MY128729A - Device and process for telecommunication - Google Patents

Device and process for telecommunication

Info

Publication number
MY128729A
MY128729A MYPI98000585A MYPI9800585A MY128729A MY 128729 A MY128729 A MY 128729A MY PI98000585 A MYPI98000585 A MY PI98000585A MY PI9800585 A MYPI9800585 A MY PI9800585A MY 128729 A MY128729 A MY 128729A
Authority
MY
Malaysia
Prior art keywords
basic frequency
frequency band
filter
harmonics
power amplifier
Prior art date
Application number
MYPI98000585A
Other languages
English (en)
Inventor
Tomas Bolin
Per-Olof Brandt
Ulrik Imberg
Original Assignee
Ericsson Telefon Ab L M
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/sv
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MY128729A publication Critical patent/MY128729A/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)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Filters And Equalizers (AREA)
  • Transceivers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Burglar Alarm Systems (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
MYPI98000585A 1997-02-25 1998-02-12 Device and process for telecommunication MY128729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9700669A SE508506C2 (sv) 1997-02-25 1997-02-25 Anordning och förfarande vid telekommunikation

Publications (1)

Publication Number Publication Date
MY128729A true MY128729A (en) 2007-02-28

Family

ID=20405927

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI98000585A MY128729A (en) 1997-02-25 1998-02-12 Device and process for telecommunication

Country Status (6)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5062797B2 (ja) * 2000-05-22 2012-10-31 昭和電工株式会社 有機エレクトロルミネッセンス素子および発光材料
CN1762097B (zh) 2003-03-14 2010-10-13 株式会社Ntt都科摩 匹配电路和包括匹配电路的功率放大器
US7567782B2 (en) * 2006-07-28 2009-07-28 Freescale Semiconductor, Inc. Re-configurable impedance matching and harmonic filter system
KR101548811B1 (ko) 2013-10-31 2015-08-31 삼성전기주식회사 고조파 저감특성이 개선된 듀얼 밴드 무선 통신 장치
WO2015093462A1 (ja) * 2013-12-20 2015-06-25 株式会社村田製作所 高周波回路及び該高周波回路を用いた送受信回路
JP6406362B2 (ja) * 2015-02-02 2018-10-17 株式会社村田製作所 可変フィルタ回路、高周波モジュール回路、および、通信装置
WO2018061950A1 (ja) * 2016-09-29 2018-04-05 株式会社村田製作所 弾性波フィルタ装置、マルチプレクサ、高周波フロントエンド回路及び通信装置
WO2018061949A1 (ja) 2016-09-29 2018-04-05 株式会社村田製作所 弾性波フィルタ装置、マルチプレクサ、高周波フロントエンド回路及び通信装置
WO2018135538A1 (ja) * 2017-01-19 2018-07-26 株式会社村田製作所 高周波フィルタ、高周波フロントエンド回路、および通信装置
CN108183331B (zh) * 2017-12-14 2020-12-01 Oppo广东移动通信有限公司 天线调谐电路、天线装置以及移动终端
CN114844515B (zh) * 2022-03-25 2023-08-29 中国电子科技集团公司第二十九研究所 提高宽带电子设备大功率输出信号频谱质量的装置及方法

Also Published As

Publication number Publication date
KR100463924B1 (ko) 2004-12-30
EE03499B1 (et) 2001-08-15
EE9900365A (et) 2000-04-17
AU6641298A (en) 1998-09-09
KR20000070991A (ko) 2000-11-25
JP4073964B2 (ja) 2008-04-09
AU737208B2 (en) 2001-08-09
HK1027225A1 (en) 2001-01-05
JP2001512642A (ja) 2001-08-21

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