EE9900365A - Apparatus and method of telecommunications - Google Patents

Apparatus and method of telecommunications

Info

Publication number
EE9900365A
EE9900365A EEP199900365A EEP9900365A EE9900365A EE 9900365 A EE9900365 A EE 9900365A EE P199900365 A EEP199900365 A EE P199900365A EE P9900365 A EEP9900365 A EE P9900365A EE 9900365 A EE9900365 A EE 9900365A
Authority
EE
Estonia
Prior art keywords
telecommunications
Prior art date
Application number
EEP199900365A
Other languages
Estonian (et)
Inventor
Magnus Brandt Per-Olof
Bolin Thomas
Imberg Ulrik
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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
Priority claimed from SE9700669A external-priority patent/SE508506C2/en
Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Publication of EE9900365A publication Critical patent/EE9900365A/en
Publication of EE03499B1 publication Critical patent/EE03499B1/en

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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • H03F3/1935—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices with junction-FET devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1775—Parallel LC in shunt or branch path
    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1791—Combined LC in shunt or branch path
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Transceivers (AREA)
  • Amplifiers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Burglar Alarm Systems (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
EEP199900365A 1997-02-25 1998-02-20 Apparatus and method of telecommunications EE03499B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9700669A SE508506C2 (en) 1997-02-25 1997-02-25 Device and method of telecommunication
PCT/SE1998/000305 WO1998037626A1 (en) 1997-02-25 1998-02-20 Device and process for telecommunication

Publications (2)

Publication Number Publication Date
EE9900365A true EE9900365A (en) 2000-04-17
EE03499B1 EE03499B1 (en) 2001-08-15

Family

ID=20405927

Family Applications (1)

Application Number Title Priority Date Filing Date
EEP199900365A EE03499B1 (en) 1997-02-25 1998-02-20 Apparatus and method of telecommunications

Country Status (6)

Country Link
JP (1) JP4073964B2 (en)
KR (1) KR100463924B1 (en)
AU (1) AU737208B2 (en)
EE (1) EE03499B1 (en)
HK (1) HK1027225A1 (en)
MY (1) MY128729A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5062797B2 (en) * 2000-05-22 2012-10-31 昭和電工株式会社 Organic electroluminescence device and light emitting material
WO2004082138A1 (en) 2003-03-14 2004-09-23 Ntt Docomo Inc. Matching circuit
US7567782B2 (en) * 2006-07-28 2009-07-28 Freescale Semiconductor, Inc. Re-configurable impedance matching and harmonic filter system
KR101548811B1 (en) 2013-10-31 2015-08-31 삼성전기주식회사 Dual band wireless communication apparatus with advanced harmonic spurious reduction
WO2015093462A1 (en) 2013-12-20 2015-06-25 株式会社村田製作所 High-frequency circuit and transceiver circuit using high-frequency circuit
CN107210721B (en) * 2015-02-02 2020-10-27 株式会社村田制作所 Variable filter circuit, high-frequency module circuit, and communication device
WO2018061950A1 (en) 2016-09-29 2018-04-05 株式会社村田製作所 Acoustic wave filter device, multiplexer, high-frequency front end circuit, and communication device
WO2018061949A1 (en) * 2016-09-29 2018-04-05 株式会社村田製作所 Acoustic wave filter device, multiplexer, high-frequency front end circuit, and communication device
WO2018135538A1 (en) * 2017-01-19 2018-07-26 株式会社村田製作所 High frequency filter, high frequency front end circuit and communication device
CN108183331B (en) * 2017-12-14 2020-12-01 Oppo广东移动通信有限公司 Antenna tuning circuit, antenna device and mobile terminal
CN114844515B (en) * 2022-03-25 2023-08-29 中国电子科技集团公司第二十九研究所 Device and method for improving high-power output signal spectrum quality of broadband electronic equipment

Also Published As

Publication number Publication date
AU737208B2 (en) 2001-08-09
JP4073964B2 (en) 2008-04-09
MY128729A (en) 2007-02-28
EE03499B1 (en) 2001-08-15
KR100463924B1 (en) 2004-12-30
HK1027225A1 (en) 2001-01-05
KR20000070991A (en) 2000-11-25
JP2001512642A (en) 2001-08-21
AU6641298A (en) 1998-09-09

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Legal Events

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KB4A Valid patent at the end of a year

Effective date: 20021231

KB4A Valid patent at the end of a year

Effective date: 20031231

HE1A Change of address
KB4A Valid patent at the end of a year

Effective date: 20041231

KB4A Valid patent at the end of a year

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KB4A Valid patent at the end of a year

Effective date: 20061231

KB4A Valid patent at the end of a year

Effective date: 20071231

KB4A Valid patent at the end of a year

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KB4A Valid patent at the end of a year

Effective date: 20091231

MM4A Lapsed by not paying the annual fees

Effective date: 20100220