KR100563790B1 - Directional coupler - Google Patents

Directional coupler Download PDF

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KR100563790B1
KR100563790B1 KR1020030084966A KR20030084966A KR100563790B1 KR 100563790 B1 KR100563790 B1 KR 100563790B1 KR 1020030084966 A KR1020030084966 A KR 1020030084966A KR 20030084966 A KR20030084966 A KR 20030084966A KR 100563790 B1 KR100563790 B1 KR 100563790B1
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coupler
signal line
line
capacitance
main signal
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KR1020030084966A
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KR20040025651A (en
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심한식
유승하
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심한식
유승하
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
    • H01P5/185—Edge coupled lines

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Abstract

본 발명은 이동 통신용 방향성 커플러에 관한 것으로, 이동통신 선로로부터 신호를 인출하는 커플러에 있어서 방향성의 신호를 인출할 수 있게 하기 위하여 실장 구비되는 콘덴서를 기판상에 설정 정전용량을 갖게 평행을 이루는 두 개의 미세선로 프린팅형성되는 정전용량유지부를 형성한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a directional coupler for mobile communications, wherein a coupler having a set capacitance on a substrate in parallel to have a set capacitance on a substrate is provided in order to be able to withdraw a directional signal in a coupler for extracting a signal from a mobile communication line. It is to form a capacitive retaining portion is formed by printing fine lines.

즉, 본 발명은 상기 정전용량유지부를 메인신호선로(21)에서 인출되어 설정 정전용량을 갖는 길이로 형성된 메인미세선로(11)와 상기 메인미세선로(11)와 일정간극으로 평형을 이루게 커플러신호선로(31)에서 인출된 커플러미세선로(12)로 형성한 것이다.That is, in the present invention, the capacitive maintenance unit is drawn out from the main signal line 21 and has a length having a set capacitance. It is formed by the coupler fine line 12 drawn out from the furnace (31).

따라서, 본 발명은 방향성 향상을 위한 메인신호선로와 커플러신호선로 사이의 정전용량 유지를 수작업에 의하여 실장되는 콘덴서 실장에 의한 것이 아니라 5㎛의 정밀도를 갖는 프린팅형성과정을 통하여 설정 정전용량을 갖는 길이로 평행을 이루게 형성되는 미세선로로 형성하므로서 제품의 방향성이 향상되고 삽입손실과 반사손실이 최소화되는 것이다.Therefore, the present invention is not a capacitor mounted by hand to maintain the capacitance between the main signal line and the coupler signal line for improving the directionality, but the length having the set capacitance through the printing forming process with a precision of 5㎛ By forming a fine line that is formed parallel to the furnace, the direction of the product is improved, insertion loss and reflection loss is minimized.

이동 통신용 커플러Coupler for Mobile Communication

Description

이동 통신용 방향성 커플러{Directional coupler}Directional coupler for mobile communication

도 1 은 종래 기술에 따른 일 실시예를 보인 평면도.1 is a plan view showing an embodiment according to the prior art.

도 2 는 본 발명에 따른 일 실시예를 보인 평면도.2 is a plan view showing an embodiment according to the present invention.

도 3 은 본 발명에 따른 일 실시예를 보인 정전유지부의 상세도.Figure 3 is a detailed view of the electrostatic maintenance unit showing an embodiment according to the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

11 : 메인미세선로 12 : 커플러미세선로11: Main fine line 12: Coupler fine line

21 : 메인신호선로 22 : 입력콘넥타부21: main signal line 22: input connector

23 : 출력콘넥타부 23: output connector

31 : 커플러신호선로 32 : 커플러콘넥타부31: Coupler signal line 32: Coupler connector

33 : 저항부 34 : 콘덴서33: resistor 34: capacitor

40 : 그라운드부40: ground portion

본 발명은 이동 통신용 방향성 커플러에 관한 것으로, 더욱 상세하게는 이동통신 선로로부터 신호를 인출하는 커플러에 있어서 방향성의 신호를 인출할 수 있게 하기 위하여 실장 구비되는 콘덴서를 기판상에 설정 정전용량을 갖게 평행을 이루는 두 개의 미세선로 프린팅 형성되는 정전용량유지부를 형성하여 제조공정을 단순화하며 가공오차를 최소화하여 방향성을 향상시키고 삽입손실 및 반사손실을 최소화할 수 있도록 함을 목적으로 한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a directional coupler for mobile communication, and more particularly, a capacitor mounted in order to be able to extract a directional signal in a coupler for extracting a signal from a mobile communication line has a set capacitance on a substrate. It aims to simplify the manufacturing process by minimizing the processing error by forming the capacitive retaining portion formed by printing two fine lines forming a minimization to improve the orientation and minimize the insertion loss and reflection loss.

일반적으로 통신선로로부터 신호를 인출할 수 있게한 방향성 커플러는 도 1 에 도시된 바와 같이 신호가 이동할 수 있게 기판상에 프린팅 형성된 메인신호선로(21)와, 상기 메인신호선로(21)의 양단에 각기 구비되는 입력콘넥타부(22)와 출력콘넥타부(23) 및 상기 메인신호선로(21)와 평행하게 기판상에 실장되어 메인신호선로(21)를 통과하는 신호를 인출할 수 있게한 커플러신호선로(31)와, 상기 커플러신호선로(31)의 일측에 구비되는 커플러콘넥타부(32)와, 상기 커플러신호선로(31)의 타측에 구비되어 기판의 그라운드부(40)와 결선되어 내부 저항값을 유지시키는 저항부(33)와, 상기 커플러신호선로(31)의 양단에는 라제쉬 몬기아(Rajesh Mongia)가 저서한 Rf and Microwave Coupled-Line Circuits p209~212에 소개한 바와 같이 정전용량에 의하여 메인신호선로(21)를 통한 신호의 인출과정에 있어 메인신호선로(21)를 따라 일측 방향으로 이동되는 주 신호만을 방향성을 갖게 인출함과 더불어 삽입손실과 반사손실이 최소화되게 하는 0.5pF 이하의 콘덴서(34)로 구성한 것이다.In general, a directional coupler capable of extracting a signal from a communication line has a main signal line 21 formed on a substrate so that the signal can move as shown in FIG. 1, and both ends of the main signal line 21. Coupler signal lines mounted on the substrate in parallel with the input connector portion 22 and the output connector portion 23 and the main signal line 21, respectively, to draw signals passing through the main signal line 21, respectively. A furnace 31, a coupler connector 32 provided at one side of the coupler signal line 31, and the other side of the coupler signal line 31 are connected to the ground portion 40 of the substrate, thereby providing an internal resistance. Both ends of the resistor portion 33 and the coupler signal line 31 maintain a value, as shown in Rf and Microwave Coupled-Line Circuits p209-212 by Rajesh Mongia. Of the signal through the main signal line 21 In the drawing process, only the main signal moving in one direction along the main signal line 21 is drawn out to have directionality, and a condenser 34 of 0.5 pF or less which minimizes insertion loss and reflection loss.

상기한 바와 같이 구성된 방향성 커플러는 입력콘넥타부(22)를 통하여 입력된 신호가 메인신호선로(21)를 따라 이동되는 과정에 있어 유도작용에 의하여 커플러신호선로(31)로 이동되며 이때, 콘덴서(34)가 적정한 정전용량을 유지하며 인출 되는 신호가 방향성을 갖게 하는 것이다.The directional coupler configured as described above is moved to the coupler signal line 31 by an induction action in a process in which a signal input through the input connector 22 is moved along the main signal line 21. 34) maintains proper capacitance and directs the signal being drawn.

한편, 상기 입력콘넥타부(22)와 출력콘넥타부(23) 및 커플러콘넥타부(32)는 통신시호가 직접전달되는 케이블과 직접연결되거나, 통신신호를 가공하는 통신기기의 기판상에 직접 접속되게 실시하여 사용하기도 하는 것이다.On the other hand, the input connector 22, the output connector 23 and the coupler connector 32 is directly connected to the cable to which the communication signal is directly transmitted, or to be directly connected to the substrate of the communication device processing the communication signal It is also used to practice.

그러나, 상기한 바와 같은 종래의 방향성 커플러에서 요구되는 콘덴서(34)는 그 제조가 용이하지 않으며, 현재 제작되는 콘덴서(34)의 허용오차가 ±0.1pF 이어서 실제 제작시 방향성의 오차가 크게 발생하는 등의 문제점이 있었다.However, the condenser 34 required by the conventional directional coupler as described above is not easy to manufacture, and the tolerance of the currently produced condenser 34 is ± 0.1 pF, which causes a large directional error in actual manufacturing. There was a problem.

또한, 커플러신호선로(31)와 메인신호선로(21) 사이에 콘덴서(34)를 실장함에 있어서 사용되는 납의 양에 따라서도 정전용량의 편차가 발생하여 제작된 방향성 커플러의 삽입손실과 반사손실이 변화되고 방향성이 저하되는 등의 문제점이 있었다.In addition, capacitance variation also occurs depending on the amount of lead used in mounting the capacitor 34 between the coupler signal line 31 and the main signal line 21, so that the insertion loss and reflection loss of the directional coupler produced are increased. There are problems such as change and deterioration of orientation.

이에, 본 발명은 상술한 문제점을 해결하기 위하여 창출한 것으로, 메인신호선로와 커플러신호선로에서 서로 평행하게 형성되어 설정 정전용량을 유지할 수 있게 미세선로로 이루어진 정전용량유지부를 형성한 것이다.
Accordingly, the present invention has been made to solve the above-mentioned problems, and is formed in the main signal line and the coupler signal line in parallel with each other to form a capacitance holding unit made of a fine line to maintain the set capacitance.

이하, 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

본 발명은 기판에 프린팅 형성되는 선로를 이용하여 메인신호선로와 커플러신호선로 사이에 설정 정전용량을 유지시켜 방향성을 향상키시며 삽입손실과 반사손실을 최소화 할 수 있게 한 것으로, 신호가 이동할 수 있게 기판상에 프린팅 형성된 메인신호선로(21)와, 상기 메인신호선로(21)의 양단에 각기 구비되는 입력콘넥타부(22)와 출력콘넥타부(23) 및 상기 메인신호선로(21)와 평행하게 기판상에 실장되어 메인신호선로(21)를 통과하는 신호를 인출할 수 있게한 커플러신호선로(31)와, 상기 커플러신호선로(31)의 일측에 구비되는 커플러콘넥타부(32)와, 상기 커플러신호선로(31)의 타측에 구비되어 기판의 그라운드부(40)와 결선되어 내부 저항값을 유지시키는 저항부(33)로 이루어진 방향성 커플러에 있어서, 도 2와 도 3 에 도시된 바와 같이 메인신호선로(21)와 커플러신호선로(31)의 양측 사이에 일정 정전용량을 갖는 정전용량유지부를 형성한 것으로, 상기 정전용량유지부는 메인신호선로(21)에서 인출되어 설정 정전용량을 갖는 길이로 형성된 메인미세선로(11)와 상기 메인미세선로(11)와 일정간극으로 평형을 이루게 커플러신호선로(31)에서 인출된 커플러미세선로(12)로 형성한 것이다.The present invention improves the directionality by minimizing the insertion loss and the return loss by maintaining the set capacitance between the main signal line and the coupler signal line by using the line printed on the substrate to enable the signal to move The main signal line 21 printed on the substrate, and parallel to the input connector 22 and the output connector 23 and the main signal line 21 which are provided at both ends of the main signal line 21, respectively. A coupler signal line 31 mounted on a substrate and capable of extracting a signal passing through the main signal line 21, a coupler connector 32 provided on one side of the coupler signal line 31; In the directional coupler which is provided on the other side of the coupler signal line 31 and is connected to the ground portion 40 of the substrate to maintain the internal resistance value, as shown in FIGS. Signal line (2 1) and a capacitance holding part having a constant capacitance is formed between both sides of the coupler signal line 31, the capacitance holding part is drawn out of the main signal line 21 to have a length having a set capacitance The line 11 and the main fine line 11 are formed of a coupler fine line 12 drawn from the coupler signal line 31 to be balanced in a predetermined gap.

이하, 본 발명의 작용에 대하여 설명하면 다음과 같다.Hereinafter, the operation of the present invention will be described.

상기한 바와 같이 메인신호선로(21)와 커플러신호선로(31) 사이에 설정 정전용량을 갖게 메인미세선로(11)와 커플러미세선로(12)로 이루어진 정전용량유지부를 형성한 본 발명은 수작업이 아닌 정밀도가 5㎛의 정밀도를 갖는 프린팅형성과정을 통하여 형성하므로서 정전용량이 ±1%의 오차내로 형성되는 것이다.As described above, the present invention has a capacitance holding unit including a main fine line 11 and a coupler fine line 12 having a set capacitance between the main signal line 21 and the coupler signal line 31. In other words, the capacitance is formed through a printing forming process having a precision of 5 μm, so that the capacitance is formed within an error of ± 1%.

한편, 본 발명에 형성된 각각의 콘넥타부는 통신신호가 이동되는 케이블과 직접 결속되게 실시하기도 하나, 통신신호를 가공하는 통신기기의 기판상에 접속되게 실시하여 사용할 수 있는 것이다.On the other hand, each connector formed in the present invention may be directly connected to the cable to which the communication signal is moved, but may be implemented to be connected to the substrate of the communication device processing the communication signal.

따라서, 본 발명은 방향성 향상을 위한 메인신호선로와 커플러신호선로 사이의 정전용량 유지를 수작업에 의하여 실장되는 콘덴서 실장에 의한 것이 아니라 5㎛의 정밀도를 갖는 프린팅형성과정을 통하여 설정 정전용량을 갖는 길이로 평행을 이루게 형성되는 미세선로로 형성하므로서 제품의 방향성이 향상되고 삽입손실과 반사손실이 최소화되는 매우 유용한 것이다.Therefore, the present invention is not a capacitor mounted by hand to maintain the capacitance between the main signal line and the coupler signal line for improving the directionality, but the length having the set capacitance through the printing forming process with a precision of 5㎛ It is very useful that the direction of the product is improved and the insertion loss and the reflection loss are minimized by forming the fine lines that are formed in parallel with each other.

Claims (1)

신호가 이동할 수 있게 기판상에 프린팅 형성된 메인신호선로(21)와, 상기 메인신호선로(21)의 양단에 각기 구비되는 입력콘넥타부(22)와 출력콘넥타부(23) 및 상기 메인신호선로(21)와 평행하게 기판상에 실장되어 메인신호선로(21)를 통과하는 신호를 인출할 수 있게한 커플러신호선로(31)와, 상기 커플러신호선로(31)의 일측에 구비되는 커플러콘넥타부(32)로 이루어진 방향성 커플러에 있어서;A main signal line 21 printed on the substrate so that a signal can move, an input connector 22 and an output connector 23, and the main signal line, respectively provided at both ends of the main signal line 21. A coupler signal line 31 mounted on the substrate in parallel with the substrate 21 so as to extract a signal passing through the main signal line 21, and a coupler connector portion provided at one side of the coupler signal line 31; 32) a directional coupler; 상기 메인신호선로(21)와 커플러신호선로(31)의 양측 사이에 일정 정전용량을 갖는 정전용량유지부를 형성하되,A capacitance holding part having a constant capacitance is formed between both sides of the main signal line 21 and the coupler signal line 31, 상기 정전용량유지부는 메인신호선로(21)에서 인출되어 설정 정전용량을 갖는 길이로 형성된 메인미세선로(11)와 상기 메인미세선로(11)와 일정간극으로 평형을 이루게 커플러신호선로(31)에서 인출된 커플러미세선로(12)로 형성한 것을 특징으로 하는 이동 통신용 방향성 커플러.The capacitance holding part is drawn out from the main signal line 21 to form a length having a set capacitance, and the coupler signal line 31 to be balanced with the main micro line 11 at a predetermined gap. A directional coupler for mobile communication, characterized in that formed by a drawn coupler fine line (12).
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677399A (en) * 1985-04-26 1987-06-30 Etat Francais Represente Par Le Ministre Des Ptt (Centre National D'etudes Des Telecommunications) Wide band directional coupler for microstrip lines
JPS63263801A (en) * 1987-04-21 1988-10-31 Fujitsu Ltd Microstrip line type directional coupler
KR20020021678A (en) * 2000-06-09 2002-03-21 다니구찌 이찌로오, 기타오카 다카시 Directional coupler
KR20020071147A (en) * 2001-03-05 2002-09-12 주식회사 네텔 High directivity directional coupler using microstrip line

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677399A (en) * 1985-04-26 1987-06-30 Etat Francais Represente Par Le Ministre Des Ptt (Centre National D'etudes Des Telecommunications) Wide band directional coupler for microstrip lines
JPS63263801A (en) * 1987-04-21 1988-10-31 Fujitsu Ltd Microstrip line type directional coupler
KR20020021678A (en) * 2000-06-09 2002-03-21 다니구찌 이찌로오, 기타오카 다카시 Directional coupler
KR20020071147A (en) * 2001-03-05 2002-09-12 주식회사 네텔 High directivity directional coupler using microstrip line

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