KR101517475B1 - multi band multi polarization patch antenna - Google Patents

multi band multi polarization patch antenna Download PDF

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Publication number
KR101517475B1
KR101517475B1 KR1020140031778A KR20140031778A KR101517475B1 KR 101517475 B1 KR101517475 B1 KR 101517475B1 KR 1020140031778 A KR1020140031778 A KR 1020140031778A KR 20140031778 A KR20140031778 A KR 20140031778A KR 101517475 B1 KR101517475 B1 KR 101517475B1
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KR
South Korea
Prior art keywords
band
low
pattern
radio signal
copier
Prior art date
Application number
KR1020140031778A
Other languages
Korean (ko)
Inventor
정용주
황상철
김승환
김강석
Original Assignee
(주)하이게인안테나
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Priority to KR1020140031778A priority Critical patent/KR101517475B1/en
Application granted granted Critical
Publication of KR101517475B1 publication Critical patent/KR101517475B1/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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • 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

Abstract

The present invention relates to a multi-band bi-polarized wave patch antenna capable of covering multiple bands with one radiation element and realizing MIMO with a bi-polarized wave design and uniformizing electrical characteristics to facilitate mass production. The antenna of the present invention includes: a radome that is coupled to a lower radome and an upper radome to form a space for mounting antenna components therein; A reflector for reflecting a radio wave radiated rearward from the radiating element, the radiating element having a hole for coupling the low-band parasitic element to the four corners, and a radiating plate supporting the radiating element; A feed for supplying a low-band radio signal and a high-band radio signal to a radiation element; And a copying machine pattern formed on the substrate. The patch antenna receives a low-band radio signal through the feed in a low-band copier pattern, radiates a low-band radio signal, receives a high-band radio signal in a high- And a radiating element for radiating the radio signal of FIG. In the antenna according to the present invention, a broadband stub is formed at a portion where the low band copier pattern and the high band copier pattern meet, thereby realizing a wide band characteristic with a length, a width, and a device interval between the stubs. And has a function of extending the length of the radiating element by coupling with the copying machine pattern and also acting as impedance matching.

Description

MULTI BAND MULTI POLARIZATION PATCH ANTENNA < RTI ID = 0.0 >

The present invention relates to a multi-band polarized-wave patch antenna, and more particularly, to a multi-band polarized-wave patch antenna that can cover multiple bands with one radiation element and can implement MIMO with a bi- polarized wave design, Band polarized wave patch antenna.

A commonly used high frequency antenna includes a dipole antenna, a monopole antenna, a patch antenna, a horn antenna, a parabolic antenna, a helical antenna, A slot antenna, and the like. These antennas are used in various forms according to communication distance and service area.

Essential resources of a wireless communication system include frequency, polarization, space, and direction. 2. Description of the Related Art Recently, due to an increase in the number of types of wireless communication services, frequency resources, which are the most important resources of wireless communication, have been exhausted. In addition, a multiple input multiple output (MIMO) Such MIMO communication technology is used to increase communication capacity by transmitting data through mutually independent multiple channels using multiple antennas.

Meanwhile, the mobile communication antenna is designed by applying a spatial diversity scheme or a polarization diversity scheme in order to alleviate the fading phenomenon. In the spatial diversity scheme, the transmission antenna and the reception antenna are spaced apart from each other by a predetermined distance. A dual-band dual polarized antenna is generally used by applying a polarization diversity scheme in a mobile communication system.

Dual band dual polarized antennas are used to transmit (or receive) two linearly polarized waves that are aligned at right angles to each other and can be aligned, for example, vertically and horizontally. However, in practical applications, it is very important to operate these antennas to align the polarized waves at +45 and -45 degrees with respect to vertical (or horizontal).

Dual band dual polarized antennas generally operate in two frequency bands spaced sufficiently apart from each other. An example of such a dual band dual polarized antenna is disclosed in U.S. Patent Application No. 2000-7010785 (titled: Dual Polarized Multiband Antenna), which is filed by Katline-Verke Kagee.

KR 10-2012-0088471 A KR 10-1335701 B1

An object of the present invention is to provide a multi-band bi-polarized wave patch antenna that can cover multiple bands with one radiation element and can realize MIMO with a bi-polarized wave design and can uniformize electrical characteristics to facilitate mass production.

According to an aspect of the present invention, there is provided an antenna comprising: a radome for coupling a lower radome and an upper radome to form a space for mounting antenna components therein; A reflector for reflecting a radio wave radiated rearward from the radiating element, the radiating element having a hole for coupling the low-band parasitic element to the four corners, and a radiating plate supporting the radiating element; A feed for supplying a low-band radio signal and a high-band radio signal to a radiation element; And a copying machine pattern formed on the substrate. The patch antenna receives a low-band radio signal through the feed in a low-band copier pattern, radiates a low-band radio signal, receives a high-band radio signal in a high- And a radiating element for radiating a radio signal of the radio signal.

In addition, the radiation device has a structure in which a low-band photocopier pattern is formed diagonally on a rectangular substrate, a high-band photocopier pattern is formed between low-band photocopier patterns to support a low band and a high band dual band, A broad band stub is formed at the portion where the band copier pattern and the high band copier pattern meet, thereby realizing the wide band characteristic at the stub length, width, and device interval between the bands.

The radiation device further includes a low-band parasitic element disposed on the upper side with a predetermined gap from the low-band photocopier pattern and coupled to the low-band photocopier pattern to extend the length of the radiation device and to perform impedance matching And the parasitic element is capable of moving the frequency band according to the position where the parasitic element is coupled to the low-band copying machine pattern.

The feed is implemented with a balun-incorporated PCB to enable + 45 ° and -45 ° feeds.

In the antenna according to the present invention, a broadband stub is formed at a portion where the low band copier pattern and the high band copier pattern meet, thereby realizing a wide band characteristic with a length, a width, and a device interval between the stubs. It has the function of extending the length of the radiation element by coupling with the pattern of the copying machine and improving the radiation characteristic by performing the impedance matching function and by using the coaxial cable surface covering to make the electrical characteristics uniform, have.

1 is an exploded perspective view illustrating a multi-band bi-polarized wave patch antenna according to the present invention,
FIG. 2 is a use state diagram of a multi-band bi-polarized wave patch antenna according to the present invention,
FIG. 3 is a perspective view illustrating a radiation element of a multi-band bi-polarized wave patch antenna according to the present invention,
FIG. 4 is a plan view showing a radiating element of a multi-band bi-polarized wave patch antenna according to the present invention,
FIG. 5 is a graph showing return loss characteristics of a multi-band bi-polarized wave patch antenna according to the present invention,
FIG. 6 is an 800-MHz band radiation pattern of a multi-band polarized-wave patch antenna according to the present invention,
FIG. 7 is a 1800 MHz band radiation pattern of a multi-band bi-polarized wave patch antenna according to the present invention,
FIG. 8 is a 2100 MHz band radiation pattern of a multi-band bi-polarized wave patch antenna according to the present invention,
9 is a 2500 MHz band radiation pattern diagram of a multi-band bi-polarized wave patch antenna according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

FIG. 1 is an exploded perspective view illustrating a multi-band bi-polarized wave patch antenna according to the present invention, and FIG. 2 is a state diagram illustrating the use of a multi-band bi-polarized wave patch antenna according to the present invention.

1, a multi-band bi-polarized wave patch antenna 100 according to the present invention includes a lower radome 110, a reflection plate 120, a radiating element support 130, a feed 140, a radiating element 150 And an upper radome 160. The radiating element 150 is composed of a low band radiation element 152 and a high band radiation element 154, a broad band stub 156, and a low band parasitic element 158.

1, a lower radome 110 and an upper radome 160 are coupled to each other to form a space for mounting antenna components therein. The reflector 120 is a square substrate having a feed connector connected thereto. A radiating element support 130 is fastened and a hole 124 for fastening the low band parasitic element 158 at four corners is formed and reflects the radio wave radiated backward from the radiating element forward. The feed 140 supplies a low band radio signal and a high band radio signal to the radiation element and the radiation element 150 receives the low band radio signal through the feed 140 to the low band copy pattern 152, Band radio signal, and transmits the high-band radio signal to the high-band copying machine pattern 154 to radiate a high-band radio signal. As shown in FIG. 2, the antenna 100 of the present invention can be attached to the support pipe 20 or attached to a wall or the like.

FIG. 3 is a perspective view illustrating a radiation element of a multi-band polarized-wave patch antenna according to the present invention, and FIG. 4 is a plan view illustrating a radiation element of a multi-band polarized-wave patch antenna according to the present invention.

As shown in FIG. 3 and FIG. 4, the radiation element 150 of the antenna according to the present invention is a patch antenna in which a copying machine pattern is formed on a substrate, and a low-band copying pattern 152 is formed diagonally on the rectangular substrate, And a high-band copying machine pattern 154 is formed between the low-band copying machine patterns 152 to support the low-band and high-band dual-band. For example, in the embodiment of the present invention, the low-band copier pattern 152 emits low-band radio signals ranging from 824 MHz to 894 MHz, and the highband copier pattern 154 emits high-band radio signals ranging from 1710 MHz to 2690 MHz To cover mobile communication CDMA, WCDMA, WiBro, WiFi, LTE and LTE-A services.

Also, the low-band parasitic element 158 disposed on the upper side with a predetermined interval from the low-band photocopier pattern 152 is coupled with the low-band photocopier pattern 152 to extend the length of the radiating element, And the frequency band can be shifted according to the position of coupling with the low-band copying machine pattern 152. A wide band stub 156 is formed at a portion where the low band photocopier pattern 152 and the high band photocopier pattern 154 face each other to realize a wide band characteristic with the length, width, and band gap of the stub 156.

The antenna according to the present invention uses a coaxial cable jacket to make the electrical characteristics uniform so that mass production is facilitated and a feed including a balun is implemented as a PCB to cross the antenna, -45 ° power supply is enabled.

FIG. 5 is a graph showing the return loss characteristic of the multi-band bi-polarized wave patch antenna according to the present invention, FIG. 6 is a radiation pattern pattern of 800 MHz band of the multi-band bi-polarized wave patch antenna according to the present invention, FIG. 8 is a radiation pattern pattern of a 2100 MHz band of a multi-band bi-polarized wave patch antenna according to the present invention, FIG. 9 is a cross-sectional view of a multi-band bi-polarized wave patch antenna according to the present invention, 2500 MHz band.

Referring to FIG. 5, the horizontal axis represents the frequency axis, the vertical axis represents the level, and the graph shown in FIG. 5 represents the dual band return loss of the low band and the high band. 6 to 9 are radiation pattern diagrams for respective frequency bands, and it is possible to confirm a change in the directivity toward the front and the characteristic change of the side lobe.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

110: lower radome 120: reflector
130: Radiation element support 140: Feed
150: radiation element 152: low-band copying machine pattern
154: high band copier pattern 156: stub
158: Low-band parasitic element 160: Upper radome

Claims (5)

A radome coupled to the lower and upper radars to form a space for mounting the antenna components therein;
A reflector for forming a hole for fastening the low-band parasitic element at four corners and reflecting the radio wave radiated backward from the radiating element forward;
A feed for supplying a low-band radio signal and a high-band radio signal to a radiation element; And
A patch type antenna in which a copying machine pattern is formed on a substrate, receives a low-band radio signal as a low-band copying pattern through the feed, radiates a low-band radio signal, A multi-band bi-polarized patch antenna comprising a radiating element for radiating radio signals. 2. The device of claim 1,
A low-band copier pattern is formed in a diagonal direction on a rectangular substrate, a high-band copier pattern is formed between low-band copier patterns to support a low band and a high band dual band, Wherein a broad band stub is formed at a portion where the band copier pattern faces, and a wide band characteristic is realized by a stub length, a width, and a device interval between the bands. 3. The device of claim 2, wherein the radiating element
And a low-band parasitic element disposed on the upper side with a predetermined interval from the low-band photocopier pattern and coupled to the low-band photocopier pattern to extend the length of the radiating element and to perform impedance matching. Multi - Band Polarization Patch Antenna. 4. The device of claim 3, wherein the low band parasitic element
And the frequency band can be shifted according to the position of coupling with the low band copier pattern. The method of claim 1,
A multi-band, bi-polar patch antenna characterized by a balun-incorporated PCB that enables feeding of + 45 ° and -45 °.
KR1020140031778A 2014-03-18 2014-03-18 multi band multi polarization patch antenna KR101517475B1 (en)

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Application Number Priority Date Filing Date Title
KR1020140031778A KR101517475B1 (en) 2014-03-18 2014-03-18 multi band multi polarization patch antenna

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2556156B (en) * 2016-09-02 2022-03-30 Taoglas Group Holdings Ltd Multi-band MIMO panel antennas
CN114730988A (en) * 2020-12-24 2022-07-08 深圳市大疆创新科技有限公司 Dual-polarized antenna assembly and single-hand-held control terminal
US11811135B2 (en) 2016-09-02 2023-11-07 Taoglas Group Holdings Limited Multi-band MIMO panel antennas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000029472A (en) * 1997-05-30 2000-05-25 구스벤트너 죠셉 Antenna system
KR20030010306A (en) * 2001-07-26 2003-02-05 (주)하이게인텔레콤 Flat antenna for selecting polarizer
KR20090093195A (en) * 2008-02-28 2009-09-02 한국전자통신연구원 Micro strip antenna comprised of two Slots
KR20130025571A (en) * 2011-09-02 2013-03-12 주식회사 이엠따블유 Multi antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000029472A (en) * 1997-05-30 2000-05-25 구스벤트너 죠셉 Antenna system
KR20030010306A (en) * 2001-07-26 2003-02-05 (주)하이게인텔레콤 Flat antenna for selecting polarizer
KR20090093195A (en) * 2008-02-28 2009-09-02 한국전자통신연구원 Micro strip antenna comprised of two Slots
KR20130025571A (en) * 2011-09-02 2013-03-12 주식회사 이엠따블유 Multi antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2556156B (en) * 2016-09-02 2022-03-30 Taoglas Group Holdings Ltd Multi-band MIMO panel antennas
US11811135B2 (en) 2016-09-02 2023-11-07 Taoglas Group Holdings Limited Multi-band MIMO panel antennas
CN114730988A (en) * 2020-12-24 2022-07-08 深圳市大疆创新科技有限公司 Dual-polarized antenna assembly and single-hand-held control terminal

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