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公开(公告)号：US4162412A
公开(公告)日：1979-07-24
申请号：US838656
申请日：1977-10-03
CPC分类号： H03G11/002 , H03G11/006
摘要： A microwave power limiter for generating an output RF signal of substantially constant power level in response to an input RF signal of varying power level comprises a single gate field effect transistor (FET). The FET is biased such that the RF power output variation is small compared to the input power variation in the saturation region. A number of FET cascaded stages may be utilized to reduce this power output variation. A small signal amplifier including a number of FET cascaded stages may be employed in the limiter to increase the power level to that gain or drive level compatible with the saturated FET stages.
摘要翻译： 微波功率限制器，用于响应于变化功率电平的输入RF信号而产生基本上恒定的功率电平的输出RF信号包括单栅极场效应晶体管（FET）。 FET被偏压，使得RF功率输出变化与饱和区域中的输入功率变化相比较小。 可以使用多个FET级联级来减小该功率输出变化。 可以在限幅器中采用包括多个FET级联级的小信号放大器，以将功率电平增加到与饱和FET级兼容的增益或驱动电平。
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公开(公告)号：US4085377A
公开(公告)日：1978-04-18
申请号：US722829
申请日：1976-09-13
申请人： Zygmond Turski , Arye Rosen
发明人： Zygmond Turski , Arye Rosen
CPC分类号： H03D9/04
摘要： A microwave frequency discriminator using a one port active device amplifier including a circulator for coupling an input RF signal of substantially constant power level into the amplifier and an output RF signal out from the amplifier. The discriminator further comprises input and output matching networks connected to the circulator and a detector for generating a D.C. signal as a function of the incoming signal frequency. The input and output impedance matching networks are formed to provide selected impedance conditions to the amplifier such that the power-frequency response of the amplifier varies substantially linearly approximating a frequency discriminator characteristic throughout a predetermined frequency bandwidth.
摘要翻译： 一种使用单端口有源器件放大器的微波鉴频器，其包括用于将基本上恒定功率电平的输入RF信号耦合到放大器的环行器和从放大器输出的输出RF信号。 鉴别器还包括连接到环行器的输入和输出匹配网络以及用于根据输入信号频率产生直流信号的检测器。 形成输入和输出阻抗匹配网络以向放大器提供所选择的阻抗条件，使得放大器的功率 - 频率响应在整个预定频率带宽内基本上线性近似于鉴频器特性。
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公开(公告)号：US4079325A
公开(公告)日：1978-03-14
申请号：US714356
申请日：1976-08-16
摘要： A microwave frequency discriminator including a multi-stage limiter-amplifier and a detector in an environment of a wide band RF signal of varying power level. The limiter-amplifier comprises a plurality of cascaded saturated amplifiers including an unsaturated output-stage amplifier. The response of the unsaturated output stage amplifier is such that the RF power varies substantially linearly with the input frequency over a predetermined bandwidth. The detector converts the RF signal to a linear dc signal.
摘要翻译： 一种微波鉴频器，包括在具有变化的功率电平的宽频带RF信号的环境中的多级限幅放大器和检测器。 限幅放大器包括多个级联饱和放大器，包括不饱和输出级放大器。 不饱和输出级放大器的响应使得RF功率随预定带宽上的输入频率基本线性地变化。 检测器将RF信号转换成线性直流信号。
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4.发明授权Microwave bulk acoustic delay device having two transducers on the same surface and method of making same 失效具有相同表面上的两个换能器的微波体声声延迟装置及其制造方法
公开(公告)号：US3996535A
公开(公告)日：1976-12-07
申请号：US594236
申请日：1975-07-09
申请人： Zygmond Turski
发明人： Zygmond Turski
摘要： A wafer of lithium niobate metallized on both major surfaces is bonded to a magnesium aluminate spinel bulk acoustic delay line. The lithium niobate layer is divided into two separate electrically and mechanically isolated transducers using ion beam milling. The bulk acoustic delay line has a surface arranged to reflect a propagating acoustic wave generated by one of the divided transducers to the other of the transducers, the one transducer serving as an input and the other as an output. The acoustic delay line is suitable for broad band operation at microwave frequencies with at least 50 db isolation between the two ports.
摘要翻译： 在两个主表面上金属化的铌酸锂晶片被结合到铝酸镁尖晶石体声延迟线。 使用离子束铣削将铌酸锂层分成两个单独的电和机械隔离的换能器。 体声声延迟线具有布置成将由分离换能器中的一个产生的传播声波反射到另一个换能器的表面，一个换能器用作输入，另一个用作输出。 声学延迟线适用于微波频段的宽带操作，两个端口之间至少有50db隔离。
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公开(公告)号：US4053842A
公开(公告)日：1977-10-11
申请号：US722585
申请日：1976-09-13
CPC分类号： H03D9/04
摘要： A microwave frequency discriminator comprising a field effect transistor (FET) amplifier, input and output impedance matching networks and a detector. The FET is biased to generate an output RF signal within a predetermined frequency bandwidth in response to an input RF signal of substantially constant power level. The input and output impedance matching networks are arranged to provide the impedance conditions to shape and linearize the power-frequency response of the FET amplifier throughout the predetermined frequency bandwidth such that the frequency response approximates the linear power-frequency characteristic of a frequency discriminator.
摘要翻译： 一种包括场效应晶体管（FET）放大器，输入和输出阻抗匹配网络和检测器的微波鉴频器。 响应于基本上恒定的功率电平的输入RF信号，FET被偏压以在预定频率带宽内产生输出RF信号。 输入和输出阻抗匹配网络被布置成提供阻抗条件以在整个预定频率带宽内对FET放大器的功率频率响应进行形状化和线性化，使得频率响应接近于频率鉴别器的线性功率频率特性。
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6.发明授权Method and apparatus for measuring true transmitted power using a broadband dual directional coupler 有权使用宽带双向耦合器测量真实发射功率的方法和装置公开(公告)号：US06600307B2
公开(公告)日：2003-07-29
申请号：US09742768
申请日：2000-12-21
申请人： Zygmond Turski , Bernard Dov Geller
发明人： Zygmond Turski , Bernard Dov Geller
IPC分类号： G01R2502
摘要： A dual-directional coupler for measuring true RF power apparent at a radiating element. Incident and reflected power are detected by a pair of detectors. The difference between the two detected voltages is amplified by a differential amplifier to generate a voltage proportional to the true transmitted power.
摘要翻译： 用于在辐射元件处测量真实RF功率的双向耦合器。 入射和反射功率由一对检测器检测。 两个检测电压之间的差异由差分放大器放大，以产生与真实发射功率成比例的电压。
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公开(公告)号：US3959747A
公开(公告)日：1976-05-25
申请号：US573390
申请日：1975-04-30
CPC分类号： H03H9/30 , H01L2224/85205 , H01L2924/01078 , H01L2924/01079 , H01L2924/01327 , Y10T29/42
摘要： A body of lithium niobate coated with a first thin layer of magnesium and a second conductive metal layer on the magnesium layer permits subsequent ultrasonic bonding of a wire to the second layer without problems of delamination.
摘要翻译： 在镁层上涂覆有镁的第一薄层和第二导电金属层的铌酸锂体允许随后将电线超声波接合到第二层而没有分层的问题。
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