KR101743962B1 - Dual Polarization Patch Antenna - Google Patents

Dual Polarization Patch Antenna Download PDF

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KR101743962B1
KR101743962B1 KR1020160017651A KR20160017651A KR101743962B1 KR 101743962 B1 KR101743962 B1 KR 101743962B1 KR 1020160017651 A KR1020160017651 A KR 1020160017651A KR 20160017651 A KR20160017651 A KR 20160017651A KR 101743962 B1 KR101743962 B1 KR 101743962B1
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South Korea
Prior art keywords
port
radiator
line
feed
signal
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KR1020160017651A
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Korean (ko)
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KR20160100857A (en
Inventor
이승철
이상우
이다애
정용주
정종호
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주식회사 에이스테크놀로지
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H01Q1/46—Electric supply lines or communication lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/24—Polarising devices; Polarisation filters 
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave

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  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A dual polarized patch antenna is disclosed. The disclosed antenna includes: a first radiator; A second radiator spaced apart from the first radiator and arranged below the first radiator and arranged in the same plane as the first radiator; And a feeder line for supplying a feed signal to the first radiator and the second radiator, wherein a first port for coupling with the feeder line at the lower left corner and a lower right corner of the first radiator, And a third port and a fourth port for coupling with the feed line are formed at the upper right corner and the upper left corner of the two radiators, respectively, and the first port and the second port are formed through the feed line, A signal of a first polarized wave is fed to the third port, a signal of a second polarized wave is fed to the second port and the fourth port, and a phase difference between the first port and the third port, The phase difference between the four ports is 180 degrees.

Description

Dual Polarization Patch Antenna

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna, and more particularly, to a dual polarization patch antenna having a feed structure for compensating for a phase difference of opposite phases.

1 is a view showing the structure of a conventional antenna.

Referring to Figure 1, two radiators 100 and 200 are shown. Each radiator 100, 200 independently emits radiation, and each radiator provides a dual polarized signal.

In FIG. 1, the first radiator 100 is supplied with power through four ports 110, 120, 130, and 140 from a feeder line 300. Also, the second radiator is supplied with power from four ports 210, 220, 230, and 240 from the feed line.

A signal for a first polarized wave (for example, +45 degrees) is supplied to the first port 110 and the second port 120 from the first radiator 100 of the antenna shown in FIG. 1, A signal for a second polarized wave (for example, -45 degrees) signal is fed to the port 130 and the fourth port 140. [

A signal fed through the first port 110 and the second port 120 has a phase difference of 180 degrees and a signal fed through the third port 130 and the fourth port 140 has a phase difference of 180 degrees I have.

A signal for a first polarized wave (for example, +45 degrees) is fed to the fifth port 210 and the sixth port 220 from the second radiator 200 of the antenna shown in FIG. 1, A signal for a second polarized wave (for example, -45 degrees) signal is fed to the seventh port 230 and the eighth port 40. [

A signal fed through the fifth port 210 and the sixth port 220 has a phase difference of 180 degrees and a signal fed through the seventh port 230 and the eighth port 240 has a phase difference of 180 degrees I have.

As shown in FIG. 1, in the conventional antenna, eight ports are used for feeding two radiators, and the structure of the feed line is also very complicated.

One aspect of the present invention is to provide an antenna having a feed structure capable of correcting a phase difference of an opposite phase with a simple structure.

Another aspect of the present invention is to propose an antenna having a simple feed structure with fewer ports.

According to an aspect of the present invention, there is provided a semiconductor device comprising: a first radiator; A second radiator spaced apart from the first radiator and arranged below the first radiator and arranged in the same plane as the first radiator; And a feeder line for supplying a feed signal to the first radiator and the second radiator, wherein a first port and a second port for coupling with the feed line are formed at a lower left corner and a lower right corner of the first radiator, And a third port and a fourth port for coupling with the feed line are formed at the upper right corner and the upper left corner of the two radiators, respectively, and the phase difference between the first port and the third port, And the phase difference between the second port and the fourth port is 180 degrees.

According to the antenna having the feed structure of the present invention, there is an advantage that the phase difference in the opposite phase can be corrected with a simple structure.

1 is a view showing the structure of a conventional antenna.
2 illustrates a structure of an antenna according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a view illustrating a structure of an antenna according to an embodiment of the present invention.

Referring to FIG. 2, an antenna according to an embodiment of the present invention includes two radiators 400 and 500 and a feed line 600.

The two radiators 400 and 500 and the feeder line may be formed in the form of a pattern on the dielectric substrate. Here, various known methods such as metal bonding, conductive ink printing, etching, and the like may be used for patterning.

The first radiator 400 and the second radiator 500 have a rectangular patch shape, and each radiator receives power from the feeder line 600 independently.

The feed line 600 provides a feed signal to the first radiator 400 through two ports 410 and 420. The feed line 600 provides a feed signal to the second radiator 500 through two ports 510 and 520.

The feed line 600 provides signals from the two feed points 700 and 710 to the respective ports 410, 420, 510 and 520 of the radiators 400 and 500.

A signal from the first feed point 700 is provided through the first port 410 of the first radiator 400 and the first port 510 of the second radiator 500 through the feed line 600. The signal from the second feed point 710 is transmitted through the second port 420 of the first radiator 400 and the second port 520 of the second radiator 500 through the feed line 600 do.

(For example, a +45 degree polarized wave) signal is supplied from the first feeding point 700 and a second polarized wave (for example, a -45 degree polarized wave) signal is supplied from the second feeding point 710, Is provided.

In the conventional antenna, a feed signal is provided through four ports in order to provide a feed for correcting an inverse phase to each radiator. However, in the present invention, a feed signal is provided through only two ports to each radiator, do.

The first radiator 400 and the second radiator 500 are arranged vertically and the first radiator 400 and the second radiator 500 have the same shape.

A first port 410 is coupled to the lower left corner of the first radiator 400, and a second port 420 is coupled to the lower right corner of the first radiator 400. The first port 410 is provided with a feed signal for a first polarized wave (for example, +45 degrees) and the second port 420 is provided with a feed signal for a second polarized wave (e.g., -45 degrees) Is provided.

Conventionally, two ports are used for feeding the first polarization signal and the second polarization signal. However, according to the study of the present inventor, when a feed port is connected to the lower left and lower right, reverse phase correction can be performed using only two ports The point was studied.

The second emitter 500 is provided with a power supply signal through the third port 510 and the fourth port 520 and the third port 510 is provided with a first polarized wave And a signal for a second polarized wave (for example, -45 degrees) is fed to the fourth port 520.

The feed line 600 includes a first polarization line portion 600a connected to the first feed point 700 and a second polarization line portion 600b connected to the second feed point 710. [

The first polarized wave line portion 600a is branched at a predetermined point a and divided into two line portions and the first branched line 600a1 of the first polarized wave is divided into a first port 410 of the first radiator 400 And the second branched line 600a2 of the first polarized wave provides a feed signal to the third port 510 of the second radiator 500. [

The second polarized wave line portion is separated into two line portions at a predetermined point b and the second branched line 600b1 of the second polarized wave provides a feed signal to the second port 420 of the first radiator 410, The second branching line 600b2 of the second polarized wave provides a feed signal to the fourth port 520 of the second radiating element 500. [

According to a preferred embodiment of the present invention, the first and second ports of each radiator are provided with feed signals having opposite phases. This can be achieved by varying the length of the electric path fed to each port from the branch point.

The first branching line 600a1 and the second branching line 600a2 of the first polarized wave branched at the branching point a in the first polarization branching line portion 600a have different lengths. Specifically, the first branching line 600a1 and the second branching line 600a2 have different lengths, The phase difference according to

Figure 112016015116577-pat00001
The length is set.

The first branching line 600b1 and the second branching line 600b2 of the second polarized wave branched at the branching point b in the second polarization branching line portion 600b have different lengths. Specifically, the first branching line 600b1 and the second branching line 600b2 have different lengths, The phase difference according to

Figure 112016015116577-pat00002
The length is set.

A signal having a phase difference of 180 degrees with respect to the first port 410 and the third port 510 is supplied to the second port 420 and the fourth port 520, A signal with a phase difference is fed.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

Claims (5)

A first radiator;
A second radiator spaced apart from the first radiator and arranged below the first radiator and arranged in the same plane as the first radiator; And
And a feed line for providing a feed signal to the first radiator and the second radiator,
A first port and a second port for coupling with the feed line are formed at the lower left corner and the lower right corner of the first radiator, respectively, and a first port and a second port are formed at the upper left corner and the upper left corner of the second radiator, A third port and a fourth port for coupling are formed, respectively,
A signal of a first polarized wave is fed to the first port and the third port through the feed line and a signal of a second polarized wave is fed to the second port and the fourth port, And the phase difference between the second port and the fourth port is 180 degrees. The method according to claim 1,
Wherein the feed line includes a first polarization line portion connected to a first feed point for providing a first polarization signal and a second polarization line portion connected to a second feed point for providing a second polarization signal. Polarized patch antenna. 3. The method of claim 2,
Wherein the first polarization line section includes a first branching line of a first polarization providing a feed signal to the first port at a predetermined branch point and a second branching preference of a first polarization providing a feed signal to the third port, Wherein the dual-polarized patch antenna comprises: The method of claim 3,
Wherein the second polarization line section includes a first branch line of a second polarized wave that provides a feed signal to the second port at a predetermined branch point and a second branch line of a second polarized wave that provides a feed signal to the fourth port Wherein the dual-polarized patch antenna comprises: The method of claim 3,
Wherein a phase difference according to a distance between the first branching line and the second branching line of the first polarization is 180 degrees and a phase difference according to a distance between the first branching line and the second branching line of the second polarization is 180 degrees. Polarized patch antenna.





KR1020160017651A 2015-02-16 2016-02-16 Dual Polarization Patch Antenna KR101743962B1 (en)

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KR20150023613 2015-02-16
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021251735A1 (en) * 2020-06-08 2021-12-16 삼성전자 주식회사 Antenna structure and electronic device comprising same

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Publication number Priority date Publication date Assignee Title
KR101839452B1 (en) * 2016-11-24 2018-03-16 주식회사 에이스테크놀로지 Rada array antenna
WO2021085919A1 (en) * 2019-10-28 2021-05-06 동우화인켐 주식회사 Antenna structure, and antenna array and display device comprising same
KR20210050435A (en) 2019-10-28 2021-05-07 동우 화인켐 주식회사 Antenna structure and display device including the same
KR102203179B1 (en) 2019-12-30 2021-01-14 한국과학기술원 Dual Polarization Antenna with High Isolation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004096286A (en) 2002-08-30 2004-03-25 Mitsubishi Electric Corp Array antenna device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004096286A (en) 2002-08-30 2004-03-25 Mitsubishi Electric Corp Array antenna device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021251735A1 (en) * 2020-06-08 2021-12-16 삼성전자 주식회사 Antenna structure and electronic device comprising same

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