MXPA03003663A - Transceptor if cero. - Google Patents

Transceptor if cero.

Info

Publication number
MXPA03003663A
MXPA03003663A MXPA03003663A MXPA03003663A MXPA03003663A MX PA03003663 A MXPA03003663 A MX PA03003663A MX PA03003663 A MXPA03003663 A MX PA03003663A MX PA03003663 A MXPA03003663 A MX PA03003663A MX PA03003663 A MXPA03003663 A MX PA03003663A
Authority
MX
Mexico
Prior art keywords
frequency
output
transmit
transceiver
receive band
Prior art date
Application number
MXPA03003663A
Other languages
English (en)
Inventor
Paul E Peterzell
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of MXPA03003663A publication Critical patent/MXPA03003663A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Un transmisor y receptor de Frecuencia Intermedia (IF) se implementan dentro de un transceptor para eliminar la interferencia en la banda de recepcion. Una salida de un oscilador superior sintonizable para generar una fuente de frecuencia que es un multiplo entero de la frecuencia LO de transmision deseada. La fuente de frecuencia esta acoplada a un limitador de amplitud y divisor de frecuencia. La salida del divisor de frecuencia se utiliza como el LO de transmision para convertir en forma ascendente directamente las senales de banda base a la frecuencia de salida deseada, sin la necesidad de una etapa IF. La conversion ascendente directa de las senales de transmision de banda base sin una etapa IF, elimina los productos de frecuencia espuria que se producen en la banda de recepcion.
MXPA03003663A 2000-10-26 2001-10-24 Transceptor if cero. MXPA03003663A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69777900A 2000-10-26 2000-10-26
PCT/US2001/050894 WO2002049224A2 (en) 2000-10-26 2001-10-24 Zero if transceiver

Publications (1)

Publication Number Publication Date
MXPA03003663A true MXPA03003663A (es) 2004-05-04

Family

ID=24802498

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03003663A MXPA03003663A (es) 2000-10-26 2001-10-24 Transceptor if cero.

Country Status (9)

Country Link
EP (1) EP1329029A2 (es)
JP (1) JP2004521532A (es)
KR (1) KR20030044043A (es)
CN (1) CN1547807A (es)
AU (1) AU2002243396A1 (es)
BR (1) BR0114908A (es)
CA (1) CA2426934A1 (es)
MX (1) MXPA03003663A (es)
WO (1) WO2002049224A2 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008252249A (ja) * 2007-03-29 2008-10-16 Mitsubishi Electric Corp 衛星通信用地上局装置
JP4914283B2 (ja) * 2007-04-20 2012-04-11 日本無線株式会社 周波数シンセサイザ回路
KR20120017071A (ko) * 2009-05-15 2012-02-27 시티에스 코포레이션 고성능 ｒｆ ｒｘ 모듈
TWI616067B (zh) * 2016-10-14 2018-02-21 瑞昱半導體股份有限公司 雙模訊號收發裝置與其方法
CN107786240B (zh) * 2017-10-12 2019-10-15 安徽白鹭电子科技有限公司 多重载波频率跳变的数字通信电台装置
CN113890561B (zh) * 2021-11-17 2023-07-21 歌尔科技有限公司 一种电子设备及其射频电路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI112133B (fi) * 1996-03-29 2003-10-31 Nokia Corp Menetelmä kahdella eri taajuuusalueella toimivan radioviestinjärjestelmän suoramuunnoslähetin/vastaanottimen taajuuksien muodostamiseksi ja kahdella taajuusalueella toimivan radioviestinjärjestelmänsuoramuunnoslähetin/vastaanotin sekä edellisten käyttö matkaviestimessä
JP3475037B2 (ja) * 1997-03-14 2003-12-08 株式会社東芝 無線機

Also Published As

Publication number Publication date
JP2004521532A (ja) 2004-07-15
BR0114908A (pt) 2006-05-09
CA2426934A1 (en) 2002-06-20
WO2002049224A2 (en) 2002-06-20
EP1329029A2 (en) 2003-07-23
WO2002049224A3 (en) 2003-03-13
CN1547807A (zh) 2004-11-17
KR20030044043A (ko) 2003-06-02
AU2002243396A1 (en) 2002-06-24

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