EP1804329A4 - Variable attenuator - Google Patents

Variable attenuator

Info

Publication number
EP1804329A4
EP1804329A4 EP05755038A EP05755038A EP1804329A4 EP 1804329 A4 EP1804329 A4 EP 1804329A4 EP 05755038 A EP05755038 A EP 05755038A EP 05755038 A EP05755038 A EP 05755038A EP 1804329 A4 EP1804329 A4 EP 1804329A4
Authority
EP
European Patent Office
Prior art keywords
variable attenuator
attenuator
variable
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.)
Withdrawn
Application number
EP05755038A
Other languages
German (de)
French (fr)
Other versions
EP1804329A1 (en
Inventor
Yuejun Yan
Yuepeng Yan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1804329A1 publication Critical patent/EP1804329A1/en
Publication of EP1804329A4 publication Critical patent/EP1804329A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/22—Attenuating devices
    • H01P1/227—Strip line attenuators
EP05755038A 2004-10-13 2005-06-17 Variable attenuator Withdrawn EP1804329A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200410051879 CN1282303C (en) 2004-10-13 2004-10-13 Variable attenuator
PCT/CN2005/000872 WO2006039850A1 (en) 2004-10-13 2005-06-17 Variable attenuator

Publications (2)

Publication Number Publication Date
EP1804329A1 EP1804329A1 (en) 2007-07-04
EP1804329A4 true EP1804329A4 (en) 2007-10-10

Family

ID=35046702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05755038A Withdrawn EP1804329A4 (en) 2004-10-13 2005-06-17 Variable attenuator

Country Status (4)

Country Link
EP (1) EP1804329A4 (en)
JP (1) JP2008516568A (en)
CN (1) CN1282303C (en)
WO (1) WO2006039850A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101558559B (en) * 2007-08-11 2013-01-30 阎跃军 Variable attenuator
CN101546989B (en) * 2008-03-26 2014-09-17 深圳市研通高频技术有限公司 Variable attenuator
DE102009017689A1 (en) * 2009-04-16 2010-10-21 Asc-Tec Ag Antennen-Satelliten-Communication-Technik level control
US20110193624A1 (en) * 2010-02-08 2011-08-11 Harris Corporation Tunable impedance inverter for doherty amplifier circuit
JP5110333B2 (en) * 2010-06-21 2012-12-26 Ｔｄｋ株式会社 Attenuator
CN109703998B (en) * 2018-12-25 2020-07-31 湖州通元石料有限公司 Unloader is carried to portable building stones

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961620A (en) * 1955-10-06 1960-11-22 Sanders Associates Inc Phase shifter for high frequency transmission line
JPH10242711A (en) * 1997-02-25 1998-09-11 Miharu Tsushin Kk Cylindrical variable attenuator
EP1054466A2 (en) * 1999-05-19 2000-11-22 KMW Co., Ltd. Signal-processing apparatus for shifting phase of a signal inputted thereto and attenuating the signal
WO2004082063A1 (en) * 2003-03-12 2004-09-23 Qinetiq Limited Phase shifter device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810891A (en) * 1954-03-03 1957-10-22 Itt Attenuators
US3659233A (en) * 1970-07-07 1972-04-25 Collins Radio Co Microstrip rf variable attenuator
JPH0624162B2 (en) * 1989-05-11 1994-03-30 コパル電子株式会社 Variable resistor resistor
JP3951488B2 (en) * 1998-12-25 2007-08-01 住友電気工業株式会社 Distributed variable phase shifter
US6522221B1 (en) * 1999-01-04 2003-02-18 Nippon Telegraph And Telephone Corporation Phase shifter, attenuator, and nonlinear signal generator
US6504450B2 (en) * 2000-08-12 2003-01-07 Kmw Inc. Signal process apparatus for phase-shifting N number of signals inputted thereto

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961620A (en) * 1955-10-06 1960-11-22 Sanders Associates Inc Phase shifter for high frequency transmission line
JPH10242711A (en) * 1997-02-25 1998-09-11 Miharu Tsushin Kk Cylindrical variable attenuator
EP1054466A2 (en) * 1999-05-19 2000-11-22 KMW Co., Ltd. Signal-processing apparatus for shifting phase of a signal inputted thereto and attenuating the signal
WO2004082063A1 (en) * 2003-03-12 2004-09-23 Qinetiq Limited Phase shifter device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006039850A1 *

Also Published As

Publication number Publication date
WO2006039850A1 (en) 2006-04-20
EP1804329A1 (en) 2007-07-04
CN1674351A (en) 2005-09-28
CN1282303C (en) 2006-10-25
JP2008516568A (en) 2008-05-15

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