BR9807747A - Dispositivos de filtro e amplificador de energia, processo para a supressão das harmÈnicas em um sinal de frequência de rádio, e, estação móvel. - Google Patents

Dispositivos de filtro e amplificador de energia, processo para a supressão das harmÈnicas em um sinal de frequência de rádio, e, estação móvel.

Info

Publication number
BR9807747A
BR9807747A BR9807747-3A BR9807747A BR9807747A BR 9807747 A BR9807747 A BR 9807747A BR 9807747 A BR9807747 A BR 9807747A BR 9807747 A BR9807747 A BR 9807747A
Authority
BR
Brazil
Prior art keywords
frequency band
filter
harmonics
suppression
energy
Prior art date
Application number
BR9807747-3A
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
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BR9807747A publication Critical patent/BR9807747A/pt

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)
  • Amplifiers (AREA)
  • Transceivers (AREA)

Abstract

"DISPOSITIVOS DE FILTRO E AMPLIFICADOR DE ENERGIA, PROCESSO PARA A SUPRESSãO DAS HARMÈNICAS EM UM SINAL DE FREQuêNCIA DE RáDIO, E, ESTAçãO MóVEL". A presente invenção refere-se a um dispositivo amplificador de energia (10), comutável para pelo menos duas bandas de freq³ência básicas separadas, para sinais de freq³ência de rádio com supressão efetiva de harmónicas, onde as harmónicas, correspondentes a uma primeira banda de freq³ência básica, podem se sobrepor à faixa de freq³ência de pelo menos uma segunda banda de freq³ência básica. O dispositivo amplificador de energia (10) compreende um amplificador de energia (1) e um circuito de impedância coincidente(2), comutável por meio de um diodo PIN, que fornece uma impedância de carga adaptada a cada banda de freq³ência básica individual. Ademais, o dispositivo amplificador de energia compreende um dispositivo de filtro (3) que compreende um filtro de baixa passagem fixo (3b) e um filtro comutável (3b) agindo como um filtro de entalhe engatável e desengatável, que compreende pelo menos um diodo PIN reversível. Esse filtro comutável (3a) permite a passagem de sinais, em um primeiro modo, na primeira banda de freq³ência básica e suprime ao mesmo tempo pelo menos uma ordem de harmónicas correspondendo a essa banda de freq³ência básica. Em um segundo modo, a segunda banda de freq³ência é transmitida sem perdas apreciáveis, e as harmónicas são suprimidas pelo filtro de baixa passagem fixo (3a).
BR9807747-3A 1997-02-25 1998-02-20 Dispositivos de filtro e amplificador de energia, processo para a supressão das harmÈnicas em um sinal de frequência de rádio, e, estação móvel. BR9807747A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9700669A SE508506C2 (sv) 1997-02-25 1997-02-25 Anordning och förfarande vid telekommunikation
US09/023,162 US6023611A (en) 1997-02-25 1998-02-13 Filter device for suppressing harmonics in radio frequency signals when dual frequencies exist
PCT/SE1998/000305 WO1998037626A1 (en) 1997-02-25 1998-02-20 Device and process for telecommunication

Publications (1)

Publication Number Publication Date
BR9807747A true BR9807747A (pt) 2000-02-22

Family

ID=26662910

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9807747-3A BR9807747A (pt) 1997-02-25 1998-02-20 Dispositivos de filtro e amplificador de energia, processo para a supressão das harmÈnicas em um sinal de frequência de rádio, e, estação móvel.

Country Status (6)

Country Link
US (1) US6023611A (pt)
EP (1) EP0963624A1 (pt)
CN (1) CN1135688C (pt)
BR (1) BR9807747A (pt)
SE (1) SE508506C2 (pt)
WO (1) WO1998037626A1 (pt)

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TWI654830B (zh) * 2018-05-18 2019-03-21 立積電子股份有限公司 功率放大裝置
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Also Published As

Publication number Publication date
SE9700669L (sv) 1998-08-26
WO1998037626A1 (en) 1998-08-27
CN1135688C (zh) 2004-01-21
SE508506C2 (sv) 1998-10-12
EP0963624A1 (en) 1999-12-15
CN1249079A (zh) 2000-03-29
SE9700669D0 (sv) 1997-02-25
US6023611A (en) 2000-02-08

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements