CN102751999B - 用于消除杂散发射的***和方法 - Google Patents
用于消除杂散发射的***和方法 Download PDFInfo
- Publication number
- CN102751999B CN102751999B CN201110286973.2A CN201110286973A CN102751999B CN 102751999 B CN102751999 B CN 102751999B CN 201110286973 A CN201110286973 A CN 201110286973A CN 102751999 B CN102751999 B CN 102751999B
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- China
- Prior art keywords
- filter
- digital
- distortion
- transmitter
- predistortion
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (24)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/882,498 | 2010-09-15 | ||
US12/882,498 US8204456B2 (en) | 2010-09-15 | 2010-09-15 | Systems and methods for spurious emission cancellation |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102751999A CN102751999A (zh) | 2012-10-24 |
CN102751999B true CN102751999B (zh) | 2015-04-29 |
Family
ID=44674466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201110286973.2A Active CN102751999B (zh) | 2010-09-15 | 2011-09-15 | 用于消除杂散发射的***和方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8204456B2 (zh) |
EP (1) | EP2432131B1 (zh) |
JP (1) | JP5864176B2 (zh) |
KR (1) | KR101196519B1 (zh) |
CN (1) | CN102751999B (zh) |
Families Citing this family (71)
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US9294041B2 (en) | 2011-10-26 | 2016-03-22 | Rf Micro Devices, Inc. | Average frequency control of switcher for envelope tracking |
US9515621B2 (en) | 2011-11-30 | 2016-12-06 | Qorvo Us, Inc. | Multimode RF amplifier system |
US9250643B2 (en) | 2011-11-30 | 2016-02-02 | Rf Micro Devices, Inc. | Using a switching signal delay to reduce noise from a switching power supply |
US8975959B2 (en) | 2011-11-30 | 2015-03-10 | Rf Micro Devices, Inc. | Monotonic conversion of RF power amplifier calibration data |
US8947161B2 (en) | 2011-12-01 | 2015-02-03 | Rf Micro Devices, Inc. | Linear amplifier power supply modulation for envelope tracking |
US9280163B2 (en) | 2011-12-01 | 2016-03-08 | Rf Micro Devices, Inc. | Average power tracking controller |
US9041365B2 (en) | 2011-12-01 | 2015-05-26 | Rf Micro Devices, Inc. | Multiple mode RF power converter |
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WO2013082384A1 (en) | 2011-12-01 | 2013-06-06 | Rf Micro Devices, Inc. | Rf power converter |
US9494962B2 (en) | 2011-12-02 | 2016-11-15 | Rf Micro Devices, Inc. | Phase reconfigurable switching power supply |
US9813036B2 (en) | 2011-12-16 | 2017-11-07 | Qorvo Us, Inc. | Dynamic loadline power amplifier with baseband linearization |
US9298198B2 (en) | 2011-12-28 | 2016-03-29 | Rf Micro Devices, Inc. | Noise reduction for envelope tracking |
US8981839B2 (en) | 2012-06-11 | 2015-03-17 | Rf Micro Devices, Inc. | Power source multiplexer |
US9020451B2 (en) | 2012-07-26 | 2015-04-28 | Rf Micro Devices, Inc. | Programmable RF notch filter for envelope tracking |
US9225231B2 (en) | 2012-09-14 | 2015-12-29 | Rf Micro Devices, Inc. | Open loop ripple cancellation circuit in a DC-DC converter |
US9197256B2 (en) | 2012-10-08 | 2015-11-24 | Rf Micro Devices, Inc. | Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal |
US9207692B2 (en) | 2012-10-18 | 2015-12-08 | Rf Micro Devices, Inc. | Transitioning from envelope tracking to average power tracking |
US9627975B2 (en) | 2012-11-16 | 2017-04-18 | Qorvo Us, Inc. | Modulated power supply system and method with automatic transition between buck and boost modes |
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CN105548932B (zh) * | 2015-12-07 | 2018-06-19 | 上海创远仪器技术股份有限公司 | 实现微波测试仪器近杂散自动校准的***及方法 |
CN108476035B (zh) | 2016-01-26 | 2020-09-25 | 株式会社村田制作所 | 高频前端电路、通信装置 |
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CN109521271B (zh) * | 2018-12-27 | 2021-06-22 | 京信通信***(中国)有限公司 | 一种信号采样方法及装置 |
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-
2010
- 2010-09-15 US US12/882,498 patent/US8204456B2/en active Active
-
2011
- 2011-09-08 KR KR1020110091361A patent/KR101196519B1/ko active IP Right Grant
- 2011-09-08 EP EP11180626.1A patent/EP2432131B1/en active Active
- 2011-09-14 JP JP2011200650A patent/JP5864176B2/ja active Active
- 2011-09-15 CN CN201110286973.2A patent/CN102751999B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20120064847A1 (en) | 2012-03-15 |
JP2012065318A (ja) | 2012-03-29 |
KR101196519B1 (ko) | 2012-11-01 |
EP2432131A3 (en) | 2015-01-14 |
EP2432131A2 (en) | 2012-03-21 |
CN102751999A (zh) | 2012-10-24 |
US8204456B2 (en) | 2012-06-19 |
KR20120029327A (ko) | 2012-03-26 |
EP2432131B1 (en) | 2017-03-15 |
JP5864176B2 (ja) | 2016-02-17 |
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