Nothing Special   »   [go: up one dir, main page]

GB2476035B - Improvements relating to power amplifiers and antennas - Google Patents

Improvements relating to power amplifiers and antennas

Info

Publication number
GB2476035B
GB2476035B GB0921421.4A GB0921421A GB2476035B GB 2476035 B GB2476035 B GB 2476035B GB 0921421 A GB0921421 A GB 0921421A GB 2476035 B GB2476035 B GB 2476035B
Authority
GB
United Kingdom
Prior art keywords
antennas
power amplifiers
improvements relating
relating
amplifiers
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB0921421.4A
Other versions
GB2476035A (en
GB0921421D0 (en
Inventor
Gaynor Michael
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microsoft Technology Licensing LLC
Original Assignee
Microsoft Technology Licensing LLC
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 Microsoft Technology Licensing LLC filed Critical Microsoft Technology Licensing LLC
Priority to GB0921421.4A priority Critical patent/GB2476035B/en
Priority to GB1602953.0A priority patent/GB2532901B/en
Publication of GB0921421D0 publication Critical patent/GB0921421D0/en
Publication of GB2476035A publication Critical patent/GB2476035A/en
Application granted granted Critical
Publication of GB2476035B publication Critical patent/GB2476035B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H03F3/195—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only in integrated circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H03F1/0272—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the output signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for
    • H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
    • 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/387—A circuit being added at the output of an amplifier to adapt the output impedance of the amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
GB0921421.4A 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas Active GB2476035B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0921421.4A GB2476035B (en) 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas
GB1602953.0A GB2532901B (en) 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0921421.4A GB2476035B (en) 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas

Publications (3)

Publication Number Publication Date
GB0921421D0 GB0921421D0 (en) 2010-01-20
GB2476035A GB2476035A (en) 2011-06-15
GB2476035B true GB2476035B (en) 2016-06-01

Family

ID=41642062

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0921421.4A Active GB2476035B (en) 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas
GB1602953.0A Active GB2532901B (en) 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1602953.0A Active GB2532901B (en) 2009-12-08 2009-12-08 Improvements relating to power amplifiers and antennas

Country Status (1)

Country Link
GB (2) GB2476035B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2502787B (en) * 2012-06-06 2015-06-17 Samsung Electronics Co Ltd Adaptive antenna impedance matching
GB2502848B (en) * 2012-06-06 2015-01-28 Samsung Electronics Co Ltd Adaptive antenna impedance matching
US9531059B2 (en) 2013-05-24 2016-12-27 Microsoft Technology Licensing, Llc Side face antenna for a computing device case
US9698466B2 (en) 2013-05-24 2017-07-04 Microsoft Technology Licensing, Llc Radiating structure formed as a part of a metal computing device case
US9543639B2 (en) 2013-05-24 2017-01-10 Microsoft Technology Licensing, Llc Back face antenna in a computing device case
CN103532509A (en) * 2013-09-25 2014-01-22 华为终端有限公司 Circuit, method and mobile terminal for regulating power consumption of power amplifier
CN208589964U (en) 2015-09-11 2019-03-08 菲力尔系统公司 System for controlling the bias in pulse power amplifier
CN112154604B (en) 2018-05-23 2024-07-30 华为技术有限公司 Antenna controller for antenna with linear power amplifier

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5880635A (en) * 1997-04-16 1999-03-09 Sony Corporation Apparatus for optimizing the performance of a power amplifier
US6020787A (en) * 1995-06-07 2000-02-01 Motorola, Inc. Method and apparatus for amplifying a signal
EP1093222A1 (en) * 1999-04-01 2001-04-18 Matsushita Electric Industrial Co., Ltd. Transmitter and receiver
EP1298810A2 (en) * 2001-09-27 2003-04-02 Kabushiki Kaisha Toshiba Portable type radio equipment
US6556814B1 (en) * 1999-07-22 2003-04-29 Motorola, Inc. Memory-based amplifier load adjust system
US6952144B2 (en) * 2003-06-16 2005-10-04 Intel Corporation Apparatus and method to provide power amplification
US7292829B2 (en) * 2002-10-10 2007-11-06 Amc Centurion Ab Power amplifier efficiency
US7454227B2 (en) * 2004-11-01 2008-11-18 Kyocera Corporation Wireless communication module, communication terminal, and impedance matching method
US7509100B2 (en) * 2001-04-11 2009-03-24 Kyocera Wireless Corp. Antenna interface unit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6020787A (en) * 1995-06-07 2000-02-01 Motorola, Inc. Method and apparatus for amplifying a signal
US5880635A (en) * 1997-04-16 1999-03-09 Sony Corporation Apparatus for optimizing the performance of a power amplifier
EP1093222A1 (en) * 1999-04-01 2001-04-18 Matsushita Electric Industrial Co., Ltd. Transmitter and receiver
US6556814B1 (en) * 1999-07-22 2003-04-29 Motorola, Inc. Memory-based amplifier load adjust system
US7509100B2 (en) * 2001-04-11 2009-03-24 Kyocera Wireless Corp. Antenna interface unit
EP1298810A2 (en) * 2001-09-27 2003-04-02 Kabushiki Kaisha Toshiba Portable type radio equipment
US7292829B2 (en) * 2002-10-10 2007-11-06 Amc Centurion Ab Power amplifier efficiency
US6952144B2 (en) * 2003-06-16 2005-10-04 Intel Corporation Apparatus and method to provide power amplification
US7454227B2 (en) * 2004-11-01 2008-11-18 Kyocera Corporation Wireless communication module, communication terminal, and impedance matching method

Also Published As

Publication number Publication date
GB2476035A (en) 2011-06-15
GB201602953D0 (en) 2016-04-06
GB2532901A (en) 2016-06-01
GB0921421D0 (en) 2010-01-20
GB2532901B (en) 2016-09-28

Similar Documents

Publication Publication Date Title
IL216905A0 (en) Improvements in or relating to antennas
GB2479182B (en) Power amplifier
TWM389983U (en) Power connector and combination structure thereof
GB0805393D0 (en) Improvements in and relating to antennas
EP2442442A4 (en) Power amplifier and transmitter
EP2297847A4 (en) Rf power amplifiers with linearization
EP2329136A4 (en) Wave power plant
EP2343448A4 (en) Wave power plant
GB2532901B (en) Improvements relating to power amplifiers and antennas
EP2489102A4 (en) Power strip
EP2528229A4 (en) Multi-band power amplifier
EP2442396A4 (en) Power battery
EP2265814A4 (en) Wave power plant
GB2495413B (en) Improvements in or relating to power converters
ZA201201369B (en) Improvements in and relating to cable-barriers
GB201005028D0 (en) Improvements in and relating to strengthening antenna towers
GB0919394D0 (en) Improvements relating to load cells
EP2425125A4 (en) Wave power plant
TWM385839U (en) Improved signal and power connector structure
GB201203240D0 (en) Power setting
EP2331812A4 (en) Wave power plant
GB0917434D0 (en) Improvements relating to power adaptora
GB2481550B (en) Power setting
GB0805232D0 (en) Improvements in and relating to antennas
PL388926A1 (en) Chimney-wind power plant

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20130704 AND 20130710

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20150115 AND 20150121