KR20000007676A - Low side lobe dual polarization directional antenna having a chock reflector - Google Patents
Low side lobe dual polarization directional antenna having a chock reflector Download PDFInfo
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- KR20000007676A KR20000007676A KR1019980027126A KR19980027126A KR20000007676A KR 20000007676 A KR20000007676 A KR 20000007676A KR 1019980027126 A KR1019980027126 A KR 1019980027126A KR 19980027126 A KR19980027126 A KR 19980027126A KR 20000007676 A KR20000007676 A KR 20000007676A
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- reflector
- directional antenna
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- side lobe
- low side
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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
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
-
- 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
- H01Q19/108—Combination of a dipole with a plane reflecting surface
-
- 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
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
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- 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
-
- 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
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/10—Collinear arrangements of substantially straight elongated conductive units
-
- 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
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
- H01Q3/20—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is fixed and the reflecting device is movable
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
본 발명은 무선 통신에 있어서, 통신 품질을 저하시키는 가장 큰 원인의 하나인 페이딩(Fading) 현상에 의한 통신 열화를 방지하기 위하여 종래의 공간 다이버시티(Space Diversity) 방식을 대체한 편파 다이버시티(Polarization Diversity)방식을 이용한 안테나에 관한 것으로, 특히 하나의 안테나로 이중편파의 효과를 얻을 수 있는 쵸크반사기를 가지는 저 사이드로브 이중편파 지향성 안테나에 관한 것이다.According to the present invention, in order to prevent communication deterioration due to fading, which is one of the biggest causes of deterioration of communication quality, polarization diversity is replaced by a conventional space diversity scheme. The present invention relates to an antenna using the Diversity method, and more particularly, to a low side lobe bipolar directional antenna having a choke reflector capable of obtaining a dual polarization effect with one antenna.
일반적으로, 무선 통신 분야에 있어서, 공간 다이버시티란 수신단에서 2개 이상의 수신 안테나를 일정 거리 이상 이격시켜 수신함에 따라 각각의 안테나에 도달하는 신호는 동일한 양상으로 열화될 확률이 낮아진다는 이론에 기초한 것으로서 오늘날 이동통신 분야에서 널리 사용되고 있는 방식이다.In general, in the field of wireless communication, spatial diversity is based on the theory that as two or more receiving antennas are separated by a predetermined distance from a receiving end, signals reaching each antenna are less likely to degrade in the same manner. It is widely used in the field of mobile communication today.
상기의 방식과는 달리 편파 다이버시티는 전파가 반사될 때에 지구자계의 영향으로 타원 편파가 되어 그 전계는 수평 분력과 수직 분력을 가지게 되므로 전파의 세기는 일정해도 편파면이 시간적으로 회전하기 때문에, 수신 안테나의 유기 전압 변동으로 발생하는 편파성 페이딩을 보상할 수 있는 방식이다. 그러므로, 수신단에 수평 편파 안테나와 수직 편파 안테나를 따로 설치하여 각 분력을 분리 수신, 합성하게 되면 페이딩의 영향을 경감할 수 있게 된다.Unlike the above method, polarization diversity is an elliptical polarization under the influence of the earth's magnetic field when the radio waves are reflected, and the electric field has horizontal and vertical components, so the polarization plane rotates in time even though the intensity of radio waves is constant. The polarization fading caused by variation in the induced voltage of the receiving antenna is compensated for. Therefore, when the horizontal polarization antenna and the vertical polarization antenna are separately installed at the receiving end, each component is separately received and synthesized, thereby reducing the effects of fading.
현재 무선 통신용 안테나가 설치되어 있는 대부분의 기지국은 공간적으로 매우 협소하므로 인접 안테나와의 거리가 가깝게 되어 안테나 상호간에 영향을 미친다.Currently, most base stations equipped with antennas for wireless communication are very narrow spatially, so the distances from adjacent antennas are close, which affects the antennas.
종래 기술에 따른 지향성 안테나는 평면 격자 반사판을 사용하며, 이에 대한 구성을 도1a 및 도1b를 참조하여 간략히 설명한다.The directional antenna according to the prior art uses a planar grating reflector, the configuration thereof will be briefly described with reference to FIGS. 1A and 1B.
도면에 도시된 바와 같이, 종래의 지향성 안테나는 금속재의 반사판(11)에 소정의 거리를 두고 복사소자(13)가 수직 방향으로 다수 구비되어 있고, 상기 복사소자 각각에는 전력 분배기(14)로부터 급전 케이블(15)을 통하여 신호가 인가되는 구조로 되어 있다. 또한, 이들 복사소자(13), 전력 분배기(14) 및 급전 케이블(15)은 레이돔(12)에 의해 외부 환경으로부터 보호되어 있다.As shown in the figure, the conventional directional antenna is provided with a plurality of radiation elements 13 in the vertical direction at a predetermined distance to the metal reflective plate 11, each of the radiation elements are fed from the power divider 14 A signal is applied through the cable 15. In addition, these radiating elements 13, the power divider 14 and the power feeding cable 15 are protected from the external environment by the radome 12.
상기와 같은 종래의 지향성 안테나는 단일 편파 구조이므로 수신단에서 공간 다이버시티 효과를 얻기 위해서는 2개 이상의 안테나가 필요하게 되고, 한정된 기지국 공간내에서 인접 안테나와의 거리가 가깝게 되어 안테나 상호간에 영향을 미치는 문제점이 있다.Since the conventional directional antenna as described above has a single polarization structure, two or more antennas are required to obtain a spatial diversity effect at a receiving end, and the distance between adjacent antennas in a limited base station space is close to each other, thereby affecting the mutual antennas. There is this.
또한, 종래의 지향성 안테나는 평면 격자 반사판을 사용하고, 일정한 빔폭을 가지고 복사하기 때문에 측면으로의 불필요한 복사 에너지가 상당히 많이 발생한다. 이러한 안테나로부터 복사되는 측면 복사 에너지는 동일 기지국내의 인접 안테나에 영향을 미쳐 간섭을 일으키거나 호 손실의 원인이 되고 있다. 또한 안테나의 특성중 수평 빔폭 및 전후방비를 변화시키기 위해서는 반사판 전체의 크기를 조절해야만 하는 문제점이 있을 뿐만 아니라, 반사판의 크기가 크기 때문에 풍압에 의한 영향이 심각하게 발생하는 다른 문제점이 있었다.In addition, the conventional directional antenna uses a planar lattice reflector and radiates with a constant beamwidth, so that unnecessary radiation energy to the side is generated considerably. Lateral radiant energy radiated from these antennas affects adjacent antennas in the same base station, causing interference or causing call loss. In addition, in order to change the horizontal beam width and the front and rear ratio among the characteristics of the antenna, not only has to adjust the size of the entire reflector, but also because of the large size of the reflector, there was another problem that seriously caused by wind pressure.
따라서, 본 발명은 상기의 제반 문제점을 해결하기 위하여 안출된 것으로서, 반사판을 절곡하여 측면으로의 반사를 억제하고, 쵸크 반사기를 이용하여 측면 복사 에너지가 현저하게 감소되도록 측면으로의 복사 에너지를 여과함으로써 동일 기지국내의 인접 안테나에 미치는 간섭을 경감시킬 수 있는 쵸크반사기를 가지는 저 사이드로브 이중편파 지향성 안테나를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, by bending the reflector to suppress reflection on the side, by filtering the radiant energy to the side so that the side radiant energy is significantly reduced by using a choke reflector It is an object of the present invention to provide a low side lobe dual polarized directional antenna having a choke reflector capable of reducing interference on adjacent antennas in the same base station.
또한, 본 발명은 쵸크 반사기를 구비하여 안테나 크기를 소형화하므로써 풍압 하중을 감소시키며, 안테나의 크기를 변화시키지 않으면서 쵸크 반사기의 위치를 조절하여 반치각, 전후방비, 분리도 등 안테나의 제반 특성을 향상시킬 수 있는 쵸크반사기를 가지는 저 사이드로브 이중편파 지향성 안테나를 제공함에 다른 목적이 있다.In addition, the present invention is equipped with a choke reflector to reduce the wind pressure load by miniaturizing the antenna size, by adjusting the position of the choke reflector without changing the size of the antenna to improve the overall characteristics of the antenna such as half angle, front and rear ratio, separation It is another object to provide a low side lobe bipolar directional antenna with a choke reflector that can be improved.
또한, 본 발명은 하나의 안테나에 두 개의 입력을 가지는 복사소자를 소정 각도만큼 경사지게 설치함으로써 이중 편파의 효과를 구현할 수 있는 쵸크반사기를 가지는 저 사이드로브 이중편파 지향성 안테나를 제공함에 또 다른 목적이 있다.In addition, another object of the present invention is to provide a low side lobe dual polarization directional antenna having a choke reflector capable of realizing the effect of dual polarization by installing a radiation element having two inputs in one antenna inclined by a predetermined angle. .
도1a는 종래 기술에 따른 지향성 안테나의 외관도.1A is an external view of a directional antenna according to the prior art.
도1b는 종래 기술에 따른 지향성 안테나의 내부 구조도.1B is an internal structural diagram of a directional antenna according to the prior art.
도2는 본 발명에 따른 쵸크 반사기를 갖는 저 사이드로브 이중 편파 지향성 안테나의 외관 구성도.2 is an external configuration diagram of a low side lobe dual polarized directional antenna having a choke reflector according to the present invention;
도3a는 본 발명에 따른 쵸크 반사기를 갖는 저 사이드로브 이중 편파 지향성 안테나의 내부 구성도.Fig. 3A is an internal configuration diagram of a low side lobe dual polarized directional antenna having a choke reflector according to the present invention.
도3b는 본 발명에 따른 쵸크반사기를 갖는 저사이드로브 이중편파지향성 안테나의 배면 구성도.3b is a rear configuration diagram of a low side lobe dual polarization directional antenna having a choke reflector according to the present invention;
도4는 본 발명의 요부인 복사소자의 구성도.4 is a block diagram of a radiation element as a main part of the present invention;
도5a 및 도5b는 본 발명에 의한 안테나의 사이드로브를 감소시키기 위한 주(Main) 전력 분배기 및 부(sub) 전력 분배기의 구성도.5A and 5B are schematic diagrams of a main power divider and a sub power divider for reducing side lobes of an antenna according to the present invention;
* 도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
11: 반사판 12,21: 레이돔 13: 복사 소자11: reflector 12, 21: radome 13: radiation element
14: 전력 분배기 15: 급전 케이블 22: 콘넥터14: power divider 15: feed cable 22: connector
31,41: 절곡 반사판 32,42: 동축다이폴 33,43: 쵸크 반사기31, 41: Bending reflector 32, 42: Coaxial dipole 33, 43: Choke reflector
34 : 구획판34: partition plate
38: 다이폴 급전부 39: 안테나 급전부 35, 51: 주(Main) 전력 분배기38: dipole feeder 39: antenna feeder 35, 51: main power divider
37, 52: 급전 케이블 36, 53: 부(Sub) 전력 분배기37, 52: feed cable 36, 53: sub power divider
상기 목적을 달성하기 위하여 본 발명은, 수평으로 편평한 평판에 양단부가 소정 각도로 절곡되어 측면으로의 복사에너지를 2차로 여과하여 반사하는 제1 반사수단; 상기 제1 반사수단의 상면에 소정간격으로 수직 배열되며, 이중 편파를 발생시키도록 소정 개소가 한 묶음으로 구비되어 에너지를 복사하는 다수의 복사소자; 상기 다수의 복사소자에 각기 다른 전력을 공급하도록 다수의 포트를 가지는 전력분배수단; 및 상기 제1 반사수단의 상면에 장착되어 상기 복사소자에서 복사되는 에너지를 1차로 여과하여 반사하는 제2 반사수단을 포함하는 쵸크반사기를 가지는 저 사이드로브 이중편파 지향성 안테나를 제공한다.In order to achieve the above object, the present invention includes a first reflecting means for bent at a predetermined angle on the horizontal flat plate at a predetermined angle to reflect the secondary energy by filtering secondary radiation; A plurality of radiating elements arranged vertically on the upper surface of the first reflecting means at predetermined intervals, the plurality of radiating elements radiating energy by being provided in a bundle to generate double polarization; Power distribution means having a plurality of ports to supply different power to the plurality of radiating elements; And a second reflecting means mounted on an upper surface of the first reflecting means, the second reflecting means for first filtering and reflecting the energy radiated from the radiating element.
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;
본 발명에 의한 쵸크 반사기를 갖는 저 사이드로브 이중 편파 지향성 안테나는 VHF, UHF 및 마이크로 웨이브(Microwave) 주파수대에서 하나의 안테나로 편파 다이버시티를 구현한 것으로, 먼저 본 발명은 도2에 도시된 바와 같이 레이돔(21)과 콘넥터(22)를 구비한다.The low side lobe dual polarized directional antenna having the choke reflector according to the present invention implements polarization diversity with one antenna in the VHF, UHF, and Microwave frequency bands. The radome 21 and the connector 22 is provided.
본 실시예에서는 도3a 및 도3b에 도시된 바와 같이, 안테나의 측면으로 에너지가 복사되는 것을 억제하도록 수평으로 편평한 평판에 양단부가 격자형상으로 절곡되어 측면으로의 복사에너지를 여과하여 반사하는 절곡 반사판(31)과, 상기 제1 절곡반사판(31)의 상면에 소정간격으로 수직 배열되며, 이중 편파를 발생시키도록 소정 개소가 한 묶음으로 구비되어 에너지를 복사하는 다수의 복사소자(32)와, 상기 절곡반사판(31)의 배면에 장착되어 다수의 복사소자에 각기 다른 전력을 공급하도록 다수의 포트를 가지는 주전력분배기(35) 및 부전력분배기(36)와, 상기 제1 절곡반사판(31)의 상면에 장착되되, 상기 복사소자(32)의 양측 길이방향으로 수직 배열되어 좌우 이동되면서 상기 복사소자(32)에서 측면으로 복사되는 복사에너지를 여과하여 반사하므로써 수평빔폭을 조절하는 수직 쵸크반사기(33)와, 상기 다수의 복사소자(32) 각각을 구획하도록 그들 사이에 폭방향으로 장착되는 수평 쵸크반사기(34)로 구성된다.In the present embodiment, as shown in Figs. 3A and 3B, the bent reflector plate is bent in a lattice shape at both ends in a horizontal flat plate to suppress the radiation of energy to the side of the antenna to filter and reflect the radiation energy to the side (31) and a plurality of radiating elements (32) arranged vertically on the upper surface of the first bent reflector plate (31) at predetermined intervals and provided in a bundle to generate double polarization to radiate energy; A main power divider 35 and a sub power divider 36 mounted on a rear surface of the bent reflector 31 and having a plurality of ports to supply different power to a plurality of radiating elements, and the first bent reflector 31. It is mounted on the upper surface of the radiation element 32 is arranged vertically in both longitudinal directions of the left and right while moving left and right by filtering and reflecting the radiant energy radiated to the side from the radiation element 32 Consists of a vertical choke reflector 33 and the horizontal choke reflector 34 is mounted in the lateral direction therebetween so as to partition the plurality of radiation elements (32) each for controlling the beam width.
여기서, 상기 다수의 복사소자(32)는 도4에 도시된 바와 같이 상기 복사소자(32)가 하나의 안테나에 두개의 입력을 가지는 사각형 구조로 배열된 4개의 동축다이폴이 결합되되, 상기 각각의 동축다이폴은 하단부에서 상측으로 45°만큼 벌어진 기울기를 가지므로써 이중 편파를 구현할 수 있도록 구성된다. 본 실시예에서는 8개의 동축다이폴 유니트로 이루어진 구조로 되어 있으며, 또한 본 실시예에서는 편파간의 분리도를 높이기 위하여 상기 동축다이폴 유니트 각각의 간격이 0.83λ로 배치된 구조로 되어 있다.Here, the plurality of radiation elements 32 are coupled to four coaxial dipoles arranged in a rectangular structure in which the radiation element 32 has two inputs to one antenna, as shown in FIG. The coaxial dipole is configured to realize a double polarization by having an inclination of 45 ° upward from the lower end. In this embodiment, the structure is composed of eight coaxial dipole units, and in this embodiment, the interval of each of the coaxial dipole units is arranged at 0.83λ in order to increase the separation between polarizations.
한편, 상기 주전력분배기(35) 및 부전력분배기(36)는 도3b, 도5a 및 도5b에 도시된 바와 같이 안테나의 사이드로브를 감소시키기 위해 급전케이블(52)로 인입되는 전력을 제1 포트(54)에 60%를 분배하여 중앙단측의 4개의 복사소자에 공급하고, 제2 포트(55)에 40%를 분배하여 양쪽단측의 4개의 복사소자에 공급할 수 있도록 주 전력분배기(35, 51) 및 부 전력분배기(36, 53)로 이루어진다.Meanwhile, as shown in FIGS. 3B, 5A, and 5B, the main power divider 35 and the sub power divider 36 may receive power introduced into the feed cable 52 to reduce side lobes of the antenna. 60% is distributed to the port 54 and supplied to the four radiating elements on the central end side, and 40% is distributed to the second port 55 to the four radiating elements on the both ends side. 51) and secondary power dividers 36 and 53.
상기와 같이 구성된 본 발명의 안테나는 복사소자로부터 복사된 에너지가 상기 수직 쵸크반사기(33) 및 수평 쵸크반사기(34)에 의해 측면으로의 복사에너지를 1차로 여과하여 반사시키게 되는데, 이때 상기 수직 쵸크 반사기(33)의 위치를 가변시킴에 따라 빔폭을 임의적으로 조절하여 안테나 측면으로의 복사 에너지를 최소화한다. 또한, 상기 수직 쵸크 반사기(33)로부터 복사된 복사 에너지는 다이폴(32)의 정면으로 직접 복사되는 진행파와 반사기에 의한 반사파로 구분되는데, 안테나 전체의 복사 에너지는 진행파와 반사파의 합성으로 나타난다. 따라서, 절곡반사기(31)를 통과하는 복사 에너지는 다수의 수평 쵸크 반사기(33) 및 수직 쵸크반사기(34)에 의하여 1차 감쇄되고 절곡반사기(31) 양 끝단의 절곡된 부위에 의해 2차로 감쇄되므로써, 상기 안테나의 측면 복사에너지가 현저하게 감소되어 동일 기지국내의 인접 안테나에 미치는 간섭을 경감할 수 있다.In the antenna of the present invention configured as described above, the energy radiated from the radiating element is primarily reflected by the vertical choke reflector 33 and the horizontal choke reflector 34 to reflect the radiant energy toward the side, wherein the vertical choke By varying the position of the reflector 33, the beam width is arbitrarily adjusted to minimize the radiant energy to the side of the antenna. In addition, the radiant energy radiated from the vertical choke reflector 33 is divided into a traveling wave which is directly radiated to the front of the dipole 32 and a reflected wave by the reflector. The radiant energy of the entire antenna is represented by a combination of the traveling wave and the reflected wave. Accordingly, the radiant energy passing through the bent reflector 31 is first attenuated by the plurality of horizontal choke reflectors 33 and the vertical choke reflector 34 and secondly attenuated by the bent portions at both ends of the bent reflector 31. As a result, the lateral radiant energy of the antenna can be significantly reduced to reduce interference to adjacent antennas in the same base station.
또한, 상기 수직 쵸크반사기(33) 및 수평 쵸크반사기(34)를 구비함에 따라 안테나 크기가 작아지므로 풍압에 의해 안테나에 가해지는 하중이 감소되며, 안테나의 크기는 변화시키지 않고 수직 쵸크반사기(33)의 위치를 조절하는 것만으로도 안테나의 제반 특성인 반치각, 전후방비, 분리도 등을 향상시키는 것이 가능하다.In addition, since the size of the antenna decreases as the vertical choke reflector 33 and the horizontal choke reflector 34 are provided, the load applied to the antenna is reduced by wind pressure, and the vertical choke reflector 33 does not change the size of the antenna. Just by adjusting the position of the antenna, it is possible to improve the half-angle angle, front-to-back ratio, separation degree, etc., which are all characteristics of the antenna.
한편, 상기 주 전력분배기(35, 51)의 급전케이블(52)로 인입된 전력을 제1 포트(54)에 60% 분배하여 부전력분배기(53)에 의해 중앙단측의 4개의 복사소자에 공급하고, 제2 포트(55)에 40%를 분배하여 또 다른 전력분배기에 의해 양쪽단측의 4개의 복사소자에 공급함으로써 사이드로브(Sidelobe)를 16dB 이상 감소시켰다.Meanwhile, 60% of the power drawn into the feed cables 52 of the main power dividers 35 and 51 is distributed to the first port 54 and supplied to the four radiating elements on the central end side by the sub power divider 53. Then, 40% of the second ports 55 were distributed and supplied to four radiation elements at both ends by another power divider, thereby reducing sidelobe (Sidelobe) by 16 dB or more.
이상에서 설명한 본 발명은 전술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능함은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 있어 명백할 것이다.The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.
전술한 바와 같이 본 발명에 따르면, 하나의 안테나로서 편파 다이버시티를 구현할 수 있으므로 종래 기술에 따른 공간 다이버시티 안테나에 비하여 기지국의 공간 활용도가 높아지며, 종래 기술에 따른 편파 다이버시티의 다른 실시예로써 각기 다른 두 개의 안테나를 사용하는 방식에 비해 그 비용적인 면에서도 획기적으로 절감할 수 있는 효과를 가진다.As described above, according to the present invention, since polarization diversity can be implemented as one antenna, the space utilization of the base station is increased as compared to the spatial diversity antenna according to the prior art, and as another embodiment of the polarization diversity according to the prior art, Compared with the other two antennas, the cost is significantly reduced.
Claims (5)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980027126A KR100269584B1 (en) | 1998-07-06 | 1998-07-06 | Low sidelobe double polarization directional antenna with chalk reflector |
| EP99810600A EP0973231A3 (en) | 1998-07-06 | 1999-07-06 | Dual polarization directional antenna having choke reflectors for minimizing side lobe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980027126A KR100269584B1 (en) | 1998-07-06 | 1998-07-06 | Low sidelobe double polarization directional antenna with chalk reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000007676A true KR20000007676A (en) | 2000-02-07 |
| KR100269584B1 KR100269584B1 (en) | 2000-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980027126A KR100269584B1 (en) | 1998-07-06 | 1998-07-06 | Low sidelobe double polarization directional antenna with chalk reflector |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0973231A3 (en) |
| KR (1) | KR100269584B1 (en) |
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| WO2010151032A2 (en) * | 2009-06-23 | 2010-12-29 | 주식회사 에이스테크놀로지 | Radiating element to be used for an antenna and having an air (or dielectric) feed structure, and power divider electrically connected thereto |
| WO2010151032A3 (en) * | 2009-06-23 | 2011-03-24 | 주식회사 에이스테크놀로지 | Radiating element to be used for an antenna and having an air (or dielectric) feed structure, and power divider electrically connected thereto |
| KR101375420B1 (en) * | 2011-09-26 | 2014-03-18 | 주식회사 에이스테크놀로지 | Radiator having air (or dielectric material) feeding structure in an antenna and power divider connected electrically to the same |
| WO2017155213A1 (en) * | 2016-03-10 | 2017-09-14 | (주)에이엠플러스 | Multistage antenna system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100269584B1 (en) | 2000-10-16 |
| EP0973231A3 (en) | 2001-04-25 |
| EP0973231A2 (en) | 2000-01-19 |
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