TWI373209B - Lo leakage and sideband image calibration system and method - Google Patents
Lo leakage and sideband image calibration system and methodInfo
- Publication number
- TWI373209B TWI373209B TW094119286A TW94119286A TWI373209B TW I373209 B TWI373209 B TW I373209B TW 094119286 A TW094119286 A TW 094119286A TW 94119286 A TW94119286 A TW 94119286A TW I373209 B TWI373209 B TW I373209B
- Authority
- TW
- Taiwan
- Prior art keywords
- leakage
- calibration system
- image calibration
- sideband image
- sideband
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/888,842 US7280805B2 (en) | 2004-07-09 | 2004-07-09 | LO leakage and sideband image calibration system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200614691A TW200614691A (en) | 2006-05-01 |
TWI373209B true TWI373209B (en) | 2012-09-21 |
Family
ID=35542011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094119286A TWI373209B (en) | 2004-07-09 | 2005-06-10 | Lo leakage and sideband image calibration system and method |
Country Status (5)
Country | Link |
---|---|
US (1) | US7280805B2 (zh) |
JP (1) | JP4845437B2 (zh) |
KR (1) | KR101120410B1 (zh) |
CN (1) | CN1722721B (zh) |
TW (1) | TWI373209B (zh) |
Families Citing this family (53)
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US7769355B2 (en) * | 2005-01-19 | 2010-08-03 | Micro Mobio Corporation | System-in-package wireless communication device comprising prepackaged power amplifier |
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US7440732B2 (en) * | 2005-08-26 | 2008-10-21 | Broadcom Corporation | Apparatus and method of local oscillator leakage cancellation |
US20070135064A1 (en) * | 2005-12-09 | 2007-06-14 | Ruelke Charles R | Method and apparatus for reducing phase imbalance in radio frequency signals |
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JP5044674B2 (ja) * | 2010-03-26 | 2012-10-10 | 株式会社東芝 | 周波数変換器及びこれを用いた送信機 |
US8681838B2 (en) * | 2011-03-21 | 2014-03-25 | Blackberry Limited | Electronic device with VCO pulling compensation circuit for an input baseband signal and associated methods |
CN102270965B (zh) * | 2011-04-02 | 2013-08-28 | 华为技术有限公司 | 混频电路和混频电路中抑制本振泄露的方法 |
US8964892B2 (en) | 2011-08-23 | 2015-02-24 | Motorola Solutions, Inc. | Apparatus and method for operating a transmitter |
US8913694B2 (en) | 2012-12-05 | 2014-12-16 | Mstar Semiconductor, Inc. | Fast LO leakage calibration of direct up-conversion transmitters using three measurements |
GB2508911A (en) * | 2012-12-14 | 2014-06-18 | Renesas Mobile Corp | Calibration of a frequency converter, based on non-dc measurements, to reduce an output dc component arising from local oscillator leakage and self-mixing |
US9154243B2 (en) * | 2012-12-17 | 2015-10-06 | Qualcomm Incorporated | Receiver calibration with LO signal from inactive receiver |
US9291658B2 (en) * | 2013-02-22 | 2016-03-22 | Tektronix, Inc. | Minimum-time signal leakage detector |
US9787415B2 (en) | 2013-03-14 | 2017-10-10 | Analog Devices, Inc. | Transmitter LO leakage calibration scheme using loopback circuitry |
US20150118980A1 (en) * | 2013-10-29 | 2015-04-30 | Qualcomm Incorporated | Transmitter (tx) residual sideband (rsb) and local oscillator (lo) leakage calibration using a reconfigurable tone generator (tg) and lo paths |
CN103763600B (zh) * | 2013-12-25 | 2017-06-20 | 络达科技股份有限公司 | 数字电视信号接收方法及其系统 |
TWI542220B (zh) | 2013-12-25 | 2016-07-11 | Digital TV signal receiving method and system thereof | |
US9537520B2 (en) | 2014-05-14 | 2017-01-03 | Samsung Electronics Co., Ltd | Method and apparatus for calibrating distortion of signals |
US9450537B2 (en) * | 2014-08-25 | 2016-09-20 | Tensorcom, Inc. | Method and apparatus to detect LO leakage and image rejection using a single transistor |
TWI601397B (zh) * | 2015-12-31 | 2017-10-01 | 瑞昱半導體股份有限公司 | 具牽引效應補償機制的發射器 |
US9736790B1 (en) * | 2016-04-04 | 2017-08-15 | Spreadtrum Communications Usa, Inc. | Transceiver system supporting transmitter self calibration and methods of performing the same |
US11012104B2 (en) | 2017-03-03 | 2021-05-18 | Analog Devices, Inc. | Apparatus and methods for calibrating radio frequency transmitters to compensate for common mode local oscillator leakage |
JP2018164183A (ja) * | 2017-03-24 | 2018-10-18 | 富士通株式会社 | 通信装置および歪補償方法 |
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JP6977658B2 (ja) * | 2018-05-09 | 2021-12-08 | 日本電信電話株式会社 | 信号生成器および信号生成方法 |
KR20200079717A (ko) * | 2018-12-26 | 2020-07-06 | 삼성전자주식회사 | 무선 통신 시스템에서 신호 레벨을 조정하는 장치 및 방법 |
JP7249210B2 (ja) * | 2019-06-07 | 2023-03-30 | 日本無線株式会社 | ダイレクトコンバージョン送信器 |
CN110865235A (zh) * | 2019-11-29 | 2020-03-06 | 山东浪潮人工智能研究院有限公司 | 一种混频器自动校准系统及方法 |
US11533067B1 (en) * | 2021-08-06 | 2022-12-20 | Jariet Technologies, Inc. | Self-contained in-phase and quadrature (IQ) image rejection calibration on heterodyne transceivers in millimeter-wave phase array system |
US11683026B1 (en) | 2022-08-30 | 2023-06-20 | International Business Machines Corporation | Calibrating signal currents in a radio frequency signal generator |
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JPH0832462A (ja) * | 1994-07-15 | 1996-02-02 | Uniden Corp | カーテジアンループのdcオフセット回路 |
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JPH11234047A (ja) * | 1998-02-13 | 1999-08-27 | Kokusai Electric Co Ltd | 周波数変換方法とその装置 |
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US7369813B2 (en) * | 2003-05-14 | 2008-05-06 | Telefonaktiebolaget L M Ericsson (Publ) | Fast calibration of electronic components |
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US20050148304A1 (en) * | 2003-12-24 | 2005-07-07 | Fodus Communications, Inc. | Calibration method for the correction of in-phase quadrature signal mismatch in a radio frequency transceiver |
US7280805B2 (en) | 2004-07-09 | 2007-10-09 | Silicon Storage Technology, Inc. | LO leakage and sideband image calibration system and method |
-
2004
- 2004-07-09 US US10/888,842 patent/US7280805B2/en active Active
-
2005
- 2005-06-10 TW TW094119286A patent/TWI373209B/zh active
- 2005-07-06 JP JP2005197259A patent/JP4845437B2/ja active Active
- 2005-07-08 KR KR1020050061900A patent/KR101120410B1/ko active IP Right Grant
- 2005-07-11 CN CN2005100846980A patent/CN1722721B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
KR20060050014A (ko) | 2006-05-19 |
JP2006025426A (ja) | 2006-01-26 |
JP4845437B2 (ja) | 2011-12-28 |
CN1722721A (zh) | 2006-01-18 |
KR101120410B1 (ko) | 2012-03-15 |
US7280805B2 (en) | 2007-10-09 |
CN1722721B (zh) | 2010-12-01 |
TW200614691A (en) | 2006-05-01 |
US20060009171A1 (en) | 2006-01-12 |
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