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公开(公告)号：US08198950B2
公开(公告)日：2012-06-12
申请号：US13063127
申请日：2009-10-01
CPC分类号： H03F1/0227 , H03F1/0244 , H03F1/32 , H03F3/24 , H03F2200/102 , H03F2200/324 , H03F2200/351 , H03F2200/511
摘要： A power amplifier that amplifies an RF modulation signal containing an amplitude modulation component and a phase modulation component, including a polar modulator that outputs an amplitude component signal that is the amplitude modulation component of the RF modulation signal, a direct current power supply that outputs a direct current voltage, a pulse modulator that pulse-modulates the amplitude component signal, a pulse amplification circuit that amplifies a pulse modulation signal, a combining circuit that adds a direct current voltage that is outputted from the direct current power supply to an output signal of the pulse amplification circuit, a low pass filter that smoothens an output signal of the combining circuit, and an RF amplifier that not only amplifies the RF modulation signal, but also amplitude-modulates the amplified signal with an output signal of the low pass filter and outputs the resultant signal.
摘要翻译： 一种放大包含振幅调制分量和相位调制分量的RF调制信号的功率放大器，包括输出作为RF调制信号的幅度调制分量的振幅成分信号的极性调制器，输出 脉冲调制振幅分量信号的脉冲调制器，放大脉冲调制信号的脉冲放大电路，将从直流电源输出的直流电压与从直流电源输出的直流电压相加的合成电路， 脉冲放大电路，使组合电路的输出信号平滑化的低通滤波器，以及RF放大器，其不仅放大RF调制信号，而且还利用低通滤波器的输出信号来对放大的信号进行幅度调制， 输出结果信号。
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公开(公告)号：US08125288B2
公开(公告)日：2012-02-28
申请号：US11737519
申请日：2007-04-19
申请人： Robert John Castle , John Waters
发明人： Robert John Castle , John Waters
摘要： A method for modulating a signal transmitted by a first device to a second device which is energised by the signal, wherein the first device is further arranged to amplitude modulate the signal so as to transmit data thereon, the method further comprising phase modulating the signal.
摘要翻译： 一种用于将由第一设备发送的信号调制到由信号激励的第二设备的方法，其中所述第一设备还被布置为对所述信号进行幅度调制以在其上传输数据，所述方法还包括对所述信号进行相位调制。
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公开(公告)号：US07427903B2
公开(公告)日：2008-09-23
申请号：US11284514
申请日：2005-11-22
申请人： Giuseppe Li Puma
发明人： Giuseppe Li Puma
IPC分类号： H03C3/38
CPC分类号： H04L27/361 , H03C5/00 , H03F3/24 , H03L7/06
摘要： A polar modulator has a low AM-AM and AM-PM distortion comprises a phase locked loop. The phase locked loop is designed for outputting a high-frequency signal with a frequency derived from a phase modulation signal at an actuating input of the phase locked loop. A filter device, for suppressing a DC signal component, is coupled to an output of the phase locked loop. Furthermore, provision is made of a controllable voltage source with a control input suitable for feeding in an amplitude modulation signal. A push-pull amplifier is connected by an input to the filter device. It comprises two feedback amplifier transistors connected in series, which are connected to a voltage output of the controllable voltage source for supply purposes. Control terminals of the amplifier transistors are connected to the input and, via a load, to an output of the push-pull amplifier.
摘要翻译： 极性调制器具有低AM-AM和AM-PM失真，包括锁相环。 锁相环被设计用于在锁相环的致动输入处输出具有从相位调制信号导出的频率的高频信号。 用于抑制DC信号分量的滤波器装置耦合到锁相环的输出端。 此外，提供具有适于馈送幅度调制信号的控制输入的可控电压源。 推挽放大器通过输入连接到滤波器装置。 它包括串联连接的两个反馈放大器晶体管，它们连接到可控电压源的电压输出端用于供电目的。 放大器晶体管的控制端子连接到输入端并通过负载连接到推挽放大器的输出端。
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公开(公告)号：US07412213B1
公开(公告)日：2008-08-12
申请号：US11538396
申请日：2006-10-03
申请人： John B. Groe , Carl Thomas Hardin , Mahbuba Sheba
发明人： John B. Groe , Carl Thomas Hardin , Mahbuba Sheba
CPC分类号： H03G7/06 , H03C5/00 , H03F1/02 , H03F3/24 , H03G3/3042 , H04B2001/0408 , H04B2001/045 , H04L27/361
摘要： Envelope limiting for a polar modulator. A system is provided that intelligently compresses the amplitude modulation in a polar modulator so that it can be implemented with a single-stage variable gain amplifier. Limiting the amplitude modulation range on the low side prevents collapse of the transmit signal's time-varying envelope and eases circuit implementation. Limiting the amplitude modulation range on the high side reduces the peak-to-average ratio of the waveform and thereby improves the efficiency of the radio transmitter.
摘要翻译： 极性调制器的信封限制。 提供了一种智能地压缩极性调制器中的幅度调制的系统，使得其可以用单级可变增益放大器来实现。 限制低侧的幅度调制范围可以防止发射信号的时变包络的崩溃，并且简化电路实现。 限制高侧的幅度调制范围降低了波形的峰均比，从而提高了无线电发射机的效率。
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公开(公告)号：US4229715A
公开(公告)日：1980-10-21
申请号：US969775
申请日：1978-12-15
申请人： Paul S. Henry
发明人： Paul S. Henry
IPC分类号： H03C3/38
CPC分类号： H03C3/38
摘要： The present invention relates to a precision phase modulator wherein a carrier signal of constant amplitude and frequency and a modulating signal are applied to the two inputs of the first one of a cascade of linear suppressed-carrier amplitude modulators. Each subsequent modulator of the cascade arrangement concurrently modulates the output signal of the previous modulator of the cascade with the modulation signal. The input carrier signal and the output signal of each modulator of the cascade is tapped-off and weighted, the weighted carrier input and outputs of the even-numbered modulators and the weighted outputs of the odd-numbered modulators are separately added and are combined in quadrature to provide a phase modulated output signal.
摘要翻译： 本发明涉及一种精密相位调制器，其中恒定幅度和频率的载波信号和调制信号被施加到级联的线性抑制载波幅度调制器的第一个的两个输入端。 级联装置的每个随后的调制器同时用调制信号调制级联的先前调制器的输出信号。 级联的每个调制器的输入载波信号和输出信号被分接和加权，偶数编号的加权载波输入和输出以及奇数编号调制器的加权输出被分开加在一起 正交以提供相位调制输出信号。
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公开(公告)号：US4028641A
公开(公告)日：1977-06-07
申请号：US685407
申请日：1976-05-11
CPC分类号： H04L27/2071 , H03C3/40
摘要： The present invention relates to a linear phase modulator comprising two known Armstrong modulators connected in a balanced configuration to eliminate even-order nonlinearities in the output phase modulated signal. In addition, a preselected amount of in-phase carrier is added to the quadrature carrier normally added to the output of the suppressed-carrier modulator forming a part of each Armstrong modulator, the carriers being added to each modulator output, however, differing in phase from quadrature by equal and opposite amounts. By properly preselecting the amount of phase difference from quadrature of the added carriers, third-order nonlinearities can also be substantially eliminated after combining the outputs of the Armstrong modulators in a multiplier circuit.
摘要翻译： 线性相位调制器本发明涉及一种线性相位调制器，其包括以平衡配置连接的两个已知的阿姆斯壮调制器，以消除输出相位调制信号中的偶次非线性。 另外，预先选择量的同相载波被加到通常加到形成每个阿姆斯壮调制器的一部分的抑制载波调制器的输出的正交载波上，载波被加到每个调制器输出端，然而相位不同 从正交相等和相反的数量。 通过适当地预先选择相加载波正交的相位差，在乘法器电路中组合阿姆斯壮调制器的输出之后，也可以基本消除三阶非线性。
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公开(公告)号：US3505614A
公开(公告)日：1970-04-07
申请号：US3505614D
申请日：1966-11-30
申请人： AQUITAINE PETROLE
发明人： MARTHE LOUIS
CPC分类号： H03K7/06
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8.发明授权System for eliminating am to pm conversion in an fm system utilizing a plurality of equalizers 失效利用多个均衡器在fm系统中消除am到pm转换的系统
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公开(公告)号：US08736395B2
公开(公告)日：2014-05-27
申请号：US13332932
申请日：2011-12-21
CPC分类号： H03C5/00
摘要： The present invention relates to a polar modulation apparatus and method, in which a polar-modulated signal is generated based on separately processed phase modulation (PM) and amplitude modulation (AM) components of an input signal. An amplified polar modulated output signal is generated in accordance with the phase modulation and amplitude modulation components by using a differential power amplifier circuitry(30) and supplying an amplified phase modulation component to a differential input of the differential power amplifier circuitry(30). A bias input of the differential power amplifier circuitry(30) is controlled based on the amplitude modulation component, so as to modulate a common-mode current of the differential power amplifier circuitry(30). Thereby, a new concept of a polar modulator with static DC-DC converter and power and/or efficiency and/or linearity controlled output power amplifier can be achieved.
摘要翻译： 本发明涉及极化调制装置和方法，其中基于输入信号的分别处理的相位调制（PM）和调幅（AM）分量产生极调调制信号。 通过使用差分功率放大器电路（30）根据相位调制和幅度调制分量产生放大的极化调制输出信号，并将放大的相位调制分量提供给差分功率放大器电路（30）的差分输入。 基于幅度调制分量来控制差分功率放大器电路（30）的偏置输入，以便调制差分功率放大器电路（30）的共模电流。 因此，可以实现具有静态DC-DC转换器和功率和/或效率和/或线性控制的输出功率放大器的极性调制器的新概念。
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10.发明授权公开(公告)号：US08358719B2
公开(公告)日：2013-01-22
申请号：US11630319
申请日：2005-05-06
申请人： Joachim Danz
发明人： Joachim Danz
CPC分类号： H04L27/364 , H04L2027/0016
摘要： A method and device for the simultaneous compensation of several signal errors that occur in an IQ-modulator, using respective inverse correction signals, wherein the optimized signal magnitude of each correction signal is calculated by the determination of the effective signal error and by the subsequent iterative minimization of the effective signal error.
摘要翻译： 一种用于同时补偿在IQ调制器中发生的几个信号误差的方法和装置，其使用各自的反向校正信号，其中通过确定有效信号误差和随后的迭代计算每个校正信号的优化信号幅度 最小化有效信号误差。
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