KR890001271A - 탄성표면파 지연선을 이용한 fm복조기 구성방식 - Google Patents

탄성표면파 지연선을 이용한 fm복조기 구성방식 Download PDF

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Publication number
KR890001271A
KR890001271A KR1019870006415A KR870006415A KR890001271A KR 890001271 A KR890001271 A KR 890001271A KR 1019870006415 A KR1019870006415 A KR 1019870006415A KR 870006415 A KR870006415 A KR 870006415A KR 890001271 A KR890001271 A KR 890001271A
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KR
South Korea
Prior art keywords
idt
output
demodulator
interdigital
configuration method
Prior art date
Application number
KR1019870006415A
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English (en)
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KR890004157B1 (ko
Inventor
최영호
권희성
조성제
Original Assignee
안시환
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.)
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Application filed by 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019870006415A priority Critical patent/KR890004157B1/ko
Priority to JP63154544A priority patent/JPS6423605A/ja
Priority to DE3821247A priority patent/DE3821247A1/de
Priority to GB08815058A priority patent/GB2206760A/en
Publication of KR890001271A publication Critical patent/KR890001271A/ko
Application granted granted Critical
Publication of KR890004157B1 publication Critical patent/KR890004157B1/ko

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/66—Phase shifters
    • H03H9/68—Phase shifters using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
    • H03D3/16—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of electromechanical resonators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

내용없음

Description

탄성표면파 지연선을 이용한 FM복조기 구성방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 일실시예를 설명하기 위한 FM복조기의 구조도
제4도는 본 발명에 사용되는 인터 디지털 변환기의 특성을 설명하기 위한 도면
제5도 내지 제7도는 본 발명의 각각 다른 실시예를 설명하기 위한 FM복조기의 구조도이다

Claims (5)

  1. 중간주파 신호를 시간지연시키고, 곱셈기와 저역통과 필터를 통해 FM복조를 하는 FM복조기 구성방식에 있어서, 중간주파 신호를 탄성표면파로 변환시키는 입력인터디지탈 변환기(IDT31)와, 입력인터디지탈 변환기(IDT31)로부터 진행되어오는 탄성표면파를 전기적 신호로 변환시키는 출력인터디지탈 변환기(IDT32) 및 , 상기 출력인터디지탈 변환기(IDT32)보다 tO만틈의 시간지연을 갖도록 설치된 출력지연 인터디지탈 변환기(IDT33)가 압전물질(32)위에 증착 구성된 탄성표면과 지연선(31)을 상기 시간 지연수단으로 이용한 것을 특징으로 하는 FM복조기 구성방식.
  2. 제1항에 있어서, 출력인터디지탈 변환기(IDT32)(IDT33)가 일체로, 또는 입력인터디지탈 변환기(IDT31)의 양측에 tO만틈의 거리차를 두고 설치된 것을 특징으로 하는 FM복조기 구성방식.
  3. 제1항 또는 제2항에 있어서, 시간지연을 위한 거리차tO는 인터디지탈 변환기(IDT3--IDT33)의 전극폭(a)으로 하여 정확한 90도 위상차를 갖도록 한 것을 특징으로 하는 FM복조기 구성방식.
  4. 제1항에 있어서, 입력인터디지탈 변환기(IDT31)와 출력인터디지털 변환기(IDT32)(IDT33)사이에 다중스트립 결합기(MSC)를 설치하여 90도 위상차를 갖도록 한 것을 특징으로 하는 FM복조기 구성방식.
  5. 제1항에 있어서, 시간지연차를 갖는 출력인터디지탈 변환기(IDT32)(IDT33)를 입력으로 하고, 입력인터디지탈 변환기(IDT31)를 출력으로 사용하여 포락선검파기(71)을 통해 FM복조신호를 출력시키도록 한것을 특징으로 하는 FM복조기 구성방식.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870006415A 1987-06-24 1987-06-24 탄성표면파 지연선을 이용한 fm복조기 구성방식 KR890004157B1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019870006415A KR890004157B1 (ko) 1987-06-24 1987-06-24 탄성표면파 지연선을 이용한 fm복조기 구성방식
JP63154544A JPS6423605A (en) 1987-06-24 1988-06-22 Fm demodulator utilizing elastic surface wave delay line
DE3821247A DE3821247A1 (de) 1987-06-24 1988-06-23 Fm-demodulator
GB08815058A GB2206760A (en) 1987-06-24 1988-06-24 Frequency modulation demodulator utilizing a surface acoustic wave delay line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019870006415A KR890004157B1 (ko) 1987-06-24 1987-06-24 탄성표면파 지연선을 이용한 fm복조기 구성방식

Publications (2)

Publication Number Publication Date
KR890001271A true KR890001271A (ko) 1989-03-20
KR890004157B1 KR890004157B1 (ko) 1989-10-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870006415A KR890004157B1 (ko) 1987-06-24 1987-06-24 탄성표면파 지연선을 이용한 fm복조기 구성방식

Country Status (4)

Country Link
JP (1) JPS6423605A (ko)
KR (1) KR890004157B1 (ko)
DE (1) DE3821247A1 (ko)
GB (1) GB2206760A (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100343873B1 (ko) * 2000-03-22 2002-07-20 김희옥 기포성을 갖는 분말치약

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0717820U (ja) * 1991-08-06 1995-03-31 満 作井 消波ブロック
FR2746560B1 (fr) * 1996-03-19 1998-05-07 Sagem Procede de demodulation d'une porteuse modulee en frequence
JP5944813B2 (ja) * 2012-11-08 2016-07-05 太陽誘電株式会社 スイッチングデバイスおよびモジュール
JP7263088B2 (ja) 2019-04-08 2023-04-24 キヤノン株式会社 インプリント装置、インプリント方法および物品の製造方法

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GB1260525A (en) * 1969-03-31 1972-01-19 Zenith Radio Corp An acoustic electric filter system
US3626309A (en) * 1970-01-12 1971-12-07 Zenith Radio Corp Signal transmission system employing electroacoustic filter
US3750027A (en) * 1970-08-12 1973-07-31 Texas Instruments Inc Surface wave frequency discriminators
FR2167405B1 (ko) * 1972-01-14 1976-06-11 Thomson Csf
US3843932A (en) * 1973-11-14 1974-10-22 Gte Sylvania Inc Wide band frequency modulation detector
US3936751A (en) * 1974-09-05 1976-02-03 Texas Instruments Incorporated SWD FM detector and IF filter
JPS5279748A (en) * 1975-12-26 1977-07-05 Murata Manufacturing Co Surface acoustic wave device
JPS51114855A (en) * 1975-04-01 1976-10-08 Nippon Telegr & Teleph Corp <Ntt> Acoustic surface wave frequency discriminator
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FR2553610B1 (fr) * 1983-10-12 1986-02-07 Telediffusion Fse Circuit de reception d'onde modulee tantot en frequence par signal analogique et tantot en phase par signal numerique
JPS61144903A (ja) * 1984-12-19 1986-07-02 Hitachi Ltd ベ−スバンド復調器
GB2193609A (en) * 1986-08-08 1988-02-10 Stc Plc Phase-modulation detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100343873B1 (ko) * 2000-03-22 2002-07-20 김희옥 기포성을 갖는 분말치약

Also Published As

Publication number Publication date
JPS6423605A (en) 1989-01-26
DE3821247A1 (de) 1989-01-12
GB8815058D0 (en) 1988-08-03
KR890004157B1 (ko) 1989-10-21
GB2206760A (en) 1989-01-11

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