SE0402289D0 - predistorter - Google Patents
predistorterInfo
- Publication number
- SE0402289D0 SE0402289D0 SE0402289A SE0402289A SE0402289D0 SE 0402289 D0 SE0402289 D0 SE 0402289D0 SE 0402289 A SE0402289 A SE 0402289A SE 0402289 A SE0402289 A SE 0402289A SE 0402289 D0 SE0402289 D0 SE 0402289D0
- Authority
- SE
- Sweden
- Prior art keywords
- nonlinear
- adjusting
- impedance
- circuit
- predistorter
- Prior art date
Links
Abstract
The present invention relates to an analog predistorter (100) having a tunable amplitude (60) and/ or phase (80) expansion. The predistorter (100) includes a coupler (110) having an input port (112), an output port (114), a first (116) and a second (118) coupled port separated by 90 degrees. A first compensation circuit (120A) is connected to the first coupled port (116) and comprises a first combination (130A) of linear (132A) and nonlinear (131A) circuit elements and a first impedance adjusting unit (140A) for adjusting the impedance seen by the nonlinear circuit element (131A). A second compensation circuit (120B) is connected to the second coupled port (118) and comprises a second combination (130B) of linear (132B) and nonlinear (131B) circuit elements a second impedance adjusting unit (140B) for adjusting the impedance seen by said nonlinear circuit element (131B). By adjusting the impedances seen by the nonlinear circuit elements (13 IA, 131B) the amplitude (60) and/or phase (80) expansion of the predisorter (100) are tuned.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0402289A SE0402289D0 (en) | 2004-09-21 | 2004-09-21 | predistorter |
SE0402524A SE0402524D0 (en) | 2004-09-21 | 2004-10-15 | Tunable predistors |
CN200580031365XA CN101036289B (en) | 2004-09-21 | 2005-09-20 | Analog predistorter and its regulation method and method for compensating signal change |
DE602005027715T DE602005027715D1 (en) | 2004-09-21 | 2005-09-20 | ADJUSTABLE FORECASTER |
US11/663,341 US7420416B2 (en) | 2004-09-21 | 2005-09-20 | Tunable predistorter |
AT05784881T ATE507612T1 (en) | 2004-09-21 | 2005-09-20 | ADJUSTABLE PREDISTORER |
PCT/SE2005/001381 WO2006033622A1 (en) | 2004-09-21 | 2005-09-20 | Tunable predistorter |
EP05784881A EP1794879B1 (en) | 2004-09-21 | 2005-09-20 | Tunable predistorter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0402289A SE0402289D0 (en) | 2004-09-21 | 2004-09-21 | predistorter |
Publications (1)
Publication Number | Publication Date |
---|---|
SE0402289D0 true SE0402289D0 (en) | 2004-09-21 |
Family
ID=33308799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0402289A SE0402289D0 (en) | 2004-09-21 | 2004-09-21 | predistorter |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN101036289B (en) |
SE (1) | SE0402289D0 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104167994B (en) * | 2014-08-26 | 2017-02-15 | 电子科技大学 | Amplitude and phase tunable type pre-distortion linearizer |
CN106982181A (en) * | 2016-01-18 | 2017-07-25 | 中兴通讯股份有限公司 | Coupling network, power amplification device and communication terminal |
CN113242023B (en) * | 2021-03-30 | 2022-07-26 | 宁波大学 | Analog predistorter of field effect transistor series connection reflection type Schottky diode |
CN113659938B (en) * | 2021-08-24 | 2023-05-12 | 电子科技大学 | Analog predistorter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146177A (en) * | 1991-08-30 | 1992-09-08 | General Electric Co. | Balanced reflective nonlinear processor using FETs |
CN1204898A (en) * | 1997-06-30 | 1999-01-13 | 哈里公司 | Apparatus with reduced A/D dynamic range requirement in compensating feedback system |
US6326843B1 (en) * | 2000-02-25 | 2001-12-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Analog reflective predistorter for power amplifiers |
-
2004
- 2004-09-21 SE SE0402289A patent/SE0402289D0/en unknown
-
2005
- 2005-09-20 CN CN200580031365XA patent/CN101036289B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN101036289A (en) | 2007-09-12 |
CN101036289B (en) | 2010-05-26 |
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