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公开(公告)号：JPH1041710A
公开(公告)日：1998-02-13
申请号：JP9226797
申请日：1997-04-10
Applicant: HARRIS CORP
Inventor： DITTMER TIMOTHY W , CABRERA GEORGE , DOYLE DALE J
Abstract: PROBLEM TO BE SOLVED: To provide a suspended air dielectric strip line of a simple structure by providing a spacer layer with a channel formed in it and thus forming upper and lower air chambers on a surface opposite to an intermediate layer. SOLUTION: A ground surface 30 is attached to the lower surface 20 of an upper layer 18 and the ground surface 32 is attached to the upper surface 26 of a bottom layer 16 on the other hand. The ground surface 30 is separated from the upper surface 22 of the layer 14 by a flat dielectric spacer layer 40. Similarly, the ground surface 32 is separated from the lower surface 24 of the layer by the flat dielectric spacer layer 42. The channel 50 is formed inside the spacer layer 40 and is extended in a longitudinal direction. The channel 50 forms the air chamber along with the layers 12 and 14. Similarly, the channel 52 is formed in the spacer layer 42. Then, the voltage gradient of a strip line is present over the air dielectric layer of the channels 50 and 52 for minimizing influence from the layer of a solid. The strip line is cooled by air made to flow through the channels 50 and 52.
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2.发明申请
公开(公告)号：WO03017471A3
公开(公告)日：2003-07-10
申请号：PCT/US0225443
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： POGGI PETER JOHN , CABRERA GEORGE , MOORE PAUL
IPC: H03F3/60
CPC classification number: H03F3/602 , H03F3/60 , H03F2200/198
Abstract: A system and method for improving the input return loss in RF amplifiers is disclosed. One embodiment of the present invention amplifies only one (0°) of the two (0° and 90°) output quadrature signals of 3 dB coupler (310) in an amplifier module while substantially maintaining a constant impedance at the input to the 3 dB coupler (310). This removes one of the design constraints for designing the input network for an amplifier module thereby allowing for more flexible amplifier designs and ease of cascading amplifier modules. One embodiment of the present invention improves the input return loss of an RF amplifier pallet in a cascaded-stage power amplifier circuit for a television transmitter including a 3 dB coupler by replacing one of the two amplifiers connected to the output of the 3 dB coupler with an electrical circuit of substantially equivalent impedance to the input impedance of the non-replaced amplifier.
Abstract translation: 公开了一种改善RF放大器输入回波损耗的系统和方法。 本发明的一个实施例仅在放大器模块中放大3dB耦合器（310）的两个（0°和90°）输出正交信号中的一个（0°），同时在输入端基本保持恒定的阻抗为3dB 耦合器（310）。 这消除了设计用于放大器模块的输入网络的设计约束之一，从而允许更灵活的放大器设计和容易的级联放大器模块。 本发明的一个实施例通过将连接到3dB耦合器的输出的两个放大器中的一个放置在具有3dB耦合器的电视发射机的级联功率放大器电路中来改善RF放大器托盘的输入回波损耗， 与未替换的放大器的输入阻抗基本上相等的阻抗的电路。
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公开(公告)号：WO2007120568A3
公开(公告)日：2008-08-14
申请号：PCT/US2007008523
申请日：2007-04-05
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY WILFRED , DUELLO WAYNE DOUGLAS
CPC classification number: H04B1/0483
Abstract: Systems and methods are provided for generating dual outputs in a digital exciter system. A first signal path (34) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information A second signal path (36) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information. A main exciter output provides one of the signal produced at the first signal path and the signal produced at the second signal path to an associated first destination (42). An auxiliary exciter output provides one of the signal produced at the first signal path and the signal produced at the auxiliary signal path to an associated second signal destination (44).
Abstract translation: 提供了用于在数字激励器系统中产生双输出的系统和方法。 第一信号路径（34）产生调频音频信号，数字信息信号和包括调频音频和数字信息两者的信号。第二信号路径（36）产生调频音频信号，数字 信息信号，以及包括调频音频和数字信息的信号。 主激励器输出提供在第一信号路径处产生的信号和在第二信号路径处产生到相关联的第一目的地（42）的信号之一。 辅助激励器输出提供在第一信号路径处产生的信号和在辅助信号路径处产生的信号到相关联的第二信号目的地（44）之一。
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4.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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公开(公告)号：WO2013055615A3
公开(公告)日：2013-06-20
申请号：PCT/US2012059184
申请日：2012-10-08
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , BORODULIN DMITRI
Abstract: A circuit for amplifying an input signal can comprise a plurality of couplers. A splitting coupler of the plurality of couplers can receive the input signal and a combining coupler of the plurality of couplers can provides an output signal. N number of amplifiers can be included in the circuit to amplify the input signal, wherein N is a non-binary integer greater than one. At least one of the plurality of couplers can comprise a hybrid coupler that has two ports terminated into substantially equal reactances.
Abstract translation: 用于放大输入信号的电路可以包括多个耦合器。 多个耦合器的分离耦合器可以接收输入信号，并且多个耦合器的组合耦合器可以提供输出信号。 N个放大器可以被包括在电路中以放大输入信号，其中N是大于1的非二进制整数。 多个耦合器中的至少一个可以包括混合耦合器，该混合耦合器具有端接到基本相等电抗的两个端口。
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Patent Agency Ranking
公开(公告)号：WO2007120568B1
公开(公告)日：2008-10-09
申请号：PCT/US2007008523
申请日：2007-04-05
Applicant: HARRIS CORP
Inventor： CABRERA GEORGE , DITTMER TIMOTHY WILFRED , DUELLO WAYNE DOUGLAS
CPC classification number: H04B1/0483
Abstract: Systems and methods are provided for generating dual outputs in a digital exciter system. A first signal path (34) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information A second signal path (36) produces one of a frequency modulated audio signal, a digital information signal, and a signal comprising both frequency modulated audio and digital information. A main exciter output provides one of the signal produced at the first signal path and the signal produced at the second signal path to an associated first destination (42). An auxiliary exciter output provides one of the signal produced at the first signal path and the signal produced at the auxiliary signal path to an associated second signal destination (44).
Abstract translation: 提供了用于在数字激励器系统中产生双输出的系统和方法。 第一信号路径（34）产生频率调制音频信号，数字信息信号和包括调频音频和数字信息二者的信号中的一个。第二信号路径（36）产生频率调制音频信号，数字 信息信号和包括调频音频和数字信息的信号。 主激励器输出将在第一信号路径处产生的信号和在第二信号路径处产生的信号中的一个提供给相关联的第一目的地（42）。 辅助激励器输出将在第一信号路径处产生的信号和在辅助信号路径处产生的信号中的一个提供给相关联的第二信号目的地（44）。
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7.发明公开
公开(公告)号：EP1436892A4
公开(公告)日：2005-01-19
申请号：EP02768489
申请日：2002-08-12
Applicant: HARRIS CORP
Inventor： POGGI PETER JOHN , CABRERA GEORGE , MOORE PAUL
CPC classification number: H03F3/602 , H03F3/60 , H03F2200/198
Abstract: A system and method for improving the input return loss in RF amplifiers is disclosed. One embodiment of the present invention amplifies only one (0°) of the two (0° and 90°) output quadrature signals of 3 dB coupler (310) in an amplifier module while substantially maintaining a constant impedance at the input to the 3 dB coupler (310). This removes one of the design constraints for designing the input network for an amplifier module thereby allowing for more flexible amplifier designs and ease of cascading amplifier modules. One embodiment of the present invention improves the input return loss of an RF amplifier pallet in a cascaded-stage power amplifier circuit for a television transmitter including a 3 dB coupler by replacing one of the two amplifiers connected to the output of the 3 dB coupler with an electrical circuit of substantially equivalent impedance to the input impedance of the non-replaced amplifier.
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8.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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9.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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10.发明公开
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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