KR20240013013A - An antenna device equipped with a plurality of radiator arrays - Google Patents

Abstract

An antenna device having a plurality of radiator arrays is disclosed. The antenna device includes a first radiator array corresponding to a first frequency cluster, a second radiator array corresponding to a second frequency cluster, a control circuit that supplies a signal to at least one of the first radiator array and the second radiator array, and and a signal supply path connecting the control circuit and the first radiator array and the second radiator array.

Description

AN ANTENNA DEVICE EQUIPPED WITH A PLURALITY OF RADIATOR ARRAYS}

The present invention relates to wireless communication, and more specifically, to an antenna device having a plurality of radiator arrays, a stacked multi-band radiator module, and an optically transparent multi-band radiator module.

Wireless communication technology for transmitting and receiving information continues to develop. Among them, an antenna device is required to transmit or receive signals for wireless communication, and various types and methods of antenna devices have been developed to achieve higher performance. Recently, technologies have been developed to overcome performance limitations that are difficult to achieve with a single antenna, such as MIMO antennas, and beam forming technology to control the radiation direction of the signal to maximize the strength of the transmitted and received signals between the base station and the terminal. This was also developed.

In particular, recent wireless communication technologies, such as 3GPP 5G, have begun to use frequencies in the millimeter wave (mmWave) band, and the mmWave band wireless channel environment has the characteristics of free space path loss and diffraction reduction, leading to signal attenuation. In order to solve the problem that may occur, beam forming technology using phased array antennas is being applied more importantly. Such beam forming technology is required for both base stations and terminals, and is especially essential for securing wide coverage and overcoming propagation loss in a mobile wireless channel environment.

Meanwhile, the initial use of the millimeter wave band was made for specific frequency bands, such as the 28 GHz band, but attempts to utilize various frequency bands, such as the 52 GHz band, are gradually appearing. However, in order to perform beam forming, it is required to adjust the spacing between each radiator of the antenna array to match the frequency band of the signal to be radiated. For similar frequency bands, it is possible to take advantage of some loss even if the spacing between radiators does not exactly fit the frequency band being used, but if the difference in frequency bands is large, antenna arrays with spacing corresponding to specific frequencies can be used. There may be cases where beamforming for signals in other frequency bands is not possible. Therefore, there has been an attempt to provide antenna devices each including a radiator array corresponding to each frequency band in order to perform beamforming for signals in multiple frequency bands, but this increases the difficulty of spatial design for a wireless communication device and There is a disadvantage in terms of cost.

Korean Patent Publication No. 10-2011-0081389 (“Antenna device”, RF Tech Co., Ltd.)

One purpose of the present invention to solve the above-described problems is to provide a signal supply path between a plurality of radiator arrays and a control circuit each having different intervals corresponding to a plurality of frequency bands, thereby performing beam forming for multiple bands while reducing cost and The object is to provide an antenna device having a plurality of radiator arrays that can ensure spatial design efficiency.

Another object of the present invention to solve the above-described problem is to provide a signal supply path between a plurality of radiator arrays and a control circuit with different spacings corresponding to a plurality of frequency bands for the stacked radiator module, thereby forming beam forming for multiple bands. The aim is to provide a stacked multi-band radiator module that can secure cost and space design efficiency while performing .

Another object of the present invention to solve the above-described problem is to provide a signal supply path between a plurality of radiator arrays and a control circuit each having different spacings corresponding to a plurality of frequency bands for the optically transparent radiator module, thereby generating a beam for multiple bands. The aim is to provide a multi-band optically transparent emitter module that can secure cost and space design efficiency while performing forming.

However, the problem to be solved by the present invention is not limited to this, and may be expanded in various ways without departing from the spirit and scope of the present invention.

An antenna device having a plurality of radiator arrays according to an embodiment of the present invention includes: a first radiator array corresponding to a first frequency cluster; a second radiator array corresponding to a second frequency cluster; a control circuit that supplies a signal to at least one of the first radiator array and the second radiator array; and a signal supply path connecting the control circuit and the first radiator array and the second radiator array; may include.

According to one aspect, the first radiator array may include a plurality of radiators arranged at a first interval, and the second radiator array may include a plurality of radiators arranged at a second interval different from the first interval. You can.

According to one aspect, the first interval is an interval between radiators for performing beamforming on a signal of at least one frequency band among the frequency bands included in the first frequency cluster, and the second interval is the first interval. It may be a gap between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the two frequency cluster.

According to one aspect, the control circuit outputs at least one of a signal for the first radiator array and a signal for the second radiator array, and the signal supply path is configured to output the first radiator array output from the control circuit. It may be configured to supply a signal for the first radiator array, and to supply a signal for the second radiator array output from the control circuit to the second radiator array.

According to one aspect, the signal supply path includes: a common line connected to the control circuit; a first branch line connecting the common line and the first radiator array; and a second branch line connecting the common line and the second radiator array; may include.

According to one aspect, the common line operates in TEM (Transverse ElectroMagnetic) mode, and at least one of the first branch line and the second branch line operates in TM (Transverse Magnetic) mode or TE (Transverse Electric) mode. It can work.

According to one aspect, the first branch line includes a first waveguide that passes a signal for the first radiator array and does not pass a signal for the second radiator array, and the second branch line may include a second waveguide that passes signals for the second radiator array and does not pass signals for the first radiator array.

According to one aspect, the signal supply path is provided in at least one of the first branch line and the second branch line to filter at least one of a signal for the first radiator array or a signal for the second radiator array. It may further include a filter circuit.

According to one aspect, the signal supply path is disposed between the common line, the first branch line, and the second branch line to transmit a signal from the common line to either the first branch line or the second branch line. It may further include a switch configured to selectively transmit to one.

According to one aspect, the signal supply path further includes a coupler or diplexer disposed between the common line, the first branch line, and the second branch line, and the coupler or diplexer includes the first branch line. A signal branch for the first branch line or the second branch line may be controlled based on the radiator of the first radiator array, the radiator of the second radiator array, and the impedance of the coupler or diplexer.

According to one aspect, the coupler or diplexer has a shape of the coupler or diplexer; The number of at least one stub provided in the coupler or diplexer; Alternatively, the impedance may be configured to change in response to changing at least one of the placement positions of the stub.

According to one aspect, each radiator included in the first radiator array is a filtering antenna configured to filter signals in a frequency band that does not correspond to the first frequency cluster, and is included in the second radiator array. Each radiator may be a filtering antenna configured to filter signals in a frequency band that does not correspond to the second frequency cluster.

According to one aspect, the filtering antenna may be configured to change the filtered frequency band by changing the shape of the radiator.

According to one aspect, each radiator included in the first radiator array has a first notch, and each radiator included in the second radiator array has a size, shape, or arrangement with the first notch. At least one of the locations may have a different second notch.

According to one aspect, the first frequency cluster and the second frequency cluster may each include one frequency band.

According to one aspect, the first frequency cluster and the second frequency cluster may each include a plurality of frequency bands.

According to one aspect, the first frequency cluster may include a 24 GHz band, a 28 GHz band, and a 37 GHz band.

According to one aspect, the second frequency cluster may include a 43 GHz band, a 47 GHz band, and a 52 GHz band.

According to one aspect, a third radiator array corresponding to a third frequency cluster; It further includes, wherein the control circuit supplies a signal to at least one of the first radiator array, the second radiator array, and the third radiator array, and the signal supply path includes the control circuit and the first radiator. An array, the second radiator array, and the third radiator array are connected, and the third frequency cluster may include a 60 to 73 GHz band, a 77 to 82 GHz band, and a 94 GHz band.

According to one aspect, the control circuit includes an RFIC that applies a signal to at least one of the first radiator array and the second radiator array; Alternatively, it may include any one of a digital integrated circuit, a modem, or an AP control unit configured to control an RFIC that applies a signal to at least one of the first radiator array and the second radiator array.

A stacked radiator module including a plurality of layers according to an embodiment of the present invention includes a first radiator corresponding to a first frequency cluster; a second radiator corresponding to a second frequency cluster; and a signal supply path connecting a feed port that receives a signal from a control circuit and the first radiator and the second radiator; It may be configured to radiate signals for a plurality of frequency bands, including.

According to one aspect, the signal supply path receives at least one of a signal for the first radiator and a signal for the second radiator through the feed port, and transmits the received signal for the first radiator to the first radiator. It may be configured to supply the signal to the radiator and to supply the received signal for the second radiator to the second radiator.

According to one aspect, the signal supply path includes: a common line connected to the power supply port; a first branch line connecting the common line and the first radiator; and a second branch line connecting the common line and the second radiator; may include.

According to one aspect, the signal supply path and the first radiator are formed in different layers, and the first branch line and the first radiator may be connected or electrically connected through a via hole.

According to one aspect, the signal supply path and the second radiator are formed in different layers, and the second branch line and the second radiator may be connected or electrically connected through a via hole.

According to one aspect, the signal supply path may control a signal branch to the first branch line or the second branch line based on impedance to the common line, the first branch line, and the second branch line. there is.

According to one aspect, at least one of the first branch line or the second branch line may include at least one stub.

According to one aspect, the signal supply path may be configured such that the impedance changes in response to changing at least one of the number, placement position, or length of the at least one stub.

According to one aspect, the first radiator includes a first lower patch connected to the signal supply path through a via hole; and a first upper patch formed on a different layer from the first lower patch and electrically connected to the first lower patch. may include.

According to one aspect, the first upper patch and the first lower patch may be configured to radiate signals at different frequencies.

According to one aspect, the first upper patch and the second lower patch may differ from each other in at least one of shape, size, presence of a parasitic circuit, shape of the parasitic circuit, size of the parasitic circuit, and number of parasitic circuits. there is.

According to one aspect, the second radiator includes a second lower patch connected to the signal supply path through a via hole; and a second upper patch formed on a different layer from the second lower patch and electrically connected to the second lower patch. may include.

According to one aspect, the first lower patch and the second lower patch may be formed in different layers.

According to one aspect, the first upper patch and the second upper patch may differ from each other in at least one of shape, size, presence of a parasitic circuit, shape of the parasitic circuit, size of the parasitic circuit, and number of parasitic circuits. there is.

According to one aspect, the signal supply path may include a branch element between the common line, the first branch line, and the second branch line.

According to one aspect, the branch element may include at least one of a power divider, a ring hybrid coupler, and a directional coupler.

According to one aspect, the signal supply path includes: a vertical polarization path that supplies a signal for vertical polarization to each of the first radiator and the second radiator; and a horizontal polarization path that supplies signals for horizontal polarization to each of the first and second radiators; may include.

According to one aspect, a first radiator array in which a plurality of the first radiators are arranged at a first interval; and a second radiator array in which a plurality of the second radiators are arranged at a second interval different from the first interval. may further include.

According to one aspect, the first interval is an interval between radiators for performing beamforming on a signal of at least one frequency band among the frequency bands included in the first frequency cluster, and the second interval is the first interval. It may be a gap between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the two frequency cluster.

According to one aspect, the control circuit includes an RFIC that applies a signal to at least one of the first radiator array and the second radiator array; Alternatively, it may include any one of a digital integrated circuit, a modem, or an AP control unit configured to control an RFIC that applies a signal to at least one of the first radiator array and the second radiator array.

A radiator module including radiators disposed in a light-transmissive area according to an embodiment of the present invention includes: a first radiator disposed in the light-transmissive area and corresponding to a first frequency cluster; a second radiator disposed in the optically transmissive region and corresponding to a second frequency cluster; and a signal supply path connecting a power supply port that receives a signal from a control circuit and the first radiator and the second radiator; It may be configured to radiate signals for a plurality of frequency bands, including.

According to one aspect, the signal supply path receives at least one of a signal for the first radiator and a signal for the second radiator through the feed port, and transmits the received signal for the first radiator to the first radiator. It may be configured to supply the signal to the radiator and to supply the received signal for the second radiator to the second radiator.

According to one aspect, the signal supply path includes: a common line connected to the power supply port; a first branch line connecting the common line and the first radiator; and a second branch line connecting the common line and the second radiator; may include.

According to one aspect, the light-transmissive area may include a display panel.

According to one aspect, the signal supply path may be disposed in a power feeding area adjacent to the light transmissive area.

According to one aspect, the power feeding area may be composed of a flexible printed circuit board (FPCB).

According to one aspect, the signal supply path includes: a vertical polarization path that supplies a signal for vertical polarization to each of the first radiator and the second radiator; and a horizontal polarization path that supplies signals for horizontal polarization to each of the first and second radiators; may include.

According to one aspect, the vertical polarization path and the horizontal polarization path are disposed in different layers of the FPCB, and the radiator connection portion of at least one of the vertical polarization path and the horizontal polarization path passes through a via to connect the vertical polarization path to the vertical polarization path. The radiator connection portion of the polarization path and the radiator connection portion of the horizontal polarization path may be configured to be located on the same layer of the FPCB.

According to one aspect, the first radiator and the second radiator may be disposed adjacent to the power feeding area within the light transmissive area.

According to one aspect, a first radiator array in which a plurality of the first radiators are arranged at a first interval; and a second radiator array in which a plurality of the second radiators are arranged at a second interval different from the first interval. may further include.

According to one aspect, the first radiator array and the second radiator array may form one row, and the first radiator and the second radiator may be arranged alternately.

According to one aspect, the first interval is an interval between radiators for performing beamforming on a signal of at least one frequency band among the frequency bands included in the first frequency cluster, and the second interval is the first interval. It may be a gap between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the two frequency cluster.

According to one aspect, the signal supply path includes a first signal supply path corresponding to a first pair of a first radiator and a second radiator disposed adjacently; and a second signal supply path corresponding to a second pair of the first and second radiators disposed adjacently; may include.

According to one aspect, the gap between the first radiator connection and the second radiator connection of the first signal supply path may be formed differently from the gap between the first radiator connection and the second radiator connection of the second signal supply path. .

According to one aspect, the signal supply path may be disposed in the light-transmissive area.

According to one aspect, the signal supply path may be configured in a mesh form to have light transparency.

According to one aspect, the signal supply path may control a signal branch to the first branch line or the second branch line based on impedance to the common line, the first branch line, and the second branch line. there is.

According to one aspect, at least one of the first branch line or the second branch line may include at least one stub.

According to one aspect, the signal supply path may be configured such that the impedance changes in response to changing at least one of the number, placement position, or length of the at least one stub.

According to one aspect, the control circuit includes an RFIC that applies a signal to at least one of the first radiator array and the second radiator array; Alternatively, it may include any one of a digital integrated circuit, a modem, or an AP control unit configured to control an RFIC that applies a signal to at least one of the first radiator array and the second radiator array.

The disclosed technology can have the following effects. However, since it does not mean that a specific embodiment must include all of the following effects or only the following effects, the scope of rights of the disclosed technology should not be understood as being limited thereby.

According to the antenna device, the stacked multi-band radiator module, and the optically transparent multi-band radiator module having a plurality of radiator arrays according to an embodiment of the present invention described above, a plurality of radiators each having different intervals corresponding to a plurality of frequency bands. A signal supply path can be provided between the array and the control circuit.

Therefore, a multi-band radiator array can be placed within the same antenna module, and excellent beam forming performance can be secured for signals of different frequency bands while reducing the space occupied by the antenna module in the wireless communication device, improving the layout design of the wireless device. It can be performed efficiently and miniaturization of the device can be achieved.

In addition, since multi-band radiator arrays can be controlled based on a single control circuit, the number of control circuits required for manufacturing an antenna module can be reduced, and thus costs can also be reduced.

Figure 1 shows the concept of beamforming for wireless signals.
Figure 2 shows different separation distances between radiators according to different frequencies.
Figure 3 shows separate antenna modules for different frequencies.
4 illustrates antenna placement of a mobile device.
Figure 5 shows an example in which individual control circuits are provided for each radiator array corresponding to different frequencies.
Figure 6 schematically shows an antenna device including a plurality of radiator arrays according to an embodiment of the present invention.
Figure 7 shows the signal transmission and reception flow of the signal supply path of Figure 6.
Figure 8 shows a signal supply path using a waveguide according to one aspect of the present invention.
Figure 9 is an example diagram of the waveguides of Figure 8.
Figure 10 shows a signal supply path using a filter according to one aspect of the present invention.
Figure 11 illustrates the frequency selectivity of the filter of Figure 10.
Figure 12 shows a signal supply path using a switch according to one aspect of the present invention.
Figure 13 shows a signal supply path using an impedance-based branch element according to an aspect of the present invention.
Figure 14 shows examples of branching elements according to one aspect of the present invention.
Figure 15 shows a signal supply path using a filtering antenna according to one aspect of the present invention.
Figure 16 shows an example configuration of a stacked radiator module.
Figure 17 is a plan view showing an exemplary configuration of a stacked multi-band radiator module according to an embodiment of the present invention.
Figure 18 is a side view showing an exemplary configuration of a stacked multi-band radiator module according to an embodiment of the present invention.
Figure 19 is a perspective view showing an exemplary configuration of a stacked multi-band radiator module according to an embodiment of the present invention.
FIG. 20 explains ports of the signal supply path of FIG. 17.
FIG. 21 shows an electric field plot (E Field Plot) for each frequency according to the signal supply path of FIG. 20.
Figure 22 shows a radiation pattern of a radiator array having an appropriate radiator spacing for each frequency band.
Figure 23 shows the radiation pattern for a signal in the 24 GHz band in an radiator array with an radiator spacing of 3.2 mm.
Figure 24 shows the radiation pattern for a signal in the 47.5 GHz band in an radiator array with an radiator spacing of 6.5 mm.
Figure 25 shows an exemplary configuration of a signal supply path for performing dual polarization in a stacked radiator module according to an aspect of the present invention.
Figure 26 shows an exemplary configuration of an optically transmissive emitter module.
Figure 27 shows an exemplary configuration of a light-transmissive multi-band radiator module according to an embodiment of the present invention.
FIG. 28 is an exemplary diagram of the signal supply path of FIG. 27.
FIG. 29 shows the spacing between radiator connections of each of the plurality of signal supply paths of FIG. 27.
Figure 30 shows an exemplary configuration of a signal supply path for performing dual polarization in an optically transparent radiator module according to an aspect of the present invention.
FIG. 31 is an exemplary side view of the signal supply path of FIG. 30.
Figure 32 is an exemplary diagram of a signal supply path arrangement for a light-transmissive area according to one aspect of the present invention.
Figure 33 is an exemplary diagram of a signal supply path arrangement in a light-transmissive area for a single polarization structure.
Figure 34 is an exemplary diagram of a signal supply path arrangement in a light-transmissive area for a dual polarization structure.
Figure 35 shows embodiments of an optically transmissive area signal supply path arrangement.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

Terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be referred to as a second component, and similarly, the second component may be referred to as a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings. In order to facilitate overall understanding when describing the present invention, the same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted.

An antenna device is required to transmit or receive signals for wireless communication. To achieve higher performance, various types and methods of antenna devices have been developed, and beam forming technology is widely used to control the radiation direction of the signal to maximize the strength of the transmitted and received signals between the base station and the terminal. . In particular, recent wireless communication technologies, such as 3GPP 5G, have begun to use frequencies in the millimeter wave (mmWave) band, and the mmWave band wireless channel environment has the characteristics of free space path loss and diffraction reduction, leading to signal attenuation. In order to solve the problem that may occur, beam forming technology using phased array antennas is being applied more importantly. Such beam forming technology is required for both base stations and terminals, and is especially essential for securing wide coverage and overcoming propagation loss in a mobile wireless channel environment.

Figure 1 shows the concept of beamforming for wireless signals. As shown in FIG. 1, the phased array antenna is a signal supplied to a plurality of radiators (10-1, 10-2, 10-3, 10-4, 10-5) having a constant interval (d ₁ ). It is possible to steer the signal radiated by the antenna by controlling the phase and/or size of . Therefore, beam steering can be performed in a direction that can secure the highest performance.

Meanwhile, the initial use of the millimeter wave band was made for specific frequency bands, such as the 28 GHz band, but attempts to utilize various frequency bands, such as the 52 GHz band, are gradually appearing. However, in order to perform beam forming, it is required to adjust the spacing between each radiator of the antenna array to match the frequency band of the signal to be radiated.

Figure 2 shows different separation distances between radiators according to different frequencies. As shown in FIG. 2, the first antenna array includes a plurality of first radiators 10-1, 10 arranged to have a first spacing d ₁ to perform beam forming for the first frequency band. -2, 10-3, 10-4, 10-5) can be provided. On the other hand, the second antenna array includes a plurality of second radiators (20-1, 20-2, 20-) arranged to have a second spacing (d ₂ ) in order to perform beam forming for the second frequency band. 3, 20-4, 20-5) can be provided.

In general, it is known that in order to perform beam forming, it is desirable to arrange the plurality of radiators so that the spacing between them is 0.4 to 0.6 λ. Therefore, it is possible to perform beam forming for a frequency band in a predetermined range based on the radiator array arranged at predetermined intervals, and for frequency bands where the deviation is not large even if it deviates somewhat from the predetermined range, the beam forming is possible in the corresponding frequency band. It may be possible to perform beam forming with some degree of loss even in an radiator array arranged with spacing between radiators that are not exactly aligned. However, when the difference in frequency bands is large, beamforming for signals in different frequency bands may be impossible based on an antenna array with a spacing corresponding to a specific frequency.

For example, among the millimeter wave bands defined as FR2 (Frequency Range 2) in 3GPP 5G, the production of antenna devices was initially mainly focused on 28 GHz. However, attempts are being made to utilize various millimeter wave frequency bands, and production of antenna devices for various bands such as the 24, 28, 37, 43, 47, and 52 GHz bands has been started or is scheduled to be produced. Antenna devices for these various new frequency bands require that the separation distance between radiators, which was conventionally set to 28 GHz, be adjusted. For example, for bands with large differences such as 28 GHz and 47 GHz, beam steering is not possible with radiators having the same separation distance. In other words, there is a problem that beam forming cannot be performed simultaneously at various frequencies with one radiator array.

In order to perform beamforming for multiple bands, a form of separately providing each radiator array for each frequency band may be considered. Figure 3 shows separate antenna modules for different frequencies. As shown in FIG. 3, the first radiator module includes a plurality of first radiators (10-1, 10-2, 10-3, 10-4, 10-5) on a first substrate (10p). The second radiator module is configured to have a plurality of second radiators (20-1, 20-2, 20-3, 20-4, 20-5) on the second substrate (20p), A plurality of substrates for the radiator array may be provided. Each substrate can constitute one antenna device. However, the fact that wireless communication devices, such as mobile phones or laptops, are equipped with multiple antenna devices according to an array of multiple radiators causes cost and space utilization limitations. In other words, there is a problem in that it increases the difficulty of space design for a wireless communication device and is disadvantageous in terms of cost.

4 illustrates antenna placement of a mobile device. As shown in FIG. 4, for example, the mobile device includes various antennas such as a Wi-Fi antenna 41, a 3G or 4G antenna 47, a GPS antenna 43, etc. in addition to a plurality of 5G antennas, and a camera module. (45) Since it also includes components such as batteries and batteries, providing each antenna device corresponding to multiple frequency bands can drastically increase the difficulty of space design for various antenna devices and other electronic components. there is.

The present invention is intended to solve this problem and may include a multi-band antenna array beam forming control technology located within the same antenna module. According to one aspect of the present invention, a plurality of radiator arrays for multiple bands may be provided together within the same antenna module.

Figure 5 shows an example in which individual control circuits are provided for each radiator array corresponding to different frequencies. As shown in FIG. 5, the first radiator array 10a and the second radiator array 20a may be provided together on one substrate 50p. The first radiator array 10a includes a plurality of first radiators 10-1, 10-2, 10-3, 10-4, and 10-5 having an interval corresponding to a first frequency, and a second radiator array 10a. The radiator array 20a includes a plurality of second radiators 20-1, 20-2, 20-3, 20-4, and 20-5 with intervals corresponding to the second frequency.

According to one aspect, as shown in Figure 5, the first radiators (10-1, 10-2, 10-3, 10-4, 10-5) are controlled by the first control circuit (10r), The second radiators 20-1, 20-2, 20-3, 20-4, and 20-5 can be controlled by the second control circuit 20r. Here, the control circuit may be an RFIC that applies a signal to the radiator array, but is not limited thereto. For example, the control circuit may be any one of a digital integrated circuit, a modem, or an AP controller configured to control an RFIC that supplies signals to the radiator array, or any of various types of configurations that supply signals to other radiators. It may be a composition of .

As shown in FIG. 5, when one control circuit is provided for each radiator array, even if a plurality of radiator arrays can be provided in one antenna device, a plurality of control circuits must be provided, so the antenna device Miniaturization is difficult to achieve. In addition, in terms of cost, there may be a burden of having multiple control circuits.

In relation to this, according to an antenna device having a plurality of radiator arrays, a stacked multi-band radiator module, and a light-transmissive multi-band radiator module according to an embodiment of the present invention, a plurality of devices each having different intervals corresponding to a plurality of frequency bands A signal supply path between the radiator array and the control circuit can be provided.

Additionally, it is possible to place multi-band radiator arrays within the same antenna module and control a plurality of radiator arrays based on a single control circuit. Therefore, while securing excellent beamforming performance for signals of different frequency bands, the space occupied by the antenna module in the wireless communication device can be reduced, allowing efficient layout design of wireless devices and miniaturization of the device. there is.

In addition, since multi-band radiator arrays can be controlled based on a single control circuit, the number of control circuits required for manufacturing an antenna module can be reduced, and thus costs can also be reduced.

antenna device

Figure 6 schematically shows an antenna device including a plurality of radiator arrays according to an embodiment of the present invention. Hereinafter, the antenna device 1000 including a plurality of radiator arrays according to an embodiment of the present invention will be described in more detail with reference to FIG. 6.

As shown in FIG. 6, the antenna device 1000 according to an embodiment of the present invention includes a first radiator array 10a, a second radiator array 20a, a signal supply path 200, and a control circuit 400. ) may include.

According to the side, the first radiator array 10a and the second radiator array 20a may be formed on the substrate 100, but are not limited thereto, for example, AiP (Antenna-in-Package) or AoD (Antenna) It should be understood that various forms for implementing a radiator array, including a stacked antenna device and a transparent antenna device such as (on display), are included in the technical spirit of the present invention.

The control circuit 400 may be configured to supply a signal to at least one of the first radiator array 10a and the second radiator array 20a. The control circuit 400 may be an RFIC that applies a signal to the radiator array, but is not limited thereto. For example, the control circuit 400 may be any one of a digital integrated circuit, a modem, or an AP control unit configured to control an RFIC that supplies signals to the radiator array, and various types of components that supply signals to other radiators. It may be any configuration selected from among.

The signal supply path 200 may be configured to connect the control circuit 400 and the first radiator array 10a and the second radiator array 20a. More specifically, the signal supply path 200 may include a first signal supply path 200-1 to a fifth signal supply path 200-5, as exemplarily shown in FIG. 6 . The first signal supply path 200-1 connects the control circuit 400 and the first radiator 10-1 and the second radiator 20-1, and the second signal supply path 200-2 connects the control circuit 400 to the first radiator 10-1 and the second radiator 20-1. Connects the circuit 400 and the first radiator 10-2 and the second radiator 20-2, and the third signal supply path 200-3 connects the control circuit 400 and the first radiator 10-3. ) and the second radiator (20-3), and the fourth signal supply path (200-4) connects the control circuit 400 with the first radiator (10-4) and the second radiator (20-4). And, the fifth signal supply path 200-5 may be configured to connect the control circuit 400 and the first radiator 10-5 and the second radiator 20-5.

As shown in FIG. 6, the first radiator array 10a may be configured to correspond to the first frequency cluster. More specifically, the first radiator array 10a may include a plurality of first radiators 10-1, 10-2, 10-3, 10-4, and 10-5 arranged at first intervals. there is. Here, the first spacing may be a spacing between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the first frequency cluster. In other words, the first radiator array 10a may be arranged to have an appropriate spacing between radiators to perform beam forming on a signal having the frequency band of the first frequency cluster.

Meanwhile, the second radiator array 20a may be configured to correspond to the second frequency cluster. More specifically, the second radiator array 20a includes a plurality of second radiators 20-1, 20-2, 20-3, 20-4, 20-5 arranged at a second interval different from the first interval. ) may include. Here, the second interval may be an interval between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the second frequency cluster. In other words, the second radiator array 20a may be arranged to have an appropriate spacing between radiators to perform beam forming on a signal having the frequency band of the second frequency cluster.

Here, 'frequency clusters' such as a first frequency cluster or a second frequency cluster may mean that each includes one frequency band. For example, the first frequency cluster may be in the 28 GHz band, and the second frequency cluster may be in the 45 GHz band.

On the other hand, 'frequency clusters' such as a first frequency cluster and a second frequency cluster may each mean including a plurality of frequency bands. For example, the first frequency cluster may include the 24 GHz band, 28 GHz band, and 37 GHz band, and the second frequency cluster may include the 43 GHz band, 47 GHz band, and 52 GHz band.

For example, the antenna device 1000 according to an embodiment of the present invention may be configured to include first to third radiator arrays corresponding to first to third frequency clusters. For example, the antenna device 1000 may further include a third radiator array corresponding to the third frequency cluster. The control circuit 400 supplies a signal to at least one of the first radiator array, the second radiator array, and the third radiator array, and the signal supply path 200 supplies a signal to the control circuit and the first radiator array, the second radiator array, and A third radiator array can be connected. In this embodiment, for example, the first frequency cluster includes the 24 GHz band, 28 GHz band, and 37 GHz band, and the second frequency cluster includes the 43 GHz band, 47 GHz band, and 52 GHz band, and , the third frequency cluster may include a 60 to 73 GHz band, a 77 to 82 GHz band, and a 94 GHz band.

However, this division of frequencies according to each cluster is merely illustrative, and the technical idea of the present invention is not limited thereto. According to embodiments of the present invention, it is possible to implement a multi-band antenna that accommodates similar frequency bands by clustering frequency bands. Division of clusters may be based on various frequency divisions. For example, the first frequency cluster may be configured to correspond to the Ka band frequency band, and the second frequency cluster may be configured to correspond to the V band frequency band. or the first frequency cluster corresponds to n258 (24.25 GHz to 27.5 GHz), the second frequency cluster corresponds to n257 (26.5 GHz to 29.5 GHz), and the third frequency cluster corresponds to n260 (37 GHz to 40 GHz) It may be configured to do so. Those skilled in the art of wireless communication technology will understand that clustering and classifying frequency bands according to various criteria is also included in the technical idea of the present invention.

Figure 7 shows the signal transmission and reception flow of the signal supply path of Figure 6. Hereinafter, the signal supply path 200 according to one aspect of the present invention will be described in more detail with reference to FIG. 7.

Typically, the signal transmission and reception path is implemented using a TEM Mode cable. TEM Mode refers to a state in which both electric and magnetic fields are perpendicular to the direction of propagation of radio waves, and the transmission line in TEM Mode does not perform a filtering function for signals of a specific frequency, for example, signals with a frequency of 0 to 100 GHz. It is configured to allow all of them to pass through. Therefore, if the control circuit emits multiple control signals corresponding to multiple frequency bands and configures the signal supply path only with the TEM mode transmission line, the multiple control signals corresponding to these multiple frequency bands are transmitted to the control circuit. It is transmitted to all connected emitters.

According to one embodiment of the present invention, radiator arrays operating in two or more different frequency bands are electrically/physically connected and integrated to connect to a control circuit, and the control circuit emits all control signals corresponding to a plurality of frequency bands. However, by appropriately configuring the signal supply path 200, only control signals for the frequency band corresponding to the corresponding radiator array can be transmitted to each radiator array.

More specifically, according to one aspect of the present invention, radiators between a plurality of cluster radiator arrays may be connected to each other and connected to one RFIC. As shown in FIG. 7, the first radiator 10 of the first radiator array 10a and the second radiator 20 of the second radiator array 20a are connected to each other, and are connected to the control circuit 400 again. You can make it connected.

The signal supply path 200 according to one aspect includes a common line 240 connected to the control circuit 400, a first line connecting the common line 240 and the first radiator 10 of the first radiator array 10a. It may include a branch line 210 and a second branch line 220 connecting the common line 240 and the second radiator 20 of the second radiator array 20a.

According to one embodiment of the present invention, the control circuit 400 may be configured to output at least one of a signal for the first radiator array 10a and a signal for the second radiator array 20a. For example, the control circuit 400 may output both a signal for controlling the first radiator array 10a and a signal for controlling the second radiator array 20a. Here, the signal for control may be, for example, a power supply signal corresponding to the corresponding frequency, but is not limited thereto.

As shown in FIG. 7, the signal supply path 200 is configured so that, among the signals S400 output from the control circuit 400, the signal S10 for the first radiator array is the first radiator array 10a. of the first radiator 10, and among the signals S400 output from the control circuit, the signal S20 for the second radiator array is transmitted to the second radiator 20 of the second radiator array 20a. It can be configured to supply.

For example, the common line 240 operates in Transverse Electromagnetic (TEM) mode, and at least one of the first branch line 210 and the second branch line 220 operates in Transverse Magnetic (TM) mode or TE ( It can be configured to operate in Transverse Electric mode. That is, the common line 240 operates in a TEM mode in which both the electric and magnetic fields are perpendicular to the direction of propagation of radio waves, so that the signal corresponding to the first frequency cluster and the second frequency cluster output by the control circuit 400 It can be configured to allow all signals corresponding to to pass. On the other hand, the first branch line 210 and/or the second branch line 220 operates in the TE mode, in which only the electric field is perpendicular to the propagation direction, or in the TM mode, in which only the magnetic field is perpendicular to the propagation direction, The first branch line 210 may pass only signals corresponding to the first frequency cluster, and the second branch line 220 may pass only signals corresponding to the second frequency cluster.

In the following, various embodiments for implementing such a signal supply path 400 will be described, but note that this is merely an example and the technical idea of the present invention is not limited thereto.

FIG. 8 shows a signal supply path using a waveguide according to an aspect of the present invention, and FIG. 9 is an example diagram of the waveguides of FIG. 8.

As shown in FIG. 8, the first branch line 210 according to one aspect of the present invention is a first waveguide that passes the signal for the first radiator array and does not pass the signal for the second radiator array. ) 800a, and the second branch line 220 may include a second waveguide 800b that passes signals for the second radiator array and does not pass signals for the first radiator array.

A waveguide may include a structure for guiding electromagnetic waves by limiting their expansion to one or two dimensions. For example, it can be implemented as a hollow conductive metal pipe configured to carry electromagnetic waves. It can refer to any structure that confines and induces electromagnetic waves to propagate, and mainly refers to a conductive metal tube that is hollow and has a circular or rectangular cross-section to allow the propagation of electromagnetic waves.

For example, the radio wave propagation path by TEM mode may be referred to as a 'transmission line', and 'waveguide' mainly refers to the radio wave propagation path by TE mode or TM mode. Waveguides are limited to specific propagation modes with boundary conditions depending on the shape of the structure. For example, the propagation mode may be determined based on the number of electromagnetic wave component peaks on the x and y axes. According to one aspect, the propagation mode of the waveguide may vary depending on the size of the cross section of the empty space inside the conductor metal tube. For example, as shown in Figure 9, the first waveguide 800a has a width of empty space such that it has a boundary condition of passing signals corresponding to the first frequency cluster and not passing signals corresponding to the second frequency cluster. and height, and the second waveguide 800b can determine the width and height of the empty space to have a boundary condition of passing signals corresponding to the second frequency cluster and not passing signals corresponding to the first frequency cluster. .

Figure 10 shows a signal supply path using a filter according to one aspect of the present invention, and Figure 11 illustrates the frequency selectivity of the filter of Figure 10.

As shown in FIG. 10, the signal supply path 200 is provided in at least one of the first branch line 210 and the second branch line 220 to provide a signal to the first radiator array or to the second radiator array. It may further include a filter circuit 1010 that filters at least one of the signals.

As shown in Figure 11, various types of filters that pass only signals of specific frequency components, such as a High Pass Filter (HPF) that passes only signals above a certain frequency or a Low Pass Filter (LPF) that passes only signals below a certain frequency. exists. According to one aspect of the present invention, for example, the first branch line 210 may be provided with a filter that passes only signals having a frequency band corresponding to the first frequency cluster. Additionally, for example, the second branch line 220 may be provided with a filter that passes only signals having a frequency band corresponding to the second frequency cluster.

10 exemplarily shows a filter 1010 at the intersection of the first branch line 210, the second branch line 220, and the common line 240, but this is only an example and the position of the filter is adopted. Depending on the characteristics or type of the filter, it may be appropriately placed on the first branch line 210, the second branch line 220, the common line 240, or a combination thereof.

Figure 12 shows a signal supply path using a switch according to one aspect of the present invention. As shown in FIG. 12, the signal supply path 200 is disposed between the common line 240, the first branch line 210, and the second branch line 220, so that the common line 240, the first branch Connected to at least a portion of line 210 and second branch line 220 to selectively convey a signal from common line 240 to either first branch line 210 or second branch line 220. It may further include a configured switch 1210. Here, the switch 1210 may include an electrical switch and/or a physical switch. For example, switch 1210 may be a Single Pole, Double Throw (SPDT) switch. For example, the switch 1210 may be configured to operate adaptively to the frequency of a signal output from the control circuit 400. For example, in response to the control signal corresponding to the first frequency cluster being output from the control circuit 400, the first branch line 210 and the common line 240 are connected, thereby generating a signal corresponding to the first frequency cluster. may be transmitted to the first radiator 10 of the first radiator array 10a, and in response to the control signal corresponding to the second frequency cluster being output from the control circuit 400, the second branch line 220 By connecting the common line 240, a signal corresponding to the second frequency cluster can be transmitted to the second radiator 20 of the second radiator array 20a.

Figure 13 shows a signal supply path using an impedance-based branch element according to an aspect of the present invention. The impedance-based branch element may include a component that distributes a signal corresponding to a specific frequency to appropriate branch lines based on the impedance of a plurality of branch paths. Impedance-based branching elements may include, but are not limited to, couplers or diplexers, for example.

For example, as shown in FIG. 13, the signal supply path 200 according to one aspect of the present invention is disposed between the common line 240, the first branch line 210, and the second branch line 220. It may further include a coupler or diplexer (1300).

Coupler or diplexer 1300 The first branch line 210 or It may be configured to control the signal branch to the second branch line 220.

That is, according to one aspect of the present invention, using a coupler or diplexer (signal distribution configuration), for example, the first radiator port 1310, the second radiator port 1320, and the common path to the rotary 1350. By providing a port 1340 and a matching stub 1370, the impedance for each branch path can be adjusted to guide a signal of a specific frequency to proceed to a specific path. For example, among a plurality of signals input through one common path port 1340, a high frequency signal is output to the first radiator port 1310, and a low frequency signal is output to the second radiator port 1320. can do. Therefore, according to one aspect of the present invention, the signal corresponding to the first frequency cluster is transmitted to the first radiator 10 of the first radiator array 10a, and the signal corresponding to the second frequency cluster is transmitted to the second radiator array It can be transmitted to the second emitter 20 of (20a).

The coupler or diplexer is required to control the impedance along each branch path so that the signal of the desired frequency can be branched to the desired path. According to one aspect of the present invention, the coupler or diplexer 1300 has the shape of the coupler or diplexer, the number of at least one stub 1370 provided in the coupler or diplexer, or the stub ( 1370) may be configured to change the impedance for each branch path in response to changing at least one of the placement positions.

Meanwhile, FIG. 13 exemplarily shows a signal dispersion configuration with two branching paths, but even when applying three or more frequency clusters, it is possible to branch the signal using a single signal dispersion configuration. For example, add a second radiator port to the rotary-type coupler as shown in FIG. 13, and add, for example, the number of stubs 1370 so that the desired frequency signal can be branched to each branch path. The placement position of the stub can be changed.

Figure 14 shows examples of branching elements according to one aspect of the present invention. As illustratively shown in FIG. 14, the impedance-based branching element 1300 according to embodiments of the present invention includes, for example, a power divider 1300a, a ring hybrid coupler 1300b, and a directional coupler. It can be implemented by adopting any one of various signal branch configurations, such as (1300c). Impedance adjustment for each branch path can be appropriately controlled depending on the signal branch configuration adopted.

Figure 15 shows a signal supply path using a filtering antenna according to one aspect of the present invention. According to one aspect of the present invention, the first radiators constituting the first radiator array and the second radiators constituting the second radiator array each receive signals in the corresponding frequency band, and signals other than the corresponding frequency band are received. It may be a filtering antenna that does not accept it.

For example, it is possible to employ a filtering antenna so that the radiator itself filters certain frequencies. For example, the radiator of the first radiator array has a function of filtering other frequency band signals (e.g., a frequency band corresponding to the second frequency cluster), and the radiator of the second radiator array has a function of filtering other frequency band signals (e.g., a frequency band corresponding to the second frequency cluster). For example, it may be provided with a function of filtering a frequency band corresponding to the first frequency cluster. For example, it is possible to design it to emit different frequency bands by changing the shape of the radiator.

In more detail and not by way of limitation, according to one aspect, each radiator 10 included in the first radiator array is a filtering antenna configured to filter signals in a frequency band that does not correspond to the first frequency cluster. , and each radiator 20 included in the second radiator array may be a filtering antenna configured to filter signals in a frequency band that does not correspond to the second frequency cluster.

For example, when the first filtering radiator 10f as shown in FIG. 15 receives a signal in a frequency band corresponding to the first frequency cluster from the control circuit 400 through the signal supply path 200, It may be configured to radiate a wireless signal corresponding to the first frequency cluster. On the other hand, the first filtering radiator 10f may be configured to filter signals other than those in the frequency band corresponding to the first frequency cluster. For example, when a signal in a frequency band corresponding to the second frequency cluster is transmitted to the first filtering radiator 10f, the first filtering radiator 10f may filter it and not accept it. Accordingly, the wireless signal corresponding to the second frequency cluster can be prevented from being radiated through the first filtering radiator 10f.

Meanwhile, when the second filtering radiator 20f receives a signal in a frequency band corresponding to the second frequency cluster from the control circuit 400 through the signal supply path 200, it transmits a wireless signal corresponding to the second frequency cluster based on this. It may be configured to emit a signal. On the other hand, the second filtering radiator 20f may be configured to filter signals other than those in the frequency band corresponding to the second frequency cluster. For example, when a signal in a frequency band corresponding to the first frequency cluster is transmitted to the second filtering radiator 20f, the second filtering radiator 20f may filter it and not accept it. Accordingly, the wireless signal corresponding to the first frequency cluster can be prevented from being radiated through the second filtering radiator 20f.

The first filtering radiator 10f or the second filtering radiator 20f may be any filtering antenna selected from various types of radiators having a function of filtering signals in an undesired band. Various studies are continuously being conducted to implement filtering antennas.

In more detail and not by way of limitation, the filtering antenna according to one aspect may be configured to change the filtered frequency band by changing the shape of the radiator. As a simple example, the frequency band to be filtered can be determined by forming a notch of at least one of different sizes, shapes, or placement positions on the radiator. As shown in FIG. 15, for example, each radiator 10f included in the first radiator array has a first notch n1, and each radiator 20f included in the second radiator array ) may be provided with a second notch 20f that is different from the first notch n1 in at least one of size, shape, or arrangement position. Accordingly, the first radiator and the second radiator may be configured to filter signals in different frequency bands, receive signals in a desired band, and radiate wireless signals. However, it should be understood that at least one of various means for determining the passband may be employed to implement the filtering antenna.

As discussed above, the antenna device 1000 according to an embodiment of the present invention miniaturizes the antenna device by providing radiator arrays corresponding to a plurality of frequency bands in the same antenna device and controlling it based on the same control circuit, thereby enabling wireless It can reduce the difficulty of space design for devices and improve cost efficiency.

Stacked multi-band emitter module

Figure 16 shows an example configuration of a stacked radiator module. As shown in FIG. 16, the radiator module may be implemented as a stacked radiator module including a plurality of layers. For example, a radiator or Elements such as signal supply paths can be configured. As exemplarily shown in FIG. 16 , the stacked radiator module 1600 includes a plurality of layers, and the radiator layer area 1610 may function as an radiator. A first patch 1611 and a second patch 1613 may be formed in the radiator layer area 1610, and each may be configured to radiate a signal. For example, the second patch 1613 may be connected to the horizontal polarization port 1615h and the vertical polarization port 1615v through a via hole, and may be configured to receive feed signals for vertical polarization or horizontal polarization, respectively. The stacked radiator module can be implemented by selecting any one of various processes and materials, such as PCB, LTCC, and Glass. According to one aspect, a stacked radiator module can be used to implement an antenna device in a package form, such as, for example, AiP (Antenna-in-package).

According to an embodiment of the present invention, it is possible to implement a radiator module including a plurality of radiator arrays corresponding to different frequency bands as a stacked radiator module. FIG. 17 is a plan view showing an exemplary configuration of a stacked multi-band radiator module according to an embodiment of the present invention, and FIG. 18 is a side view showing an exemplary configuration of a stacked multi-band radiator module according to an embodiment of the present invention. Figure 19 is a perspective view showing an exemplary configuration of a stacked multi-band radiator module according to an embodiment of the present invention. Hereinafter, the stacked multi-band radiator module 1700 according to an embodiment of the present invention will be described in more detail with reference to FIGS. 17 to 19.

As shown in FIGS. 17 to 19, the stacked multi-band radiator module 1700 according to one aspect of the present invention may be implemented as a stacked radiator module including a plurality of layers. The stacked multi-band radiator module 1700 includes a first radiator 1710 corresponding to a first frequency cluster, a second radiator 1720 corresponding to a second frequency cluster, and a signal supply path 1730. It may be configured to radiate a signal in the frequency band.

As described above with respect to the antenna device 1000 according to an embodiment of the present invention, the first radiator 1710 and the second radiator 1720 receive signals corresponding to different frequency bands and transmit radio signals accordingly. It may be configured to radiate. For example, the first radiator 1710 receives a feed signal for at least one frequency band included in the first frequency cluster and radiates the corresponding wireless signal, and the second radiator 1720 transmits the signal to the second frequency cluster. It is possible to receive a feeding signal for at least one included frequency band and radiate a corresponding wireless signal.

For convenience of explanation, a first radiator 1710 and a second radiator 1720 are provided in FIGS. 17 to 19, but the stacked multi-band radiator module 1700 according to an aspect of the present invention includes a first radiator array and a second radiator array. Of course, it can include two radiator arrays. The first radiator array may include a plurality of first radiators 1710 arranged at a first interval, and the second radiator array may include a plurality of second radiators 1720 arranged at a second interval different from the first interval. there is.

Here, the first interval is the interval between radiators for performing beam forming on a signal of at least one frequency band among the frequency bands included in the first frequency cluster, and the second interval is the frequency included in the second frequency cluster. It may be an interval between radiators for performing beam forming on a signal of at least one frequency band among the bands. Therefore, according to one aspect of the present invention, the stacked multi-band radiator module 1700 is provided with a first radiator array and a second radiator array having spacings corresponding to different frequency clusters to perform beam forming for each frequency band. It can be configured to perform.

Referring again to FIGS. 17 to 19, the signal supply path 1730 is configured to connect the first radiator 1710 and the second radiator 1720 with the feed port 1780 that receives the signal from the control circuit.

Similar to the antenna device 1000 according to an embodiment of the present invention, the signal supply path 1730 provided in the stacked multi-band radiator module 1700 according to an embodiment of the present invention has a feed port 1780. Receives at least one of a signal for the first radiator and a signal for the second radiator through, supplies the signal for the received first radiator to the first radiator 1710, and supplies the signal for the received second radiator to the first radiator. 2 may be configured to supply to the radiator 1720. More specifically, and not by way of limitation, for example, the control circuit may be configured to output both a feed signal corresponding to the first frequency cluster for the first radiator and a feed signal corresponding to the second frequency cluster for the second radiator. there is. The feed port 1780 may be configured to receive both signals for the first radiator and signals for the second radiator. Here, the signal supply path 1730 may transmit the signal for the first radiator to the first radiator 1710 and transmit the signal for the second radiator to the second radiator 1720 among the received signals.

As shown in FIGS. 17 and 19, the signal supply path 1730 according to one aspect of the present invention includes a common line 1734 connected to a power supply port, and a first branch line for connecting the common line and the first radiator. It may include (1731) and a second branch line (1732) for connecting the common line and the second radiator.

As specifically shown in FIG. 18, the signal supply path 1730 and the first radiator 1710 may be formed in different layers, and the first branch line 1731 and the first radiator 1710 may be formed through a via ( Via) can be connected through the hole (1790a). However, a via hole may not be provided between the first branch line 1731 and the first radiator 1710, and the first branch line 1731 and the first radiator 1710 may be electrically connected. For example, indirect power feeding can be performed based on coupling through the termination pad of the first branch line 1731 and the first radiator 1710.

Additionally, as shown in FIG. 18, the signal supply path 1730 and the second radiator 1720 may be formed in different layers, and the second branch line 1732 and the second radiator 1720 may be formed through a via ( Via) can be connected through the hole (1790b). However, a via hole may not be provided between the second branch line 1732 and the second radiator 1720, and the second branch line 1732 and the second radiator 1720 may be electrically connected. For example, indirect power feeding can be performed based on coupling through the terminal pad of the second branch line 1732 and the second radiator 1720.

More specifically, and not by way of limitation, the signal supply path 1730 is configured to control a signal branch to the first branch line or the second branch line based on the impedance to the common line, the first branch line, and the second branch line. You can. For example, at least one of the first branch line 1731 or the second branch line 1737b may include at least one stub. 17 to 19 illustrate, for example, a first open stub (1737a) provided in the first branch line 1731 and a second open stub (1737b) provided in the second branch line 1732. It is shown as Here, the signal supply path 1730 may be configured so that the impedance for the signal branch changes in response to changing at least one of the number, placement position, or length of the stubs. At least some of the configurations for signal branching of the antenna device 1000 according to an embodiment of the present invention described above are also applied to the signal supply path 1730 of the stacked multi-band radiator module 1700 according to an embodiment of the present invention. Of course, it can be applied. For example, the signal supply path 1730 may have a branch element between the common line, the first branch line, and the second branch line, and the branch element may include a power divider, a ring hybrid coupler, It may include at least one of a Hybrid Coupler and a Directional Coupler, but is not limited thereto.

Referring again to FIGS. 17 to 19, the radiator may be composed of a plurality of elements, for example, an upper patch and a lower patch. For example, the first radiator 1710 may include a first lower patch 1710b and a first upper patch 1710t. The first lower patch 1710b is connected to the signal supply path 1730 through a via hole, and may be configured to directly receive a signal from the signal supply path and radiate a wireless signal corresponding thereto. The first upper patch 1710t may be formed on a different layer from the first lower patch, and may be electrically connected to the first lower patch. According to one aspect, the first upper patch 1710t may be configured to indirectly receive a signal from the signal supply path 1730 through an electrical connection with the first lower patch and radiate a wireless signal corresponding thereto. That is, the first upper patch 1710t and the first lower patch 1710b may each operate as radiators that emit signals. According to another aspect, the first upper patch 1710t and the first lower patch 1710b may be configured to receive signals with opposite phases and the same size to perform end-fire radiation.

When the first upper patch 1710t and the first lower patch 1710b each operate as an radiator, the first upper patch 1710t and the first lower patch 1710b are configured to radiate signals for different frequencies. You can. According to one aspect of the present invention, the first frequency cluster may include a plurality of frequency bands. For example, the first frequency cluster may include the 24 GHz band and the 28 GHz band, where the first upper patch 1710t radiates a wireless signal in the 24 GHz band and the first lower patch 1710b radiates a wireless signal in the 28 GHz band. It may be configured to emit a wireless signal.

The frequency band to which each patch corresponds can be changed by controlling at least one of the shape, size, presence or absence of a parasitic circuit, the shape of the parasitic circuit, the size of the parasitic circuit, and the number of parasitic circuits. For example, the first upper patch 1710t and the first lower patch 1710b are different from each other in at least one of the shape, size, presence of a parasitic circuit, the shape of the parasitic circuit, the size of the parasitic circuit, and the number of parasitic circuits. It may be configured to radiate signals of different frequency bands.

Similar to the first radiator 1710, the second radiator 1720 may include a second lower patch 1720b and a second upper patch 1720t. The second lower patch 1720b is connected to the signal supply path 1730 through a via hole, and may be configured to directly receive a signal from the signal supply path and radiate a wireless signal corresponding thereto. The second upper patch 1720t may be formed on a different layer from the second lower patch, and may be electrically connected to the second lower patch. According to one aspect, the second upper patch 1720t may be configured to indirectly receive a signal from the signal supply path 1730 through an electrical connection with the second lower patch and radiate a wireless signal corresponding thereto. That is, the second upper patch 1720t and the second lower patch 1720b may each operate as radiators that emit signals. According to another aspect, the second upper patch 1720t and the second lower patch 1720b may be configured to receive signals with opposite phases and the same size to perform end-fire radiation.

When the second upper patch 1720t and the second lower patch 1720b each operate as radiators, the second upper patch 1720t and the second lower patch 1720b are configured to radiate signals for different frequencies. You can. According to one aspect of the present invention, the second frequency cluster may include a plurality of frequency bands. For example, the second frequency cluster may include the 43 GHz band and the 52 GHz band, where the second upper patch 1720t radiates wireless signals in the 44 GHz band and the second lower patch 1720b radiates wireless signals in the 52 GHz band. It may be configured to emit a wireless signal.

The frequency band to which each patch corresponds can be changed by controlling at least one of the shape, size, presence or absence of a parasitic circuit, the shape of the parasitic circuit, the size of the parasitic circuit, and the number of parasitic circuits. For example, the second upper patch 1720t and the second lower patch 1720b are different from each other in at least one of the shape, size, presence of a parasitic circuit, the shape of the parasitic circuit, the size of the parasitic circuit, and the number of parasitic circuits. It may be configured to radiate signals of different frequency bands.

Meanwhile, as shown in FIGS. 17 to 19, the first lower patch 1710b and the second lower patch 1720b may be formed in different layers. Accordingly, interference between the first lower patch 1710b and the second lower patch 1720b corresponding to different frequency clusters can be minimized. Additionally, the distance between the upper patch and the lower patch may be used to control the frequency band of the signal emitted by the upper patch.

The first upper patch 1710t and the second upper patch 1720t correspond to different frequency clusters and may be configured to radiate signals in different frequency bands. Accordingly, the first upper patch 1710t and the second upper patch 1720t may differ from each other in at least one of the shape, size, presence of a parasitic circuit, the shape of the parasitic circuit, the size of the parasitic circuit, and the number of parasitic circuits. there is.

FIG. 20 explains ports of the signal supply path of FIG. 17, and FIG. 21 shows an electric field plot (E Field Plot) for each frequency according to the signal supply path of FIG. 20. As shown in FIG. 20, the signal supply path 1730 includes a first port 1734p connected to the feed port 1780, a second port 1731p connected to the first radiator 1710, and a second radiator It includes a third port (1732p) connected to (1720). As shown in FIG. 21, for example, a signal corresponding to a frequency band corresponding to a relatively low frequency in the millimeter wave band, such as 28 GHz, may be configured to be transmitted to the second port 1731p. This signal branching can be performed, for example, through impedance control according to the second open stub 1737b. Meanwhile, for example, a signal corresponding to a frequency band corresponding to a relatively high frequency, such as 45 GHz, may be configured to be transmitted to the third port 1732p. This signal branching can be performed, for example, through impedance control according to the first open stub 1737a. The frequency selection characteristic can be operated by matching the left and right open stubs (1737a, 1737b), and the isolation of each frequency cluster can be improved by this feeding network.

FIG. 22 shows a radiation pattern of a radiator array having an appropriate radiator spacing according to each frequency band. As shown in FIG. 22, for example, the appropriate distance between radiators to perform beamforming for a signal in the 24 GHz band may be 6.5 mm, 5.5 mm for the 28 GHz band, and 3.8 mm for the 40 GHz band. , a spacing of 3.2 mm may be appropriate for the 47.5 GHz band. FIG. 22 shows a radiation pattern according to an array of radiators arranged to have appropriate spacing between radiators in frequency bands of 24, 28, 40, and 47.5 GHz, respectively. As shown in FIG. 22, it can be confirmed that beam steering in the desired direction is appropriately observed.

On the other hand, Figure 23 shows the radiation pattern for a signal in the 24 GHz band in an radiator array with an radiator spacing of 3.2 mm. Although the appropriate radiator spacing for performing beamforming for signals in the 24 GHz band is 6.5 mm, when examining the radiation pattern when a 24 GHz band signal is emitted from an radiator array spaced at 3.2 mm, directivity deterioration is observed. You can confirm that it is. Additionally, FIG. 24 shows a radiation pattern for a signal in the 47.5 GHz band in an radiator array having an radiator spacing of 6.5 mm. As shown in FIG. 24, when examining the radiation pattern when a signal in the 47.5 GHz band is radiated from a radiator array spaced at 6.5 mm intervals, it can be seen that the beam pattern is deteriorated.

According to the antenna device or radiator module according to an embodiment of the present invention, a good radiation pattern can be secured in a plurality of frequency bands by allowing corresponding signals to be radiated from a radiator array having radiator spacing corresponding to each frequency cluster.

Figure 25 shows an exemplary configuration of a signal supply path for performing dual polarization in a stacked radiator module according to an aspect of the present invention. As exemplarily shown in FIG. 25, according to one aspect of the present invention, the stacked multi-band radiator module 1700 may be configured to perform dual polarization of vertical polarization and horizontal polarization. For example, the signal supply path 1730 includes a vertical polarization path 1730v that supplies signals for vertical polarization to each of the first and second radiators, and a signal for horizontal polarization to each of the first and second radiators. It may include a horizontal polarization path (1730h) supplying the signal.

The first radiator 1710 and the second radiator 1720 each have a vertical polarization port, and the vertical polarization path 1730v receives feed signals for vertical polarization for a plurality of frequency bands from a feed port for vertical polarization. , the vertically polarized feeding signal of the corresponding frequency band can be transmitted to the first radiator 1710 and the second radiator 1720, respectively, and the first radiator 1710 and the second radiator 1720 each have a horizontal polarization port. And the horizontal polarization path 1730h receives feed signals for horizontal polarization in a plurality of frequency bands from a feed port for horizontal polarization, and sends horizontal polarization feed signals in the corresponding frequency bands to the first radiator 1710 and the second radiator 1710. Each can be transmitted to the emitter 1720.

It should be understood that at least some of the technical features of the antenna device 1000 according to an embodiment of the present invention described above can also be implemented in the stacked multi-band radiator module 1700 according to an embodiment of the present invention.

Optically transparent multi-band emitter module

Figure 26 shows an exemplary configuration of an optically transmissive emitter module. As shown in FIG. 26, the radiator module is disposed in the light-transmissive area 2680 and has radiators 2610-1, 2610-2, 2620-1, and 2620-2 configured to have light transparency, thereby transmitting light. It can be implemented as a transparent emitter module 2600.

The radiators 2610-1, 2610-2, 2620-1, and 2620-2 may be configured to be transparent, for example, by being composed of a metal mesh. Therefore, by arranging the radiator in a light-transmitting area, such as a display or a glass window, it is possible to solve the limitation on the installation space of the radiator and achieve improved radiation performance. Such a light-transmissive radiator module can be used to implement a transparent antenna device, for example, AoD (Antenna on Display).

As shown in FIG. 26, a transparent radiator module 2600 according to one aspect may include a plurality of radiator arrays. For example, a first radiator array including first radiators 2610-1 and 2610-2 and a second radiator array including second radiators 2620-1 and 2620-2 may be provided.

For example, power may be supplied to the plurality of radiators by a signal supply path including the first signal supply path 2630-1 or the second signal supply path 2630-2. Such a configuration for power feeding may be placed, for example, in the power feeding area 2690. Unlike the light-transmitting area 2680, the power feeding area 2690 may be a non-transparent area and may be made of, for example, a flexible printed circuit board (FPCB), but is not limited thereto. For example, an embodiment in which a general PCB is placed adjacent to a transparent area 2680 such as a display panel as a power supply area 2690 is also possible.

Meanwhile, in the light-transmissive radiator module 2600 of the type shown in FIG. 26, the distance between the radiators 2610-1 and 2610-2 of the first radiator array and the radiator 2620-1 of the second radiator array , 2620-2), the distance between them is shown to be the same. However, as seen above, in order to perform beamforming for wireless signals of different frequency bands, it is necessary to appropriately arrange the spacing between radiators suitable for the corresponding frequencies.

According to an embodiment of the present invention, it is possible to implement a radiator module including a plurality of radiator arrays corresponding to different frequency bands as a light-transmissive radiator module. Figure 27 shows an exemplary configuration of a light-transmissive multi-band radiator module according to an embodiment of the present invention. Hereinafter, the light-transmissive multi-band radiator module 2700 according to an embodiment of the present invention will be described in more detail with reference to FIG. 27.

As shown in Figure 27, the optically transparent multi-band radiator module 2700 according to an embodiment of the present invention includes a first radiator 2710 corresponding to a first frequency cluster, and a second radiator 2710 corresponding to a second frequency cluster. It can be configured to radiate signals for a plurality of frequency bands by including an radiator 2720 and a signal supply path 2730. As shown in FIG. 27 , the first radiator 2710 and the second radiator 2720 may be disposed in the optically transmissive area 2780. The light transmissive area 2780 may be, for example, but is not limited to a display panel.

As described above with respect to the antenna device 1000 according to an embodiment of the present invention, the first radiator 2710 and the second radiator 2720 receive signals corresponding to different frequency bands and transmit radio signals accordingly. It may be configured to radiate. For example, the first radiator 2710 receives a feed signal for at least one frequency band included in the first frequency cluster and radiates the corresponding wireless signal, and the second radiator 2720 transmits the signal to the second frequency cluster. It is possible to receive a feeding signal for at least one included frequency band and radiate a corresponding wireless signal.

As illustratively shown in FIG. 27, the light-transmissive multi-band radiator module 2700 according to one aspect of the present invention may include a first radiator array and a second radiator array. The first radiator array includes a plurality of first radiators (2710-1, 2710-2, 2710-3, 2710-4) arranged at a first interval (d ₁ ), and the second radiator array includes a plurality of second radiators Emitters 2720-1, 2720-2, 2720-3, and 2720-4 may be included and arranged at a second spacing (d ₂ ) that is different from the first spacing (d ₁ ).

Here, the first interval is the interval between radiators for performing beam forming on a signal of at least one frequency band among the frequency bands included in the first frequency cluster, and the second interval is the frequency included in the second frequency cluster. It may be an interval between radiators for performing beam forming on a signal of at least one frequency band among the bands. Therefore, according to one aspect of the present invention, the optically transparent multi-band radiator module 2700 is provided with a first radiator array and a second radiator array having spacings corresponding to different frequency clusters to perform beam forming for each frequency band. It can be configured to perform.

Referring again to FIG. 27, a signal supply path 2730 is shown connecting a feed port that receives a signal from a control circuit and the first radiator and the second radiator. The signal supply path 1730 may supply power signals to the first radiator 2710 and the second radiator 2720, respectively. The first radiator array includes a plurality of first radiators (2710-1, 2710-2, 2710-3, 2710-4) arranged at a first interval (d ₁ ), and the second radiator array includes a plurality of second radiators Emitters (2720-1, 2720-2, 2720-3, 2720-4) are included and arranged at a second interval (d ₂ ) different from the first interval (d ₁ ), and a signal supply path 2730 for them is provided. It may also include a first signal supply path (2730-1) to a fourth signal supply path (2740-4). The first signal supply path (2730-1) connects the feed port and the first radiator (2710-1) and the second radiator (2720-1), and the second signal supply path (2730-2) connects the feed port and the second radiator (2720-1). The first radiator (2710-2) and the second radiator (2720-2) are connected, and the third signal supply path (2730-3) connects the feed port to the first radiator (2710-3) and the second radiator (2720-3). ), and the fourth signal supply path (2730-4) may be configured to connect the feed port and the first radiator (2710-4) and the second radiator (2720-4).

FIG. 28 is an exemplary diagram of the signal supply path of FIG. 27. 27 to 28, the signal supply path 2730 is configured to connect the first radiator 2710 and the second radiator 2720 with a feed port 2780 that receives a signal from the control circuit.

Similar to the antenna device 1000 according to an embodiment of the present invention, the signal supply path 2730 provided in the optically transparent multi-band radiator module 2700 according to an embodiment of the present invention is a power supply port 2780. Receive at least one of a signal for the first radiator and a signal for the second radiator through, supply the signal for the received first radiator to the first radiator 2710, and supply the signal for the received second radiator to It may be configured to supply to the second radiator 2720. More specifically, and not by way of limitation, for example, the control circuit may be configured to output both a feed signal corresponding to the first frequency cluster for the first radiator and a feed signal corresponding to the second frequency cluster for the second radiator. there is. The feed port 2780 may be configured to receive both signals for the first radiator and signals for the second radiator. Here, the signal supply path 2730 may transmit the signal for the first radiator to the first radiator 2710 and transmit the signal for the second radiator to the second radiator 2720 among the received signals.

As shown in FIG. 28, the signal supply path 2730 according to one aspect of the present invention includes a common line 2734 connected to the power supply port, and a first branch line 2731 for connecting the common line and the first radiator. and a second branch line 2732 for connecting the common line and the second radiator. The first branch line 2731 is connected to the first radiator 2710 through the first radiator connection portion 2731p, and the second branch line 2732 is connected to the second radiator 2720 through the second radiator connection portion 2732p. can be connected with

More specifically, and not by way of limitation, the signal supply path 2730 is configured to control a signal branch to the first branch line or the second branch line based on the impedance to the common line, the first branch line, and the second branch line. You can. For example, at least one of the first branch line 2731 or the second branch line 2737b may include at least one stub. In Figure 28, for example, a first open stub (1737a) and a second open stuff (2737b) are provided in the first branch line (2731), and a third open stub (1737c) and a second open stub (1737c) are provided in the second branch line (2732). The form in which the 4 open stub (2737d) is provided is shown as an example. Here, the signal supply path 2730 may be configured such that the impedance for the signal branch changes in response to changing at least one of the number, placement position, or length of the stubs. At least some of the configurations for signal branching of the antenna device 1000 according to an embodiment of the present invention described above are the signal supply path 2730 of the optically transparent multi-band radiator module 2700 according to an embodiment of the present invention. Of course, it can also be applied. For example, the signal supply path 2730 may have a branch element between the common line, the first branch line, and the second branch line, and the branch element may include a power divider, a ring hybrid coupler, It may include at least one of a Hybrid Coupler and a Directional Coupler, but is not limited thereto.

Meanwhile, according to one aspect of the present invention, the signal supply path 2730 may be disposed in the power feeding area 2790 adjacent to the light-transmissive area 2780. As previously observed, the power feeding area 2790 may be composed of, for example, a flexible printed circuit board (FPCB), but is not limited thereto, and other types of power feeding areas such as PCB may be formed. .

According to one aspect of the present invention, the optically transparent multi-band radiator module 2700 may be configured to operate as a dual polarization antenna of vertical polarization and horizontal polarization. FIG. 30 shows an exemplary configuration of a signal supply path for performing dual polarization in a light-transmitting radiator module according to an aspect of the present invention, and FIG. 31 is an exemplary side view of the signal supply path of FIG. 30. 30 to 31, the signal supply path 2730 according to an aspect of the present invention includes a vertical polarization path 2730v that supplies signals for vertical polarization to each of the first radiator and the second radiator, and It may include a horizontal polarization path 2730h that supplies signals for horizontal polarization to each of the first and second radiators.

The first radiator 2710 and the second radiator 2720 each have a vertical polarization port, and the vertical polarization path 2730v receives feed signals for vertical polarization for a plurality of frequency bands from a feed port for vertical polarization. , the vertically polarized feeding signal of the corresponding frequency band can be transmitted to the first radiator 2710 and the second radiator 2720, respectively, and the first radiator 2710 and the second radiator 2720 each have a horizontal polarization port. And the horizontal polarization path 2730h receives feed signals for horizontal polarization for a plurality of frequency bands from a feed port for horizontal polarization, and sends horizontal polarization feed signals in the corresponding frequency bands to the first radiator 2710 and the second radiator 2710. Each can be transmitted to the emitter 2720.

Meanwhile, according to one aspect of the present invention, the vertical polarization path 2730v and the horizontal polarization path 2730h may be disposed in different layers of the FPCB. At least one radiator connection of the vertical polarization path (2730v) and the horizontal polarization path (2730h) passes through a via to connect the radiator connections (2731vp, 2732vp) of the vertical polarization path (2730v) and the radiator of the horizontal polarization path (2730h). The connections (2731hp, 2732hp) can be configured to be located on the same layer of the FPCB.

For example, as exemplarily shown in FIGS. 30 and 31 , the vertical polarization path 2730v and the horizontal polarization path 2730h are disposed in different layers of the FPCB, with the first of the vertical polarization path 2730v The radiator connection portion 2731vp may be configured to pass through a via hole 2731vh formed in the middle layer of the FPCB and be located on the same layer as the first radiator connection portion 2731hp of the horizontal polarization path 2730h, and the vertical polarization path 2730v. ) of the second radiator connection portion 2732vp may be configured to pass through the via hole 2732vh formed in the middle layer of the FPCB and be located on the same layer as the second radiator connection portion 2732hp of the horizontal polarization path 2730h. Therefore, the vertical polarization path and the horizontal polarization path are spaced apart from each other and included on the FPCB, but the convenience of connection with the radiators can also be secured by placing a configuration for contact with the radiator on the same surface.

Referring again to FIG. 27, the first radiator 2710 and the second radiator 2720 of the optically transmissive multi-band radiator module 2700 according to an embodiment of the present invention have a power feeding area within the optically transmissive area 2780. It can be placed adjacent to (2790). In particular, for example, when the signal supply path 2730 is disposed in the power feeding area 2790, the ports for power feeding of the first radiator 2710 and the second radiator 2720 are in contact with the power feeding area 2790. , signal loss that may occur by providing transparent wiring in the light-transmissive area can be minimized.

As shown in FIG. 27, the optically transparent multi-band radiator module 2700 includes a plurality of first radiators (2710-1, 2710-2, 2710-3, 2710-4) arranged at first intervals. The array and a plurality of second radiators (2720-1, 2720-2, 2720-3, 2720-4) may further include a second radiator array arranged at a second interval different from the first interval, and such a device The first emitter array and the second emitter array may also be placed adjacent to the feeding area 2790 within the optically transmissive area 2780.

Here, according to one aspect, the first radiator array and the second radiator array may be configured to form one row, with the first radiators and the second radiators arranged alternately. For example, as shown in FIG. 27, the first radiator 2710-1, the second radiator 2720-1, the first radiator 2710-2, the second radiator 2720-2, and the first radiator A plurality of radiators including 2710-3, second radiator 2720-3, first radiator 2710-4, and second radiator 2720-4 may be arranged in a row in order.

In this configuration in which the first radiator and the second radiator are alternately arranged, the signal supply path 2730 may be provided corresponding to a pair between the first and second radiator disposed adjacently. As exemplarily shown in FIG. 27, the signal supply path 2730 corresponds to the first pair of the first radiator 2710-1 and the second radiator 2720-1 disposed adjacently. A first signal supply path (2730-1), a second signal supply path (2730-) corresponding to the second pair of the first radiator (2710-2) and the second radiator (2720-2) disposed adjacently. 2), a third signal supply path (2730-3) corresponding to the third pair of the first radiator (2710-3) and the second radiator (2720-3) arranged adjacently, the third signal supply path (2730-3) arranged adjacently It may include a fourth signal supply path (2730-2) corresponding to the fourth pair of the first radiator (2710-4) and the second radiator (2720-4).

Meanwhile, referring again to FIG. 27, since the spacing between radiators of the first radiator array and the second radiator array is different, the distance between the first radiator and the second radiator may gradually become narrower. Reflecting this, the positions of the second radiator connectors 2732p-1, 2732p-2, 2732p-3, and 2732p-4 provided in each signal supply path can be adjusted, as shown in FIG. 27. FIG. 29 shows the spacing between radiator connections of each of the plurality of signal supply paths of FIG. 27. As shown in FIG. 28, the signal supply path 2730 includes a first radiator connection portion 2731p and a second radiator connection portion 2732p. As shown in FIG. 29, the gap (g ₁ ) between the first radiator connection and the second radiator connection of the first signal supply path 2730-1 and the first radiator connection of the second signal supply path 2730-2 The gap (g ₂ ) between and the second radiator connection portion may be formed differently. In addition, the gap (g ₃ ) between the first and second radiator connections of the third signal supply path (2730-3) and the first and second radiator connections of the fourth signal supply path (2730-4) The gap (g ₄ ) can also be formed differently. As shown in FIGS. 27 and 29, for example, in an embodiment in which the spacing between radiators of the second radiator array is set to be narrower, the spacing between the first radiator connection and the second radiator connection of the signal supply path is, The signal supply path 2730-1 may be formed to become narrower as it moves toward the fourth signal supply path 2730-4.

Figure 32 is an exemplary diagram of a signal supply path arrangement for a light-transmissive area according to one aspect of the present invention. As exemplarily shown in FIG. 32, the signal supply path 3230 according to one aspect of the present invention may be configured to be disposed in the light-transmissive area 3280. Here, the signal supply path 3230 may be configured in the form of a mesh to have light transparency.

The optically transparent multi-band radiator module 3200 shown as an example in FIG. 32 also includes a first radiator array in which a plurality of first radiators (3210-1, 3210-2, 3210-3, and 3210-4) are arranged, and a plurality of It may include a second radiator array in which the second radiators 3220-1, 3220-2, 3220-3, and 3230-4 are arranged. Here, the first radiator array may be arranged to have a first gap (d ₁ ), and the second radiator array may be arranged to have a second gap (d ₂ ). The plurality of radiators may be connected to adjacent first and second radiators through signal supply paths (3230-1, 3230-2, 3230-3, and 3230-4) and then connected to the feed port. Since the first radiator array and the second radiator array are arranged to have different radiator spacing as the first spacing and the second spacing, the first signal supply path (3230-1) to the fourth signal supply path (3230-4) are They are configured to have different shapes. Each signal supply path can connect the first radiator and the second radiator according to changes in the gap between them.

The optically transparent multi-band radiator module 3200 as shown in FIG. 32 can also operate as a dual-polarization radiator module of vertical polarization and horizontal polarization, and the first radiator and the second radiator have a vertical polarization connection and a horizontal polarization connection, respectively. The signal supply path may also include a vertically polarized signal supply path and a horizontally polarized signal supply path for adjacent pairs of the first radiator (3210-1) and the second radiator (3220-1). The common line of the vertical polarization signal supply path is respectively connected to the vertical polarization signal wiring (3290v-1, 3290v-2, 3290v-3, 3290v-4) of the feeding area 3290, and the common line of the horizontal polarization signal supply path is connected to Can be connected to the horizontal polarization signal wires (3290h-1, 3290h-2, 3290h-3, 3290h-4) of the power supply area (3290), respectively.

When the signal supply path 3230 is disposed in the optically transparent area 3280 as shown in FIG. 32, the wiring of the power supply area 3290 only needs to provide a path for connecting the signal supply path 3230 to the power supply port. Accordingly, wiring in the power feeding area 3290 can be greatly simplified. For example, if it is impossible to utilize the FPCB as the wiring area (3290) and only a very limited space around the optically transparent area (3280) is available, the signal supply path (2730) must be optically transparent at the cost of some signal loss. It is also possible to design the region 3280 as a transparent mesh and simplify the wiring of the power supply region 3290.

Meanwhile, Figure 33 is an exemplary diagram showing the arrangement of a signal supply path in a light-transmissive area for a single polarization structure, and Figure 34 is an exemplary diagram showing an arrangement of a signal supply path in an optically transmissive area for a dual-polarization structure. The form (3300a) using an existing diplexer with a single polarization structure can be improved into a form (3300b) using a modified diplexer, and the form (3400a) using an existing diplexer with a dual polarization structure can be improved into a form using a modified die. Improvements can be made in the form of flexor utilization (3400b). That is, it is possible to improve the beam steering ability of the radiators in the two bands by changing the shape of the power feeding structure as shown in FIGS. 33 and 34. In order to vary the spacing between elements of the first radiator and the spacing between elements of the second radiator, it may be considered to design the structure and arrangement by modifying the diplexer as shown in FIGS. 33 and 34. Through this, the sidelobe level, which is one of the beam forming performance indicators of the radiator array, can be improved by reducing the array spacing of the second radiator (eg, a high frequency band radiator).

Figure 35 shows embodiments of an optically transmissive area signal supply path arrangement. Various types of diplexer modifications may be considered to reduce the spacing between radiators of the second radiator array, such as various exemplary signal supply path arrangements 3500a, 3500b, 3500c, and 3500d shown in FIG. 35.

It should be understood that at least some of the technical features of the antenna device 1000 according to an embodiment of the present invention described above can also be implemented in the optically transparent multi-band radiator module 1700 according to an embodiment of the present invention.

Although it has been described above with reference to the drawings and examples, it does not mean that the scope of protection of the present invention is limited by the drawings or examples, and those skilled in the art will recognize the present invention as set forth in the claims below. It will be understood that various modifications and changes can be made to the present invention without departing from its spirit and scope.

The present invention described above is explained based on a series of functional blocks, but is not limited to the above-described embodiments and the attached drawings, and various substitutions, modifications and changes are made without departing from the technical spirit of the present invention. It will be clear to those skilled in the art that this is possible.

The combination of the above-described embodiments is not limited to the above-described embodiments, and various types of combinations in addition to the above-described embodiments may be provided depending on implementation and/or need.

In the above-described embodiments, the methods are described based on flowcharts as a series of steps or blocks, but the present invention is not limited to the order of steps, and some steps may occur in a different order or simultaneously with other steps as described above. there is. Additionally, a person of ordinary skill in the art will recognize that the steps shown in the flowchart are not exclusive and that other steps may be included or one or more steps in the flowchart may be deleted without affecting the scope of the present invention. You will understand.

The above-described embodiments include examples of various aspects. Although it is not possible to describe all possible combinations for representing the various aspects, those skilled in the art will recognize that other combinations are possible. Accordingly, the present invention is intended to include all other substitutions, modifications and changes falling within the scope of the following claims.

10: first emitter
20: second emitter
100: substrate
200: signal supply path
400: control circuit

Claims (20)

An antenna device having a plurality of radiator arrays,
a first radiator array corresponding to a first frequency cluster;
a second radiator array corresponding to a second frequency cluster;
a control circuit that supplies a signal to at least one of the first radiator array and the second radiator array; and
a signal supply path connecting the control circuit and the first radiator array and the second radiator array; Including,
An antenna device having a plurality of radiator arrays.
According to claim 1,
The first radiator array,
Comprising a plurality of radiators arranged at a first interval,
The second radiator array,
Comprising a plurality of radiators arranged at a second interval different from the first interval,
An antenna device having a plurality of radiator arrays.
According to claim 2,
The first interval is,
A gap between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the first frequency cluster,
The second interval is,
A gap between radiators for performing beamforming on a signal in at least one frequency band among the frequency bands included in the second frequency cluster,
An antenna device having a plurality of radiator arrays.
According to claim 1,
The control circuit is,
Output at least one of a signal for the first radiator array and a signal for the second radiator array,
The signal supply path is,
Configured to supply a signal for the first radiator array output from the control circuit to the first radiator array, and to supply a signal for the second radiator array output from the control circuit to the second radiator array.
An antenna device having a plurality of radiator arrays.
According to claim 4,
The signal supply path is,
a common line connected to the control circuit;
a first branch line connecting the common line and the first radiator array; and
a second branch line connecting the common line and the second radiator array; Including,
An antenna device having a plurality of radiator arrays.
According to claim 5,
The common line operates in TEM (Transverse Electromagnetic) mode,
At least one of the first branch line and the second branch line operates in TM (Transverse Magnetic) mode or TE (Transverse Electric) mode,
An antenna device having a plurality of radiator arrays.
According to claim 5,
The first branch line is,
Comprising a first waveguide that passes signals for the first radiator array and does not pass signals for the second radiator array,
The second branch line is,
comprising a second waveguide that passes signals for the second radiator array and does not pass signals for the first radiator array,
An antenna device having a plurality of radiator arrays.
According to claim 5,
The signal supply path is,
Further comprising a filter circuit provided in at least one of the first branch line or the second branch line to filter at least one of a signal for the first radiator array or a signal for the second radiator array,
An antenna device having a plurality of radiator arrays.
According to claim 5,
The signal supply path is,
It further includes a switch disposed between the common line, the first branch line, and the second branch line and configured to selectively transmit a signal from the common line to either the first branch line or the second branch line. doing,
An antenna device having a plurality of radiator arrays.
According to claim 5,
The signal supply path is,
Further comprising a coupler or diplexer disposed between the common line, the first branch line, and the second branch line,
The coupler or diplexer,
Controlling a signal branch to the first branch line or the second branch line based on the radiator of the first radiator array, the radiator of the second radiator array, and the impedance of the coupler or diplexer,
An antenna device having a plurality of radiator arrays.
According to claim 10,
The coupler or diplexer,
the type of the coupler or diplexer;
The number of at least one stub provided in the coupler or diplexer; or
configured to cause the impedance to change in response to changing at least one of the placement positions of the stub,
An antenna device having a plurality of radiator arrays.
According to claim 1,
Each radiator included in the first radiator array,
A filtering antenna configured to filter signals in a frequency band that does not correspond to the first frequency cluster,
Each radiator included in the second radiator array,
A filtering antenna configured to filter signals in a frequency band that does not correspond to the second frequency cluster,
An antenna device having a plurality of radiator arrays.
According to claim 12,
The filtering antenna is,
Configured to change the filtered frequency band by changing the shape of the radiator,
An antenna device having a plurality of radiator arrays.
According to claim 13,
Each radiator included in the first radiator array has a first notch,
Each radiator included in the second radiator array has a second notch that is different from the first notch in at least one of size, shape, or arrangement position.
An antenna device having a plurality of radiator arrays.
According to claim 1,
The first frequency cluster and the second frequency cluster are,
Each containing one frequency band,
An antenna device having a plurality of radiator arrays.
According to claim 1,
The first frequency cluster and the second frequency cluster are,
Each comprising a plurality of frequency bands,
An antenna device having a plurality of radiator arrays.
According to claim 1,
The first frequency cluster is,
Including the 24 GHz band, 28 GHz band, and 37 GHz band,
An antenna device having a plurality of radiator arrays.
According to claim 17,
The second frequency cluster is,
Including the 43 GHz band, 47 GHz band, and 52 GHz band,
An antenna device having a plurality of radiator arrays.
According to claim 18,
a third emitter array corresponding to a third frequency cluster; It further includes,
The control circuit supplies a signal to at least one of the first radiator array, the second radiator array, and the third radiator array,
The signal supply path connects the control circuit and the first radiator array, the second radiator array, and the third radiator array,
The third frequency cluster includes a 60 to 73 GHz band, a 77 to 82 GHz band, and a 94 GHz band,
An antenna device having a plurality of radiator arrays.
According to claim 1,
The control circuit is,
RFIC for applying a signal to at least one of the first radiator array and the second radiator array; or
Comprising any one of a digital integrated circuit, a modem, or an AP control unit configured to control an RFIC that applies a signal to at least one of the first radiator array and the second radiator array,
An antenna device having a plurality of radiator arrays.