EP0956648A1 - Dispositif a combineurs emetteurs - Google Patents

Dispositif a combineurs emetteurs

Info

Publication number
EP0956648A1
EP0956648A1 EP97914741A EP97914741A EP0956648A1 EP 0956648 A1 EP0956648 A1 EP 0956648A1 EP 97914741 A EP97914741 A EP 97914741A EP 97914741 A EP97914741 A EP 97914741A EP 0956648 A1 EP0956648 A1 EP 0956648A1
Authority
EP
European Patent Office
Prior art keywords
single carrier
transmitter
carrier power
power amplifier
amplifier
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.)
Withdrawn
Application number
EP97914741A
Other languages
German (de)
English (en)
Inventor
Torbjörn JOHNSON
Jens Malmgren
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.)
Radio Design Innovation AB
Original Assignee
Radio Design Innovation AB
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 Radio Design Innovation AB filed Critical Radio Design Innovation AB
Publication of EP0956648A1 publication Critical patent/EP0956648A1/fr
Withdrawn legal-status Critical Current

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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • 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
    • H03F1/0277—Selecting one or more amplifiers from a plurality of amplifiers
    • 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
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
    • 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
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)

Definitions

  • the present invention relates to a transmitter combiner arrangement, and more specifically a transmitter combiner arrangement usable in a base station of a multilobe telecom- munication system having phased array antennas.
  • the invention is not limited to such a system, but is very use ⁇ ful with systems having a large dynamic range, e.g. up to 110 dB or more.
  • the transmitter arrangement according to the invention enables amplification of low and high levels with high efficiency by means of a hybride arrangement combining efficient single carrier power amplifiers (SCPA) and high power multicarrier power amplifiers (MCPA) .
  • SCPA single carrier power amplifier
  • MCPA high power multicarrier power amplifiers
  • the multicarrier power amplifier is a known amplifying circuit having high power but low efficiency.
  • the advantage of this circuit is that it may accomodate many channels.
  • the present invention provides a transmitter combiner arrangement comprising a hybride of progressively coupled single carrier power amplifiers and a multicarrier power amplifier connected with a combiner network.
  • Figure 1 is a block diagram of a first embodiment of the invention including progressively coupled single carrier power amplifiers and a multicarrier power amplifier con ⁇ nected by a combiner network;
  • Figure 2 is a block diagram of another embodiment of the invention in which single carrier power amplifiers are connected by a filter bank;
  • Figure 3 is a block diagram of a further embodiment- of the invention in which single carrier power amplifiers are connected by the filter bank and a 3 dB combiner;
  • Figure 4A is a block diagram of a preferred embodiment of a single carrier power amplifier according to the inven- tion.
  • Figure 4B is a block diagram of a possible implementa ⁇ tion of a single carrier power amplifier.
  • the transmitter combiner arrangement according to the present invention is suitable for use in communication systems that transmit signals with a wide dynamic range.
  • the power is distributed to many radiating elements, and in order to obtain low sidelobe levels, the power sent to the different radiating elements may vary 30 dB .
  • the base station includes a lobe-shaping unit for con ⁇ trolling the signals to the phased array antenna.
  • a base station controller in turn controls the base stations of the telecommunication system.
  • the lobe-shaping unit and the base station controller do not form any parts of the present in- vention.
  • the transmitter arrangement includes a number of SCPAs connected by transmitter combiner circuits WILKD3DB, which may be of the conventional Wilkin- son 3dB type, in a step arrangement having equal attenuation steps.
  • WILKD3DB transmitter combiner circuits
  • the top SCPA will be able to furnish the lowest output power.
  • the SCPAs In front of the SCPAs are variable attenuators WA.
  • the inputs to the various SCPAs are arranged according to the input level or power requirement, such that the correct output power is obtained at the. output.
  • At the top transmitter combiner is a further expansion input for additional low power channels.
  • the transmitter arrangement also comprises a multi- carrier power amplifier.
  • a combiner network In front of the MCPAs is a combiner network, which may consist of transmitter combiners or a resistive combiner network.
  • the combiner network is pre ⁇ ferably symmetrical, such that the gain through the ampli ⁇ bombs is the same independent of input port.
  • the MCPA is suitable for amplifying many low levels since these will not generate important intermodulation products.
  • the SCPAs and the MCPA are combined in a final trans ⁇ mitter combiner.
  • the control unit controls the various amplifier units of the SCPAs and the MCPA by pro- viding the correct input voltage and input currents, i.e. the bias of the amplifier units. Thus the efficiency of the amplifiers can be optimised.
  • the control unit also receives input information from a base site controller and a lobe- shaping unit, if the transmitter combiner arrangement according to the invention forms part of such a telecommu ⁇ nication system.
  • FIG 2 is shown another embodiment of the present invention.
  • the SCPAs are connected by a filter bank to the final transmitter combinex.
  • the filters of the filter bank are connected by ⁇ /4 and ⁇ /2 transmission lines to the combiner for correct addition at the combiner.
  • FIG 3 is shown an embodiment of the invention featuring only SCPAs combined with filters. This embodiment is useful when it is desired to amplify many similar high level signals. It is especially advantageous with a pre ⁇ ferred embodiment of a single carrier power amplifier according to the present invention as described below with reference to Figures 4A and B.
  • Figure 4A is shown an especially advantageous form of a single carrier power amplifier having variable power and amplification levels.
  • the amplifier comprises a number of amplifier units AMP which may be en ⁇ abled by setting a corresponding number of switches.
  • the amplifier unit at the far left can only output low signal levels.
  • the middle amplifier is also enabled as it can supply medium output " levels.
  • the amplifier unit at the far right is enabled being able to supply high output levels.
  • the middle or right-hand amplifiers are disabled, their biases are turned off so that the power consumption is considerably reduced and the signal is by ⁇ passed.
  • the efficiency of the amplifier is maintained fairly independent of the output signal level.
  • the amplifier arrangement achieves 60 dB gain control. This is achieved by varying the bias of the amplifiers.
  • a voltage variable attenuator WA is used to fine tune the gain.
  • Figure 4B shows a possible implementation of the amplifier circuit including switchable PIN diodes and ⁇ /4 transmission lines MTRL.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Microwave Amplifiers (AREA)

Abstract

L'invention concerne un dispositif à combineurs émetteurs et plus spécifiquement un dispositif de combineurs émetteurs utilisable dans des systèmes de communications émettant des signaux dans une dynamique étendue, par exemple dans une station de base d'un système de télécommunications multilobe comprenant des antennes réseau à commande de phase. Le dispositif émetteur selon l'invention permet l'amplification de haut et bas niveaux avec grande efficacité au moyen d'un montage différentiel comprenant un différentiel constitué d'amplificateurs de puissance à une seule porteuse, couplés progressivement et d'un amplificateur de puissance à plusieurs porteuses connecté à un réseau de combineurs.
EP97914741A 1996-04-29 1997-03-24 Dispositif a combineurs emetteurs Withdrawn EP0956648A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9601619 1996-04-29
SE9601619A SE9601619L (sv) 1996-04-29 1996-04-29 Anordning med sändarkombinerare
PCT/SE1997/000497 WO1997041642A1 (fr) 1996-04-29 1997-03-24 Dispositif a combineurs emetteurs

Publications (1)

Publication Number Publication Date
EP0956648A1 true EP0956648A1 (fr) 1999-11-17

Family

ID=20402375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914741A Withdrawn EP0956648A1 (fr) 1996-04-29 1997-03-24 Dispositif a combineurs emetteurs

Country Status (5)

Country Link
EP (1) EP0956648A1 (fr)
JP (1) JP2000509229A (fr)
AU (1) AU2187597A (fr)
SE (1) SE9601619L (fr)
WO (1) WO1997041642A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19804199A1 (de) * 1998-02-03 1999-08-05 Rohde & Schwarz Hochfrequenz-Sender
JP3387508B2 (ja) * 1998-02-19 2003-03-17 株式会社エヌ・ティ・ティ・ドコモ 無線送信増幅装置
US6211732B1 (en) * 1998-03-12 2001-04-03 Sentel Corporation Comb linear amplifier combiner (CLAC)
KR20010021773A (ko) * 1998-05-14 2001-03-15 다니구찌 이찌로오, 기타오카 다카시 반도체 회로
GB9811382D0 (en) 1998-05-27 1998-07-22 Nokia Mobile Phones Ltd A transmitter
US6418304B1 (en) 1998-09-16 2002-07-09 Lucent Technologies Inc. Method and apparatus for improving efficiency of high-power linear amplifier
US6292053B1 (en) * 1999-11-10 2001-09-18 Lucent Technologies Inc. Power amplifier system
GB9929375D0 (en) 1999-12-10 2000-02-09 Nokia Networks Oy An antenna system
US6587014B2 (en) 2000-01-25 2003-07-01 Paradigm Wireless Communications Llc Switch assembly with a multi-pole switch for combining amplified RF signals to a single RF signal
GB2359206B (en) 2000-02-08 2004-06-23 Wireless Systems Int Ltd Amplifier arrangement
DE60031775T2 (de) * 2000-08-21 2007-09-20 Lucent Technologies Inc. Sende- und Empfangseinrichtung für Basisstationen
FR2816132B1 (fr) * 2000-10-31 2003-02-07 Agence Spatiale Europeenne Dispositif reconfigurable pour amplifier des signaux rf
WO2002052723A2 (fr) * 2000-12-22 2002-07-04 The Johns Hopkins University Amplificateur de puissance a semiconducteurs haute efficacite
US6646504B2 (en) * 2001-08-17 2003-11-11 Harris Corporation Broadband amplifier system having improved linearity and minimum loss
CA2474361A1 (fr) * 2002-01-25 2003-07-31 Siemens Aktiengesellschaft Procede et dispositif permettant de generer un signal porteur multiple haute frequence
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
DE102004054370B3 (de) * 2004-11-10 2006-04-20 Siemens Ag Anordnung zum Anschalten von zumindest einer Sendeeinheit an eine Sende-Empfangsantenne
KR100735316B1 (ko) 2005-06-29 2007-07-04 삼성전자주식회사 통신 시스템에서 신호 송신 시스템 및 방법
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US9106316B2 (en) 2005-10-24 2015-08-11 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification
US8013675B2 (en) 2007-06-19 2011-09-06 Parkervision, Inc. Combiner-less multiple input single output (MISO) amplification with blended control
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US8315336B2 (en) 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
KR20140026458A (ko) 2011-04-08 2014-03-05 파커비전, 인크. Ｒｆ 전력 송신, 변조 및 증폭 시스템들 및 방법들
KR20140034895A (ko) 2011-06-02 2014-03-20 파커비전, 인크. 안테나 제어
CN106415435B (zh) 2013-09-17 2020-08-11 帕克维辛股份有限公司 用于呈现信息承载时间函数的方法、装置和系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735289A (en) * 1971-11-26 1973-05-22 Collins Radio Comp Transmitter combiner having coupled tuned circuits
US5233358A (en) * 1989-04-24 1993-08-03 Hughes Aircraft Company Antenna beam forming system
GB2245102A (en) * 1990-06-16 1991-12-18 British Aerospace A frequency reuse phased array antenna system
US5257415A (en) * 1991-03-20 1993-10-26 Fujitsu Limited Automatic transmission level control device
US5113192A (en) * 1991-05-03 1992-05-12 Conoco Inc. Method for using seismic data acquisition technology for acquisition of ground penetrating radar data
GB2323987B (en) * 1994-01-29 1998-12-02 Motorola Ltd Dual mode remote radio
US5758269A (en) * 1995-03-30 1998-05-26 Lucent Technologies Inc. High-efficient configurable power amplifier for use in a portable unit
US5661434A (en) * 1995-05-12 1997-08-26 Fujitsu Compound Semiconductor, Inc. High efficiency multiple power level amplifier circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9741642A1 *

Also Published As

Publication number Publication date
SE9601619D0 (sv) 1996-04-29
JP2000509229A (ja) 2000-07-18
SE9601619L (sv) 1997-10-30
AU2187597A (en) 1997-11-19
WO1997041642A1 (fr) 1997-11-06

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