JPS57101404A - Compensation circuit for nonlinear distortion - Google Patents
Compensation circuit for nonlinear distortionInfo
- Publication number
- JPS57101404A JPS57101404A JP17759180A JP17759180A JPS57101404A JP S57101404 A JPS57101404 A JP S57101404A JP 17759180 A JP17759180 A JP 17759180A JP 17759180 A JP17759180 A JP 17759180A JP S57101404 A JPS57101404 A JP S57101404A
- Authority
- JP
- Japan
- Prior art keywords
- output
- input
- nonlinear distortion
- terminal
- transmission line
- 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
Links
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To adjust the amount of compensation easily, by using a field effect transistor as a voltage variable resistive element for a nonlinear distortion caused for input and output characteristics of a transmission line due to saturation of an amplifier.
CONSTITUTION: When a signal S is applied to an input terminal 1, it is given to the gate of an FET 8 and an expanded output is produced at an output terminal 4. This output is converted into a symmetrical output Q at a filter 19 of high frequency rejection. When the entire input and output characteristics are desired to be changed, it is done by changing the bias through an adjustment resistor 18. The entire input and output characteristics can be linear by the adjustment in response to the nonlinearity of saturation characteristics of a transmission line. Since a choke coil 12 shows a high impedance to high frequency signals, a gate terminal 5 can not be fixed to -Vc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17759180A JPS57101404A (en) | 1980-12-16 | 1980-12-16 | Compensation circuit for nonlinear distortion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17759180A JPS57101404A (en) | 1980-12-16 | 1980-12-16 | Compensation circuit for nonlinear distortion |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57101404A true JPS57101404A (en) | 1982-06-24 |
Family
ID=16033662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17759180A Pending JPS57101404A (en) | 1980-12-16 | 1980-12-16 | Compensation circuit for nonlinear distortion |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57101404A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114710U (en) * | 1981-01-07 | 1982-07-16 | ||
US4763081A (en) * | 1987-07-13 | 1988-08-09 | Motorola, Inc. | Reducing distortion in active MOSFET-C low pass filters |
US6111461A (en) * | 1997-10-15 | 2000-08-29 | Nec Corporation | High frequency amplifier circuit |
US6377118B1 (en) | 1999-02-01 | 2002-04-23 | Fujitsu Limited | Linearizer for power amplifier |
-
1980
- 1980-12-16 JP JP17759180A patent/JPS57101404A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114710U (en) * | 1981-01-07 | 1982-07-16 | ||
US4763081A (en) * | 1987-07-13 | 1988-08-09 | Motorola, Inc. | Reducing distortion in active MOSFET-C low pass filters |
US6111461A (en) * | 1997-10-15 | 2000-08-29 | Nec Corporation | High frequency amplifier circuit |
US6377118B1 (en) | 1999-02-01 | 2002-04-23 | Fujitsu Limited | Linearizer for power amplifier |
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