JPS5442959A - Variable resistance attenuator - Google Patents

Variable resistance attenuator

Info

Publication number
JPS5442959A
JPS5442959A JP9970577A JP9970577A JPS5442959A JP S5442959 A JPS5442959 A JP S5442959A JP 9970577 A JP9970577 A JP 9970577A JP 9970577 A JP9970577 A JP 9970577A JP S5442959 A JPS5442959 A JP S5442959A
Authority
JP
Japan
Prior art keywords
variable resistance
resistance attenuator
attenuator
continuous
controlled
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP9970577A
Other languages
Japanese (ja)
Inventor
Takuya Iwagami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9970577A priority Critical patent/JPS5442959A/en
Publication of JPS5442959A publication Critical patent/JPS5442959A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H03H7/25—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable
    • H03H7/253—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode
    • H03H7/255—Frequency- independent attenuators comprising an element controlled by an electric or magnetic variable the element being a diode the element being a PIN diode

Landscapes

  • Attenuators (AREA)

Abstract

PURPOSE:T obtain an attenuator which can secure matching of the input and output impedance as well as can be controlled in a continuous and electric way through a simple constitution.
JP9970577A 1977-08-19 1977-08-19 Variable resistance attenuator Pending JPS5442959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9970577A JPS5442959A (en) 1977-08-19 1977-08-19 Variable resistance attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9970577A JPS5442959A (en) 1977-08-19 1977-08-19 Variable resistance attenuator

Publications (1)

Publication Number Publication Date
JPS5442959A true JPS5442959A (en) 1979-04-05

Family

ID=14254467

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9970577A Pending JPS5442959A (en) 1977-08-19 1977-08-19 Variable resistance attenuator

Country Status (1)

Country Link
JP (1) JPS5442959A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216311A (en) * 1983-05-24 1984-12-06 Matsushita Electric Ind Co Ltd Variable resistance attenuator
JPS6230632A (en) * 1985-08-01 1987-02-09 Shinetsu Sekiei Kk Production of high-purity quartz glass
US4646036A (en) * 1985-12-23 1987-02-24 Motorola, Inc. Signal attenuation circuit
US5656978A (en) * 1995-12-11 1997-08-12 Harmonic Lightwaves Control circuit and method for direct current controlled attenuator
JP2006527545A (en) * 2003-06-06 2006-11-30 サイエンティフィック−アトランタ， インコーポレイテッド Optical receiver with open loop automatic gain control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216311A (en) * 1983-05-24 1984-12-06 Matsushita Electric Ind Co Ltd Variable resistance attenuator
JPS6230632A (en) * 1985-08-01 1987-02-09 Shinetsu Sekiei Kk Production of high-purity quartz glass
US4646036A (en) * 1985-12-23 1987-02-24 Motorola, Inc. Signal attenuation circuit
US5656978A (en) * 1995-12-11 1997-08-12 Harmonic Lightwaves Control circuit and method for direct current controlled attenuator
JP2006527545A (en) * 2003-06-06 2006-11-30 サイエンティフィック−アトランタ， インコーポレイテッド Optical receiver with open loop automatic gain control circuit

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