JPS5754403A - Variable attenuator - Google Patents

Variable attenuator

Info

Publication number
JPS5754403A
JPS5754403A JP13026380A JP13026380A JPS5754403A JP S5754403 A JPS5754403 A JP S5754403A JP 13026380 A JP13026380 A JP 13026380A JP 13026380 A JP13026380 A JP 13026380A JP S5754403 A JPS5754403 A JP S5754403A
Authority
JP
Japan
Prior art keywords
magnetic field
attenuation
conductor
varied
strength
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
JP13026380A
Other languages
Japanese (ja)
Inventor
Toshiharu Sakai
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13026380A priority Critical patent/JPS5754403A/en
Publication of JPS5754403A publication Critical patent/JPS5754403A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/22—Attenuating devices
    • H01P1/23—Attenuating devices using ferromagnetic material

Abstract

PURPOSE:To control attenuation, by fitting an electromagnetic wave absorbing body at one side of a broad conductor provided on a ferrite base and changing the stregth of magnetic field applied to the ferrite. CONSTITUTION:Since the distribution of electric field of microwave power from an input terminal 1 to an output terminal 5 is biased with a magnetic field applied vertically to a base 6, when an electromagnetic wave absorbing body 8 is provided at one side of a conductor 7, a part of the microwave power is absorbed to the body 8 and the attenuation from the terminal 1 to 5 can be varied according to the strength of magnetic field. The strength of magnetic field is varied with a current flowing to an electromagnet located at the conductor 7. With such a simple construction, the attenuation can be varied.
JP13026380A 1980-09-18 1980-09-18 Variable attenuator Pending JPS5754403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13026380A JPS5754403A (en) 1980-09-18 1980-09-18 Variable attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13026380A JPS5754403A (en) 1980-09-18 1980-09-18 Variable attenuator

Publications (1)

Publication Number Publication Date
JPS5754403A true JPS5754403A (en) 1982-03-31

Family

ID=15030085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13026380A Pending JPS5754403A (en) 1980-09-18 1980-09-18 Variable attenuator

Country Status (1)

Country Link
JP (1) JPS5754403A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6413197U (en) * 1987-07-10 1989-01-24
JPH07231193A (en) * 1991-05-10 1995-08-29 Tokai Univ Radio wave absorption property changing method for ferrite radio wave absorber
US5495211A (en) * 1995-01-03 1996-02-27 E-Systems, Inc. Reconfiguration microstrip transmission line network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6413197U (en) * 1987-07-10 1989-01-24
JPH07231193A (en) * 1991-05-10 1995-08-29 Tokai Univ Radio wave absorption property changing method for ferrite radio wave absorber
US5495211A (en) * 1995-01-03 1996-02-27 E-Systems, Inc. Reconfiguration microstrip transmission line network

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