ZA864917B - A method of automatically matching the impedance of a transmitter to an antenna - Google Patents

A method of automatically matching the impedance of a transmitter to an antenna

Info

Publication number
ZA864917B
ZA864917B ZA864917A ZA864917A ZA864917B ZA 864917 B ZA864917 B ZA 864917B ZA 864917 A ZA864917 A ZA 864917A ZA 864917 A ZA864917 A ZA 864917A ZA 864917 B ZA864917 B ZA 864917B
Authority
ZA
South Africa
Prior art keywords
impedance
antenna
vswr
circle
inductive
Prior art date
Application number
ZA864917A
Other languages
English (en)
Inventor
Helmut Fuenfgelder
Erwin Baessler
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA864917B publication Critical patent/ZA864917B/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • H03H7/40—Automatic matching of load impedance to source impedance

Landscapes

  • Transmitters (AREA)
  • Transceivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
ZA864917A 1985-07-03 1986-07-02 A method of automatically matching the impedance of a transmitter to an antenna ZA864917B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3523823 1985-07-03

Publications (1)

Publication Number Publication Date
ZA864917B true ZA864917B (en) 1987-02-25

Family

ID=6274871

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA864917A ZA864917B (en) 1985-07-03 1986-07-02 A method of automatically matching the impedance of a transmitter to an antenna

Country Status (6)

Country Link
EP (1) EP0208984B1 (ja)
AT (1) ATE53151T1 (ja)
DE (1) DE3671586D1 (ja)
IN (1) IN164328B (ja)
NO (1) NO170377C (ja)
ZA (1) ZA864917B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9325355B2 (en) 2013-02-14 2016-04-26 Blackberry Limited Methods and apparatus for performing impedance matching

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2794987B2 (ja) * 1991-05-31 1998-09-10 日本電気株式会社 携帯無線装置
FI94807C (fi) * 1992-12-30 1995-10-25 Nokia Telecommunications Oy Menetelmä ja järjestely kompainerisuodattimen virittämiseksi
DE19644339C1 (de) * 1996-10-25 1998-06-10 Bosch Gmbh Robert Vorrichtung zur Transformation einer Antennenimpedanz
KR19980077560A (ko) * 1997-04-21 1998-11-16 장응순 하이임피던스형 고주파용 안테나
KR100285950B1 (ko) * 1997-12-26 2001-04-16 윤종용 인체의영향을최소화시키는휴대용전화기의안테나회로를구현하는방법
EP2568571B1 (en) * 2010-05-03 2019-07-17 Panasonic Intellectual Property Management Co., Ltd. Power generating apparatus, power generating system, and wireless power transmitting apparatus
KR101176286B1 (ko) * 2010-08-02 2012-08-22 엘지이노텍 주식회사 Ｓｗｒ 정보를 이용한 임피던스 매칭장치 및 방법
US9729190B2 (en) * 2014-01-17 2017-08-08 Qualcomm Incorporated Switchable antenna array

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778731A (en) * 1972-06-05 1973-12-11 Cincinnati Electronics Corp Tuning method for t-network couplers
FR2205252A5 (ja) * 1972-10-31 1974-05-24 Trt Telecom Radio Electr
GB1524965A (en) * 1974-10-15 1978-09-13 Cincinnati Electronics Corp Technique for automatic matching of high q-loads
US4201960A (en) * 1978-05-24 1980-05-06 Motorola, Inc. Method for automatically matching a radio frequency transmitter to an antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9325355B2 (en) 2013-02-14 2016-04-26 Blackberry Limited Methods and apparatus for performing impedance matching
US9673844B2 (en) 2013-02-14 2017-06-06 Blackberry Limited Methods and apparatus for performing impedance matching

Also Published As

Publication number Publication date
NO170377C (no) 1992-10-07
DE3671586D1 (de) 1990-06-28
EP0208984B1 (de) 1990-05-23
EP0208984A1 (de) 1987-01-21
NO862671L (no) 1987-01-05
ATE53151T1 (de) 1990-06-15
NO862671D0 (no) 1986-07-02
NO170377B (no) 1992-06-29
IN164328B (ja) 1989-02-18

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