KR940011752B1 - Lnb for satelite broadcasting receiver - Google Patents
Lnb for satelite broadcasting receiver Download PDFInfo
- Publication number
- KR940011752B1 KR940011752B1 KR1019910021704A KR910021704A KR940011752B1 KR 940011752 B1 KR940011752 B1 KR 940011752B1 KR 1019910021704 A KR1019910021704 A KR 1019910021704A KR 910021704 A KR910021704 A KR 910021704A KR 940011752 B1 KR940011752 B1 KR 940011752B1
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- KR
- South Korea
- Prior art keywords
- low noise
- satellite
- probe
- block converter
- noise block
- Prior art date
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Waveguide Aerials (AREA)
- Structure Of Receivers (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
제1도는 종래의 위성방송수신시스템의 계통도.1 is a system diagram of a conventional satellite broadcasting reception system.
제2도는 종래의 위성방송수신시스템의 계통도.2 is a schematic diagram of a conventional satellite broadcasting reception system.
제3도는 본 발명 위성방송수신용 저잡음블럭변환기의 분해사시도.3 is an exploded perspective view of a low noise block converter for satellite broadcasting according to the present invention;
제4도는 본 발명 위성방송수신용 저잡음블럭변환기의 단면도.4 is a cross-sectional view of a low noise block converter for satellite broadcasting reception of the present invention.
제5도는 제4도의 A-A선 단면도.5 is a cross-sectional view taken along the line A-A of FIG.
제6도는 본 발명의 타실시예도.6 is another embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 피드혼 2 : 직각신호분배기1: feed horn 2: right angle signal splitter
3 : 위성방송수신기 4 : 편파선택기3: satellite broadcasting receiver 4: polarization selector
5 : 케이스 6 : 환형안테나5: case 6: annular antenna
6' : 환형안테나기판 7 : 금속도체부6 ': annular antenna substrate 7: metal conductor part
8,9 : 저잡음신호처리회로 10,11,14 : 회로기판8,9: low noise signal processing circuit 10,11,14: circuit board
12,13 : 제1, 제2프로브 a : 수직편파12,13: 1st, 2nd probe a: vertical polarization
b : 수평편파 LNBa,LNBb : 저잡음블럭변환기b: horizontal polarization LNBa, LNBb: low noise block converter
본 발명은 위성방송수신용 저잡음블럭변환기에 관한 것으로, 특히, 하나의 저잡음블럭변환기로 서로다른 2개의 위성편파신호를 동시에 각각 분리수신할 수 있도록 한 위성방송수신용 저잡음블럭변환기에 관한 것이다.The present invention relates to a low noise block converter for satellite broadcast reception, and more particularly, to a low noise block converter for satellite broadcast reception capable of simultaneously receiving two different satellite polarized signals simultaneously with one low noise block converter.
일반적으로 위성방송수신시스템은 세계의 각 지역에 따라 위성방송주파수의 할당된 대역과 주파수분포가 다르기 때문에, 각 지역에 따라 그에 해당하는 저잡음블럭변환기를 사용하여야 하고, 위성에서는 상기 각 지역에 따른 그에 해당 주파수신호에 대하여 서로다른 2개의 위성편파신호 즉, 수직편파, 수평편파신호를 각각 발사하게 된다.In general, since the satellite broadcasting receiver system has different allocated bands and frequency distributions according to each region of the world, a low noise block converter corresponding to each region should be used. Two different satellite polarization signals, that is, vertical polarization and horizontal polarization signals, are emitted to the corresponding frequency signal.
따라서 종래에는 상기 서로다른 2개의 위성편파신호를 수신하기 위하여 제1도에 도시한 바와같이, 위성안테나(ANT)에 피드혼(1)과 직각신호분배기(2)를 설치하여 수직편파(a)과 수평편파(b)로 분리한 후, 2개의 저잡음블럭변환기(LNBa)(LNBb)를 설치하고 위성방송수신기(3)를 통해 TV와 연결하거나, 제2도에 도시한 바와같이, 피드혼(1)에 직각신호분배기(2)에 대신에 편파선택기(4)를 설치하여 수직·수평편파를 분리선택한 후, 저잡음블럭변환기(LNB)를 통해 위성방송수신기(3)를 TV에 연결하여 사용해왔으나, 상기 전자의 경우, 2개의 저잡음블럭변환기(LNBa)(LNBb)가 필요로 하게 되어 생산원가를 크게 상승시키게 되고, 또한 피드혼(1), 직각신호분배기(2), 저잡음블럭변환기(LNBa)(LNBb)의 연결구조가 복잡해지는가 하면, 상기 후자의 경우에는 편파선택기(4)를 사용하게 되므로 그 연결구조는 간단한 반면에, 고가이므로 경제적인 부담을 가중시키는가하면 상기 편파선택기(4)는 수직·수평편파중 어느 하나만을 선택하여 볼 수 밖에 없어 동시에 2개 신호수신이 블가능한 선택의 폭이 없는 문제점을 가지고 있다.Therefore, conventionally, as shown in FIG. 1, in order to receive the two different satellite polarization signals, a vertically polarized wave (a) is provided by installing a feed horn 1 and a right angle signal divider 2 in the satellite antenna ANT. After separating into two and horizontal polarization (b), two low-noise block converters (LNBa) (LNBb) are installed and connected to the TV via the satellite broadcast receiver 3, or as shown in FIG. In 1), instead of the right-angle signal divider (2), a polarization selector (4) was installed to separate and select vertical and horizontal polarization, and the satellite broadcasting receiver (3) was connected to a TV through a low noise block converter (LNB). In the former case, two low noise block converters (LNBa) (LNBb) are required, which greatly increases the production cost, and also feed horn (1), quadrature signal splitter (2), and low noise block converter (LNBa). The connection structure of the (LNBb) becomes complicated. In the latter case, the polarization selector 4 is used. Therefore, the connection structure is simple, while it is expensive, which adds to the economic burden, and the polarization selector 4 has no choice but to select only one of the vertical and horizontal polarizations. There is no problem.
따라서, 본 발명의 목적은 1개의 저잡음블럭변환기로 서로다른 2개의 위성편차신호를 동시에 수신할 수 있는 저잡음블럭변환기를 제공하는데 있으며, 상기의 목적을 실현하기 위하여, 본 발명은 케이스 내부에 피드혼, 환형안테나, 단락부인 금속도체를 배열설치하고, 상기 환형안테나와 금속도체상에는 다이폴안테나용 제1, 제2프로브를 통해 제1, 제2저잡음블럭변환기판을 각각 설치한 것을 특징으로 한다.Accordingly, an object of the present invention is to provide a low noise block converter capable of simultaneously receiving two different satellite deviation signals with one low noise block converter. To realize the above object, the present invention provides a feed horn inside a case. And an annular antenna and a metal conductor that is a short circuit portion are arranged, and first and second low noise block conversion substrates are installed on the annular antenna and the metal conductor through first and second probes for dipole antennas, respectively.
이하 첨부된 도면에 의거 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제3도 내지 제5도를 도시한 바와같이, 직사각형체의 케이스(5) 내부 일측면으로부터 위성으로부터 위성신호를 수신하는 원통형도파관인 피드혼(1)과 소정거리를 두고 설치되는 기판(6')상에 형성된 환형안테나(6)와, 이 환형안테나(6)로부터 동일선상에 후방으로 소정거리를 두고 설치되는 단락부인 금속도체부(7)와, 상기 환형안테나(6)에서 수신된 위성신호를 분리처리하는 저잡음신호처리회로(8)(9)가 인쇄된 회로기판(10)(11)과, 상기 환형안테나(6)와 서로 직각방향으로 설치되고 수신되는 위성신호를 상기 저잡음신호처리회로(8)(9)에 전달하는 다이폴안테나용 제1프로브(12), 제2프로브(13)로 설치 구성시켜서 된 것이다.3 to 5, the substrate 6 'is provided at a predetermined distance from the feed horn 1, which is a cylindrical waveguide for receiving satellite signals from satellites from one side of the inside of the rectangular case 5; The annular antenna (6) formed on the cross-section, the metal conductor portion (7) which is a short-circuit portion provided at a predetermined distance rearward on the same line from the annular antenna (6), and the satellite signal received from the annular antenna (6). The low noise signal processing circuit is provided with a low-noise signal processing circuit (8) and a circuit board (10) (11) on which the low noise signal processing circuit (8) (9) is separated, and satellite signals installed and received at right angles to the annular antenna (6). (8) and (9), the first probe 12 and the second probe 13 for dipole antennas to be delivered are provided and configured.
상기와 같이 구성된 본 발명의 작용효과를 설명하면 다음과 같다.Referring to the effects of the present invention configured as described above are as follows.
먼저, 위성으로부터 서로다른 2개의 위성편차신호 즉 수직편파신호와 수평편파신호가 발사되면, 위성방송수신용 저잡음블럭변환기의 원형도파관인 피드혼(1)을 통해서 수신되면서 환형안테나(6)에 인입되게 되고, 이 인입된 서로다른 2개의 위상편차신호는 상기 안테나(6)와 서로 직각방향으로 설치된 다이폴안테나용 제1프로브(12)와 제2프로브(13) 각각을 통해서 각각 분리되어 각각의 회로기판(10)(11)에 인쇄된 저잡음신호처리회로(8)(9)에 분리수신되게 되므로, 상기 저잡음신호처리회로(8)(9)에서는 한번에 상기 서로다른 2개의 위성편차신호인 수직편파신호와 수평편파신호를 분리처리할 수 있게 되는 것이다.First, when two different satellite deviation signals, that is, a vertical polarization signal and a horizontal polarization signal, are received from a satellite, they are received through a feed horn (1), which is a circular waveguide of a low noise block converter for satellite broadcasting, and is introduced into the annular antenna (6). The two different phase shift signals introduced therein are respectively separated through the first probe 12 and the second probe 13 for the dipole antenna installed at right angles to the antenna 6, respectively. Since it is separately received by the low noise signal processing circuits 8 and 9 printed on the substrates 10 and 11, the low noise signal processing circuits 8 and 9 vertically polarize the two different satellite deviation signals at once. The signal and the horizontal polarized signal can be processed separately.
제6도는 본 발명의 타실시예도로서, 제5도에서 환형안테나(6)와 서로 직각방향으로 설치된 다이폴안테나용 제1프로브(12)와 제2프로브(13)에 저잡음신호처리회로(8)(9)가 각각 인쇄된 하나의 회로기판(14)을 설치 접속하여서 된 것이다.FIG. 6 is another embodiment of the present invention. In FIG. 5, the low noise signal processing circuit 8 of the first probe 12 and the second probe 13 for the dipole antenna installed at right angles with the annular antenna 6 is shown in FIG. The circuit board 14 in which 9 is printed is installed and connected, respectively.
이하 동작과정은 동일하므로 생략하기로 한다.Since the operation process is the same, it will be omitted.
이상에서 설명한 바와같이, 본 발명은 위성으로부터 발사되는 서로다른 2개의 위성편차신호를 하나의 저잡음블럭변환기로서 동시에 분리수신할 수 있도록 함으로써, 종래에 서로다른 위성편차신호를 수신하기 위하여, 두개의 저잡음블럭변환기를 연결하거나 또는 고가의 편파선택기를 사용하지 않고도 간단용이하게 동시에 분리수신할 수 있어, 설치에 따른 비용이나 번거로움을 해소해줄 수 있는 효과를 제공하게 되는 것이다.As described above, the present invention allows two different satellite deviation signals emitted from a satellite to be simultaneously received as one low noise block converter, so that two low noise signals are conventionally received in order to receive different satellite deviation signals. It is possible to separate and receive at the same time easily and easily without connecting a block converter or using an expensive polarization selector, thereby providing the effect of eliminating the cost and inconvenience of installation.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910021704A KR940011752B1 (en) | 1991-11-29 | 1991-11-29 | Lnb for satelite broadcasting receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019910021704A KR940011752B1 (en) | 1991-11-29 | 1991-11-29 | Lnb for satelite broadcasting receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930011470A KR930011470A (en) | 1993-06-24 |
| KR940011752B1 true KR940011752B1 (en) | 1994-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910021704A KR940011752B1 (en) | 1991-11-29 | 1991-11-29 | Lnb for satelite broadcasting receiver |
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| Country | Link |
|---|---|
| KR (1) | KR940011752B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6944878B1 (en) * | 1999-07-19 | 2005-09-13 | Thomson Licensing S.A. | Method and apparatus for selecting a satellite signal |
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1991
- 1991-11-29 KR KR1019910021704A patent/KR940011752B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR930011470A (en) | 1993-06-24 |
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