KR950012998A - Low noise frequency converter - Google Patents
Low noise frequency converter Download PDFInfo
- 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
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- Superheterodyne Receivers (AREA)
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
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)
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 |
Family
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) |
-
1993
- 1993-10-30 KR KR1019930022822A patent/KR950012998A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |