KR20150011939A - Dual polarized radiating element and dual polarized antenna having the same - Google Patents

Dual polarized radiating element and dual polarized antenna having the same Download PDF

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Publication number
KR20150011939A
KR20150011939A KR1020130087171A KR20130087171A KR20150011939A KR 20150011939 A KR20150011939 A KR 20150011939A KR 1020130087171 A KR1020130087171 A KR 1020130087171A KR 20130087171 A KR20130087171 A KR 20130087171A KR 20150011939 A KR20150011939 A KR 20150011939A
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KR
South Korea
Prior art keywords
radiating element
radiation
radiating
branches
element unit
Prior art date
Application number
KR1020130087171A
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Korean (ko)
Inventor
정인하
박래혁
육태경
Original Assignee
엘에스전선 주식회사
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Priority to KR1020130087171A priority Critical patent/KR20150011939A/en
Publication of KR20150011939A publication Critical patent/KR20150011939A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/12—Resonant antennas
    • H01Q11/14—Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effect
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The present invention relates to a dual polarized radiating element assembly and a dual polarized antenna having the same. A dual polarized radiating element assembly according to the present invention is a dual polarized radiating element assembly for radiating dual polarized waves, comprising: a first radiating element unit having two pairs of radiating branches facing each other to produce a first polarized wave; Wherein the first radiating element unit and the second radiating element unit share at least one of the radiation branching points.

Description

[0001] The present invention relates to a dual polarized radiating element assembly and a dual polarized antenna having the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dual polarized radiation element assembly and a dual polarized antenna having the same, and more particularly, to a dual polarized radiation element assembly capable of significantly reducing the installation area of the radiation element assembly in a dual polarized antenna emitting double polarized waves, And more particularly to a dual-polarized antenna.

Current mobile communication is configured to enable communication or data communication through a mobile terminal having a communication function and a base station antenna. In this case, the communication antenna installed outdoors can be installed for each operator by predicting the coverage or communication load through a certain prediction. In recent mobile communication environment, not only commercialization of 2G and 3G, but also the commercialization of next generation 4G LTE system, various communication service frequency bands are mixed according to communication system or communication service providers and various countries, .

In order to meet the development trend of the next generation communication technology, development of a technology for a multi-band antenna that can provide a service in a multi-band frequency is required. However, since the multi-band antenna must provide services in a plurality of bands, the number of radiating elements provided therein increases. This contributes to impeding the downsizing and / or slimming of the antenna. Accordingly, there is a need to develop a radiating element assembly capable of providing a service at a multi-band frequency and further miniaturizing and slimming the antenna.

In order to solve the above problems, it is an object of the present invention to provide a dual polarized wave radiating element assembly capable of significantly reducing the installation area of a dual polarized wave radiating element assembly by providing a double polarized wave and significantly reducing the volume of the radiating element assembly It is an object of the present invention to provide a dual polarized radiation element assembly and a dual polarized antenna including the same.

It is an object of the present invention to provide a dual polarized wave radiating element assembly that emits dual polarized waves, comprising: a first radiating element unit having two pairs of radiation branches facing each other to produce a first polarized wave; And a second radiating element unit having two pairs of radiating branches opposed to each other, wherein the first radiating element unit and the second radiating element unit share at least one of the radiating branches. Assembly.

Here, the dual polarized wave radiating element assembly includes at least four radiating branches, and each radiating branch can simultaneously drive the first radiating element unit and the second radiating element unit.

The first radiating element unit and the second radiating element unit may further include a feeder for feeding the first feed signal and the second feed signal.

In this case, the length of each of the radiation branches may be 1/4 or more of the resonance frequency and may be 1/2 or less.

The above object of the present invention is also achieved by a dual polarized wave radiating element assembly for radiating double polarized waves, comprising at least four radiation branches and a pair of radiation branches adjacent to each other in the at least four radiation branches, And a pair of radiation branches opposed to the radiation branch are driven to the radiation element unit which generates the same polarization, and at the opposite ends of each radiation branch, the first feeding signal and the second feeding signal are supplied in the same phase or in opposite phases, Polarized radiation element assembly according to the present invention.

Here, each of the radiation branches may be simultaneously driven by a branch of the radiating element unit which forms different polarized waves. For example, each of the radiation branches may be driven by a common branch of a first radiating element unit generating a first polarized wave and a second radiating element unit generating a second polarized wave. In this case, the length of each of the radiation branches may be 1/4 or more of the resonance frequency and may be 1/2 or less.

It is another object of the present invention to provide a dual polarized antenna having at least one dual polarized radiating element assembly.

In the case where the dual polarization antenna is a single band antenna, the length of each radiation branch corresponds to 1/4 of the resonance frequency, and when the antenna is a dual band antenna, the length of each radiation branch is 1 / 4 and not more than 1/2.

According to the present invention having the above-described configuration, each radiating element that provides dual polarization can share the radiating branch with the radiating element having different polarizations, thereby simplifying the configuration of the radiating element assembly and further reducing its volume significantly.

Also, by reducing the volume of the radiating element assembly as described above, it is possible to reduce the installation area of the antenna including the radiating element assembly as compared with the conventional antenna. Further, in the case where the volume of the antenna is kept the same It is possible to cover the multi-band, thereby increasing the utilization.

1 is a perspective view of a radiating element assembly according to one embodiment,
2 is a perspective view showing a radiating element assembly of a dual polarized antenna,
Fig. 3 is a plan view of Fig. 2,
FIG. 4 is a schematic view of a case where a power supply signal is applied in FIG. 3,
5 is a plan view of a radiating element assembly according to another embodiment,
6 is a perspective view showing a multi-band antenna.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numerals designate like elements throughout the specification.

1 is a schematic diagram illustrating a radiating element assembly 100 of a dual polarized antenna 1000 according to one embodiment.

Referring to Figure 1, a dual polarized antenna 1000 includes a radiating element assembly 100 configured to generate dual polarized waves, and the radiating element assembly 100 includes at least a pair of radiating element units 102 and 104, Respectively. For example, the first radiating element unit 102 and the second radiating element unit 104 may be provided.

In this case, the pair of radiating element units 102 and 104 may be formed in a predetermined pattern implemented on a predetermined insulating sheet 10. The radiating element assembly 100 may have an insulating sheet 10 and a radiation pattern for forming at least a pair of radiating element units 102 and 104 on the upper surface of the insulating sheet 10 . The radiating element pair may be provided with a feeding part 20 for feeding an electric signal.

The at least one pair of radiating element units (102, 104) is a basic element of wireless communication. The at least one pair of radiating element units (102, 104) radiates an electric signal transmitted through the feeder 20 in the form of an electron beam, Converts it into electric power, and outputs the converted electric power to the power supply unit 20. FIG.

The dual polarized antenna (1000) includes at least a pair of radiating element units (102, 104) for implementing dual polarization, and each of the at least one pair of radiating element units (102, 104) As shown in FIG. Therefore, it becomes possible to transmit or receive two linearly polarized signals. As a result, the dual polarized antenna 1000 is configured such that the polarization direction is operable at an angle of 45 degrees.

First, the radiating element assembly 100 may be formed by forming a predetermined pattern on the insulating sheet 10. [ The insulating sheet 10 provides a space for mounting a predetermined pattern for forming at least one pair of radiating element units 102 and 104 and is generally manufactured by a printed circuit board (PCB) or a flexible printed circuit board (FPCB) do.

On the upper surface of the insulating sheet 10, a predetermined pattern for forming at least one pair of radiating element units 102 and 104 for radiating an electron beam may be provided. Specifically, the first radiating element unit 102 and the second radiating element unit 104, which are vertically arranged on the upper surface of the insulating sheet 10, may be provided. In this case, each individual radiating element unit 102, 104 may each comprise a pair of radiating elements. For example, the first radiating element unit 102 includes a first radiating element 110 and a third radiating element 130, and the second radiating element unit 104 includes a second radiating element 120, 4 radiating element (140).

Furthermore, each radiating element has a pair of radiating branches. That is, the first radiating element 110 has a pair of radiating branches 112 and 114, and the third radiating element 130 similarly has a pair of radiating branches 132 and 134. The second radiating element 120 and the fourth radiating element 140 also have a pair of radiating branches 122, 124, 142 and 144, respectively.

Here, the pair of radiation branches 112, 114, 132, and 134 forming the first radiating element unit 102 are supplied with a pair of feed signals by the feeder 20. Further, the pair of radiation branches 112, 114 forming the first radiation element 110 are arranged substantially parallel to the other pair of radiation branches 132, 134 forming the third radiation element 130 do. Similarly, the pair of radiating branches 122, 124 forming the second radiating element 120 are arranged approximately parallel to the remaining pair of radiating branches 142, 144 forming the fourth radiating element 140 do.

The length of each radiation branch has a length of? / 4 of the resonance frequency? At which the antenna operates. Therefore, the feeding unit 20 supplies the first feeding signal and the second feeding signal to the first radiating element unit 102 and the second radiating element unit 104, respectively, to transmit or receive two linearly polarized signals. .

However, in such a configuration, at least one pair of radiating element units are provided to generate two polarized signals, and each of the individual radiating elements included in the radiating element unit has a pair of radiating branches. As a result, in the above-described embodiment, a total of eight radiation branches are provided, and the length of each radiation branch has a length of? / 4 of the resonance frequency? At which the antenna operates, as described above. Therefore, by the number of the radiating branches forming the radiating element and the length of the radiating branch, the radiating element assembly requires a space capable of arranging eight radiating branches. Furthermore, the number of radiating element assemblies required in the case of a multi-band antenna, rather than simply a single-band antenna, increases, which increases the volume of the entire antenna, thereby hindering slimming and / or miniaturization of the antenna. Hereinafter, the structure of a radiating element assembly according to another embodiment for solving the above problems will be described with reference to the drawings.

FIG. 2 is a perspective view showing a configuration in which at least one radiating element assembly 200 according to another embodiment is provided in a reflector 1100 of a dual polarized antenna 1000, and FIG. 3 is a perspective view showing one radiating element assembly 200, respectively. Fig. 3 separately shows the first radiating element unit and the second radiating element unit in one radiating element assembly 200, for example, Fig. 3 (A) shows the first radiating element unit, and Fig. 3 B) shows a second radiating element unit.

Referring to Figures 2 and 3, the radiating element assembly 200 according to the present embodiment includes a first radiation (not shown) having two pairs of radiation branches 212, 214, 216, 218 facing each other to produce a first polarization And a second radiating element unit 260 having two pairs of radiating branches 212, 214, 216, 218 facing each other to produce a second polarization with the element unit 250, The element unit 250 and the second radiating element unit 260 may share at least one of the radiating branches 212, 214, 216, and 218.

That is, in the present embodiment, when the radiating element unit that generates double polarized waves is provided, the radiating element unit that generates one polarized wave shares at least one radiating element branch with another radiating element unit that generates different polarized waves . As a result, the radiating element unit shares the radiating branch with the other radiating element unit, so that it is not necessary to provide, for example, eight radiating branches in order to generate double polarized waves, . Thus, by reducing the number of radiating branches constituting the radiating element assembly, it is possible to reduce the installation area of the radiating element assembly, thereby enabling slimming and / or downsizing of the antenna. Hereinafter, a specific configuration will be described.

The radiating element assembly 200 may include at least four radiating branches 212,214, 216 and 218 and the four radiating branches 212,214, 216 and 218 may comprise a first And can be driven by the radiating element unit 250 and the second radiating element unit 260. The length of each of the radiation branches 212, 214, 216, and 218 may have a length corresponding to a quarter of the resonance frequency (?) At which the antenna is driven.

Fig. 4 is a schematic view schematically showing the flow of a feed signal when the above-described radiating element assembly 200 of Fig. 3 generates a polarization of +45 degrees and a polarization of -45 degrees.

4A, for example, the first radiating element unit 250 generating a polarization of +45 degrees has two pairs of radiation branches 212, 214, 216, and 218 facing each other, The pair of radiation branches 212 and 214 serve as the first radiation element 210 and the other pair of radiation branches 216 and 218 serve as the third radiation element 230. That is, by driving the first radiating element 210 and the third radiating element 230, it is possible to generate a polarized wave of +45 degrees.

4 (B), the second radiating element unit 260 generating polarized waves at -45 degrees has two pairs of radiation branches 212, 214, 216, and 218 facing each other, The radiation branches 214 and 216 serve as the second radiation element 220 while the other pair of radiation branches 212 and 218 serve as the fourth radiation element 240. That is, the second radiating element 220 and the fourth radiating element 240 can generate polarized waves of -45 degrees.

As a result, if the first branch 212 of the four radiating branches 212, 214, 216, and 218 is viewed as the first radiating unit 250, when the first branch 212 generates +45 degrees of polarization, The first radiating element 210 of the second radiating element unit 260 is driven by the fourth radiating element 210 of the second radiating element unit 260 while generating the polarized wave of -45 degrees. Similarly, the second branch 214 is also driven by the first radiating element 210 of the first radiating element unit 250 and the second radiating element 220 of the second radiating element unit 260, and the third branch 216 Is driven by the third radiating element 230 of the first radiating element unit 250 and the second radiating element 220 of the second radiating element unit 260 and the fourth branch 218 is driven by the first radiating element 220, The third radiating element 230 of the unit 250 and the fourth radiating element 240 of the second radiating element unit 260 are driven.

As a result, each of the radiation branches 212, 214, 216, and 218 can be driven simultaneously with the radiation wrench of the radiating element unit 250, 260 that forms different polarizations. That is, each of the radiation branches 212, 214, 216, and 218 may include a first radiation element unit 250 and a second polarized wave unit that generate a first polarized wave, for example, +45 degrees polarized wave, The first radiating element unit 250 and the second radiating element unit 260 are simultaneously driven by the second radiating element unit 260 generating the polarized wave and driven by the common branch of the first radiating element unit 250 and the second radiating element unit 260.

1, the radiating element assembly 200 according to FIG. 1 will have a total of eight radiating branches in order to produce double polarized waves, whereas in the present embodiment, It is possible to significantly reduce the installation area of the radiating element assembly 200 when the radiating element assembly 200 is installed as compared with the structure of FIG. 1 since the four radiating branches 212, 214, 216 and 218 are provided. .

The radiating element assembly 200 further includes a feeding part 290 for feeding the first feeding signal and the second feeding signal to the first radiating element unit 250 and the second radiating element unit 260 .

The power feeder 290 is located at a central portion of the radiowave device assembly 200 and supplies the first power feed signal and the second power feed signal to the first radiating element unit 250 and the second radiating element unit 260, .

In this case, the first radiating element unit 250 generates a first polarized wave, that is, +45 degrees polarized wave, and the second radiating element unit 260 generates a second polarized wave, that is, -45 degrees polarized wave . As described above, the plurality of radiation branches, for example, four radiation branches 212, 214, 216, and 218 constituting the radiating element assembly 200 include the first radiating element unit 250, And is simultaneously driven by the element unit 260. Therefore, in the case of implementing the dual polarization of +45 degrees and -45 degrees, the first feed signal for implementing polarization of +45 degrees and -45 degrees for the radiation branches 212, 214, 216, and 218, 2 feed signal should be supplied simultaneously.

To this end, the feeder 290 includes a pair of radiation branches 212, 214 adjacent to one another in the at least four radiation branches 212, 214, 216, 218 and the pair of radiation branches 212, 214 A first feed signal and a second feed signal at both ends of each of the radiation branches 212, 214, 216, and 218 so that the other pair of opposed radiation branches 216 and 218 are driven by a radiating element unit that generates the same polarization. In the same phase or opposite phase. Therefore, different feed signals are simultaneously supplied through both ends of one radiating branch to form polarization.

2 and 3, the radiating element assembly 200 may further include an auxiliary branch 300. For example, the auxiliary branch 300 may be provided along the outer edge of the insulating sheet 10, and the auxiliary branch 300 may increase the bandwidth of the antenna.

Each of the radiation branches 212, 214, 216, and 218 of the radiating element assembly 200 may have a bent shape as shown in the drawing. For example, each of the radiation branches 212, 214, 216, and 218 may have bent portions 213 at both ends that are bent at an angle greater than about 0 degrees and less than about 90 degrees. By providing the bent portion 213, the installation area of the radiation branches 212, 214, 216, and 218 can be reduced when the radiation branches 212, 214, 216, and 218 are provided. The auxiliary branch 300 described above may be provided in an edge area of the insulation sheet 10 when the radiation branch 212, 214, 216, or 218 is bent by the bent portion 213.

On the other hand, Fig. 5 shows the configuration of the radiating element assemblies 400, 500, 600 with various shapes of radiating branches.

5, the radiation branch 410 may have a bent shape bent at approximately 90 degrees (see FIG. 5A), or the radiation branch 510 may have a shape extending in a straight line with a predetermined length (See FIG. 5 (B)), or the radiation branch 610 may have a predetermined curved shape or an arc shape having a predetermined radius (see FIG. 5 (C)). The configuration of the feeding part in each of the above-described radiating element assemblies is similar to that of the above-described embodiment, and therefore repetitive description thereof will be omitted.

FIG. 6 illustrates a multi-band antenna 2000 having radiating element assembly 200 according to FIG. 2 described above.

6, the antenna 2000 may include an array of radiating element assemblies in a reflector 2100. For example, the first radiating element assembly 200 and the high- 2 radiating element assembly 700 as shown in FIG.

In this case, the first radiating element assembly 200 may have the configuration according to the above-described FIG. 2 or FIG. Since the configuration of the radiating element assembly 200 has already been described above, a repetitive description thereof will be omitted.

Meanwhile, the second radiating element assembly 700 includes a radiating element for radiating an electric signal of a high frequency band, and is disposed at a predetermined interval on the reflection plate 2100. In this case, in order to avoid interference with the first radiating element assembly 200, the second radiating element assembly 700 may include a plurality of first radiating element assemblies 200 and / 1 < / RTI > radiating element assembly 200 as shown in FIG.

In this case, the inner space of the first radiating element assembly 200 may be raised to avoid interference between the first radiating element assembly 200 and the second radiating element assembly 700. For example, the length of each of the radiating branches 212, 214, 216, and 218 constituting the first radiating element assembly 200 may be set to a length of 1/4 of a resonance frequency driven by the antenna 2000, 2 or less.

2, the length of each of the radiation branches 212, 214, 216, and 218 constituting the radiating element assembly 200 is approximately equal to one-quarter of the resonance frequency at which the antenna is driven And determines the length of each of the radiation branches 212, 214, 216, and 218 constituting the first radiation element assembly 200 in the case of the multi-band antenna to be 1 / 4 and less than 1/2.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

200 .. Radiation element assembly
212. First radiation branch
214 .. Second radiation branch
216 .. Third Radiation Branch
218 .. Fourth radiation branch
210. The first radiating element
220 .. The second radiating element
230 .. Third radiating element
240 .. Fourth radiating element
250. First radiation unit
260. Second radiation unit
290 .. Feeding part

Claims (10)

A dual polarized radiation element assembly for emitting dual polarized waves,
A first radiating element unit having two pairs of radiating branches facing each other to produce a first polarization; And
And a second radiating element unit having two pairs of radiation branches facing each other to generate a second polarized wave,
Wherein the first radiating element unit and the second radiating element unit share at least one of the radiating branches. The method according to claim 1,
Wherein the dual polarized radiating element assembly comprises at least four radiating branches and each radiating branch is simultaneously driven into the first radiating element unit and the second radiating element unit. The method according to claim 1,
Further comprising a feeder for feeding the first feed signal and the second feed signal to the first radiating element unit and the second radiating element unit. The method according to claim 1,
Wherein the length of each radiation branch is at least one quarter of the resonance frequency and no more than half of the resonance frequency. A dual polarized radiation element assembly for emitting dual polarized waves,
At least four radiation branches; And
A pair of radiation branches adjacent to each other in the at least four radiation branches and a pair of radiation branches opposed to the pair of radiation branches are driven to a radiation element unit generating the same polarization, And a feeder for feeding the first feed signal and the second feed signal in the same phase or opposite phase. 6. The method of claim 5,
Wherein each radiation branch is simultaneously driven to a branch of a radiating element unit that forms different polarizations. The method according to claim 6,
Wherein each radiation branch is driven by a common branch of a first radiating element unit generating a first polarized wave and a second radiating element unit generating a second polarized wave. 6. The method of claim 5,
Wherein the length of each radiating branch is at least ¼ of the resonant frequency and ½ or less of the resonant frequency. A dual polarization antenna comprising at least one dual polarized radiating element assembly according to any one of claims 1 to 8. 10. The method of claim 9,
Wherein the length of each radiation branch corresponds to a quarter of the resonance frequency when the dual polarization antenna is a single band antenna and the length of each radiation branch corresponds to 1/4 of the resonance frequency when the antenna is a dual- Is less than 1/2. ≪ / RTI >
KR1020130087171A 2013-07-24 2013-07-24 Dual polarized radiating element and dual polarized antenna having the same KR20150011939A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105244633A (en) * 2015-10-19 2016-01-13 深圳信息职业技术学院 Broadband different-frequency orthogonal dipole antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105244633A (en) * 2015-10-19 2016-01-13 深圳信息职业技术学院 Broadband different-frequency orthogonal dipole antenna

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