公开(公告)号：EP1570572A4

公开(公告)日：2006-08-30

申请号：EP03790018

申请日：2003-11-24

申请人： CREE MICROWAVE LLC

发明人： PENGELLY RAYMOND SYDNEY ,  WOOD SIMON MAURICE ,  QUINN JOHN PHILLIP

IPC分类号： H01L23/66 ,  H01L25/07 ,  H03F3/60 ,  H03F3/68

CPC分类号： H03F3/602 ,  H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L25/072 ,  H01L2223/6644 ,  H01L2224/48091 ,  H01L2224/49111 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01014 ,  H01L2924/01023 ,  H01L2924/10329 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/1306 ,  H01L2924/13063 ,  H01L2924/13064 ,  H01L2924/19043 ,  H01L2924/3011 ,  H01L2924/30111 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

摘要： Disclosed are a multi-chip power amplifier comprising a plurality chips with each chip being a transistor amplifier, and a housing in which all of the semiconductor chips are mounted. A plurality of input leads extend into the housing and a plurality of output leads extend from the housing. A plurality of first matching networks couple a semiconductor chip to an input lead and a plurality of second matching networks couple each semiconductor chip to an output lead whereby each chip has its own input lead and output lead. By providing all amplifier chips within a single housing with matching networks within the housing coupling the chips to the input and output leads, manufacturing cost is reduced and the overall package footprint on a mounting substrate is reduced. Further, the close proximity of the chips within the housing reduces phase differences among signals in the semiconductor chips.

摘要翻译： 公开了一种多芯片功率放大器，其包括多个芯片，每个芯片是晶体管放大器，以及壳体，其中安装了所有半导体芯片。 多个输入引线延伸到壳体中，并且多个输出引线从壳体延伸。 多个第一匹配网络将半导体芯片耦合到输入引线，并且多个第二匹配网络将每个半导体芯片耦合到输出引线，由此每个芯片具有其自己的输入引线和输出引线。 通过将单个外壳内的所有放大器芯片提供到壳体内的匹配网络，将芯片耦合到输入和输出引线，降低了制造成本，并降低了安装基板上的整体封装占地面积。 此外，壳体内的芯片的紧密接近减少了半导体芯片中的信号之间的相位差。

公开(公告)号：EP1620943A4

公开(公告)日：2006-08-09

申请号：EP04750107

申请日：2004-04-08

申请人： CREE MICROWAVE LLC

发明人： PENGELLY RAYMOND SYDNEY ,  WOOD SIMON MAURICE

IPC分类号： H03F3/68 ,  H03F1/02 ,  H03F1/07 ,  H03F1/32 ,  H03F3/24 ,  H03F3/60

CPC分类号： H03F1/0288 ,  H03F1/0277 ,  H03F1/32 ,  H03F3/602 ,  H03F2201/3203

摘要： An RF power amplifier circuit for amplifying an RF signal over a broad range of power with improved efficiency includes a carrier amplifier for amplifying an RF signal over a first range of power and with a power saturation level below the maximum of the broad range of power is disclosed. A plurality of peak amplifiers are connected in parallel with the carrier amplifier with each of the peak amplifiers being biased to sequentially provide an amplified output signal after the carrier amplifier approaches saturation. The input signal is applied through a signal splitter to the carrier amplifier and the plurality of peak amplifiers, and an output for receiving amplified output signals from the carrier amplifier and the plurality of peak amplifiers includes a resistive load R/2. The split input signal is applied through a 90° transformer to the carrier amplifier, and the outputs of the peak amplifiers are applied through 90° transformers to a output load. When operating below saturation, the carrier amplifier delivers power to a load of 2R and the carrier amplifier delivers current to the load, which is one-half the current at maximum power when the amplifier is saturated. In one embodiment with the output having an impedance, Z, the carrier amplifier and each peak amplifier is connected to the output through an output-matching network presenting an output impedance of less than Z to each amplifier and with each output-matching network having selected phase length to reduce reactance of the output impedance.

摘要翻译： 用于以宽的功率范围放大RF信号并具有提高的效率的RF功率放大器电路包括用于在第一功率范围上放大RF信号的载波放大器，并且功率饱和电平低于宽范围功率的最大值 披露。 多个峰值放大器与载波放大器并联连接，每个峰值放大器被偏置以在载波放大器接近饱和之后顺序地提供放大的输出信号。 输入信号通过信号分离器施加到载波放大器和多个峰值放大器，并且用于接收来自载波放大器和多个峰值放大器的放大输出信号的输出包括电阻负载R / 2。 分离输入信号通过90°变压器施加到载波放大器，峰值放大器的输出通过90°变压器施加到输出负载。 当工作在饱和以下时，载波放大器向2R负载提供电源，载波放大器向负载提供电流，当放大器饱和时，该电流为最大功率时的电流的一半。 在输出具有阻抗Z的一个实施例中，载波放大器和每个峰值放大器通过输出匹配网络连接到输出端，输出匹配网络向每个放大器呈现小于Z的输出阻抗，并且每个输出匹配网络已经选择 相位长度以减小输出阻抗的电抗。

公开(公告)号：EP1620325A4

公开(公告)日：2006-08-09

申请号：EP04749959

申请日：2004-04-09

申请人： CREE MICROWAVE LLC

发明人： PENGELLY RAYMOND SYDNEY ,  WOOD SIMON MAURICE

IPC分类号： H03F1/02 ,  H03F3/68 ,  B65D51/16 ,  B65D51/24 ,  H01L20060101 ,  H03F1/07 ,  H03F1/32 ,  H03F3/19 ,  H03F3/24 ,  H03F3/60

CPC分类号： H03F1/0288 ,  H03F1/0277 ,  H03F1/32 ,  H03F3/602 ,  H03F2200/451 ,  H03F2201/3203

摘要： An RF power amplifier circuit for amplifying an RF signal over a broad range of power with improved efficiency includes a carrier amplifier for amplifying an RF signal over a first range of power and with a power saturation level below the maximum of the broad range of power is disclosed. One or more peak amplifiers are connected in parallel with the carrier amplifier with each of the peak amplifiers being biased to sequentially provide an amplified output signal after the carrier amplifier approaches saturation. The input signal is applied through a signal splitter to the carrier amplifier and the plurality of peak amplifiers, and an output for receiving amplified output signals from the carrier amplifier and the plurality of peak amplifiers includes a resistive load R/2. The split input signal is applied through a 90° transformer to the carrier amplifier, and the outputs of the peak amplifiers are applied through 90° transformers to a output load. When operating below saturation, the carrier amplifier delivers power to a load of 2R when the carrier amplifier delivers current to the load, which is one-half the current at maximum power and the amplifier is saturated. The signal splitter can split the input signal power equally among the carrier and one or more peak amplifiers, or the input signal can be split unequally with the carrier amplifier receiving less input power than each of the peak amplifiers and vice versa.