DE59803758D1 - MEASURING METHOD AND MEASURING DEVICE FOR MEASURING THE DISTORTION OF A HIGH FREQUENCY POWER AMPLIFIER AND EQUALIZATION METHOD AND EQUALIZING DEVICE - Google Patents
MEASURING METHOD AND MEASURING DEVICE FOR MEASURING THE DISTORTION OF A HIGH FREQUENCY POWER AMPLIFIER AND EQUALIZATION METHOD AND EQUALIZING DEVICEInfo
- Publication number
- DE59803758D1 DE59803758D1 DE59803758T DE59803758T DE59803758D1 DE 59803758 D1 DE59803758 D1 DE 59803758D1 DE 59803758 T DE59803758 T DE 59803758T DE 59803758 T DE59803758 T DE 59803758T DE 59803758 D1 DE59803758 D1 DE 59803758D1
- Authority
- DE
- Germany
- Prior art keywords
- measuring
- distortion
- high frequency
- power amplifier
- frequency power
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3282—Acting on the phase and the amplitude of the input signal
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732465 | 1997-07-28 | ||
DE19813703A DE19813703A1 (en) | 1997-07-28 | 1998-03-27 | A measuring method and apparatus for measuring the distortion of a high frequency power amplifier and equalization method and equalizer for automatically equalizing a high frequency power amplifier |
PCT/EP1998/004717 WO1999005784A1 (en) | 1997-07-28 | 1998-07-28 | Measuring method and device for measuring the distortion of a high frequency power amplifier and correction method and device for the automatic correction of a high frequency power amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59803758D1 true DE59803758D1 (en) | 2002-05-16 |
Family
ID=7837151
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813703A Withdrawn DE19813703A1 (en) | 1997-07-28 | 1998-03-27 | A measuring method and apparatus for measuring the distortion of a high frequency power amplifier and equalization method and equalizer for automatically equalizing a high frequency power amplifier |
DE59803758T Expired - Lifetime DE59803758D1 (en) | 1997-07-28 | 1998-07-28 | MEASURING METHOD AND MEASURING DEVICE FOR MEASURING THE DISTORTION OF A HIGH FREQUENCY POWER AMPLIFIER AND EQUALIZATION METHOD AND EQUALIZING DEVICE |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19813703A Withdrawn DE19813703A1 (en) | 1997-07-28 | 1998-03-27 | A measuring method and apparatus for measuring the distortion of a high frequency power amplifier and equalization method and equalizer for automatically equalizing a high frequency power amplifier |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE19813703A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10022853A1 (en) * | 2000-03-16 | 2001-09-20 | Rohde & Schwarz | Parameter determining method for high frequency power amplifier involves plotting amplitudes of series of modulated signals, and obtaining time breaks through cross correlation of signals |
WO2001069778A2 (en) * | 2000-03-16 | 2001-09-20 | Rohde & Schwarz Gmbh & Co. Kg | Method for determining the parameters of an n-gate |
JP2001313532A (en) * | 2000-05-01 | 2001-11-09 | Sony Corp | Distortion compensation device |
WO2002003602A1 (en) * | 2000-06-30 | 2002-01-10 | Harris Corporation | Digital broadcast transmission with system monitor and display |
US6931080B2 (en) * | 2001-08-13 | 2005-08-16 | Lucent Technologies Inc. | Multiple stage and/or nested predistortion system and method |
DE102005037880A1 (en) | 2005-05-19 | 2006-11-23 | Rohde & Schwarz Gmbh & Co. Kg | Determination of the amplitude and phase of the output signal in a mobile phone to improve signal to noise |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4237555A (en) * | 1979-09-14 | 1980-12-02 | International Telephone And Telegraph Corporation | Automatic modulation system |
GB2073895B (en) * | 1980-04-11 | 1983-11-02 | Tektronix Inc | Automatic intermodulation distortion analyzer |
AU3339397A (en) * | 1996-06-19 | 1998-01-07 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Pre-distortion for a non-linear transmission path in the high frequency range |
-
1998
- 1998-03-27 DE DE19813703A patent/DE19813703A1/en not_active Withdrawn
- 1998-07-28 DE DE59803758T patent/DE59803758D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19813703A1 (en) | 1999-02-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |