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公开(公告)号：JP2000114885A
公开(公告)日：2000-04-21
申请号：JP23329199
申请日：1999-08-19
Applicant: HARRIS CORP
Inventor： BORODULIN DMITRYI , POGGI PETER , HU ZHIQUN , CABERA GEORGE , DITTMER TIMOTHY , ROBERSTON BRYCE
Abstract: PROBLEM TO BE SOLVED: To obtain a power amplifier with a monitoring device monitoring and protecting a system by providing a signal modulating means modulating the gain of an inputted signal and a monitor controlling means impressing a gain control signal to the signal modulating means. SOLUTION: Concerning a signal from power amplifiers PA-1 to PA-N, N inputted signal to be composed by a signal composer CB is impressed to a vector modulator 16 in a case when an RF switch 20 is on (closed), in order to provide an output signal impressed to a load L. A microcontroller MC controls the vector modulator for varying the phase and gain of an RF signal. In addition, the microcontroller MC monitors the operation of an amplifier system, varies the phase or gain of the RF signal and controls the operation of the switch 20 and a DC switch 40 to control the system. The signal modulating means varies the gain of the inputted signal and the monitor control means impresses the gain control signal to the signal modulating means in order to control the gain of the inputted signal.
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2.发明申请
公开(公告)号：WO03017468A3
公开(公告)日：2003-08-21
申请号：PCT/US0225349
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： POGGI PETER JOHN , DITTMER TIMOTHY , CABRERA GEORGE
CPC classification number: H03G3/3042 , H03F1/0222 , H03F1/0233 , H03F1/0244 , H03F1/0277 , H03F3/211 , H03G3/004 , H03G2201/103 , H03G2201/504 , H03G2201/508 , H03G2201/702
Abstract: The variable power supply (12) to an amplifier (10) in an electrical circuit is dynamically controlled through the use of a lookup table (14) responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal (11) where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.
Abstract translation: 通过使用响应于电路的一个或多个操作条件的查找表（14）来动态地控制到电路中的放大器（10）的可变电源（12）。 查找表由一个或多个操作条件索引，并确定要施加到放大器的输入信号的放大量。 本发明的一个实施例包括电视发射机电路，其包括能够放大可变频率COFDM或8VSB输入信号（11）的功率放大器电路，其中通过使用查找表作为输入信号的放大量被动态地控制 输入信号的频率的函数。
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3.发明公开
公开(公告)号：EP1425851A4
公开(公告)日：2005-01-19
申请号：EP02752783
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY , CABRERA GEORGE , BORODULIN DMITRIY
Abstract: An RF wideband amplifier system is provided that includes an M way splitter (S) for receiving an RF input signal and splitting same into M RF signals for respective application to M power amplifier modules (PAM-1) to (PAM-M) that amplify the M signals and apply the amplified M signals to an M way combiner that applies an amplified RF signal to a load. A main controller (M.C.) provides an automatic level control reference signal, representative of the desired output power level of each of the power amplifier modules. Each power amplifier module includes an 2*N way balanced splitter(500) that receives one of the M RF signals and splits the signal into 2*N signal portions and the 2*N RF amplifiers (400-414) that respectively receive the 2* N signal portions and amplify same and provide therefrom 2*N amplified signal portions.
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公开(公告)号：AU2002356024A1
公开(公告)日：2003-03-03
申请号：AU2002356024
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY , BORODULIN DMITRIY , CABRERA GEORGE
IPC: H01P5/18
Abstract: A directional coupler comprises a coupler circuit board which is mounted substantially perpendicular to the surface of a parent circuit board. First and second upper traces are disposed on the opposing surfaces of the coupler circuit board. The coupling between the upper electrically conductive traces determines the odd mode impedance of the coupler. First and second lower traces are also disposed on opposing surfaces and connected to ground. The upper and lower traces are arranged such that the even mode of the impedance is determined by the coupling between the first upper trace and the second lower trace and the coupling between the second upper trace and the first lower trace.
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公开(公告)号：DE60237019D1
公开(公告)日：2010-08-26
申请号：DE60237019
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： POGGI PETER JOHN , DITTMER TIMOTHY , CABRERA GEORGE
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Patent Agency Ranking6.发明公开RF POWER AMPLIFIER TRANSISTOR QUIESCENT CURRENT CHECKING AND ADJUSTING 审中-公开射频功率放大器晶体管的检验与校正RESTING FLOW
公开(公告)号：EP1425852A4
公开(公告)日：2007-05-23
申请号：EP02768490
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： HU ZHIQUN , BORODULIN DMITRIY , CABRERA GEORGE , DITTMER TIMOTHY , MONSON GAVIN , MOORE PAUL
Abstract: A power amplifier system is presented for use in amplifying an RF input signal comprising N sub-power amplifiers (PA-1 to PA-N) are connected in parallel with each receiving and amplifying a portion of the RF input signal. A combiner (CB) combines the amplified portions of the RF input signal to provide a combined output signal. Each sub-amplifier (PA-1 to PA-N) includes at least one transistor having an input port that receives a DC bias voltage and an output port, such that when the RF input signal is not present a quiescent current flows through the output port. A controller (M.C.) is operative when the RF signal is not present to check and adjust the magnitude of the quiescent current flowing in each of the sub-amplifier output ports in the sequence of 1 N.
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公开(公告)号：EP1428313A4
公开(公告)日：2006-06-07
申请号：EP02759314
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： POGGI PETER JOHN , DITTMER TIMOTHY , CABRERA GEORGE
CPC classification number: H03G3/3042 , H03F1/0222 , H03F1/0233 , H03F1/0244 , H03F1/0277 , H03F3/211 , H03G3/004 , H03G2201/103 , H03G2201/504 , H03G2201/508 , H03G2201/702
Abstract: The variable power supply (12) to an amplifier (10) in an electrical circuit is dynamically controlled through the use of a lookup table (14) responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal (11) where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.
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公开(公告)号：EP1451889A4
公开(公告)日：2004-09-08
申请号：EP02794859
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： BORODULIN DMITRIY , DITTMER TIMOTHY , CABRERA GEORGE
CPC classification number: H01P5/187
Abstract: A directional coupler comprises a coupler circuit board which is mounted substantially perpendicular to the surface of a parent circuit board. First and second upper traces are disposed on the opposing surfaces of the coupler circuit board. The coupling between the upper electrically conductive traces determines the odd mode impedance of the coupler. First and second lower traces are also disposed on opposing surfaces and connected to ground. The upper and lower traces are arranged such that the even mode of the impedance is determined by the coupling between the first upper trace and the second lower trace and the coupling between the'second upper trace and the first lower trace.
Abstract translation: 定向耦合器包括基本上垂直于母电路板的表面安装的耦合器电路板。 第一和第二上部迹线设置在耦合器电路板的相对表面上。 上导电迹线之间的耦合决定耦合器的奇模阻抗。 第一和第二下部迹线也布置在相对的表面上并连接到地面。 上和下迹线被布置成使得阻抗的均匀模式由第一上迹线和第二下迹线之间的耦合以及第二上迹线和第一下迹线之间的耦合来确定。
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公开(公告)号：AU2002324657A1
公开(公告)日：2003-03-03
申请号：AU2002324657
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY , POGGI PETER JOHN
Abstract: The variable power supply to an amplifier in an electrical circuit is dynamically controlled through the use of a lookup table responsive to one or more operating conditions of the electrical circuit. The lookup table is indexed by one or more of the operating conditions and the amount of amplification to be applied to an input signal to the amplifier is determined. One embodiment of the invention comprises a television transmitter circuit including a power amplifier circuit capable of amplifying a variable frequency COFDM or 8VSB input signal where the amount of amplification applied to the input signal is dynamically controlled through the use of a lookup table as a function of the frequency of the input signal.
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公开(公告)号：CA2280471A1
公开(公告)日：2000-02-19
申请号：CA2280471
申请日：1999-08-18
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY , HU ZHIQUN , ROBERTSON BRYCE , BORODULIN DMITRIY , POGGI PETER
Abstract: A power amplifier system is presented for amplifying an RF input signal. The system includes a vector modulator for receiving and modifying an input signal and providing therefrom a modified signal. The system also includes at least one power amplifier the operation of which is monitored and the vector modulator is controlled in accordance with the monitoring.
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