KR950012998A - Low noise frequency converter - Google Patents

Low noise frequency converter Download PDF

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Publication number
KR950012998A
KR950012998A KR1019930022822A KR930022822A KR950012998A KR 950012998 A KR950012998 A KR 950012998A KR 1019930022822 A KR1019930022822 A KR 1019930022822A KR 930022822 A KR930022822 A KR 930022822A KR 950012998 A KR950012998 A KR 950012998A
Authority
KR
South Korea
Prior art keywords
low noise
amplifier
transmission line
frequency converter
signal
Prior art date
Application number
KR1019930022822A
Other languages
Korean (ko)
Inventor
김원호
Original Assignee
윤종용
삼성전기 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 윤종용, 삼성전기 주식회사 filed Critical 윤종용
Priority to KR1019930022822A priority Critical patent/KR950012998A/en
Publication of KR950012998A publication Critical patent/KR950012998A/en

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Abstract

본 발명은 저잡은 주파수 변환기에 관련한다.The present invention relates to a low noise frequency converter.

종래에는 저잡음 주파수 변환기의 저잡음증폭단(200)을 한 PCB상에 패턴화하여 고정된 증폭이득만 구현하였고, 필요에 따라 고증폭이득을 얻고자 하면 전송라인과 직렬로 연결된 증폭기에 추가된 커플링콘덴서와 증폭기를 설치하여 RF증폭이득을 얻어왔다.Conventionally, the low noise amplifier stage 200 of the low noise frequency converter is patterned on a PCB to implement only a fixed amplification gain, and if necessary, to obtain a high amplification gain, a coupling capacitor added to the amplifier connected in series with the transmission line. RF amplifier has been gained by installing and amplifier.

본 발명은 한 PCB상에 RF증폭의 고이득과 저이득을 구현할 수 있는 저잡음 증폭단을 일체로 설치하여 필요에 따라 해당경로의 전송선로에 칩마운팅하므로써 선택적인 RF증폭이득을 얻는 것이 가능해진다.According to the present invention, it is possible to obtain a selective RF amplification gain by integrally installing a low noise amplifier stage capable of realizing a high gain and a low gain of RF amplification on one PCB and chip mounting the transmission line of the corresponding path as necessary.

Description

저잡음 주파수 변환기Low noise frequency converter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 회로블럭다이어그램,1 is a conventional circuit block diagram,

제2도는 본 발명의 회로블럭다이어그램.2 is a circuit block diagram of the present invention.

Claims (1)

파라볼라 안테나에서 수신된 RF신호를 제1,2,3,4전송선로 (10,30,40,50)및 제1,2RF증폭기(20,50)를 통하여 증폭하는 저잡음증폭단(200)과, 상기 저잡음증폭단(200)의 RF증폭신호를 발진주파수와 믹싱하여 IF신호로 변환시키는 믹서(300)와, 상기 믹서(300)로 발진주파수를 출력하는 발진기(400)와, 상기 믹서(300)의 IF 신호를 2단증폭하는 2단 IF증폭단(500)을 포함하는 저잡음 주파수 변환기에 있어서, 상기 제2전송선로(30)의 RF신호가 커플링콘덴서(C2)를 거쳐 제5전송선로(70)로 제공되게 구성하고, 상기 제5전송선로(70)의 RF신호는 제3RF증폭기(80)로 제공되게 구성하고, 상기 제3RF증폭기(80)의 증폭된 RF신호는 제6전송선로(90)를 거쳐 커플링콘덴서(C3)를 통하여 제3전송선로(40)로 제공되게 구성된 고이득 증폭단(100)이 더 마련된 것을 특징으로 하는 저잡음 주파수 변환기.A low noise amplifier stage 200 for amplifying the RF signal received from the parabola antenna through the first, second, third and fourth transmission lines 10, 30, 40 and 50 and the first and second RF amplifiers 20 and 50; A mixer 300 for mixing the RF amplification signal of the low noise amplifier stage 200 with an oscillation frequency and converting it into an IF signal, an oscillator 400 for outputting an oscillation frequency to the mixer 300, and the IF of the mixer 300. in a low noise frequency converter comprising a two-stage IF amplifier stage 500 to a signal two-stage amplifier, a fifth transmission line via a coupling capacitor (C 2) RF signals from the to the second transmission line 30 (70) The RF signal of the fifth transmission line 70 is configured to be provided to the third RF amplifier 80, and the amplified RF signal of the third RF amplifier 80 is the sixth transmission line 90 The low-noise frequency converter, characterized in that the high-gain amplifier stage 100 is further provided to be provided to the third transmission line (40) through the coupling capacitor (C 3 ). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930022822A 1993-10-30 1993-10-30 Low noise frequency converter KR950012998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930022822A KR950012998A (en) 1993-10-30 1993-10-30 Low noise frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930022822A KR950012998A (en) 1993-10-30 1993-10-30 Low noise frequency converter

Publications (1)

Publication Number Publication Date
KR950012998A true KR950012998A (en) 1995-05-17

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ID=66824973

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930022822A KR950012998A (en) 1993-10-30 1993-10-30 Low noise frequency converter

Country Status (1)

Country Link
KR (1) KR950012998A (en)

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E601 Decision to refuse application