KR920003623A - 이중대역 주파수변환장치 - Google Patents

이중대역 주파수변환장치 Download PDF

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Publication number
KR920003623A
KR920003623A KR1019900011558A KR900011558A KR920003623A KR 920003623 A KR920003623 A KR 920003623A KR 1019900011558 A KR1019900011558 A KR 1019900011558A KR 900011558 A KR900011558 A KR 900011558A KR 920003623 A KR920003623 A KR 920003623A
Authority
KR
South Korea
Prior art keywords
frequency
converting means
frequency converting
output
amplifier
Prior art date
Application number
KR1019900011558A
Other languages
English (en)
Other versions
KR940002968B1 (ko
Inventor
윤기호
Original Assignee
정용문
삼성전자 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 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019900011558A priority Critical patent/KR940002968B1/ko
Priority to JP3066853A priority patent/JPH073932B2/ja
Priority to US07/736,923 priority patent/US5184084A/en
Publication of KR920003623A publication Critical patent/KR920003623A/ko
Application granted granted Critical
Publication of KR940002968B1 publication Critical patent/KR940002968B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1408—Balanced arrangements with diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Superheterodyne Receivers (AREA)
  • Radio Relay Systems (AREA)

Abstract

내용 없음.

Description

이중대역 주파수변환장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 종래의 이중대역 주파수변환기의 회로도.
제2도는 본 발명에 따른 실시예의 회로도.
* 도면의 주요부분에 대한 부호의 설명
10 : 도파관 20 : 저잡음증폭기
21 : 중간주파증폭기 22 : 협대역증폭기
30,31 : 제1,2주파수변환수단 40 : 출력단
50 : 전원변환수단 60 : 신호 및 전원중계수단
70 : 주파수변환선택수단 80 : 여파기
90,91 : 제1,2국부발진기 100,101 : 제1,2혼합기
110∼112 : 제1~3전압변환기 120 : 제파기
130 : 스위치제어기 C1 : 콘덴서
SW1,SW2 : 제1,2스위치

Claims (1)

  1. 도파관(10)을 구비한 마이크로파수신장치에 있어서, 상기 도파관(10)을 통해 유입되는 상위 마이크로파 대역의 고주파신호를 저잡음증폭하는 저잡음증폭기(20)와. 상기 저잡음증폭기(20)의 출력을 주파수변환하는 제1주파수변환수단(30)과, 상기 제1주파수변환수단(30)의 출력을 재차 주파수 변환하는 제2주파수변환수단(31)과, 상기 제1주파수변환수단(30)이나 상기 제2주파수변환수단(31)의 출력을 선택적으로 증폭하는 중간주파 증폭기(21)와, 사용자의 선택에 따라 상기 제1주파수변환수단(30)의 출력과 제2주파수변환수단(31)의 출력중 하나를 선택하여 상기 중간주파증폭기(21)로 전달하는 중간주파수선택수단(70)을 포함하여, 제2주파수변환수단(31)을 상기 제1주파수 변환수단(30)보다 낮은 주파수대역에서 작동되도록 함으로써 설계상의 어려움을 경감시킴을 특징으로 하는 이중대역주파수변환장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900011558A 1990-07-28 1990-07-28 이중대역 주파수변환장치 KR940002968B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019900011558A KR940002968B1 (ko) 1990-07-28 1990-07-28 이중대역 주파수변환장치
JP3066853A JPH073932B2 (ja) 1990-07-28 1991-03-29 二重帯域周波数変換装置
US07/736,923 US5184084A (en) 1990-07-28 1991-07-29 Double band frequency converting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019900011558A KR940002968B1 (ko) 1990-07-28 1990-07-28 이중대역 주파수변환장치

Publications (2)

Publication Number Publication Date
KR920003623A true KR920003623A (ko) 1992-02-29
KR940002968B1 KR940002968B1 (ko) 1994-04-09

Family

ID=19301765

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900011558A KR940002968B1 (ko) 1990-07-28 1990-07-28 이중대역 주파수변환장치

Country Status (3)

Country Link
US (1) US5184084A (ko)
JP (1) JPH073932B2 (ko)
KR (1) KR940002968B1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3565281B2 (ja) * 1993-10-08 2004-09-15 ソニー株式会社 受信機
US6147543A (en) * 1996-01-19 2000-11-14 Motorola, Inc. Method and apparatus for selecting from multiple mixers
AU2003297935A1 (en) * 2002-12-11 2004-06-30 R.F. Magic, Inc. Integrated crosspoint switch with band translation
JP3738766B2 (ja) * 2003-02-25 2006-01-25 ソニー株式会社 通信装置
JP3804618B2 (ja) * 2003-02-25 2006-08-02 ソニー株式会社 通信装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961264A (en) * 1974-05-02 1976-06-01 Hekimian Laboratories, Inc. Linear frequency converter with gain independent of circuit parameters
JPS5823978B2 (ja) * 1975-11-11 1983-05-18 ソニー株式会社 チユ−ナ
US4385402A (en) * 1980-04-16 1983-05-24 Redifon Telecommunications Limited Switchable filter circuits
JPS5861547U (ja) * 1981-10-19 1983-04-25 デイエツクスアンテナ株式会社 衛星放送受信機

Also Published As

Publication number Publication date
JPH073932B2 (ja) 1995-01-18
KR940002968B1 (ko) 1994-04-09
JPH04234208A (ja) 1992-08-21
US5184084A (en) 1993-02-02

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