KR940027346A - Mutual Interference Suppression Circuit of Double Low Noise Block Converter - Google Patents

Mutual Interference Suppression Circuit of Double Low Noise Block Converter Download PDF

Info

Publication number
KR940027346A
KR940027346A KR1019930008158A KR930008158A KR940027346A KR 940027346 A KR940027346 A KR 940027346A KR 1019930008158 A KR1019930008158 A KR 1019930008158A KR 930008158 A KR930008158 A KR 930008158A KR 940027346 A KR940027346 A KR 940027346A
Authority
KR
South Korea
Prior art keywords
mutual interference
stage
low noise
suppression circuit
interference suppression
Prior art date
Application number
KR1019930008158A
Other languages
Korean (ko)
Inventor
이민재
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 KR1019930008158A priority Critical patent/KR940027346A/en
Publication of KR940027346A publication Critical patent/KR940027346A/en

Links

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

본 발명은 더블 LNB에서의 상호 간섭현상을 배제시키기 위한 상호 간섭 억제회로에 관련한다.The present invention relates to a mutual interference suppression circuit for eliminating mutual interference in a double LNB.

기존의 더블 LNB의 경우 수직 및 수평 상호간에 윌킨슨 디바이더를 통한 신호 리키지로 인하여 양질의 IF 신호를 얻을 수 없어 최종 TV 화면의 질이 떨어지고 있다.In the case of the conventional double LNB, the quality of the final TV screen is deteriorated because high quality IF signals cannot be obtained due to signal leakage through the Wilkinson divider between the vertical and the horizontal.

본 발명은 믹서단에 제공되는 OSC단의 출력이 윌킨슨 디바이더로 분할된 후길이의 마이크로스트립의 패턴화에 따른 BPF를 거치도록 설계함으로써, 수직 및 수평 신호간의 상호 간섭현상을 방지하고 있다.In the present invention, after the output of the OSC stage provided to the mixer stage is divided into Wilkinson dividers Designed to pass through the BPF according to the patterning of the length of the microstrip, to prevent mutual interference between the vertical and horizontal signals.

Description

더블 저잡음 블록콘버터의 상호 간섭 억제회로Mutual Interference Suppression Circuit of Double Low Noise Block Converter

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

제 2 도는 본 발명의 더블 LNB의 시스템의 블럭 구성도, 제 3 도는 본 발명에 따라 기판에 적용된 BPF의 레이 아웃도, 제 4 도는 본 발명에 적용된 BPF의 주파수특성도.2 is a block diagram of a system of a double LNB of the present invention, FIG. 3 is a layout diagram of a BPF applied to a substrate according to the present invention, and FIG. 4 is a frequency characteristic diagram of a BPF applied to the present invention.

Claims (2)

수직 및 수평 입력신호(Vin, Hin)를 증폭하는 LNA단(10, 16)과, 윌킨스 디바이스(14)를 거친 OSC단(13)의 발진회로 상기 LNA단(10, 16)의 출력신호를 믹싱하여 IF 신호를 발생하는 믹서단(11, 17)과, 상기 믹서단(11, 17)의 IF 출력을 증폭하는 IF 앰프단(12, 18)을 포함하는 더블 LNB에 있어서, 상기 윌킨슨 디바이더(14)로 분할된 OSC단(13)의 발진신호가 해당발진주파수의 BPF(19, 20)를 거쳐 믹서단(11, 17)으로 제공되게 구성하는 것을 특징으로 하는 더블 저잡음 블럭 콘버터의 상호 간섭억제회로.Mixing the output signals of the LNA stages 10 and 16 with the oscillation circuits of the LNA stages 10 and 16 for amplifying the vertical and horizontal input signals Vin and Hin, and the OSC stage 13 through the Wilkins device 14. The Wilkinson divider 14 in a double LNB comprising a mixer stage 11, 17 for generating an IF signal and an IF amplifier stage 12, 18 for amplifying the IF output of the mixer stage 11, 17. The oscillation signal of the OSC stage 13 divided by) is provided to the mixer stages 11 and 17 via the BPFs 19 and 20 of the corresponding oscillation frequency. . 제 1 항에 있어서, 상기 BPF(19, 20)는길이의 마이크로 스트립을 계단형으로 기판상에 패턴닝하여 형성하는 것을 특징으로 하는 더블 저잡음 블럭 콘버터의 상호 간섭 억제 회로.The method of claim 1, wherein the BPF (19, 20) is A mutual low interference block circuit of a double low noise block converter, characterized in that a micro strip of length is patterned on a substrate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930008158A 1993-05-12 1993-05-12 Mutual Interference Suppression Circuit of Double Low Noise Block Converter KR940027346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930008158A KR940027346A (en) 1993-05-12 1993-05-12 Mutual Interference Suppression Circuit of Double Low Noise Block Converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930008158A KR940027346A (en) 1993-05-12 1993-05-12 Mutual Interference Suppression Circuit of Double Low Noise Block Converter

Publications (1)

Publication Number Publication Date
KR940027346A true KR940027346A (en) 1994-12-10

Family

ID=67137415

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930008158A KR940027346A (en) 1993-05-12 1993-05-12 Mutual Interference Suppression Circuit of Double Low Noise Block Converter

Country Status (1)

Country Link
KR (1) KR940027346A (en)

Similar Documents

Publication Publication Date Title
FI91337C (en) Switching arrangement to eliminate spurious reproduction in the radiotelephone receiver
KR920702081A (en) Automatic gain control circuit
KR940027346A (en) Mutual Interference Suppression Circuit of Double Low Noise Block Converter
KR970055837A (en) Wireless repeater
JPS58176459U (en) Local oscillator amplifier
KR920005458A (en) Amplification circuit
KR19990020269A (en) Device and method for spurious removal of wireless communication system
US20060211397A1 (en) Analogue mixer
KR890016753A (en) Low Noise Amplification and Frequency Inverter
KR930022747A (en) Low noise down frequency converter
KR100256958B1 (en) Mixer circuit using diplexer
KR0135038Y1 (en) Mid-frequency tank circuit for improving channel character
KR970031259A (en) Adjacent channel trap circuit for intermediate frequency signal
JPS6294002A (en) Microwave receiver
KR0178196B1 (en) Tuner with Dual Gate MOSFET
KR970031276A (en) Adjacent intermediate frequency channel signal trap circuit
KR20000006905A (en) An apparatus for converting a frequecy with a dynamic filtering character
KR950026105A (en) Matching device for microwave signals
KR950013013A (en) How to set oscillation frequency of frequency converter (LNB)
KR970024551A (en) Tuner
KR970031275A (en) Low Noise Amplifier Tuner
KR940001587A (en) Low noise frequency conversion circuit
JPH03204241A (en) Multiplex superheterodyne radio receiver
KR970078516A (en) Interference Modulation Improvement Circuit of High Frequency Modulation Module
JP2000049639A (en) Reception circuit

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination