KR20020076869A - Planar Type Array Antenna with Rectangular Beam Pattern - Google Patents
Planar Type Array Antenna with Rectangular Beam Pattern Download PDFInfo
- Publication number
- KR20020076869A KR20020076869A KR1020010017059A KR20010017059A KR20020076869A KR 20020076869 A KR20020076869 A KR 20020076869A KR 1020010017059 A KR1020010017059 A KR 1020010017059A KR 20010017059 A KR20010017059 A KR 20010017059A KR 20020076869 A KR20020076869 A KR 20020076869A
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- South Korea
- Prior art keywords
- array antenna
- planar
- conductive side
- feeder
- antenna
- Prior art date
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- 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
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- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
본 발명의 안테나는 기존의 기지국 안테나가 거대한 빌딩들이 많은 시가지의도로 셀에 적합하지 않게 거리의 방향에 따른 최대 방사 전력을 기준으로 거리의 횡 방향으로도 같은 방사전력이 송출되므로 이것은 빌딩에 의한 페이딩 현상을 증가시킬 뿐만 아니라 횡 방향으로의 큰 방사 전력으로 인해 길이 방향의 방사전력이 감소되어 결국 동일한 공급전력에 대하여 셀의 크기가 작게되는 결과를 초래하게 되어 이를 개선하기 위하여 방사 패턴을 직사각형으로 하면 같은 전력 공급으로 높은 빌딩이 많은 대도시 시가지에서 도로의 길이 방향에 따라 큰 방사 전력을 갖고 횡 방향으로는 낮은 방사전력을 갖게 함으로써 빌딩에 의한 페이딩 현상을 억제하고 길이 방향으로 최대 방사 길이를 증가시키는데 목적이 있다.In the antenna of the present invention, since the same base station antenna transmits the same radiated power even in the transverse direction of the distance based on the maximum radiated power along the direction of the street so that a large base station antenna is not suitable for a cell with many buildings with large buildings. In addition to increasing the phenomena, the radiation power in the longitudinal direction is reduced due to the large radiation power in the transverse direction, resulting in a smaller cell size for the same supply power. The purpose is to suppress fading by buildings and increase the maximum radiation length in the longitudinal direction by having large radiation power along the length of the road and low radiation power in the transverse direction in large urban areas with many high buildings with the same power supply. There is this.
본 발명이 속하는 기술 분야는 특정한 방사 빔 패턴을 갖는 지향성 안테나 분야이다.The technical field to which the present invention belongs is the field of directional antennas with specific radiation beam patterns.
지향성 안테나에서 종래의 이 분야 기술은 [도 4] 에 나타낸 바와 같이 전방향성 안테나를 사용하면 인접 셀과의 겹치는 부분이 크게되어 셀의 크기가 작아지게 되고 영역을 넓히기 위하여 전력을 증가시키면 건물 등에 의한 페이딩 현상이 크게 나타난다. 그러나 직사각형 빔 패턴을 갖는 안테나를 사용하면 [도 5] 와 같이 도로 방향에 따라 셀의 영역을 넓힐 수 있다.In the directional antenna, a conventional technique in this field is that when the omni-directional antenna is used as shown in FIG. 4, the overlapping portion with the neighboring cell becomes larger, the size of the cell becomes smaller, and the power is increased to increase the area. The fading phenomenon is large. However, if the antenna having a rectangular beam pattern is used, the area of the cell can be widened along the road direction as shown in FIG. 5.
본 발명의 평면형 모노폴 배열 안테나는 [도 1, 2, 3] 에서 나타낸 것과 같이 인쇄회로 기판 연장면상에 인쇄회로 기술에 의하여 제작함으로써 기존의 모노폴 배열 안테나에 비하여 소형, 박형화가 가능하고 모노폴 안테나가 가지는 수평면상의 넓은 면적의 접지면을 수직으로 처리하여 단일 평면상에 소형화가 가능하지만 [도 1] 과 같이 배열하였을 경우 배열 축상의 도체에 의하여 E면 방사패턴에 사이드로브가 발생하는 것을 처리하는 문제가 남아 있다.The planar monopole array antenna of the present invention can be made smaller and thinner than the conventional monopole array antenna by manufacturing the printed circuit technology on the printed circuit board extension surface as shown in [FIGS. 1, 2, 3]. Although it is possible to reduce the size of the ground plane of a large area on the horizontal plane vertically in a single plane, when arranged as shown in Fig. 1, there is a problem that the side lobe is generated in the E-plane radiation pattern by the conductor on the arrangement axis. Remains.
[도 1] 은 전력 분배기를 스트립 선로(Strip Line)로 급전하는 평면형 모노폴을 12 배열한 안테나 구조1 is an antenna structure in which 12 planar monopoles are arranged to feed a power divider to a strip line.
[도 2] 는 전력 분배기를 마이크로스트립 선로(Microstrip Line)로 하여 급전하는 평면형 모노폴을 12 배열한 안테나 구조2 is an antenna structure in which 12 planar monopoles are fed with a power divider as a microstrip line.
[도 3] 은 전력분배기를 접지면을 가지는 코플레나 웨이브가이드 급전에 의한 평면 모노폴을 12 배열한 안테나 구조3 is an antenna structure in which 12 planar monopoles are arranged by coplanar waveguide feeding having a power divider having a ground plane.
[도 1, 2, 3] 에서 (1), (8) : 도체, (2) : 안테나 소자, (3), (4), (7) : 유전체, (5) : 스트립선로 전력 분배기, (6) : 급전점, (9) : 마이크로 스트립선로 전력 분배기, (10) : 코플레나웨이브가이드선로 전력 분배기1, 2, 3, (1), (8): conductor, (2): antenna element, (3), (4), (7): dielectric, (5): strip line power divider, ( 6): feed point, (9): microstrip line power divider, (10): coplana waveguide line power divider
[도 4] 는 기존의 전방향성 안테나에 의한 방사 패턴4 is a radiation pattern by the conventional omni-directional antenna
[도 5] 는 직사각형 방사 패턴을 갖는 안테나에 의한 빔 패턴5 is a beam pattern by an antenna having a rectangular radiation pattern
본 발명의 안테나 구성은 [도 1] 에서는 앞과 뒤의 도체면( [도 1] (1), (8))을 갖는 스트립선로를 전력 분배기와 급전선으로 사용하고 이 두 도체를 쓰루홀을 사용하여 연결하였다. 또한 배열된 안테나 간격은 0.43λ 간격을 유지한다.In the antenna configuration of the present invention, in FIG. 1, a strip line having front and rear conductor surfaces ([1] (1) and (8)) is used as a power divider and a feed line, and the two conductors use through holes. Connected. The arranged antenna spacing also maintains 0.43λ spacing.
[도 2] 는 마이크로스트립선로를 전력 분배기와 급전선으로 사용한 것이고, [도 3] 은 코플레나웨이브가이드를 전력 분배기와 급전선으로 사용한 것이다.FIG. 2 shows a microstrip line as a power divider and a feeder, and FIG. 3 shows a coplana waveguide as a power divider and a feeder.
본 발명에서 평면형 모노폴을 12 배열한 안테나( [도 1, 2, 3] )를 주파수 1.85[GHz] 대역에서 설계, 제작하여 특성을 측정하였다.In the present invention, 12 planar monopole antennas ([1, 2, 3]) were designed and fabricated in a frequency band 1.85 [GHz] to measure characteristics.
측정 결과 [도 6] 과 같이 긴변의 이득이 0dB이고 단변이 -8dB로 축비는 8dB 차이가 나는 직사각형 방사 빔 패턴을 얻을 수 있었다.As a result of the measurement, as shown in FIG. 6, the long side gain was 0 dB and the short side was -8 dB, and the axial ratio was 8 dB.
본 발명의 안테나는 기존 수평접지면을 갖는 모노폴 소자를 배열한 안테나 구조를 스트립선로와 마이크로스트립선로, 코플레나웨이브가이드 전력 분배 및 급전 구조를 사용하여 수직 도체면을 접지면으로 사용함으로써 평면형임으로 소형, 박형화가 가능하고, 또한 프린트 기판상에 직접 제작함으로써 저가로 간단히 제작하여 장착할 수 있다는 장점이 있다.The antenna of the present invention has a flat structure by using a vertical conductor plane as a ground plane using a strip line, a microstrip line, a coplanar waveguide power distribution and a feed structure using an antenna structure in which a monopole element having an existing horizontal ground plane is arranged. It is advantageous in that it can be compact and thin, and can be manufactured and mounted at low cost by directly manufacturing on a printed board.
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Application Number | Priority Date | Filing Date | Title |
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KR1020010017059A KR20020076869A (en) | 2001-03-30 | 2001-03-30 | Planar Type Array Antenna with Rectangular Beam Pattern |
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KR1020010017059A KR20020076869A (en) | 2001-03-30 | 2001-03-30 | Planar Type Array Antenna with Rectangular Beam Pattern |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100530657B1 (en) * | 2002-03-26 | 2005-11-22 | 하라다 고교 가부시키가이샤 | Array antenna |
KR101129231B1 (en) * | 2009-02-23 | 2012-04-13 | 경기대학교 산학협력단 | Antenna structure capable of switching feed line |
KR101134925B1 (en) * | 2005-12-30 | 2012-04-17 | 엘지전자 주식회사 | Feeding Structure and Antenna Having it |
CN105356062A (en) * | 2015-10-23 | 2016-02-24 | 广东博纬通信科技有限公司 | Broadband array antenna |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05299934A (en) * | 1992-04-20 | 1993-11-12 | Mitsubishi Electric Corp | Array antenna |
US5708446A (en) * | 1995-04-29 | 1998-01-13 | Qualcomm Incorporated | Printed circuit antenna array using corner reflector |
KR19980075588A (en) * | 1997-03-31 | 1998-11-16 | 윤종용 | Microstrip Dipole Antenna Array with Resonator |
KR19990027314A (en) * | 1997-09-29 | 1999-04-15 | 윤종용 | Microstrip Dipole Antenna Array |
JP2000349545A (en) * | 1999-04-26 | 2000-12-15 | Andrew Corp | Antenna structure, facility and configuration method |
-
2001
- 2001-03-30 KR KR1020010017059A patent/KR20020076869A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05299934A (en) * | 1992-04-20 | 1993-11-12 | Mitsubishi Electric Corp | Array antenna |
US5708446A (en) * | 1995-04-29 | 1998-01-13 | Qualcomm Incorporated | Printed circuit antenna array using corner reflector |
KR19980075588A (en) * | 1997-03-31 | 1998-11-16 | 윤종용 | Microstrip Dipole Antenna Array with Resonator |
KR19990027314A (en) * | 1997-09-29 | 1999-04-15 | 윤종용 | Microstrip Dipole Antenna Array |
JP2000349545A (en) * | 1999-04-26 | 2000-12-15 | Andrew Corp | Antenna structure, facility and configuration method |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100530657B1 (en) * | 2002-03-26 | 2005-11-22 | 하라다 고교 가부시키가이샤 | Array antenna |
KR101134925B1 (en) * | 2005-12-30 | 2012-04-17 | 엘지전자 주식회사 | Feeding Structure and Antenna Having it |
KR101129231B1 (en) * | 2009-02-23 | 2012-04-13 | 경기대학교 산학협력단 | Antenna structure capable of switching feed line |
CN105356062A (en) * | 2015-10-23 | 2016-02-24 | 广东博纬通信科技有限公司 | Broadband array antenna |
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