Attenuator

Hiraoka Tokumasa (Inventor), Bram Nauta (Inventor)

Research output: PatentProfessional

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Abstract

PROBLEM TO BE SOLVED: To provide an attenuator that has higher linearity and a satisfactory frequency characteristic.SOLUTION: A resistance that is subject to the same process fluctuation as a resistance included in an attenuation section 10a is disposed in a correction circuit 10c, a process fluctuation is detected on the basis of the resistance of the correction circuit 10c, and in accordance with the process fluctuation, a control signal to the attenuation section 10a from an attenuation control circuit 10b is adjusted such that a distortion component caused on a signal line and a distortion component caused on a short circuit line match in magnitude. Even when the resistance included in the attenuation section 10a shows a process fluctuation, the distortion component caused on the signal line and the distortion component caused on the short circuit line can match in magnitude to exert the effect of canceling both distortion components.
Original languageEnglish
Patent numberJP2014241555A
Priority date10/07/13
Publication statusPublished - 25 Dec 2014

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Short circuit currents
Networks (circuits)

Keywords

  • METIS-297730
  • EWI-23512
  • IR-101902

Cite this

Tokumasa, H., & Nauta, B. (2014). Attenuator. (Patent No. JP2014241555A).
Tokumasa, Hiraoka (Inventor) ; Nauta, Bram (Inventor). / Attenuator. Patent No.: JP2014241555A.
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Tokumasa, H & Nauta, B 2014, Attenuator, Patent No. JP2014241555A.

Attenuator. / Tokumasa, Hiraoka (Inventor); Nauta, Bram (Inventor).

Patent No.: JP2014241555A.

Research output: PatentProfessional

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AU - Nauta, Bram

PY - 2014/12/25

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N2 - PROBLEM TO BE SOLVED: To provide an attenuator that has higher linearity and a satisfactory frequency characteristic.SOLUTION: A resistance that is subject to the same process fluctuation as a resistance included in an attenuation section 10a is disposed in a correction circuit 10c, a process fluctuation is detected on the basis of the resistance of the correction circuit 10c, and in accordance with the process fluctuation, a control signal to the attenuation section 10a from an attenuation control circuit 10b is adjusted such that a distortion component caused on a signal line and a distortion component caused on a short circuit line match in magnitude. Even when the resistance included in the attenuation section 10a shows a process fluctuation, the distortion component caused on the signal line and the distortion component caused on the short circuit line can match in magnitude to exert the effect of canceling both distortion components.

AB - PROBLEM TO BE SOLVED: To provide an attenuator that has higher linearity and a satisfactory frequency characteristic.SOLUTION: A resistance that is subject to the same process fluctuation as a resistance included in an attenuation section 10a is disposed in a correction circuit 10c, a process fluctuation is detected on the basis of the resistance of the correction circuit 10c, and in accordance with the process fluctuation, a control signal to the attenuation section 10a from an attenuation control circuit 10b is adjusted such that a distortion component caused on a signal line and a distortion component caused on a short circuit line match in magnitude. Even when the resistance included in the attenuation section 10a shows a process fluctuation, the distortion component caused on the signal line and the distortion component caused on the short circuit line can match in magnitude to exert the effect of canceling both distortion components.

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KW - IR-101902

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Tokumasa H, Nauta B, inventors. Attenuator. JP2014241555A. 2014 Dec 25.