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公开(公告)号：US3675145A
公开(公告)日：1972-07-04
申请号：US3675145D
申请日：1971-03-22
CPC分类号： H01P1/213 , H03F1/3223 , H03F1/38 , H03F1/565 , H03F3/211 , H03F3/68 , H03F2200/198 , H03F2200/537 , H03H11/36 , H04B3/00 , H04B3/36
摘要： This application describes an arrangement for matching the output impedance of an amplifier to its load. The amplifier comprises two active stages having mutually inverse output impedances whose respective magnitudes are, preferably, at least an order of magnitude greater than and at least an order of magnitude less than the impedance of the external load circuit to which the amplifier is connected. The lower output impedance stage is connected to a first load impedance through one winding of a two-winding transformer. The higher output impedance stage is connected to ground through the other transformer winding. A second, impedance-matching load is connected in shunt with either one of the two transformer windings. By controlling the relative amplitude and phase of the signals derived from the two stages, the signal current can be coupled to either one or the other of the two load impedances, or to both. Arrangements for increasing the amplifier gain and obtaining a match at the amplifier input are also described.
摘要翻译： 该应用描述了用于将放大器的输出阻抗与其负载进行匹配的布置。 放大器包括具有相互反向输出阻抗的两个有源级，其相应的幅度优选地比放大器连接到的外部负载电路的阻抗大至少一个数量级。 较低的输出阻抗级通过双绕组变压器的一个绕组连接到第一个负载阻抗。 较高的输出阻抗级通过另一个变压器绕组连接到地。 第二个阻抗匹配负载与两个变压器绕组中的任一个并联连接。 通过控制从两级导出的信号的相对幅度和相位，信号电流可以耦合到两个负载阻抗中的一个或另一个，或两者。
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公开(公告)号：US3863168A
公开(公告)日：1975-01-28
申请号：US33153573
申请日：1973-02-12
摘要： This application discloses the manner in which a constant voltage source and a phase coherent constant current source can be connected to a common load, and how the power distribution between the two sources can be controlled by varying the ratio of the two output signals. The sources can be phase locked oscillators, or two amplifying stages coupling a common signal source to a common output load.
摘要翻译： 本申请公开了将恒定电压源和相位恒定电流源连接到公共负载的方式，以及如何通过改变两个输出信号的比率来控制两个源之间的功率分配。 源可以是锁相振荡器，或两个放大级将公共信号源耦合到公共输出负载。
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公开(公告)号：US3700832A
公开(公告)日：1972-10-24
申请号：US3700832D
申请日：1971-08-19
摘要： This application describes an n-port circulator comprising n identical circuit units arranged in a closed loop configuration. Each unit is a three terminal circuit including two transistors and two equal, impedance-matching impedances. The first terminal is connected to the base of the first transistor, and to the emitter of the second transistor through one of the impedances. The second terminal is connected to the collector of the second transistor, and to the emitter of the first transistor through the other impedance. The third terminal is connected to the collector of the first transistor, while the base of the second transistor is grounded. The units are interconnected such that the third terminal of each is coupled to the first terminal of the next adjacent unit in the loop. The second terminals of the units constitute the ports of the circulator.
摘要翻译： 本申请描述了一种n端口循环器，其包括以闭环配置布置的n个相同的电路单元。 每个单元是包括两个晶体管和两个相等的阻抗匹配阻抗的三端电路。 第一端子通过一个阻抗连接到第一晶体管的基极，并连接到第二晶体管的发射极。 第二端子通过另一阻抗连接到第二晶体管的集电极，并连接到第一晶体管的发射极。 第三端子连接到第一晶体管的集电极，而第二晶体管的基极接地。 这些单元互连，使得每个单元的第三端子耦合到环路中的下一相邻单元的第一端子。 单元的第二个端子构成循环器的端口。
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公开(公告)号：US3676790A
公开(公告)日：1972-07-11
申请号：US3676790D
申请日：1971-06-03
CPC分类号： H03F1/34 , H03F1/3211 , H03F2200/372
摘要： The signal at the output of a signal amplifier is compared, in a differential amplifier, with the input signal to the signal amplifier. Any difference between these two voltages causes an error-correcting voltage to be generated across an impedance in series between the signal source and the signal amplifier input port. This error-correcting voltage is added to the input signal in phase to cancel the output signal error. By using a differential amplifier to produce the error signal, there is no feedback to the signal source, resulting in a high degree of stability.
摘要翻译： 信号放大器的输出端的信号在差分放大器中与输入信号与信号放大器进行比较。 这两个电压之间的任何差异导致在信号源和信号放大器输入端口之间串联的阻抗产生纠错电压。 该误差校正电压同相加到输入信号上以消除输出信号误差。 通过使用差分放大器产生误差信号，没有信号源的反馈，导致高度的稳定性。
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公开(公告)号：US3667065A
公开(公告)日：1972-05-30
申请号：US3667065D
申请日：1970-09-04
CPC分类号： H03F1/3229 , H03H11/1217 , H04B3/06 , H04J1/12
摘要： Frequency-shaping of the gain characteristic of a feed-forward, error-corrected amplifier using main and error amplifiers having essentially flat, or frequency-independent gain characteristics, is achieved by tapering the power division characteristics of: the input coupler, which extracts a reference signal component from the input signal; the sampling coupler, which compares the output from the main amplifier with the reference signal to form an error signal; and the error injection coupler, which injects the error signal into the main signal path. In a second embodiment of the invention, the band-shaping burden is shared between the amplifiers and the couplers.
摘要翻译： 通过使以下功率分配特性逐渐减小，使得使用具有基本上平坦或频率独立的增益特性的主和误差放大器的前馈误差校正放大器的增益特性的频率整形实现：输入耦合器，其提取 来自输入信号的参考信号分量; 采样耦合器，将主放大器的输出与参考信号进行比较，形成误差信号; 以及将误差信号注入主信号路径的误差注入耦合器。 在本发明的第二实施例中，频带整形负担在放大器和耦合器之间共享。
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公开(公告)号：US3919660A
公开(公告)日：1975-11-11
申请号：US20486571
申请日：1971-12-06
IPC分类号： H01P1/213 , H03F1/32 , H03F1/38 , H03F1/56 , H03F3/68 , H03H11/36 , H04B3/00 , H04B3/36 , H03F1/00
CPC分类号： H01P1/213 , H03F1/3223 , H03F1/38 , H03F1/565 , H03F3/211 , H03F3/68 , H03F2200/198 , H03F2200/537 , H03H11/36 , H04B3/00 , H04B3/36
摘要： A variety of amplifiers are described, each of which comprises two active stages having equal coefficients of transmission, and mutually inverse input and output terminal impedances whose respective magnitudes are at least an order of magnitude different than that of the external circuits connected thereto. Input and output transformer networks couple the two stages to a common signal source and to a common output load.
摘要翻译： 描述了各种放大器，每个放大器包括具有相等的传输系数的两个有源级，以及相互反向的输入和输出端子阻抗，其相应的幅度与连接到其的外部电路的幅度至少一个数量级。 输入和输出变压器网络将两个阶段耦合到公共信号源和公共输出负载。
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公开(公告)号：US3694765A
公开(公告)日：1972-09-26
申请号：US3694765D
申请日：1971-02-08
IPC分类号： H01P1/213 , H03F1/32 , H03F1/38 , H03F1/56 , H03F3/68 , H03H11/36 , H04B3/00 , H04B3/36 , H03F1/00
CPC分类号： H01P1/213 , H03F1/3223 , H03F1/38 , H03F1/565 , H03F3/211 , H03F3/68 , H03F2200/198 , H03F2200/537 , H03H11/36 , H04B3/00 , H04B3/36
摘要： This application describes a coupling circuit for coupling one or more signal sources to a common load without disturbing any of the coupled circuits. Each coupling circuit comprises a pair of amplifiers and a two-winding transformer. One amplifier, whose output impedance is much less than the load impedance, is connected to the transformer secondary winding. The other amplifier, whose output impedance is much larger than the load impedance, is connected to a center-tap on the transformer primary winding. The load and a matching impedance are connected to opposite ends of the primary winding. When more than one source is to be coupled to the load, the transformer primary windings are connected in series. A similar arrangement can be used at the input end of each amplifier. The suggested network can be used as the error injection network of a feed-forward amplifier.
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