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    • 1. 发明申请
    • N-WAY RF POWER AMPLIFIER CIRCUIT WITH INCREASED BACK-OFF CAPABILITY AND POWER ADDED EFFICIENCY USING UNEQUAL INPUT POWER DIVISION
    • N-WAY射频功率放大器电路具有增加的备用能力和使用不平均输入功率部分的功率增加效率
    • WO2004100215A2
    • 2004-11-18
    • PCT/US2004/011057
    • 2004-04-09
    • CREE MICROWAVE, INC.PENGELLY, Raymond, SydneyWOOD, Simon, Maurice
    • PENGELLY, Raymond, SydneyWOOD, Simon, Maurice
    • H01L
    • H03F1/0288H03F1/0277H03F1/32H03F3/602H03F2200/451H03F2201/3203
    • 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.
    • 一种RF功率放大器电路,用于在提高效率的宽范围的功率范围内放大RF信号,包括载波放大器,用于在第一功率范围内放大RF信号,并且功率饱和电平低于功率范围宽度的最大值 披露。 一个或多个峰值放大器与载波放大器并联连接,其中每个峰值放大器被偏置以在载波放大器接近饱和之后依次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,并且用于从载波放大器和多个峰值放大器接收放大的输出信号的输出包括电阻负载R / 2。 分路输入信号通过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。 当运行低于饱和时,当载波放大器将电流传递到负载时,载波放大器将功率输送到2R的负载,负载是最大功率电流的一半,放大器饱和。 信号分配器可以在载波和一个或多个峰值放大器之间平均地分离输入信号功率,或者输入信号可以与载波放大器不相等地分离,其中每个峰值放大器接收的输入功率较小,反之亦然。
    • 3. 发明申请
    • N-WAY RF POWER AMPLIFIER CIRCUIT WITH INCREASED BACK-OFF CAPABILITY AND POWER ADDED EFFICIENCY USING UNEQUAL INPUT POWER DIVISION
    • N路RF功率放大器电路,使用不相等的输入功率分区,提高后退能力和功率增强效率
    • WO2004100215A3
    • 2004-12-23
    • PCT/US2004011057
    • 2004-04-09
    • CREE MICROWAVE INCPENGELLY RAYMOND SYDNEYWOOD SIMON MAURICE
    • PENGELLY RAYMOND SYDNEYWOOD SIMON MAURICE
    • H03F3/68B65D51/16B65D51/24H01L20060101H03F1/02H03F1/07H03F1/32H03F3/24H03F3/60
    • H03F1/0288H03F1/0277H03F1/32H03F3/602H03F2200/451H03F2201/3203
    • 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.
    • 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。 一个或多个峰值放大器与载波放大器并联连接,其中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,当载波放大器向负载提供电流时,载波放大器为2R负载提供电源,这是最大功率下电流的一半,且放大器饱和。 信号分配器可以在载波和一个或多个峰值放大器之间均等地分配输入信号功率,或者输入信号可以不均匀地分配,其中载波放大器接收比每个峰值放大器更少的输入功率,反之亦然。
    • 4. 发明申请
    • N-WAY RF POWER AMPLIFIER CIRCUIT WITH INCREASED BACK-OFF CAPABILITY AND POWER ADDED EFFICIENCY USING SELECTED PHASE LENGTHS AND OUTPUT IMPEDANCES
    • N-WAY射频功率放大器电路具有提高的备用能力和使用选择的相位长度和输出阻抗的功率增加效率
    • WO2004100358A1
    • 2004-11-18
    • PCT/US2004/011457
    • 2004-04-08
    • CREE MICROWAVE, INC.PENGELLY, Raymond, SydneyWOOD, Simon, Maurice
    • PENGELLY, Raymond, SydneyWOOD, Simon, Maurice
    • H03F3/68
    • H03F1/0288H03F1/0277H03F1/32H03F3/602H03F2201/3203
    • 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.
    • 一种RF功率放大器电路,用于在提高效率的宽范围的功率范围内放大RF信号,包括载波放大器,用于在第一功率范围内放大RF信号,并且功率饱和电平低于功率范围宽度的最大值 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依次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,并且用于从载波放大器和多个峰值放大器接收放大的输出信号的输出包括电阻负载R / 2。 分路输入信号通过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。 当工作在饱和度以下时,载波放大器将功率输送到2R的负载,并且载波放大器将电流传递到负载,当放大器饱和时,其为最大功率时的电流的一半。 在一个实施例中,输出具有阻抗Z,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,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,以减少输出阻抗的电抗。