WO2012050258A1 - Multiband omnidirectional antenna - Google Patents

Multiband omnidirectional antenna Download PDF

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Publication number
WO2012050258A1
WO2012050258A1 PCT/KR2010/007680 KR2010007680W WO2012050258A1 WO 2012050258 A1 WO2012050258 A1 WO 2012050258A1 KR 2010007680 W KR2010007680 W KR 2010007680W WO 2012050258 A1 WO2012050258 A1 WO 2012050258A1
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Prior art keywords
radiation patch
radiating element
frequency radiation
antenna
low frequency
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PCT/KR2010/007680
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French (fr)
Korean (ko)
Inventor
김용재
김대성
김경진
이용진
Original Assignee
주식회사 선우커뮤니케이션
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Publication of WO2012050258A1 publication Critical patent/WO2012050258A1/en

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    • 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
    • H01Q19/12—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 wherein the surfaces are concave
    • H01Q19/17—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 wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • 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
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths

Definitions

  • the present invention relates to omnidirectional omni antennas, and more particularly, to miniature omni antennas designed to have wideband and multi-band characteristics.
  • an antenna using an inverted f structure or a monopole antenna has been mainly used.
  • the inverse F omni antenna is a structure formed by bending a dipole element in an inverted F shape, which has an advantage of reducing the antenna scale as compared with a conventional dipole.
  • the shape of the device itself is asymmetrical with respect to the feed point, the gain flatness is lower than that of the omni antenna using the monopole device.
  • the monopole omni antenna may be slightly advantageous in terms of gain flatness in symmetrical structure.
  • the monopole structure has a problem that the frequency band is small because it only resonates at a single frequency.
  • a method of implementing the broadband a method including a monopole device corresponding to each frequency, a power feeding line designed on a dielectric substrate, and an impedance matching circuit may be added.
  • problems such as complicated design and processing, a very large antenna size, and a cost increase have occurred.
  • the present applicant proposes an antenna for widening the bandwidth, including a single monopole device vertically installed on the ground plate and an impedance matching device disposed in a form surrounding the device through Patent Publication No. 2003-93146. It was. However, even in this case, due to the limitation of the single monopole itself, the problem that the frequency band is actually small still remains, so there is a problem that more complicated design is needed to overcome this.
  • the present applicant has developed an antenna that realizes good broadband and multiband with a relatively simple structure, and is an omni antenna disclosed in Patent No. 946623.
  • the element part 5 of the disclosed antenna 1 includes a small diameter first sleeve 3 and a large diameter second sleeve 4 spaced apart from each other with an insulating separator 2 interposed therebetween.
  • the sleeves 3 and 4 are assembled in such a manner that the upper and lower ends are disposed adjacent to each other on the separator 2.
  • reference numeral 6 denotes a reflecting plate disposed below the radiating element portion 5
  • reference numeral 7 denotes a power supply connector connected to supply power to the radiating element portion 5.
  • the second sleeve 4 is coupled with the first sleeve 3 to obtain an effect of increasing the length of the radiating element in the low frequency band.
  • the antenna 1 realizes good broadband and multiband with a relatively simple structure without a complicated design.
  • the present invention is proposed to solve the problems of the conventional omni antenna described above.
  • An object of the present invention is to provide a multi-band omni antenna that maintains the same level of electrical characteristics as compared to the conventional omni antenna, but by greatly simplifying the structure, thereby improving the assembly process and cost structure.
  • the omni antenna according to the invention is:
  • a radiating element unit integrally including a feeding part forming a center of the bending plate and a low frequency and high frequency radiation patch formed upwardly bent at one side and the other side of the feeding part;
  • a reflector disposed below the radiating element portion to reflect a signal radiated from the radiating element portion
  • the low frequency radiation patch and the high frequency radiation patch are each made up of a pair of patches that are bent upwards to face each other.
  • the low frequency radiation patch or high frequency radiation patch has a hole (hole) or slot (slot) formed to widen the bandwidth.
  • the radiating element portion includes a feeding part and a low frequency radiation patch and a high frequency radiation patch of the monopole type.
  • these antenna elements are not provided and assembled separately, but simply manufactured using only one bending plate.
  • the antenna of the present invention is extremely simple compared to the conventional omni antenna without loss of electrical characteristics, thereby having an excellent effect of improving the assembly process and cost structure.
  • 1 is a view showing the configuration of a conventional omni antenna.
  • FIG. 2 is a perspective view of an omni antenna according to the present invention.
  • FIG. 3 is a cross-sectional view taken along the line A-A of FIG.
  • FIG. 4 is an exploded view of the radiating element part of FIG. 2;
  • 5 is a standing wave ratio graph of the omni antenna according to the present invention.
  • FIG. 6 is a pattern diagram in a low frequency band of the omni antenna according to the present invention.
  • FIG. 7 is a pattern diagram in the high frequency band of the omni antenna according to the present invention.
  • FIG. 8 is a pattern diagram in the high frequency band of the conventional omni antenna of FIG.
  • an omni antenna according to an embodiment of the present invention is denoted by reference numeral 10.
  • the omni antenna 10 of the present invention includes a radiating element portion 11, a reflecting plate 12, and a power feeding connector 13.
  • a radome of a type for covering and protecting the radiating element part 11 may be mounted on the reflecting plate 12.
  • the radiating element part 11 includes a feed part 14 providing a center of a bending plate, a low frequency radiation patch 15 formed at one side and the other edge of the feed part 14 and upwardly bent, and a high frequency radiation.
  • the patch 16 is integrally formed.
  • the low frequency radiation patch 15 and the high frequency radiation patch 16 each feed the feeder 14 to prevent the radiation patches 15, 16 from lengthening or increasing the antenna scale in order to obtain desired antenna characteristics. It consists of a pair of patches 15a-15b and 16a-16b which are bent upwards toward the center to face each other.
  • the bent plate is a thin metal plate, and the patches 15a-15b, which are symmetrically extended at the top, bottom, left, and right edges of the rectangular feed portion 14 and the feed portion 14 at the center thereof, 16a-16b) integrally, cut in a cross (+) shape as a whole.
  • a mounting hole 17 for fixing the bent plate is formed at the center of the feeding part 14, and a feeding connector 13 installed through the reflecting plate 12 is fitted into the mounting hole 17. .
  • each of the patches 15a, 15b, 16a, and 16b is bent upward, wherein a relatively long pair 15a-15b of the symmetrical patches 15a-15b and 16a-16b faces the low frequency radiation patch.
  • 15, short pairs 16a-16b face each other to form a high frequency radiation patch 16.
  • Reference numeral 18 denotes a "c" type bridge structure designed to protrude from the end of the low frequency one side patch 15a on the bent plate.
  • the radiating element part 11 is not provided with each of the elements 14, 15, and 16 separately and may be simply manufactured by using only one bending plate.
  • the bridge 18 directly connects the bending and opposing low frequency patches 15a-15b so that the full length of the low frequency radiation patch 15 is sufficiently extended.
  • the low frequency radiation patch 15 is described as including a bridge 18 extending from the end of one patch 15a and connected to the end of the other patch 15b.
  • the radiating element section 11 has a configuration for extending and adjusting each frequency bandwidth.
  • the radiation patches 15 and 16 have holes 19 and 20 or slots formed to extend each frequency bandwidth.
  • the holes 19 of the low frequency radiation patch 15 use those formed between the bridges 18 spaced on both sides.
  • the radiation patches 15 and 16 also have one or more bend lines 21 for adjusting according to optimum frequency conditions.
  • the shape and number of the bend lines 21 are not limited. Accordingly, the radiation patches 15 and 16 may be partially bent to find and adjust the optimal state while converting angles and shapes.
  • the reflecting plate 12 is a conventional ground reflecting plate made of a circular or rectangular plate, and is disposed in a plane below the radiating element part 11 to reflect the RF signal radiated from the radiating element part 11.
  • the feed connector 13 is also a conventional antenna connector including a feed core wire. Meanwhile, in the present invention, the radiating element part 11 and the reflecting plate 12 are organically coupled by the feed connector 13 penetrating the reflecting plate 12.
  • the power supply connector 13 is installed through the center of the reflector plate 12 and the end of the core wire is fitted into and fixed to the power supply unit 14 mounting hole 17 of the radiating element part 11.
  • the radiating element portion 11, the reflecting plate 12, and the power feeding connector 13 are organically coupled to each other, thereby completing the omni antenna 10 of the present invention.
  • each of the patches 15a, 15b, 16a, and 16b constituting the low frequency radiation patch 15 and the high frequency radiation patch 16 is a power supply connector 13 penetrating through the reflector plate 12 in a power feeding method. And a power supply directly through the central power supply unit 14 in contact therewith. Therefore, stable and excellent power supply can be achieved.
  • the omni antenna 10 of the present invention is one bent plate to enable simultaneous and simple fabrication of high frequency band and low frequency band on a similar scale as the conventional antenna 1 of the applicant disclosed in FIG. By using to form the radiating element portion (11).
  • the low frequency band is radiated from the low frequency radiation patch 15 of the radiating element section 11 and the high frequency band is radiated from the high frequency radiation patch 16, thereby enabling wideband and multiband.
  • the omni antenna 10 of the present invention is Cellular: 824 to 894 MHz, GSM: 880 to 960 MHz in the low frequency band (15.25% bandwidth), PCS: 1710 to 1870 MHz, IMT-2000 (WCDMA) in the high frequency band (44.89% bandwidth) : 1885 ⁇ 2170MHz, Wibro: 2300 ⁇ 2390MHz, ISM: 2400 ⁇ 2500MHz, SDMB: 2630 ⁇ 2655MHz, Wimax: 2500 ⁇ 2700MHz, etc. It was developed for the purpose of the antenna that can be effectively used, as referred to in FIGS. Likewise, good pattern and gain characteristics were shown in each band.
  • FIG. 8 is a pattern diagram showing the characteristics of the conventional antenna 1 of the present applicant, and when compared with FIG. 7, it can be seen that electrical characteristics of the same degree are shown.
  • the omni antenna 10 of the present invention has no shortcomings in comparison with conventional antennas, and has an excellent effect of improving the assembly process and cost structure by having an extremely simplified structure.

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  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

The present invention relates to a small omnidirectional antenna designed to have broadband and multiband properties. The omnidirectional antenna includes a radiating element part, a reflective plate, and a feeding connector. The radiating element part includes a feeder constituting the center of a bent plate, and low-frequency and high-frequency radiation patches bent upward from either side of the feeder. Here, the feeder and the low-frequency and high-frequency radiation patches may be integrated with each other to constitute the radiating element part. According to the present invention, the radiating element part may be simply manufactured using only one bent plate. Thus, according to the present invention, the omnidirectional antenna may be significantly simplified in structure to improve the assembly process and cost structure of the process for manufacturing the omnidirectional antenna.

Description

멀티밴드 옴니 안테나Multiband Omni Antenna
본 발명은 무지향성 옴니 안테나에 관한 것으로, 특히 광대역 및 다중대역(Multi-Band) 특성을 갖도록 설계된 소형의 옴니 안테나에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to omnidirectional omni antennas, and more particularly, to miniature omni antennas designed to have wideband and multi-band characteristics.
건물의 내부 또는 지하 시설의 천장이나 벽면 등에 취부할 수 있는 소형의 무지향성 옴니 안테나로서, 종래에는 역에프 구조를 이용한 안테나 또는 모노폴 구조의 안테나가 주로 사용되어 왔다.As a small omni-directional omni antenna that can be mounted on a ceiling or a wall of an interior or underground facility of a building, an antenna using an inverted f structure or a monopole antenna has been mainly used.
먼저, 상기 역에프 옴니 안테나는 다이폴 소자를 역에프형으로 절곡하여 형성한 구조로써 통상의 다이폴을 이용한 것에 비하여 안테나 규모를 줄일 수 있다는 장점이 있는 것이다. 그러나 소자의 형태 자체가 급전점을 기준으로 하여 비대칭인 관계로, 모노폴 소자를 이용한 옴니 안테나에 비하여 이득 평탄도가 떨어지는 단점이 있다.First, the inverse F omni antenna is a structure formed by bending a dipole element in an inverted F shape, which has an advantage of reducing the antenna scale as compared with a conventional dipole. However, since the shape of the device itself is asymmetrical with respect to the feed point, the gain flatness is lower than that of the omni antenna using the monopole device.
다음, 모노폴 옴니 안테나는 대칭 구조상 이득 평탄도면에서는 조금 유리할 수 있다. 그러나 모노폴 구조에서는 단일 주파수에서만 공진하기 때문에 주파수 대역이 작다는 문제가 있다. 여기에 광대역화를 구현하는 방법으로는 각 주파수에 대응하는 모노폴 소자들을 모두 구비하고, 유전체 기판에 급전라인을 설계하여 급전하는 한편, 임피던스 매칭 회로를 추가하는 등의 방법이 사용되기도 하였다. 그러나 이 경우에는 설계 및 가공이 복잡한 문제, 안테나 규모가 매우 커지는 문제, 비용이 상승되는 문제 등이 발생하였다.Next, the monopole omni antenna may be slightly advantageous in terms of gain flatness in symmetrical structure. However, the monopole structure has a problem that the frequency band is small because it only resonates at a single frequency. As a method of implementing the broadband, a method including a monopole device corresponding to each frequency, a power feeding line designed on a dielectric substrate, and an impedance matching circuit may be added. However, in this case, problems such as complicated design and processing, a very large antenna size, and a cost increase have occurred.
이에 본 출원인은 특허공개 제2003-93146호를 통하여 그라운드판 상에 수직으로 설치되는 단일 모노폴 소자와, 상기 소자를 둘러싸는 형태로 배치되는 임피던스 정합소자를 포함하여, 광대역화를 도모한 안테나를 제안하였다. 그러나 이 경우에도 단일 모노폴 자체의 한계 때문에 실제로는 주파수 대역이 작다는 문제가 여전히 남아 있으므로, 이를 극복하기 위한 복잡한 설계가 더 필요하게 되는 문제가 있었다.Accordingly, the present applicant proposes an antenna for widening the bandwidth, including a single monopole device vertically installed on the ground plate and an impedance matching device disposed in a form surrounding the device through Patent Publication No. 2003-93146. It was. However, even in this case, due to the limitation of the single monopole itself, the problem that the frequency band is actually small still remains, so there is a problem that more complicated design is needed to overcome this.
그리하여 본 출원인은 비교적 간단한 구조로써 양호한 광대역 및 다중대역을 실현하는 안테나를 개발하였는데, 특허등록 제946623호에 개시된 옴니 안테나가 그것이다. 도 1을 참조하면, 개시된 안테나(1)의 소자부(5)는 절연 세퍼레이터(2)를 사이에 두고 이격 배치되는 소구경 제1슬리브(3)와 대구경 제2슬리브(4)를 포함한다. 그리고 이때 각 슬리브(3,4)는 세퍼레이터(2) 상에서 각 상·하단부가 서로 인접하게 배치되는 방법으로 조립된다.Thus, the present applicant has developed an antenna that realizes good broadband and multiband with a relatively simple structure, and is an omni antenna disclosed in Patent No. 946623. Referring to FIG. 1, the element part 5 of the disclosed antenna 1 includes a small diameter first sleeve 3 and a large diameter second sleeve 4 spaced apart from each other with an insulating separator 2 interposed therebetween. In this case, the sleeves 3 and 4 are assembled in such a manner that the upper and lower ends are disposed adjacent to each other on the separator 2.
도면에서 부호 6은 상기 방사소자부(5)의 하부에 배치되는 반사판이고, 부호 7은 상기 방사소자부(5)에 전력을 공급하기 위하여 연결되는 급전 컨넥터이다.In FIG. 6, reference numeral 6 denotes a reflecting plate disposed below the radiating element portion 5, and reference numeral 7 denotes a power supply connector connected to supply power to the radiating element portion 5.
이 구조에서, 상기 제2슬리브(4)는 제1슬리브(3)와 커플링(coupling) 연결되어 저주파수 대역에서 방사소자의 길이가 늘어난 효과를 얻는 것이다. 종래의 것에 비하면 이 안테나(1)가 복잡한 설계도 없이 비교적 간단한 구조로 양호한 광대역 및 다중대역을 실현하는 것은 사실이다.In this structure, the second sleeve 4 is coupled with the first sleeve 3 to obtain an effect of increasing the length of the radiating element in the low frequency band. Compared with the conventional one, it is true that the antenna 1 realizes good broadband and multiband with a relatively simple structure without a complicated design.
그러나 필요적으로 세퍼레이터(2)와 소구경 제1슬리브(3) 및 대구경 제2슬리브(4) 등의 부품들을 개별적으로 구비하여야 하는 문제, 각 요소들을 정해진 규칙에 따라 조립하여야 하는 문제, 특히 상·하 슬리브(3,4)가 세퍼레이터(2) 상에서 일정 부분 서로 중첩되도록 배치해야 하는 문제들이 수반되어 있기 때문에, 구조의 단순화 측면에서 그 효과가 아주 뛰어나다고는 할 수 없다.However, it is necessary to separately provide parts such as the separator 2, the small diameter first sleeve 3 and the large diameter second sleeve 4, and the problem of assembling the elements according to a predetermined rule, in particular, Since the lower sleeves 3 and 4 have to be arranged so that the lower sleeves 3 and 4 overlap each other on a part of the separator 2, the effect is not very excellent in terms of simplification of the structure.
본 발명은 이상에 설명한 종래 옴니 안테나의 문제점들을 해결하고자 제안된 것이다. 본 발명의 목적은 종래의 옴니 안테나와 비교하여 동일한 수준의 전기적 특성을 유지하되 구조를 극단적으로 단순화함으로써, 조립공정 및 원가구조를 개선한 멀티밴드 옴니 안테나를 제공하고자 하는 것이다.The present invention is proposed to solve the problems of the conventional omni antenna described above. An object of the present invention is to provide a multi-band omni antenna that maintains the same level of electrical characteristics as compared to the conventional omni antenna, but by greatly simplifying the structure, thereby improving the assembly process and cost structure.
본 발명에 따른 옴니 안테나는:The omni antenna according to the invention is:
절곡판의 중심을 이루는 급전부와, 상기 급전부의 일측 및 타측에서 상향 절곡 형성되는 저주파 및 고주파 방사패치를 일체로 포함하는 방사소자부;A radiating element unit integrally including a feeding part forming a center of the bending plate and a low frequency and high frequency radiation patch formed upwardly bent at one side and the other side of the feeding part;
상기 방사소자부의 하부에 배치되어, 상기 방사소자부로부터 복사되는 신호를 반사시키는 반사판과;A reflector disposed below the radiating element portion to reflect a signal radiated from the radiating element portion;
상기 반사판을 관통하고 상기 급전부에 연결되어 각 방사패치에 전력을 공급하는 급전 컨넥터;A feeding connector penetrating through the reflecting plate and connected to the feeding part to supply power to each radiation patch;
를 포함하여 구성된다.It is configured to include.
바람직하게 상기 저주파 방사패치 및 고주파 방사패치는 각각 상기 급전부를 중심으로 상향 절곡되어 서로 대향하게 되는 한 쌍의 패치로 이루어진다. 한편, 상기 저주파 방사패치 또는 고주파 방사패치는 대역폭을 넓게 하기 위하여 형성된 홀(hole) 또는 슬롯(slot)을 갖는다.Preferably, the low frequency radiation patch and the high frequency radiation patch are each made up of a pair of patches that are bent upwards to face each other. On the other hand, the low frequency radiation patch or high frequency radiation patch has a hole (hole) or slot (slot) formed to widen the bandwidth.
본 발명에 따른 옴니 안테나에 있어서, 방사소자부는 급전부와 모노폴 타입의 저주파 방사패치 및 고주파 방사패치를 포함한다. 그러나 이러한 안테나 소자들이 별도로 구비되고 조립되어 이루어지는 것이 아니라, 단지 하나의 절곡판을 이용하여 간단하게 제작되는 것이다. 한편, 이 소자를 이용한 본 발명의 안테나가 종래의 옴니 안테나에 비하여 동일 수준의 전기적 특성을 나타내는 것을 실험을 통하여 확인할 수 있었다.In the omni antenna according to the present invention, the radiating element portion includes a feeding part and a low frequency radiation patch and a high frequency radiation patch of the monopole type. However, these antenna elements are not provided and assembled separately, but simply manufactured using only one bending plate. On the other hand, it can be confirmed through experiments that the antenna of the present invention using this device exhibits the same electrical characteristics as the conventional omni antenna.
따라서 본 발명의 안테나가 종래의 옴니 안테나와 비교하여 전기적 특성의 손실없이 구조를 극단적으로 단순화함으로써, 조립공정 및 원가구조를 개선하는 월등한 효과가 있다.Therefore, the antenna of the present invention is extremely simple compared to the conventional omni antenna without loss of electrical characteristics, thereby having an excellent effect of improving the assembly process and cost structure.
도 1은 종래 옴니 안테나의 구성을 보인 도면.1 is a view showing the configuration of a conventional omni antenna.
도 2는 본 발명에 따른 옴니 안테나의 사시도.2 is a perspective view of an omni antenna according to the present invention;
도 3은 도 2의 A-A선 단면도.3 is a cross-sectional view taken along the line A-A of FIG.
도 4는 도 2의 방사소자부 전개도.4 is an exploded view of the radiating element part of FIG. 2;
도 5는 본 발명에 따른 옴니 안테나의 정재파비 그래프.5 is a standing wave ratio graph of the omni antenna according to the present invention.
도 6은 본 발명에 따른 옴니 안테나의 저주파수 대역에서의 패턴도.6 is a pattern diagram in a low frequency band of the omni antenna according to the present invention.
도 7은 본 발명에 따른 옴니 안테나의 고주파수 대역에서의 패턴도.7 is a pattern diagram in the high frequency band of the omni antenna according to the present invention.
도 8은 도 1의 종래 옴니 안테나의 고주파수 대역에서의 패턴도.8 is a pattern diagram in the high frequency band of the conventional omni antenna of FIG.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10. 옴니 안테나 11. 방사소자부10. Omni antenna 11. Radiation element part
12. 반사판 13. 급전 컨넥터12. Reflector 13. Feed connector
14. 급전부 15. 저주파 방사패치14. Feeder 15. Low frequency radiation patch
16. 고주파 방사패치 17. 장착홀16. High frequency radiation patch 17. Mounting hole
18. 브리지 19,20. 홀18.Bridge 19,20. hall
이상에 기재된 또는 기재되지 않은 본 발명의 멀티밴드 옴니 안테나의 특징과 효과들은, 이하에서 첨부도면을 참조하여 설명하는 실시예 기재를 통하여 더욱 명백해질 것이다.Features and effects of the multiband omni antenna of the present invention described or not described above will become more apparent through the following description of embodiments described with reference to the accompanying drawings.
도 2를 참조하면, 본 발명의 실시예에 따른 옴니 안테나가 부호 10으로 표시된다. 본 발명의 옴니 안테나(10)는 방사소자부(11)와, 반사판(12) 및 급전 컨넥터(13)를 포함하여 이루어진다. 그리고 여기에 도시하지는 않았으나, 상기 반사판(12) 상에는 방사소자부(11)를 커버하고 보호하기 위한 형태의 레이돔이 장착될 수 있다.Referring to FIG. 2, an omni antenna according to an embodiment of the present invention is denoted by reference numeral 10. The omni antenna 10 of the present invention includes a radiating element portion 11, a reflecting plate 12, and a power feeding connector 13. Although not shown here, a radome of a type for covering and protecting the radiating element part 11 may be mounted on the reflecting plate 12.
상기 방사소자부(11)는 절곡판의 중심을 제공하는 급전부(14)와, 상기 급전부(14)의 일측 및 타측 가장자리에서 연장되고 상향 절곡되어 형성되는 저주파 방사패치(15)와 고주파 방사패치(16)를 포함하여 일체로 형성된다.The radiating element part 11 includes a feed part 14 providing a center of a bending plate, a low frequency radiation patch 15 formed at one side and the other edge of the feed part 14 and upwardly bent, and a high frequency radiation. The patch 16 is integrally formed.
원하는 안테나 특성을 얻기 위하여 각 방사패치(15,16)가 길어지거나 안테나 규모가 커지는 것을 방지하기 위하여 바람직하게, 저주파 방사패치(15) 및 고주파 방사패치(16)는 각각 상기 급전부(14)를 중심으로 상향 절곡되어 서로 대향하게 되는 한 쌍의 패치(15a-15b,16a-16b)로 이루어진다.Preferably, the low frequency radiation patch 15 and the high frequency radiation patch 16 each feed the feeder 14 to prevent the radiation patches 15, 16 from lengthening or increasing the antenna scale in order to obtain desired antenna characteristics. It consists of a pair of patches 15a-15b and 16a-16b which are bent upwards toward the center to face each other.
도 4를 참조하면 상기 절곡판은 얇은 금속 플레이트로서, 중심부의 사각 급전부(14)와 상기 급전부(14)의 상·하 및 좌·우 가장자리에서 대칭적으로 연장된 패치(15a-15b, 16a-16b)를 일체로 포함하며, 전체적으로는 십(+)자 형태로 재단되어 있다.Referring to FIG. 4, the bent plate is a thin metal plate, and the patches 15a-15b, which are symmetrically extended at the top, bottom, left, and right edges of the rectangular feed portion 14 and the feed portion 14 at the center thereof, 16a-16b) integrally, cut in a cross (+) shape as a whole.
상기 급전부(14)의 중심에는 절곡판을 고정시키기 위한 장착홀(17)이 형성되어 있으며, 반사판(12)을 관통하여 설치되는 급전 컨넥터(13)가 상기 장착홀(17)에 끼워져 연결된다. 이 상태에서 각 패치(15a,15b,16a,16b)가 상향 절곡되는데, 이때 대칭된 패치(15a-15b,16a-16b) 중에서 상대적으로 길이가 긴 쌍(15a-15b)이 대향하여 저주파 방사패치(15)를 형성하게 되며, 길이가 짧은 쌍(16a-16b)이 대향하여 고주파 방사패치(16)를 형성하게 되는 것이다. A mounting hole 17 for fixing the bent plate is formed at the center of the feeding part 14, and a feeding connector 13 installed through the reflecting plate 12 is fitted into the mounting hole 17. . In this state, each of the patches 15a, 15b, 16a, and 16b is bent upward, wherein a relatively long pair 15a-15b of the symmetrical patches 15a-15b and 16a-16b faces the low frequency radiation patch. 15, short pairs 16a-16b face each other to form a high frequency radiation patch 16.
부호 18은 상기 절곡판 상 저주파용 일측 패치(15a)의 끝단에서 돌출하도록 설계된 "ㄷ"형 브리지 구조이다. 이상 설명한 바와 같이 상기 방사소자부(11)는 각 요소(14,15,16)가 별도로 구비되고 조립되어 이루어지는 것이 아니라, 단지 하나의 절곡판을 이용하여 간단하게 제작될 수 있는 것이다. Reference numeral 18 denotes a "c" type bridge structure designed to protrude from the end of the low frequency one side patch 15a on the bent plate. As described above, the radiating element part 11 is not provided with each of the elements 14, 15, and 16 separately and may be simply manufactured by using only one bending plate.
다시 도 2를 참조하면, 각 패치(15a,15b,16a,16b)가 상향 절곡됨에 따라 하나의 구체화된 방사소자부(11)가 형성될 수 있다. 이때 상기 브리지(18)는 절곡 및 대향하는 저주파용 패치(15a-15b) 간을 직접 연결해 줌으로써 저주파 방사패치(15)의 전장이 충분히 연장되도록 한다. 구조적으로, 상기 저주파 방사패치(15)는 일측 패치(15a)의 끝단에서 연장되어 타측 패치(15b)의 끝단으로 연결되는 브리지(18)를 포함하는 것으로 설명된다.Referring back to FIG. 2, as each patch 15a, 15b, 16a, and 16b is bent upward, one embodied radiating element part 11 may be formed. At this time, the bridge 18 directly connects the bending and opposing low frequency patches 15a-15b so that the full length of the low frequency radiation patch 15 is sufficiently extended. Structurally, the low frequency radiation patch 15 is described as including a bridge 18 extending from the end of one patch 15a and connected to the end of the other patch 15b.
바람직하게 상기 방사소자부(11)는 각 주파수 대역폭의 확장 및 조정을 위한 구성을 갖는다. 예컨대, 상기 방사패치(15,16)는 각 주파수 대역폭을 확장시키기 위하여 형성된 홀(19,20) 또는 슬롯(slot)을 갖는다. 특히 본 실시예에서, 상기 저주파 방사패치(15)의 홀(19)은 양측으로 이격된 브리지(18) 사이에 형성된 것을 이용한다.Preferably, the radiating element section 11 has a configuration for extending and adjusting each frequency bandwidth. For example, the radiation patches 15 and 16 have holes 19 and 20 or slots formed to extend each frequency bandwidth. In particular, in the present embodiment, the holes 19 of the low frequency radiation patch 15 use those formed between the bridges 18 spaced on both sides.
또한 상기 방사패치(15,16)는 최적 주파수 조건을 따라 조정하기 위한 하나 이상의 절곡선(21)을 갖는다. 절곡선(21)의 형태 및 개수에는 제한을 두지 않는다. 이에 각 방사패치(15,16)를 부분적으로 절곡하여 각도 및 형태 변환하면서 최적의 상태를 찾아 조정할 수 있다.The radiation patches 15 and 16 also have one or more bend lines 21 for adjusting according to optimum frequency conditions. The shape and number of the bend lines 21 are not limited. Accordingly, the radiation patches 15 and 16 may be partially bent to find and adjust the optimal state while converting angles and shapes.
상기 반사판(12)은 원형 또는 각형의 플레이트로 된 통상의 그라운드 반사판으로, 상기 방사소자부(11)의 하부에 평면적으로 배치되어 방사소자부(11)로부터 복사된 RF 신호를 반사한다. 상기 급전 컨넥터(13) 또한 급전 심선을 포함하는 통상의 안테나용 컨넥터이다. 한편 본 발명에서 상기 방사소자부(11)와 반사판(12)은, 반사판(12)을 관통하는 급전 컨넥터(13)에 의하여 유기적으로 결합된다.The reflecting plate 12 is a conventional ground reflecting plate made of a circular or rectangular plate, and is disposed in a plane below the radiating element part 11 to reflect the RF signal radiated from the radiating element part 11. The feed connector 13 is also a conventional antenna connector including a feed core wire. Meanwhile, in the present invention, the radiating element part 11 and the reflecting plate 12 are organically coupled by the feed connector 13 penetrating the reflecting plate 12.
도 3을 참조하면, 상기 급전 컨넥터(13)는 상기 반사판(12)의 중심을 관통하여 설치되고 심선의 끝단이 방사소자부(11)의 급전부(14) 장착홀(17)에 끼워져 고정됨으로써, 방사소자부(11)와 반사판(12) 및 급전 컨넥터(13)가 유기적으로 서로 결합되어, 본 발명의 옴니 안테나(10)가 완성되는 것이다.Referring to FIG. 3, the power supply connector 13 is installed through the center of the reflector plate 12 and the end of the core wire is fitted into and fixed to the power supply unit 14 mounting hole 17 of the radiating element part 11. The radiating element portion 11, the reflecting plate 12, and the power feeding connector 13 are organically coupled to each other, thereby completing the omni antenna 10 of the present invention.
이 구조에서, 저주파 방사패치(15) 및 고주파 방사패치(16)를 구성하는 각 패치(15a,15b,16a,16b)는 급전방식에 있어서, 상기 반사판(12)을 관통하는 급전 컨넥터(13) 및 이와 접촉하는 중앙 급전부(14)를 통하여 직접 급전된다. 따라서 안정적이고 우수한 전력 공급이 이루어질 수 있다.In this structure, each of the patches 15a, 15b, 16a, and 16b constituting the low frequency radiation patch 15 and the high frequency radiation patch 16 is a power supply connector 13 penetrating through the reflector plate 12 in a power feeding method. And a power supply directly through the central power supply unit 14 in contact therewith. Therefore, stable and excellent power supply can be achieved.
본 발명의 옴니 안테나(10)는 도 1에 개시된 본 출원인의 종래 안테나(1)와 유사한 규모에서 고주파수 대역 및 저주파수 대역의 방사를 동시에 가능하게 하고 또한 간단하게 제작할 수 있도록 하기 위하여, 하나의 절곡판을 이용하여 상기 방사소자부(11)를 형성하는 것이다. 이 방사소자부(11)의 저주파 방사패치(15)에서 저주파수 대역이 방사되고 고주파 방사패치(16)에서 고주파수 대역이 방사되어, 광대역 및 다중대역이 가능해지는 것이다.The omni antenna 10 of the present invention is one bent plate to enable simultaneous and simple fabrication of high frequency band and low frequency band on a similar scale as the conventional antenna 1 of the applicant disclosed in FIG. By using to form the radiating element portion (11). The low frequency band is radiated from the low frequency radiation patch 15 of the radiating element section 11 and the high frequency band is radiated from the high frequency radiation patch 16, thereby enabling wideband and multiband.
실제로 본 발명의 옴니 안테나(10)는 저주파수 대역(대역폭 15.25%)에서 Cellular: 824~894MHz, GSM: 880~960MHz, 고주파 대역(대역폭 44.89%)에서 PCS:1710~1870MHz, IMT-2000(WCDMA): 1885~2170MHz, Wibro: 2300~2390MHz, ISM: 2400~2500MHz, SDMB: 2630~2655MHz, Wimax: 2500~2700MHz 등에서 유효하게 사용 가능한 안테나를 목적으로 개발된 것으로, 도 5 내지 도 7에서 참조되는 바와 같이 각 대역에서 양호한 패턴 및 이득 특성을 나타내었다.In fact, the omni antenna 10 of the present invention is Cellular: 824 to 894 MHz, GSM: 880 to 960 MHz in the low frequency band (15.25% bandwidth), PCS: 1710 to 1870 MHz, IMT-2000 (WCDMA) in the high frequency band (44.89% bandwidth) : 1885 ~ 2170MHz, Wibro: 2300 ~ 2390MHz, ISM: 2400 ~ 2500MHz, SDMB: 2630 ~ 2655MHz, Wimax: 2500 ~ 2700MHz, etc. It was developed for the purpose of the antenna that can be effectively used, as referred to in FIGS. Likewise, good pattern and gain characteristics were shown in each band.
참고로 도 8은 본 출원인의 종래 안테나(1)의 특성을 보인 패턴도인데, 이를 도 7과 비교해 보면 상호 동일한 정도의 전기적 특성을 보이고 있음을 알 수 있다. 결국, 본 발명의 옴니 안테나(10)는 그 특성에 있어서 종래의 안테나에 비하여 부족함이 없으며, 특별하게는 극단적으로 단순화된 구조를 가짐으로써 조립공정 및 원가구조를 개선하는 월등한 효과가 있는 것이다.For reference, FIG. 8 is a pattern diagram showing the characteristics of the conventional antenna 1 of the present applicant, and when compared with FIG. 7, it can be seen that electrical characteristics of the same degree are shown. As a result, the omni antenna 10 of the present invention has no shortcomings in comparison with conventional antennas, and has an excellent effect of improving the assembly process and cost structure by having an extremely simplified structure.

Claims (6)

  1. 절곡판의 중심을 이루는 급전부와, 상기 급전부의 일측 및 타측에서 상향 절곡 형성되는 저주파 및 고주파 방사패치를 일체로 포함하는 방사소자부;A radiating element unit integrally including a feeding part forming a center of the bending plate and a low frequency and high frequency radiation patch formed upwardly bent at one side and the other side of the feeding part;
    상기 방사소자부의 하부에 배치되어, 상기 방사소자부로부터 복사되는 신호를 반사시키는 반사판과;A reflector disposed below the radiating element portion to reflect a signal radiated from the radiating element portion;
    상기 반사판을 관통하고 상기 급전부에 연결되어 각 방사패치에 전력을 공급하는 급전 컨넥터;A feeding connector penetrating through the reflecting plate and connected to the feeding part to supply power to each radiation patch;
    를 포함하는 것을 특징으로 하는 멀티밴드 옴니 안테나.Multi-band omni antenna, comprising a.
  2. 제1항에 있어서,The method of claim 1,
    상기 저주파 방사패치 및 고주파 방사패치는 각각 상기 급전부를 중심으로 상향 절곡되어 서로 대향하게 되는 한 쌍의 패치로 이루어진 것을 특징으로 하는 멀티밴드 옴니 안테나.The low-frequency radiation patch and the high-frequency radiation patch is a multi-band omni antenna, characterized in that each consisting of a pair of patches that are bent upwards to face each other.
  3. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 저주파 방사패치 또는 고주파 방사패치는 대역폭을 넓게 하기 위하여 형성된 홀 또는 슬롯을 갖는 것을 특징으로 하는 멀티밴드 옴니 안테나.Wherein said low frequency or high frequency radiation patch has holes or slots formed to widen the bandwidth.
  4. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 저주파 방사패치 또는 고주파 방사패치는 안테나 조정을 위한 하나 이상의 절곡선을 갖는 것을 특징으로 하는 멀티밴드 옴니 안테나.Wherein said low frequency or high frequency radiation patch has one or more bends for antenna adjustment.
  5. 제2항에 있어서,The method of claim 2,
    상기 저주파 방사패치는 일측 패치의 끝단에서 연장되어 타측 패치의 끝단으로 연결되는 브리지를 포함하는 것을 특징으로 하는 멀티밴드 옴니 안테나.The low frequency radiation patch includes a multi-band omni antenna, characterized in that it comprises a bridge extending from the end of one patch to the end of the other patch.
  6. 제5항에 있어서,The method of claim 5,
    상기 브리지는 양측으로 이격 배치되며, 양 브리지 사이에 형성된 홀이 상기 저주파 방사패치의 대역폭을 넓게 하기 위하여 이용되는 것을 특징으로 하는 멀티밴드 옴니 안테나.The bridges are spaced apart on both sides, and a hole formed between both bridges is used to widen the bandwidth of the low frequency radiation patch multi-band omni antenna.
PCT/KR2010/007680 2010-10-13 2010-11-03 Multiband omnidirectional antenna WO2012050258A1 (en)

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KR101523026B1 (en) * 2015-03-11 2015-05-26 주식회사 선우커뮤니케이션 Multiband omni-antenna

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200190455Y1 (en) * 2000-03-14 2000-08-01 김선구 Omni antenna for having multi bended radial member
KR20050034975A (en) * 2003-10-10 2005-04-15 주식회사 복스오라테크놀로지코리아 A cylindrical monopole antenna with multi-slot
US20050243007A1 (en) * 2004-04-29 2005-11-03 Hon Hai Precision Ind. Co., Ltd. Dual-band dipole antenna
KR20050107881A (en) * 2004-05-10 2005-11-16 아주대학교산학협력단 Multiple meander strip monopole antenna with broadband characteristic
US20060071871A1 (en) * 2004-10-05 2006-04-06 Industrial Technology Research Institute Omnidirectional ultra-wideband monopole antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200190455Y1 (en) * 2000-03-14 2000-08-01 김선구 Omni antenna for having multi bended radial member
KR20050034975A (en) * 2003-10-10 2005-04-15 주식회사 복스오라테크놀로지코리아 A cylindrical monopole antenna with multi-slot
US20050243007A1 (en) * 2004-04-29 2005-11-03 Hon Hai Precision Ind. Co., Ltd. Dual-band dipole antenna
KR20050107881A (en) * 2004-05-10 2005-11-16 아주대학교산학협력단 Multiple meander strip monopole antenna with broadband characteristic
US20060071871A1 (en) * 2004-10-05 2006-04-06 Industrial Technology Research Institute Omnidirectional ultra-wideband monopole antenna

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