TW428371B - Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier - Google Patents

Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier

Info

Publication number
TW428371B
TW428371B TW088108816A TW88108816A TW428371B TW 428371 B TW428371 B TW 428371B TW 088108816 A TW088108816 A TW 088108816A TW 88108816 A TW88108816 A TW 88108816A TW 428371 B TW428371 B TW 428371B
Authority
TW
Taiwan
Prior art keywords
noise amplifier
base frequency
frequency signal
low noise
antenna
Prior art date
Application number
TW088108816A
Other languages
Chinese (zh)
Inventor
Chun-Ming Chen
Chang-Hua Chang
Original Assignee
Acer Peripherals 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 Acer Peripherals Inc filed Critical Acer Peripherals Inc
Priority to TW088108816A priority Critical patent/TW428371B/en
Priority to GB0011950A priority patent/GB2362523A/en
Priority to DE10026152A priority patent/DE10026152C2/en
Application granted granted Critical
Publication of TW428371B publication Critical patent/TW428371B/en

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
    • H04B1/38—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
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Amplifiers (AREA)

Abstract

The present invention provides a radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier. The radio transceiver system includes an antenna for receiving or transmitting RF signal; a base frequency signal processor to process the base frequency signal and control the operation of the system; a RF emitting circuit electrically connected between the base frequency signal processor and the antenna to convert the base frequency signal outputted from the base frequency signal processor to RF signal and output it via the antenna; and a RF receiving circuit electrically connected between the base frequency signal processor and the antenna to convert the received RF signal to the base frequency signal and input it to the base frequency signal processor. The RF receiving circuit includes a low noise amplifier to amplify the RF signal received by the antenna. The low noise amplifier also includes a control terminal to control its operating bias point. The base frequency signal processor will vary the operating bias point of the low noise amplifier through the control terminal of the low noise amplifier so that the noise amplifier can keep the RF signal received by the antenna linear and accomplish the function of power saving.
TW088108816A 1999-05-28 1999-05-28 Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier TW428371B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW088108816A TW428371B (en) 1999-05-28 1999-05-28 Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier
GB0011950A GB2362523A (en) 1999-05-28 2000-05-17 A transceiver with the bias of an amplifier in the receiver controlled by a baseband processor
DE10026152A DE10026152C2 (en) 1999-05-28 2000-05-26 Wireless transceiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW088108816A TW428371B (en) 1999-05-28 1999-05-28 Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier
GB0011950A GB2362523A (en) 1999-05-28 2000-05-17 A transceiver with the bias of an amplifier in the receiver controlled by a baseband processor

Publications (1)

Publication Number Publication Date
TW428371B true TW428371B (en) 2001-04-01

Family

ID=26244295

Family Applications (1)

Application Number Title Priority Date Filing Date
TW088108816A TW428371B (en) 1999-05-28 1999-05-28 Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier

Country Status (3)

Country Link
DE (1) DE10026152C2 (en)
GB (1) GB2362523A (en)
TW (1) TW428371B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221424B4 (en) * 2002-05-14 2005-12-15 Infineon Technologies Ag Transmitting and receiving arrangement with channel-oriented connection
US6928104B2 (en) 2002-07-18 2005-08-09 Interdigital Technology Corporation Scaling using gain factors for use in data detection for wireless code division multiple access communication systems
US7010330B1 (en) 2003-03-01 2006-03-07 Theta Microelectronics, Inc. Power dissipation reduction in wireless transceivers
US7283851B2 (en) 2004-04-05 2007-10-16 Qualcomm Incorporated Power saving mode for receiver circuit blocks based on transmitter activity
WO2006069476A1 (en) * 2004-12-28 2006-07-06 Zte Corporation A harmonic suppression method for bs transceiver and rf front-end device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514943C2 (en) * 1994-01-12 2001-05-21 Ericsson Ge Mobile Communicat Conserving power in battery-powered transceiver
EP0725479B1 (en) * 1995-01-31 2002-01-09 Nec Corporation Mobile radio unit
US5907798A (en) * 1996-06-21 1999-05-25 Lucent Technologies Inc. Wireless telephone intermodulation performance enhancement techniques
US5809400A (en) * 1996-06-21 1998-09-15 Lucent Technologies Inc. Intermodulation performance enhancement by dynamically controlling RF amplifier current
US6498926B1 (en) * 1997-12-09 2002-12-24 Qualcomm Incorporated Programmable linear receiver having a variable IIP3 point
US6311048B1 (en) * 1998-09-24 2001-10-30 Aravind Loke Intelligent control of receiver linearity based on interference

Also Published As

Publication number Publication date
GB2362523A (en) 2001-11-21
GB0011950D0 (en) 2000-07-05
DE10026152C2 (en) 2002-12-12
DE10026152A1 (en) 2001-02-15

Similar Documents

Publication Publication Date Title
HK1042387A1 (en) Integrated transmitter and receiver components fora dual-band transceiver.
SE9903967L (en) Power control for wireless communication systems
DE60006136D1 (en) GAIN CONTROL LOOP FOR FREQUENCY CONVERSION OF ORTHOGONAL SIGNALS
EP0766410A3 (en) Ultra high frequency radio communication apparatus
SE9702272D0 (en) Device in a radio unit
GB9713158D0 (en) Mobile communication apparatus
EP1198067A3 (en) Radio circuit and control
EP1253727A3 (en) Radio frequency circuit and communications system
TW428371B (en) Radio transceiver system capable of dynamically adjusting the operating bias point of a low noise amplifier
JP2006510257A (en) Maintaining linearity of isolator-free power amplifier by dynamic adjustment of gain and phase
GB2384124B (en) Arrangement and method for radio receiver
US6445729B1 (en) Radio signal transceiver apparatus
KR100537412B1 (en) Radio signal transmit/receive switching circuit using low power switch in time division duplex system
EP0986171A1 (en) Transmitting apparatus and transmitting method
KR100725058B1 (en) Transmission power control apparatus for mobile communication terminal
KR100383612B1 (en) Transmission apparatus of mobile communication terminal
KR100541757B1 (en) Apparatus for detecting power output
KR100493278B1 (en) Base station system in mobile communication system
KR0164353B1 (en) Transmitting circuits for radio communication apparatus
KR100691969B1 (en) Mobile communication terminal, rf transmitting and receiving device and method and device for power switching
KR20040100649A (en) Improvement circuit for cross-modulation characteristic in mobile phone
JPH07336268A (en) Dual mode radio equipment
KR100574551B1 (en) Smart power amplifier module
GB2396263A (en) Amplifier device
KR20040025083A (en) Antenna system having repeater for reducing a signal loss in cable

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees