 According to an embodiment, Figure 3A A side view of a radio frequency (RF) system of the antenna module is shown, wherein the RF system is viewed in the Y-axis direction.

[0016] Figure 5A and Figure 5B It is shown that there is Figure 4 A diagram of area PA showing the penetration point.

[0017] Figure 6 It shows that according to Figure 4 A graph showing the relationship between the S parameter and the frequency depending on the radius of the first antenna patch is shown.

[0018] Figure 7 It shows that according to Figure 4 Shown is a graph of the relationship between the S parameter and the frequency depending on the radius of the second antenna patch.

[0019] Figure 8 It shows that according to Figure 4 A graph showing the relationship between the S parameter and the frequency depending on the length of the second power feeding line of the second antenna patch is shown.

[0020] Fig. 9 It shows that Figure 4 Graph of the frequency bands in which the antenna module operates.

[0021] Fig.10 is a side view of a radio frequency system including an antenna module according to an embodiment, wherein the radio frequency system is viewed in the Y-axis direction.

[0022] Fig.11A and Fig. 11B It shows that Fig.10 A graph showing the frequency bands in which the antenna module operates.

[0023] Fig.12 is a perspective view of an antenna module according to an embodiment.

[0024] Fig.13A According to the embodiment, the Y-axis direction includes Fig.12 A side view of the radio frequency system of the antenna module shown, and Fig. 13B yes Fig.13A A perspective view of the antenna module is shown.

[0025] FIG. 14A to FIG. 14C It is shown that there is Fig.13A A diagram of the area of ​​the penetration point shown.

[0026] Fig.15 It is shown Fig.13A A diagram showing an example of a first horizontal power feeding line and a second horizontal power feeding line.

[0027] Fig.16 is a block diagram of an antenna and a radio frequency integrated circuit (RFIC) according to an embodiment.

[0028] Fig.17 is a block diagram of an RFIC according to an embodiment.

[0029] Fig.18 is a diagram of an antenna module according to an embodiment.

[0030] Fig.19 is a diagram showing an example of a communication device including an antenna according to the embodiment. DETAILED DESCRIPTION

[0031] Hereinafter, embodiments will be explained in detail with reference to the accompanying drawings.

[0032] Figure 1 is a block diagram of a communication device according to an embodiment.

[0033] like Figure 1 As shown, the communication device 10 may include an antenna 100 and may communicate with another communication device in a wireless communication system by transmitting / receiving signals via the antenna 100, and the communication device 10 may be referred to as a wireless communication device.

[0034] The wireless communication system in which the communication device 10 communicates with the corresponding communication device may be: a wireless communication system using a cellular network, such as a next generation communication system, a fifth generation (5G) wireless system, a long term evolution (LTE) system, an LTE-Advanced system, a code division multiple access (CDMA) system, a global system for mobile communication (GSM) system, etc.; a wireless local area network (WLAN) system; or another arbitrary wireless communication system. In the following, the wireless communication system will be described based on a wireless communication system using a cellular network, but one or more embodiments are not limited thereto.

[0035] like Figure 1As shown, the communication device 10 may include an antenna 100, a radio frequency integrated circuit (RFIC) 200, and a signal processor 300, and the antenna 100 and the RFIC 200 may be connected to each other via a power feeding line 15. In the current specification, the antenna 100 may be referred to as an antenna module, and the structure including the antenna 100 and the power feeding line 15 may be generally referred to as an antenna module. In addition, the antenna 100, the power feeding line 15, and the RFIC 200 may be generally referred to as a radio frequency system or a radio frequency device.

[0036] The RFIC 200 may provide a signal to the antenna 100 via the power feeding line 15 (wherein the signal is generated by processing the transmission signal TX from the signal processor 300 in the transmission mode) and may provide the signal processor 300 with a reception signal RX by processing the signal transmitted from the antenna 100 via the power feeding line 15 in the reception mode. For example, the RFIC 200 may include a transmitter, which may include a filter, a mixer, and a power amplifier (PA). In addition, the RFIC 200 may include a receiver, which may include a filter, a mixer, and a low-noise amplifier (LNA). In some embodiments, the RFIC 200 may include a plurality of transmitters and a plurality of receivers, or may include a transceiver in which a transmitter and a receiver are combined. In some embodiments, the RFIC 200 may include a plurality of transceivers.

[0037] The signal processor 300 can generate a transmission signal TX by processing a signal containing information to be transmitted and can generate a signal containing information by processing a received signal RX. For example, the signal processor 300 may include an encoder, a modulator, and a digital-to-analog converter (DAC) to generate a transmission signal TX. In addition, the signal processor 300 may include an analog-to-digital converter (ADC), a demodulator, and a decoder to process the received signal RX. The signal processor 300 may generate a control signal to control the RFIC 200. The signal processor 300 may set a transmission mode or a reception mode, or adjust the power and gain of the elements included in the RFIC 200 by a control signal. In some embodiments, the signal processor 300 may include one or more cores and a memory storing instructions executed by the one or more cores, and at least a portion of the signal processor 300 may include a software block stored in the memory. In some embodiments, the signal processor 300 may include a logic circuit designed by logic synthesis, and at least a portion of the signal processor 300 may include a hardware block implemented as the logic circuit.

[0038] The wireless communication system can adjust the high spectrum band for large data transmission volume. For example, the 5G cellular system (or 5G wireless system) officially designated as IMT-2020 by the International Telecommunication Union (ITU) adjusts the millimeter wave (millimeter wave, mmWave) of 24 GHz or greater. The antenna 100 according to the embodiment can be configured to transmit / receive signals in the radio frequency band used in the data transmission of the millimeter wave (or radiate electromagnetic waves in the radio frequency band), and in addition, the antenna 100 can be configured to transmit / receive signals in a low frequency band relatively low compared to the radio frequency band (or radiate electromagnetic waves in the low frequency band). The antenna 100 may be a multi-band antenna capable of supporting radio frequency signal transmission / reception in at least two frequency bands. In addition, in addition to the support of multiple frequency bands, the antenna 100 may also be configured to implement multi-polarized radiation of electromagnetic waves.

[0039] According to an embodiment, the antenna 100 may include at least two antenna patches. The antenna patches may be stacked in parallel with each other, and each of the antenna patches may be configured to transmit / receive signals from different frequency bands. Each of the antenna patches may include at least one power feeding point to radiate electromagnetic waves, and the signal is supplied from the power feeding line to the at least one power feeding point. Between the antenna patches, the first antenna patch may also include at least one penetration point, and the power feeding line connected to the power feeding point of the second antenna patch located above the first antenna patch may penetrate through the penetration point. The penetration point of the first antenna patch may be formed in a region where the influence on the electric field generated from the power feeding point of the first antenna patch can be reduced. A detailed example of the antenna 100 will be described later.

[0040] The antenna 100 according to the embodiment can be implemented as a small-sized antenna module through an efficient arrangement structure, and can support multi-polarization and multi-band at the same time.

[0041] Figure 2A to Figure 2C is a diagram showing a method according to an embodiment of the present invention. Figure 1 FIG. 1 is a diagram showing an example of a layout of components in the communication device 10. Figure 1 Explanation Figure 2A to Figure 2C , and the referenced Figure 2A to Figure 2C Description given. In the current specification, the X-axis direction and the Y-axis direction perpendicular to each other may be referred to as the first horizontal direction and the second horizontal direction, respectively, and the plane including the X-axis and the Y-axis may be referred to as the horizontal plane. In addition, the area may represent the area of ​​the surface parallel to the horizontal plane, and the direction perpendicular to the horizontal plane (i.e., the Z-axis direction) may be referred to as the vertical direction. An element disposed in the +Z-axis direction compared to another element may be regarded as being located on the other element, and an element disposed in the -Z-axis direction compared to another element may be regarded as being located below the other element. In addition, among the surfaces of the element, the surface in the +Z-axis direction may be referred to as the upper surface of the element and the surface in the -Z-axis direction may be referred to as the lower surface of the element.

[0042] Since most of the loss parameters may be degraded in high frequency bands (e.g., millimeter wave bands), the layout of the antenna 100 and the RFIC 200 used in low frequency bands (e.g., 6 GHz or less) may not be used in millimeter wave bands. For example, the antenna power feeding structure used in the low frequency band may significantly reduce the attenuation characteristic of the signal in the millimeter wave band and the effective isotropic radiated power (EIRP) and the noise figure may be degraded overall. Therefore, in order to reduce the loss caused by Figure 1The antenna 100 and the RFIC 200 may be arranged close to each other to reduce the signal attenuation caused by the power feeding line 15 shown. In particular, high spatial efficiency may be required in mobile applications (such as mobile phones), and therefore, as shown in FIG. Figure 2C As shown, a system-in-package (SiP) structure may be adopted in which the antenna 100 is provided on the RFIC 200. Hereinafter, an example in which the RFIC 200 is implemented as an RFIC chip 200a, 200b, or 200c will be described below.

[0043] Reference Figure 2A , the communication device 10a may include a radio frequency system 20a, a digital integrated circuit 13a and a carrier board 500a, and the radio frequency system 20a and the digital integrated circuit 13a may be mounted on the upper surface of the carrier board 500a. The radio frequency system 20a and the digital integrated circuit 13a may be connected together via a conductive pattern formed on the carrier board 500a to communicate with each other. In some embodiments, the carrier board 500a may include a printed circuit board (PCB). The digital integrated circuit 13a may include Figure 1 The signal processor 300 shown, and therefore the digital integrated circuit 13a, can transmit a transmission signal TX to the RFIC chip 200a or can receive a reception signal RX from the RFIC chip 200a and can provide a control signal for controlling the RFIC chip 200a. In some embodiments, the digital integrated circuit 13a may include one or more cores and / or memories and can control the operation of the communication device 10a.

[0044] The RF system 20a may include an antenna module 100a and an RFIC chip 200a. The antenna module 100a may be referred to as an antenna package, and may be Figure 2A As shown, the antenna module 100a may include a substrate 120a and a conductor 110a formed on the substrate 120a.

[0045] For example, the antenna module 100a may include a ground plane parallel to a horizontal plane and a plurality of antenna patches, as will be described later with reference to Figure 3A , Figure 3B and Figure 4The antenna module 100a and the RFIC chip 200a may be connected to each other via a controlled collapse chip connection (C4). Figure 2A The illustrated radio frequency system 20a may easily dissipate heat and may have a stable structure.

[0046] However, one or more embodiments are not limited to Figure 2A The configuration of the antenna module 100a is shown, that is, the antenna module 100a may include a plurality of substrates, and the antenna patch may be formed in a metal layer disposed in a substrate of the antenna module 100a.

[0047] Reference Figure 2B The communication device 10b may include an RFIC chip 200b, a digital integrated circuit 13b, and a carrier board 500b, and the RFIC chip 200b and the digital integrated circuit 13b may be mounted on the lower surface of the carrier board 500b. The RFIC chip 200b and the digital integrated circuit 13b may be connected together via a conductive pattern formed on the carrier board 500b to communicate with each other.

[0048] exist Figure 2B In the communication device 10b shown in FIG. 1 , the radio frequency system 20b may include an antenna module 100b formed on a carrier board 500b and an RFIC chip 200b mounted on the lower surface of the carrier board 500b. Figure 2B As shown, the antenna module 100b may include a conductor 110b located on a carrier board 500b and a power feed line located on the carrier board 500b, through which a signal is supplied from the RFIC chip 200b. Figure 2B The RF system 20b shown may omit the process of mounting the RF system 20b on the carrier board 500b, and since the substrate of the antenna is omitted, a reduced height (ie, a reduced length in the Z-axis direction) may be obtained.

[0049] Reference Figure 2C The communication device 10c may include a radio frequency system 20c, a carrier board 400 and a digital integrated circuit 13c. Figure 2C As shown, the digital integrated circuit 13 c may be mounted on the lower surface of the carrier board 400 , and the RF system 20 c and the carrier board 400 may be connected together via a jumper 17 to communicate with each other.

[0050] exist Figure 2CIn the communication device 10c shown in FIG. 1 , the radio frequency system 20c may include an antenna module 100c and an RFIC chip 200c mounted on the lower surface of the antenna module 100c. Figure 2C As shown, the antenna module 100c may include an antenna board 120c, a conductor 110c formed on the antenna board 120c, and a power feeding line located on the antenna board 120c, and a signal is supplied from the RFIC chip 200c via the power feeding line. Figure 2C In the illustrated radio frequency system 20c, the substrate of the antenna may be omitted, and the radio frequency system 20c and the carrier board 400 may be manufactured independently of each other, so that the communication device 10c may have excellent productivity.

[0051] Will be based on Figure 2A The RF system 20a shown in the figure is used to illustrate one or more embodiments, but the following description is applicable to a RF system having any structure (for example, a system-on-chip (SoC) structure) including an antenna module and an RFIC, and Figure 2B and Figure 2C Example shown.

[0052] Figure 3A and Figure 3B 3 and 4 are perspective views of antenna modules 30 and 30 ′ according to embodiments, respectively. Figure 3A and Figure 3B The antenna modules 30 and 30 ′ are shown as examples of antenna patches including a 3-stack structure and only some elements of the antenna modules 30 and 30 ′ are shown for ease of explanation.

[0053] Reference Figure 3A , the antenna module 30 may include a first antenna patch 31, a second antenna patch 32a, and a third antenna patch 32b that are arranged in parallel and spaced apart from each other in the Z-axis direction. The first antenna patch 31 may transmit / receive a radio frequency signal of a first frequency band, and the second antenna patch 32a and the third antenna patch 32b may transmit / receive a radio frequency signal of a second frequency band. For example, the first frequency band may represent a low frequency band and the second frequency band may represent a radio frequency band. The first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may include a conductive material (e.g., metal) and may have a circular shape, respectively.

[0054] The radius of each of the first antenna patch 31, the second antenna patch 32a and the third antenna patch 32b, the spacing between the first antenna patch 31, the second antenna patch 32a and the third antenna patch 32b, and the dielectric constant between the first antenna patch 31, the second antenna patch 32a and the third antenna patch 32b can be variable according to the position on the frequency axis in the first frequency band where the first antenna patch 31 operates and the position on the frequency axis in the second frequency band where the second antenna patch 32a and the third antenna patch 32b operate.

[0055] According to an embodiment, the antenna module 30 may support radio frequency signal transmission / reception in two of a plurality of frequency bands for millimeter wave data communication specified by the 3rd generation partnership project (3GPP), which defines the standard of the 5G (new radio (NR)) system. Here, the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may have different radii from each other, for example, the radius may decrease in the order of the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b. That is, as Figure 3A As shown, the first radius of the first antenna patch 31 may be greater than the second radius of the second antenna patch 32a, and the second radius of the second antenna patch 32a may be greater than the third radius of the third antenna patch 32b. In addition, the dielectric constant between the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be constant (for example, the dielectric constant between the first antenna patch 31 and the second antenna patch 32a may be the same as the dielectric constant between the second antenna patch 32a and the third antenna patch 32b), and the intervals between the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be equal to each other. However, one or more embodiments are not limited thereto, and the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be configured in various ways according to the multiple frequency bands supported by the antenna module 30. The third antenna patch 32b may be omitted in some embodiments and will be referred to later. Fig.10 etc. describe examples of specific embodiments in which the third antenna patch 32b is omitted.

[0056] The antenna module 30 may include a first port PT1 connected to the first antenna patch 31 and a second port PT2 connected to the second antenna patch 32a. The first port PT1 and the second port PT2 may include power feeding lines for supplying signals to the first antenna patch 31 and the second antenna patch 32a, respectively. In some embodiments, the first antenna patch 31 may receive a signal from a power feeding point of the first antenna patch 31 via the first port PT1 and be excited by the signal to radiate electromagnetic waves corresponding to the first frequency band. The second antenna patch 32a may receive a signal supplied from a power feeding point of the second antenna patch 32a via the second port PT2 and be excited by the signal to radiate electromagnetic waves corresponding to the second frequency band. In addition, the third antenna patch 32b may be coupled to the excited second antenna patch 32a to radiate electromagnetic waves corresponding to the second frequency band.

[0057] In some embodiments, the power feeding line of the second port PT2 may penetrate through the first antenna patch 31 to connect to the power feeding point of the second antenna patch 32a. The point of the first antenna patch 31 penetrated by the power feeding line of the second port PT2 may be defined as a penetration point that may be formed within a region of the first antenna patch 31, wherein the region may reduce the influence on the radiation of the electromagnetic wave corresponding to the first frequency band from the first antenna patch 31.

[0058] Reference Figure 3B The antenna module 30' may include a first antenna patch 31', a second antenna patch 32a' and a third antenna patch 32b' which are arranged in parallel and spaced apart from each other in the Z-axis direction, and Figure 3A In contrast, the first antenna patch 31', the second antenna patch 32a' and the third antenna patch 32b' may each have a rectangular shape including two pairs of sides parallel to each other. The antenna module 30' may also include a first port PT1' connected to the first antenna patch 31' and a second port PT2' connected to the second antenna patch 32a'.

[0059] The width W and length L of each of the first antenna patch 31', the second antenna patch 32a' and the third antenna patch 32b', the intervals between the first antenna patch 31', the second antenna patch 32a' and the third antenna patch 32b', and the dielectric constant between the first antenna patch 31', the second antenna patch 32a' and the third antenna patch 32b' may be variable according to the position on the frequency axis in the first frequency band where the first antenna patch 31' operates and the position on the frequency axis in the second frequency band where the second antenna patch 32a' and the third antenna patch 32b' operate. Figure 3A The configurations of the first antenna patch 31', the second antenna patch 32a', and the third antenna patch 32b' are described, and therefore will not be described in detail. However, one or more embodiments are not limited to Figure 3A and Figure 3B The first antenna patch 31, 31', the second antenna patch 32a, 32a' and the third antenna patch 32b, 32b' are examples shown, and the antenna patch for supporting multiple frequency bands can be implemented in various shapes. Figure 3A The configuration of antenna module 30 is illustrated as an example, but one or more embodiments are not limited thereto.

[0060] Figure 4 According to an embodiment, Figure 3A A side view of a radio frequency (RF) system of the antenna module 30 is shown, wherein the RF system is viewed in the Y-axis direction. Figure 4 Only some of the elements included in the antenna module 30 are shown. Hereinafter, the power feeding lines 35a, 35b, and 35c may be collectively referred to as the second power feeding line 35. The antenna module 30 may include a first antenna patch 31, a second antenna patch 32a, a ground plate 33, a first power feeding line 34, and a second power feeding line 35.

[0061] Reference Figure 3A and Figure 4 , the RFIC 200 may be mounted on the lower surface of the antenna module 30. The first port PT1 may include a first power feeding line 34 and the second port PT2 may include a second power feeding line 35. The first power feeding line 34 and the second power feeding line 35 may penetrate the ground plate 33. The RFIC 200 provides a signal to the first power feeding point FP1 of the first antenna patch 31 via the first power feeding line 34 of the first port PT1 and provides a signal to the second power feeding point FP2 of the second antenna patch 32a via the second power feeding line 35 of the second port PT2. The position of the first power feeding point FP1 of the first antenna patch 31 and the position of the second power feeding point FP2 of the second antenna patch 32a may be determined by impedance matching.

[0062] As described above, the first antenna patch 31 can radiate electromagnetic waves to transmit / receive RF signals of a first frequency band, and the second antenna patch 32a and the third antenna patch 32b can radiate electromagnetic waves to transmit / receive RF signals of a second frequency band.

[0063] In some embodiments, the second power feeding line 35 may be connected to the second antenna patch 32a after penetrating the first antenna patch 31 to implement minimization of the antenna module 30, thereby being suitable for millimeter wave data communication. To achieve the above connection configuration, the first antenna patch 31 may include a penetration point VP within the area PA. The area PA may be predetermined. The area PA may be defined as an area that may have the least effect on the electromagnetic waves radiated by the first antenna patch 31 based on the signal transmitted from the first power feeding point FP1, and the detailed description of the area PA will be referred to later. Figure 5A and Figure 5B supply.

[0064] The second power feeding line 35 may include a first vertical power feeding line 35a, a horizontal power feeding line 35b, and a second vertical power feeding line 35c, wherein the first vertical power feeding line 35a is vertically arranged to pass through the penetration point VP, the horizontal power feeding line 35b is horizontally arranged in a direction toward the second power feeding point FP2, and the second vertical power feeding line 35c is connected to the horizontal power feeding line 35b and is horizontally arranged to be connected to the second power feeding point FP2.

[0065] although Figure 4 Although not shown in detail in the figure, the antenna module 30 may also include a first substrate between the first antenna patch 31 and the second antenna patch 32a and a second substrate between the second antenna patch 32a and the third antenna patch 32b. As described above, the radius of each of the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b, the intervals D1 and D2 between the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b, and the dielectric constants of the first and second substrates between the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be variable according to the position on the frequency axis in the first frequency band where the first antenna patch 31 operates and the position on the frequency axis in the second frequency band where the second antenna patch 32a and the third antenna patch 32b operate.

[0066] like Figure 4 As shown, in some embodiments, the radius decreases in the order of the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b. In addition, the dielectric constants of the first substrate and the second substrate between the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be equal to each other, and the distances D1 and D2 between the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be equal to each other. However, one or more embodiments are not limited thereto, and the first antenna patch 31, the second antenna patch 32a, and the third antenna patch 32b may be configured in various ways according to the multiple frequency bands supported by the antenna module 30.

[0067] Figure 5A and Figure 5B It is shown that there is Figure 4 A diagram of the area PA showing the penetration point VP.

[0068] Reference Figure 5A , the first antenna patch 31 may include a first power feeding point FP1 adjacent to a line L intersecting a center C of the first antenna patch 31. The penetration point VP (see Figure 4 ) may be formed in an area PA (or a central area) including a boundary spaced a distance from the center C of the first antenna patch 31. Although not shown in the drawings, a second power feeding point may be formed in the second antenna patch 32a similarly to the first power feeding point FP1. Figure 5B It is shown Figure 5A A diagram of the first antenna patch 31 and the electric field formed by the first antenna patch 31 is shown. Figure 5B The shown electric field may be a portion of the electromagnetic wave radiated by the first antenna patch 31 .

[0069] Reference Figure 5B , by using a signal supplied from the first power feeding point FP1 of the first antenna patch 31, the first antenna patch 31 may generate an electric field based on an axis parallel to the X-axis, with opposite phases at opposite ends of the electric field. The electric field PA_F corresponding to the area PA of the first antenna patch 31 may have an intensity equal to or less than a reference value. The reference value may be predetermined. When the penetration point VP (see Figure 4 ) is formed in the area PA, passing through the penetration point VP (see Figure 4 ) of the second power feed line 35 (see Figure 4 ) on the electric field generated by the first antenna patch 31 can be reduced.

[0070] Figure 6 It shows that according to Figure 4 FIG. 1 is a graph showing the relationship between the S parameter (S11) and the frequency depending on the radius of the first antenna patch 31. Figure 7 It shows that according to Figure 4 FIG. 1 is a graph showing the relationship between the S parameter (S22) and the frequency depending on the radius of the second antenna patch 32a, and FIG. Figure 8 It shows that according to Figure 4 The graph of the relationship between the S parameter (S22) and the frequency depending on the length of the second power feeding line 35 of the second antenna patch 32a is shown. The S parameter represents the input reflection coefficient of the antenna patch, and the frequency band suitable for the operation of the antenna patch can be determined based on the S parameter.

[0071] Reference Figure 6 , when the first antenna patch 31 (see Figure 4) changes from the first length to the fifth length (a1 to e1), the S parameter S11 of the first antenna patch 31 may change. For example, when the first antenna patch 31 (see Figure 4 ) is the fifth length e1, the first antenna patch 31 is suitable for operating in the lowest frequency band, and when the radius is the first length a1, the first antenna patch 31 may be suitable for operating in the highest frequency band. As an example, when the first antenna patch 31 is determined according to the standard defined by 3GPP (see Figure 4 ) operates in the first frequency band, the first antenna patch 31 (see Figure 4 ) is determined so that the first antenna patch 31 can operate in the first frequency band.

[0072] Reference Figure 7 , when the second antenna patch 32a (see Figure 4 ) changes from the first length to the fourth length (a2 to d2), the S parameter S22 of the second antenna patch 32a may change. As an example, when the second antenna patch 32a is determined according to the standard defined by 3GPP (see Figure 4 ) when operating in the second frequency band, the second antenna patch 32a (see Figure 4 ) is determined so that the second antenna patch 32a can operate in the second frequency band.

[0073] Reference Figure 8 , when connected to the second antenna patch 32a (see Figure 4 ) of the second power feed line 35 (see Figure 4 ) is changed from the first length to the fifth length (a3 to e3), the S parameter S22 of the second antenna patch 32a can be changed. The second power feeding line 35 (see Figure 4 ) is used to determine the length of the second antenna patch 32a (see Figure 4 ) is changed thereafter, and thus the second power feed line 35 (see Figure 4 ) so that the second antenna patch 32a operates in the second frequency band with the highest performance (eg, with an excellent input reflection coefficient).

[0074] That is, the first antenna patch 31 (see Figure 4 ) of the radius, the length of the second antenna patch 32a (see Figure 4 ) and the length of the radius of the second power feed line 35 (see Figure 4 ) may be sized according to the antenna module 30 (see Figure 4 ) can be determined based on the frequency band that can be supported. Although not described herein, the third antenna patch 32b (see Figure 4 ) and the length of the radius of the third antenna patch 32b and the second antenna patch 32a (see Figure 4 ) to provide conditions for optimal coupling with the second antenna patch 32a.

[0075] Fig. 9 It shows that Figure 4 Graph of the frequency bands in which the antenna module operates.

[0076] Reference Fig. 9 , antenna module 30 (see Figure 4 ) can operate in a first frequency band Band1 between frequency B11 and frequency B12 and in a second frequency band Band2 between frequency B21 and frequency B22. That is, the antenna module 30 (see Figure 4 ) can transmit / receive a radio frequency signal of a first frequency band Band1 and can simultaneously transmit / receive a radio frequency signal of a second frequency band Band2. The first frequency band Band1 and the second frequency band Band2 may be included in the frequency band for millimeter wave data communication specified by 3GPP. In detail, the first line AT_L1 corresponds to the first antenna patch 31 (see Figure 4 ) characteristics, and the second line AT_L2 corresponds to the second antenna patch 32a (see Figure 4 ) and the characteristics of the third antenna patch 32b (see Figure 4 ) characteristics. The first antenna patch 31 (see Figure 4 ) can be configured to make the S parameter S11 equal to or less than the first reference value K in the first frequency band Band1, and the second antenna patch 32a and the third antenna patch 32b (see Figure 4 ) can be configured so that its S parameter S22 is equal to or less than the second parameter value K in the second frequency band Band2.

[0077] Fig.10 3 is a side view of a radio frequency system including an antenna module 30' according to an embodiment, wherein the radio frequency system is viewed in the Y-axis direction. Fig.10 Only some of the elements included in the antenna module 30 ′ are shown. Fig.10 The antenna module 30' shown has the Figure 4 The structure of the third antenna patch 32b of the antenna module 30 is shown. Hereinafter, the power feeding lines 35a', 35b', and 35c' may be collectively referred to as the second power feeding line 35'.

[0078] Reference Fig.10 The antenna module 30' may include a first antenna patch 31, a second antenna patch 32a, a ground plate 33, a first power feeding line 34' and a second power feeding line 35'. Figure 4The antenna module 30 shown is the same except that the third antenna patch 32b is omitted, and thus a detailed description of the same elements as those of the antenna module 30 will be omitted.

[0079] The first antenna patch 31 can radiate electromagnetic waves to transmit / receive radio frequency signals of a first frequency band, and the second antenna patch 32a can radiate electromagnetic waves to transmit / receive radio frequency signals of a second frequency band. Since the antenna module 30' does not include the third antenna patch 32b, the antenna module 30' can be smaller than Figure 4 Antenna module 30 is shown.

[0080] Fig.11A and Fig. 11B It shows that Fig.10 A graph of the frequency bands in which the antenna module 30' operates is shown.

[0081] Reference Fig.11A , antenna module 30 '(see Fig.10 ) can operate in a first frequency band Band1 between frequency B11 and frequency B12 and in a second frequency band Band2' between frequency B21' and frequency B22'. The second frequency band Band2' can be different from Fig. 9 That is, the antenna module 30 (see Figure 4 ) can transmit / receive a radio frequency signal of a first frequency band Band1 and can simultaneously transmit / receive a radio frequency signal of a second frequency band Band2'. The first frequency band Band1 and the second frequency band Band2' may be included in the frequency band for millimeter wave data communication specified by 3GPP. In detail, the first line AT_L1' corresponds to the first antenna patch 31 (see Fig.10 ) characteristics, and the second line AT_L2 'corresponds to the second antenna patch 32a (see Fig.10 ) characteristics. The first antenna patch 31 (see Fig.10 ) can be configured to make the S parameter S11 equal to or less than the first reference value K in the first frequency band Band1, and the second antenna patch 32a (see Fig.10 ) may be configured so that its S parameter S22 may be equal to or less than a third reference value K in the second frequency band Band2'.

[0082] Reference Fig. 11B , different from Fig.11A In the embodiment, the antenna module 30' (see Fig.10 ) can operate in the frequency band Band' between the frequency B1' and the frequency B2'. That is, the antenna module 30' (see Fig.10 ) can transmit / receive a radio frequency signal of a frequency band Band', the frequency band Band' can have a bandwidth equal to or greater than a reference width, and the antenna module 30' (see Fig.10) In millimeter wave data communication, signals having various spectrums can be transmitted / received. The reference width can be predetermined. The first antenna patch 31 (see Fig.10 ) and the second antenna patch 32a (see Fig.10 ) may be configured so that the S parameter S22" may be equal to or less than a fourth reference value K in the frequency band Band', and Fig.11A The first power supply line 34' and the second power supply line 35' (see Fig.10 ) The way of supplying signals to the antenna module 30' may be different from Fig. 11B The power is supplied to the antenna module 30' (see Fig.10 )The method of supplying signals.

[0083] Fig.12 is a perspective view of an antenna module according to an embodiment. Fig.12 The antenna module 40 is shown as an example of an antenna patch including a 3-stacked structure and only some elements of the antenna module 40 are shown for ease of explanation. Fig.12 The illustrated antenna module 40 may support dual-polarization radiation and may be referred to as a dual-fed patch antenna. Fig.12 The antenna module 40 is shown with Figure 4 The antenna module 30 shown in the figure may further include a third port PT3 and a fourth port PT4 and the details of the connection with the antenna module 30 will be omitted. Figure 4 The elements of the antenna module 30 are shown with reference to the accompanying drawings.

[0084] Reference Fig.12 The antenna module 40 may include a first antenna patch 41, a second antenna patch 42a, and a third antenna patch 42b that are arranged in parallel and spaced apart from each other in the Z-axis direction. The first antenna patch 41 may transmit / receive a radio frequency signal of a first frequency band, and the second antenna patch 42a and the third antenna patch 42b may transmit / receive a radio frequency signal of a second frequency band.

[0085] The antenna module 40 may include a first port PT1 and a third port PT3 connected to the first antenna patch 41 and a second port PT2 and a fourth port PT4 connected to the second antenna patch 42a to support dual polarization radiation. The first port PT1 and the third port PT3 may include a power feed line for supplying a signal to the first antenna patch 41, and the second port PT2 and the fourth port PT4 may include a power feed line for supplying a signal to the second antenna patch 42a. The first antenna patch 41 may provide dual polarization based on the first port PT1 and the third port PT3 spaced apart from each other in the X-axis direction, and the second antenna patch 42a may provide dual polarization based on the second port PT2 and the fourth port PT4 spaced apart from each other in the Y-axis direction. To achieve dual polarization, the first antenna patch 41 and the second antenna patch 42a may include two power feeding points, respectively. In addition, the first antenna patch 41 may include two penetration points, and the power feeding line connected to the second antenna patch 42a may pass through the two penetration points. However, one or more embodiments are not limited thereto, that is, the antenna module 40 may be configured to be applicable to a variety of power feeding types.

[0086] Fig.13A According to the embodiment, the Y-axis direction includes Fig.12 A side view of the radio frequency system of the antenna module shown, and Fig. 13B yes Fig.13A A perspective view of the antenna module shown. For ease of illustration, Fig.13A and Fig. 13B Only some of the elements included in the antenna module 40 are shown. Hereinafter, the power feed lines 45a_1, 45b_1, and 45c_1 may be collectively referred to as the second power feed line 45_1, and the power feed lines 45a_2, 45b_2, and 45c_2 may be collectively referred to as the fourth power feed line 45_2. The antenna module 40 may include a first antenna patch 41, a second antenna patch 42a, a ground plate 43, a first power feed line 44_1, a third power feed line 44_2, a second power feed line 45_1, and a fourth power feed line 45_2.

[0087] Reference Fig.12 and Fig.13A , the RFIC 200 may be mounted on the lower surface of the antenna module 40. The first port PT1 connected to the first antenna patch 41 includes a first power feed line 44_1, and the third port PT3 includes a third power feed line 44_2. The second port PT2 connected to the second antenna patch 42a includes a second power feed line 45_1, and the fourth port PT4 includes a fourth power feed line 45_2.

[0088] RFIC 200 can provide a first differential signal to the first power feeding point FP1 and the third power feeding point FP3 of the first antenna patch 41 via the first power feeding line 44_1 of the first port PT1 and the third power feeding line 44_2 of the third port PT3. The first differential signal may include a first signal provided to the first power feeding point FP1 and a second signal having a phase opposite to that of the first signal and provided to the third power feeding point FP3. The position of the first power feeding point FP1 of the first antenna patch 41 and the position of the third power feeding point FP3 can be determined by impedance matching. RFIC 200 can provide a second differential signal to the second power feeding point FP2 and the fourth power feeding point FP4 of the second antenna patch 42a via the second power feeding line 45_1 of the second port PT2 and the fourth power feeding line 45_2 of the fourth port PT4. The second differential signal may include a third signal provided to the second power feeding point FP2 and a fourth signal having a phase opposite to that of the third signal and provided to the fourth power feeding point FP4. The position of the second power feeding point FP2 and the position of the fourth power feeding point FP4 of the second antenna patch 42a may be determined by impedance matching.

[0089] In some embodiments, the second power feed line 45_1 and the fourth power feed line 45_2 may be connected to the second antenna patch 42a after penetrating the first antenna patch 41 to minimize the antenna module 40. To achieve the connection configuration, the first antenna patch 41 may include a first penetration point VP1 and a second penetration point VP2 in the area PA'. The area PA' may be predetermined. The second power feed line 45_1 may include a first vertical power feed line 45a_1, a first horizontal power feed line 45b_1, and a second vertical power feed line 45c_1, the first vertical power feed line 45a_1 being vertically formed to penetrate the first penetration point VP1, the first horizontal power feed line 45b_1 being connected to the first vertical power feed line 45a_1 and being horizontally formed toward the second power feed point FP2, and the second vertical power feed line 45c_1 being connected to the first horizontal power feed line 45b_1 and being vertically formed to be connected to the second power feed point FP2. The fourth power feeding line 45_2 may include a third vertical power feeding line 45a_2, a second horizontal power feeding line 45b_2, and a fourth vertical power feeding line 45c_2, the third vertical power feeding line 45a_2 being vertically formed to penetrate through the second penetration point VP2, the second horizontal power feeding line 45b_2 being connected to the third vertical power feeding line 45a_2 and being horizontally formed toward the fourth power feeding point FP4, and the fourth vertical power feeding line 45c_2 being connected to the second horizontal power feeding line 45b_2 and being vertically formed to be connected to the fourth power feeding point FP4.

[0090] According to the above structure, the first antenna patch 41 can radiate dual-polarized electromagnetic waves to transmit / receive RF signals of the first frequency band, and the second antenna patch 42a and the third antenna patch 42b can radiate dual-polarized electromagnetic waves to transmit / receive RF signals of the second frequency band.

[0091] Reference Fig. 13B In some embodiments, the first vertical power feed line 45a_1 and the third vertical power feed line 45a_2 may have the same length as each other, and the second vertical power feed line 45c_1 and the fourth vertical power feed line 45c_2 may have the same length as each other. An angle may be set between the first horizontal power feed line 45b_1 and the second horizontal power feed line 45b_2. The angle may be predetermined. The first horizontal power feed line 45b_1 and the second horizontal power feed line 45b_2 may be set at an angle of 90°. In other embodiments, the first vertical power feed line 45a_1 and the third vertical power feed line 45a_2 may have different lengths from each other, and the second vertical power feed line 45c_1 and the fourth vertical power feed line 45c_2 may have different lengths from each other. However, one or more embodiments are not limited thereto, that is, the second power feeding line 45_1 and the fourth power feeding line 45_2 may have various lengths according to the positions of the second power feeding point FP2 and the fourth power feeding point FP4 and the first penetration point VP1 and the second penetration point VP2.

[0092] FIG. 14A to FIG. 14C It is shown that there is Fig.13A A diagram showing the area of ​​the first penetration point VP1 and the second penetration point VP2.

[0093] Reference Fig.14A , the first antenna patch 41 may include a first power feeding point FP1 and a third power feeding point FP3, the first power feeding point FP1 being adjacent to a first line L1 intersecting the center C of the first antenna patch 41, and the third power feeding point FP3 being adjacent to a second line L2 perpendicular to the first line L1 and intersecting the center C of the first antenna patch 41. In addition, the first power feeding point FP1 and the third power feeding point FP3 may be formed in the first antenna patch to be spaced the same distance from the center C of the first antenna patch 41. Although not shown in the drawings, the second power feeding point and the fourth power feeding point may be formed in the second antenna patch similarly to the first power feeding point FP1 and the third power feeding point FP3.

[0094] Fig. 14B 1 shows the distribution of the intensity of the electric field generated by the first antenna patch 41 based on the signal supplied from the first power feeding point FP1 of the first antenna patch 41. Fig. 14B, in the first area A1 of the first antenna patch 41, the intensity of the electric field may be measured to be a reference value or less than the reference value. The reference value may be predetermined.

[0095] Fig. 14C 1 shows the distribution of the intensity of the electric field generated by the first antenna patch 41 based on the signal supplied from the third power feeding point FP3 of the first antenna patch 41. Fig. 14C , in the second area A2 of the first antenna patch 41, the intensity of the electric field may be measured to be a reference value or less than the reference value. The reference value may be predetermined. Considering the reduction of the influence on the electric field formed by the first antenna patch 41, the efficiency of the process of manufacturing the antenna module, etc., the first penetration point VP1 and the second penetration point VP2 may be formed in the area PA' which is a common area between the first area A1 and the second area A2.

[0096] Fig.15 It is shown Fig.13A A diagram showing an example of a first horizontal power feeding line 45b_1 and a second horizontal power feeding line 45b_2.

[0097] Reference Fig.15 , the first antenna patch 41 may include a first power feeding point FP1 and a third power feeding point FP3, the first power feeding point FP1 being adjacent to a first line L1 intersecting a center C of the first antenna patch 41, and the third power feeding point FP3 being adjacent to a second line L2 perpendicular to the first line L1 and intersecting a center C of the first antenna patch 41. In the central region of the first antenna patch 41, a first penetration point VP1 may be formed adjacent to the first line L1 and a second penetration point VP2 may be formed adjacent to the second line L2.

[0098] In some embodiments, the first horizontal power feeding line 45b_1 and the second horizontal power feeding line 45b_2 may be formed between the first antenna patch 41 and the second antenna patch 42a (see Fig.13A ), and the first angle between the direction in which the first horizontal power feeding line 45b_1 extends and the second line L2 may be equal to the second angle between the direction in which the second horizontal power feeding line 45b_2 extends and the first line L1. That is, Fig.15 The two angles shown may be equal. As the angle increases, the interval between the first penetration point VP1 and the second penetration point VP2 may increase.

[0099] Fig.16 is a block diagram of an antenna and an RFIC according to an embodiment. In detail, Fig.16 The antenna 100 ′ and the RFIC 200 ′ are shown. The antenna 100 ′ includes two antenna patches with dual feed, dual polarization and a 3-stack structure. The RFIC 200 ′ includes a first transceiver 221 to a fourth transceiver 224 .

[0100] RFIC 200' may be connected to antenna 100' via four power feed lines corresponding to the four ports of antenna 100'. Fig.13A and Fig. 13B As described, the antenna module including the antenna 100' and the power feeding line 15' may be disposed on the RFIC 200' and at least one connection may be formed on the upper surface of the RFIC 200' and the lower surface of the antenna module. The antenna 100' may receive a differential signal from the RFIC 200' via the four power feeding lines 15' respectively connected to the four power feeding points in the first antenna patch P1 and the second antenna patch P2. To this end, a pair of transceivers included in the RFIC 200' may generate one differential signal, and thus, the four transceivers 221 to 224 may generate two differential signals.

[0101] The switch / duplexer 220 may connect / disconnect the output terminals or input terminals of the four transceivers (i.e., the first to fourth transceivers 221 to 224) to / from the four power feeding lines 15' according to the transmission mode or the reception mode. Fig.16 In the configuration shown, in some embodiments, the first transceiver 221 and the second transceiver 222 can be connected to the first antenna patch P1 via the switch / duplexer 220 to use the first frequency band Band1 to implement signal transmission / reception, and the third transceiver 223 and the fourth transceiver 224 can be connected to the second antenna patch P2 and the third antenna patch P3 via the switch / duplexer 220 to use the second frequency band Band2 to implement signal transmission / reception.

[0102] Fig.17 2 is a block diagram of an RFIC 200 according to an embodiment. In detail, Fig.17 Show Fig.16 An example of a transceiver included in the RFIC 200' is shown. Fig.16 As stated, Fig.17 The first transceiver 221' and the second transceiver 222' shown can output differential signals, and the switch / duplexer 220' can transmit the differential signals to the power feeding line connected to the first antenna patch P1 or the second antenna patch P2 in the transmission mode. That is, the first transmission signal TX1 output from the first transceiver 221' and the second transmission signal TX2 output from the second transceiver 222' can be applied to two separate power feeding points in one antenna patch. In addition, the first reception signal RX1 received by the first transceiver 221' and the second reception signal RX2 received by the second transceiver 222' can be received from two separate power feeding points in the first antenna patch P1 or the second antenna patch P2.

[0103] Reference Fig.17 , the first transceiver 221' may include a power amplifier 221_1, a low-noise amplifier 221_3, and phase shifters 221_2 and 221_4. Similarly, the second transceiver 222' may include a power amplifier 222_1, a low-noise amplifier 222_3, and phase shifters 222_2 and 222_4. In the transmission mode, the power amplifiers 221_1 and 222_1 of the first transceiver 221' and the second transceiver 222' may output a first transmission signal TX1 and a second transmission signal TX2, respectively. In the reception mode, the low-noise amplifiers 221_3 and 222_3 of the first transceiver 221' and the second transceiver 222' may receive a first reception signal RX1 and a second reception signal RX2, respectively.

[0104] The phase shifters 221_2 and 221_4 of the first transceiver 221' may provide a phase difference of 180° with respect to each other, and the phase shifters 222_2 and 222_4 of the second transceiver 222' may provide a phase difference of 180° with respect to each other. For example, the phase shifter 221_2 for transmission of the first transceiver 221' may provide an output signal having a phase difference of 0° (zero) with respect to an input signal to the power amplifier 221_1, and the phase shifter 222_2 for transmission of the second transceiver 222' may provide an output signal having a phase difference of 180° with respect to an input signal, which is the same as the input signal provided to the phase shifter 221_2 for transmission of the first transceiver 221'. Therefore, the first transmission signal TX1 and the second transmission signal TX2 may have a phase difference of 180° and a differential signal may be configured. In addition, the phase shifter 221_4 for reception of the first transceiver 221' can output a signal having a phase difference of 0° (zero) relative to the output signal of the low noise amplifier 221_3, and the phase shifter 222_4 for reception of the second transceiver 222' can output a signal having a phase difference of 180° relative to the output signal of the low noise amplifier 222_3.

[0105] Fig.18 is a diagram of an antenna module 100″ according to an embodiment. As described above with reference to the drawings, the antenna module 100″ may include multi-band and multi-polarization antennas 111 to 114, which are respectively connected to a plurality of power feeding lines supplied with differential signals and respectively have a structure in which a plurality of antenna patches are stacked. Two differential signals may be applied to each of the multi-band and multi-polarization antennas 111 to 114 to achieve dual polarization.

[0106] Reference Fig.18In addition to the multi-band and multi-polarization antennas 111 to 114, the antenna module 100" may further include dipole antennas 121 to 124. As described above, by adding different types of antennas to the multi-band and multi-polarization antennas 111 to 114, the coverage range can be expanded. The multi-band and multi-polarization antennas 111 to 114 and Fig.18 The arrangement of dipole antennas 121 to 124 shown is an example, and it should be understood that the antennas may be arranged in any manner. Fig.18 The arrangements shown are arranged differently.

[0107] Fig.19 is a diagram showing an example of a communication device including an antenna according to an embodiment. Fig.19 An example is shown in which various wireless communication devices communicate with each other in a wireless communication system using WLAN. Fig.19 Each of the wireless communication devices shown may include a multi-band and multi-polarization antenna in which a plurality of antenna patches are stacked, and an RFIC that provides differential signals to the multi-band and multi-polarization antenna.

[0108] The home gadget 721, the home appliance 722, the entertainment device 723, and the access point (AP) 710 may constitute an Internet of Things (IoT) network system. Each of the home gadget 721, the home appliance 722, the entertainment device 723, and the AP 710 may include a transceiver according to one or more embodiments as a component. The home gadget 721, the home appliance 722, and the entertainment device 723 may wirelessly communicate with the AP 710, or may wirelessly communicate with each other.

[0109] While the inventive concepts have been particularly shown and described with reference to embodiments thereof, it will be understood that various changes in form and details may be made therein without departing from the spirit and scope of the following claims.

Claims

1. A radio frequency device, comprising: Radio frequency integrated circuit chips; as well as The antenna module is arranged on the upper surface of the radio frequency integrated circuit chip. The antenna module comprises: A first antenna patch, parallel to the RFIC chip, the first antenna patch comprising a first penetration point and a first power feeding point, the first power feeding point being connected to a first power feeding line to transmit and receive a first RF signal of a first frequency band; as well as a second antenna patch, arranged above the first antenna patch in parallel with the first antenna patch, the second antenna patch comprising a second power feeding point, the second power feeding point being connected to a second power feeding line penetrating through the first penetration point to transmit and receive a second radio frequency signal of a second frequency band, wherein the first penetration point is formed in a first area of ​​the first antenna patch in which the influence on the electric field generated by the first antenna patch through the first power feeding point is minimized, wherein the first antenna patch further includes a second penetration point and a third power feeding point connected to a third power feeding line for dual-polarized radiation, The second antenna patch further includes a fourth power feeding point connected to a fourth power feeding line penetrating through the second penetration point for dual-polarized radiation. the second power feeding line includes a first horizontal power feeding line formed in parallel with the first antenna patch to connect the first penetration point to the second power feeding point, the fourth power feeding line includes a second horizontal power feeding line formed in parallel with the first antenna patch to connect the second penetration point to the fourth power feeding point, a first angle between a second line intersecting the center of the first antenna patch and a first direction in which the first horizontal power feeding line extends is equal to a second angle between a first line intersecting the center of the first antenna patch and perpendicular to the second line and a second direction in which the second horizontal power feeding line extends, and As each of the first angle and the second angle increases, the interval between the first penetration point and the second penetration point increases. 2 . The radio frequency device of claim 1 , wherein the first antenna patch and the second antenna patch have a circular shape. 3 . The radio frequency device of claim 2 , wherein a first radius of the first antenna patch is different from a second radius of the second antenna patch. 4 . The radio frequency device of claim 1 , wherein the first antenna patch and the second antenna patch have a rectangular shape, each including two pairs of sides parallel to each other. 5 . The radio frequency device of claim 4 , wherein a first width of the first antenna patch is different from a second width of the second antenna patch, and a first length of the first antenna patch is different from a second length of the second antenna patch.

6. The radio frequency device according to claim 1, wherein the second power feed line comprises: a first vertical power feeding line formed vertically to pass through the first penetration point, wherein the first horizontal power feeding line is connected to the first vertical power feeding line and formed horizontally toward the second power feeding point; as well as A second vertical power feeding line is connected to the first horizontal power feeding line and is vertically formed to be connected to the second power feeding point.

7. The radio frequency device according to claim 1, wherein the antenna module comprises a third antenna patch arranged above the second antenna patch in parallel with the second antenna patch, and the third antenna patch is configured to transmit and receive the second radio frequency signal of the second frequency band by coupling to the second antenna patch. 8 . The radio frequency device of claim 7 , wherein the first antenna patch, the second antenna patch, and the third antenna patch have different radii from each other.

9. The radio frequency device according to claim 7, wherein the antenna module further comprises: a first substrate between the first antenna patch and the second antenna patch; as well as a second substrate, between the second antenna patch and the third antenna patch, The first dielectric constant of the first substrate is the same as the second dielectric constant of the second substrate. 10 . The radio frequency device of claim 7 , wherein a first interval between the first antenna patch and the second antenna patch is equal to a second interval between the second antenna patch and the third antenna patch.

11. The radio frequency device according to claim 1, wherein The first power feeding point and the third power feeding point are configured to receive a first differential signal from the RF integrated circuit chip to transmit and receive the first RF signal of the first frequency band via the first power feeding line and the third power feeding line, respectively.

12. The radio frequency device according to claim 11, wherein The second power feeding point and the fourth power feeding point are configured to receive a second differential signal from the RF integrated circuit chip to transmit and receive the second RF signal of the second frequency band via the second power feeding line and the fourth power feeding line, respectively. 13 . The radio frequency device according to claim 12 , wherein the second penetration point is formed in a second region of the first antenna patch where an influence on an electric field generated by the first antenna patch through the third power feeding point is minimized. 14 . The radio frequency device according to claim 13 , wherein the first region and the second region define a central region of the first antenna patch, and the first penetration point and the second penetration point are formed to be spaced apart from each other in the central region of the first antenna patch.

15. The radio frequency device according to claim 12, wherein the fourth power feed line comprises: a third vertical power feeding line formed vertically to pass through the second penetration point, wherein the second horizontal power feeding line is connected to the third vertical power feeding line and formed horizontally toward the fourth power feeding point; as well as A fourth vertical power feeding line is connected to the second horizontal power feeding line and is vertically formed to be connected to the fourth power feeding point. 16 . The radio frequency device according to claim 1 , wherein the radio frequency integrated circuit chip comprises a plurality of transceivers configured to transmit and receive the first radio frequency signal of the first frequency band and the second radio frequency signal of the second frequency band.

17. An antenna module, comprising: Ground plate; a first antenna patch disposed above the ground plate to be parallel to the ground plate and comprising a first penetration point and a first power feeding point connected to a first power feeding line to radiate a first electromagnetic wave corresponding to a first frequency band; a second antenna patch disposed above the first antenna patch in parallel with the first antenna patch and comprising a second power feeding point connected to a second power feeding line penetrating through the first penetration point; as well as A third antenna patch is arranged above the second antenna patch and parallel to the second antenna patch, wherein the second antenna patch and the third antenna patch are configured to radiate a second electromagnetic wave corresponding to a second frequency band, The first antenna patch further includes a second penetration point and a third power feeding point, wherein the third power feeding point is connected to a third power feeding line for dual-polarization radiation. The second antenna patch further includes a fourth power feeding point connected to a fourth power feeding line penetrating through the second penetration point for dual-polarized radiation. the second power feeding line includes a first horizontal power feeding line formed in parallel with the first antenna patch to connect the first penetration point to the second power feeding point, the fourth power feeding line includes a second horizontal power feeding line formed in parallel with the first antenna patch to connect the second penetration point to the fourth power feeding point, a first angle between a second line intersecting the center of the first antenna patch and a first direction in which the first horizontal power feeding line extends is equal to a second angle between a first line intersecting the center of the first antenna patch and perpendicular to the second line and a second direction in which the second horizontal power feeding line extends, and As each of the first angle and the second angle increases, the interval between the first penetration point and the second penetration point increases.

18. The antenna module of claim 17, wherein the first antenna patch, the second antenna patch, and the third antenna patch have a circular shape, and The first antenna patch has a first radius, the second antenna patch has a second radius, and the third antenna patch has a third radius, The first radius>the second radius>the third radius.

19. The antenna module of claim 17, wherein the first antenna patch has a first dielectric constant, the second antenna patch has a second dielectric constant, and the third antenna patch has a third dielectric constant, wherein the first dielectric constant, the second dielectric constant, and the third dielectric constant are the same.

20. The antenna module of claim 17, wherein a first distance between the first antenna patch and the second antenna patch is equal to a second distance between the second antenna patch and the third antenna patch.

21. The antenna module according to claim 17, wherein The second penetration point is formed in a region of the first antenna patch where an influence on an electric field generated by the first antenna patch through the second power feeding point is reduced.

22. The antenna module of claim 21 , wherein the first power feed point and the third power feed point are spaced apart by the same first distance relative to a first center of the first antenna patch, and The second power feed point is spaced apart from the fourth power feed point by a same second distance relative to a second center of the second antenna patch. 23 . The antenna module according to claim 17 , wherein the first direction in which the first horizontal power feeding line extends is perpendicular to the second direction in which the second horizontal power feeding line extends.

24. An antenna module, comprising: a first circular antenna patch including a first penetration point, a second penetration point, a first power feeding point connected to a first power feeding line, and a third power feeding point connected to a third power feeding line, the first circular antenna patch being configured to radiate a first electromagnetic wave corresponding to a first frequency band; a second circular antenna patch, arranged above the first circular antenna patch in parallel with the first circular antenna patch and comprising a second power feeding point and a fourth power feeding point, the second power feeding point being connected to a second power feeding line passing through the first penetration point, the fourth power feeding point being connected to a fourth power feeding line passing through the second penetration point; as well as A third circular antenna patch is arranged above the second circular antenna patch and parallel to the second circular antenna patch, wherein the second circular antenna patch and the third circular antenna patch are configured to radiate a second electromagnetic wave corresponding to a second frequency band, and The first penetration point and the second penetration point are formed in a central region of the first circular antenna patch where an influence on an electric field generated by the first circular antenna patch is reduced, wherein the third power feeding point is connected to the third power feeding line for dual polarization radiation, The fourth power feeding point is connected to the fourth power feeding line penetrating through the second penetration point to perform dual-polarization radiation, the second power feeding line includes a first horizontal power feeding line formed in parallel with the first circular antenna patch to connect the first penetration point to the second power feeding point, the fourth power feeding line includes a second horizontal power feeding line formed in parallel with the first circular antenna patch to connect the second penetration point to the fourth power feeding point, a first angle between a second line intersecting the center of the first circular antenna patch and a first direction in which the first horizontal power feeding line extends is equal to a second angle between a first line intersecting the center of the first circular antenna patch and perpendicular to the second line and a second direction in which the second horizontal power feeding line extends, and As each of the first angle and the second angle increases, the interval between the first penetration point and the second penetration point increases.

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