PT96196A - Misturador com acoplamento cruzado para um receptor de radio com frequencia intermedia igual a zero - Google Patents

Misturador com acoplamento cruzado para um receptor de radio com frequencia intermedia igual a zero Download PDF

Info

Publication number
PT96196A
PT96196A PT96196A PT9619690A PT96196A PT 96196 A PT96196 A PT 96196A PT 96196 A PT96196 A PT 96196A PT 9619690 A PT9619690 A PT 9619690A PT 96196 A PT96196 A PT 96196A
Authority
PT
Portugal
Prior art keywords
mixer
balanced
signals
outputs
supplied
Prior art date
Application number
PT96196A
Other languages
English (en)
Inventor
George Hedley Storm Rokos
Original Assignee
Stc Plc
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 Stc Plc filed Critical Stc Plc
Publication of PT96196A publication Critical patent/PT96196A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1433—Balanced arrangements with transistors using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1425—Balanced arrangements with transistors
    • H03D7/1458—Double balanced arrangements, i.e. where both input signals are differential
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0082—Quadrature arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Amplifiers (AREA)

Claims (2)

  1. Pat. Inv. n2. F SxniS. Sr. Director da Divisão de Patentes do Instituto Nacional da Propriedade Industrial STC PLC, britânica, industrial e comercial, com sedè em 1B Portland Place, Loridres ¥IN 3AA, Inglaterra, desejando proteger em Portugal o seu invento de; «ANDAR MISTURADOR COM ACOPLAMENTO CRUZADO PARA UM RECEPTOR DE RADIO COM FREQUÊNCIA INTERMÉDIA IGUAL A ZER0«, declarando ser inventor GSORGB fiEDLEY STORM ROKOS, residente em 16 South Road, Bishop* s Stortford, Herts CM23 3-Jn, o qual é caracterizado pelas seguintes reivindicações;
  2. 12. - Andar misturador para misturar sinais de RF com sinais do oscilador local, no qual os sinais de RF são fornecidos a dois amplificadores equilibrados separados, com saídas equilibradas, sendo essas saídas fornecidas a dois andares misturadores equilibradas separados, juntamente com os sinais do oscilador local em quadratu ra, caracterizado por as duas saídas de cada amplificador serem fornecidas uma a cada um dos andares misturadores. 2S. - Andar misturador de acordo c.om a reivindicação 1, caracte rizado por cada um dos sinais do oscilador em quadratura ser equilibrado e os misturadores serem ambos misturadores equilibrados du pios. 3-· - Andar misturador de acordo com a reivindicação 2, caracte rizado por cada um dos amplificadores diferenciais ser um amplificador formado um par de transístores "long-tail” e cada um dos mis turadores equilibrados duplos compreender dois pares de transístores com emissores ligados em comum, sendo a corrente para cada um dos pares de emissores fornecida a partir do colector de um dos transístores de ura par wlong-tailtt. 4e. - Andar misturador de acordo com a reivindicação 3, caracte rizado por incluir um andar de amplificação "cascode" entre as ligações da saída do amplificador e as entradas do misturador. A Requerente declara que depositou o primeiro pedido de_s ta patente de invenção em Inglaterra em 16 de Dezembro de 1989 sob o nS. 8928439-2, cuja prioridade reivindica. Pede a V. Exâ,, se digne conceder-lbe a respectiva patente de invenção. Lisboa, /7 r«*7 Λ**· Λ ió. ud. t.-j
    *Νβ.· RQBEN MARQOêS ©RANJA ©AR©» àwa!» ·$ϋ»1 4* MwlrM
PT96196A 1989-12-16 1990-12-13 Misturador com acoplamento cruzado para um receptor de radio com frequencia intermedia igual a zero PT96196A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8928439A GB2239143B (en) 1989-12-16 1989-12-16 Cross-coupled mixer stage for zero if radio

Publications (1)

Publication Number Publication Date
PT96196A true PT96196A (pt) 1992-09-30

Family

ID=10668051

Family Applications (1)

Application Number Title Priority Date Filing Date
PT96196A PT96196A (pt) 1989-12-16 1990-12-13 Misturador com acoplamento cruzado para um receptor de radio com frequencia intermedia igual a zero

Country Status (4)

Country Link
EP (1) EP0434203A3 (pt)
GB (1) GB2239143B (pt)
IE (1) IE904179A1 (pt)
PT (1) PT96196A (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321148B (en) * 1997-01-11 2000-10-25 Plessey Semiconductors Ltd Double balanced mixer
GB2321352B (en) * 1997-01-11 2001-04-04 Plessey Semiconductors Ltd Image reject mixer
GB2341502B (en) * 1998-09-08 2003-01-22 Mitel Semiconductor Ltd Image reject mixer circuit arrangements
DE19844970C2 (de) * 1998-09-30 2001-02-22 Siemens Ag Schaltungsanordnung zum Mischen eines Eingangssignals und eines Oszillatorsignals miteinander
DE19901751B4 (de) * 1999-01-18 2005-11-24 Rohde & Schwarz Gmbh & Co. Kg Mehrfachüberlagerungsstufe für einen Empfänger oder Spektrumanalysator
DE10004995A1 (de) * 2000-02-04 2001-08-09 Infineon Technologies Ag Analogmultiplizierer
JP3510556B2 (ja) * 2000-03-30 2004-03-29 Ｎｅｃ化合物デバイス株式会社 イメージリジェクションミキサ及びそれを用いた受信機
US6980787B1 (en) * 2000-09-26 2005-12-27 Ati International Srl Image rejection mixing in wideband applications
WO2002071595A1 (en) * 2001-03-01 2002-09-12 Telefonaktiebolaget L.M. Ericsson Balanced frequency converter using fets
US6810242B2 (en) * 2002-09-30 2004-10-26 Skyworks Solutions, Inc. Subharmonic mixer
GB0308962D0 (en) * 2003-04-17 2003-05-28 Nokia Corp A mixer arrangement
US7565128B2 (en) 2003-09-23 2009-07-21 Nxp B.V. High performance low noise amplifier

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60130204A (ja) * 1983-12-17 1985-07-11 Toshiba Corp 掛算回路
GB2177860B (en) * 1985-07-09 1989-04-26 Multitone Electronics Plc R.f. mixer
DE3815055A1 (de) * 1988-05-04 1989-11-16 Standard Elektrik Lorenz Ag Quadratur-empfaenger

Also Published As

Publication number Publication date
GB2239143A (en) 1991-06-19
GB2239143B (en) 1993-06-16
EP0434203A3 (en) 1991-10-09
GB8928439D0 (en) 1990-02-21
IE904179A1 (en) 1991-06-19
EP0434203A2 (en) 1991-06-26

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19920507

FC3A Refusal

Effective date: 19980420