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公开(公告)号：US12101112B1
公开(公告)日：2024-09-24
申请号：US17932707
申请日：2022-09-16
申请人： Marvell Asia Pte Ltd
发明人： Hui Zhao , Fei Lu , Yuxiang Sun , Zhendong Guo , Banglong Qian , Fang Lv
CPC分类号： H04B1/40 , H03B7/06 , H03B2200/0058
摘要： Transceiver circuitry for coupling a functional circuit to a transmission medium includes a transmit path for coupling between the functional circuit and the transmission medium, a receive path for coupling between the transmission medium and the functional circuit, and clock generation circuitry coupled to at least one of the transmit path and the receive path. The clock generation circuitry includes an oscillator having transconductance circuitry, a capacitance element coupled in parallel with the transconductance circuitry, a plurality of inductors coupled in parallel with the transconductance circuitry and the capacitance element, and with each other, and a current source coupled to the plurality of inductors. The capacitance element may be variable. An even number of inductors are arranged so that half of the inductors generate magnetic flux in a first direction, and half of the inductors generate magnetic flux in a second direction opposite to the first direction.
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公开(公告)号：US09998073B2
公开(公告)日：2018-06-12
申请号：US14791621
申请日：2015-07-06
CPC分类号： H03B7/06 , H03B5/1206 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/124 , H03B5/1243 , H03B5/1265 , H03B2200/004 , H03B2200/009 , H03B2201/0216 , H03J3/185 , H03J3/20 , H03J3/22 , H03J5/0218 , H03J2200/10 , H03L7/099 , H03L7/0991
摘要： A voltage controlled oscillator comprises a negative resistance, a first inductor, a fixed capacitor, and a frequency control component. The frequency control component comprises at least one varactor and at least a second inductor connected in series with the at least one varactor. A magnitude of an inductance of the second inductor is selected such that the frequency control component has an effective capacitance range larger than a capacitance range of the at least one varactor.
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公开(公告)号：US09209744B1
公开(公告)日：2015-12-08
申请号：US13765915
申请日：2013-02-13
发明人： Wayne M. Struble , Eoin Carey , Ronan G. Brady , Shane M. Collins
CPC分类号： H03B7/06 , H03B5/1206 , H03B5/1218 , H03B5/1231 , H03B5/124 , H03B5/1243 , H03B2200/0008
摘要： An apparatus having a substrate, a first die and a second die is disclosed. The substrate may include a circuit having an inductance. The first die may be (i) mounted on the substrate, (ii) connected to the circuit and (iii) configured to control a frequency of an oscillation of a signal in the circuit. The frequency is generally varied by adjusting a voltage in the first die. The second die may be (i) mounted on the substrate, (ii) connected to the circuit and (iii) configured to excite the signal. The apparatus generally forms a voltage-controlled oscillator.
摘要翻译： 公开了具有基板，第一模具和第二模具的装置。 衬底可以包括具有电感的电路。 第一管芯可以是（i）安装在衬底上，（ii）连接到电路，以及（iii）被配置为控制电路中的信号的振荡频率。 通常通过调节第一管芯中的电压来改变频率。 第二管芯可以（i）安装在衬底上，（ii）连接到电路，并且（iii）被配置为激发信号。 该装置通常形成压控振荡器。
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公开(公告)号：US09197221B2
公开(公告)日：2015-11-24
申请号：US14027635
申请日：2013-09-16
CPC分类号： H03L7/00 , H03B1/00 , H03B5/1215 , H03B5/1228 , H03B5/124 , H03B5/1296 , H03B7/06 , H03L7/099 , H04B1/10 , H04B1/26
摘要： A novel and useful oscillator topology demonstrating an improved phase noise performance that exploits the time-variant phase noise model with insights into the phase noise conversion mechanisms. The oscillator is based on enforcing a pseudo-square voltage waveform around an LC tank by increasing the third-harmonic of the fundamental oscillation voltage through an additional impedance peak. Alternatively, the oscillator is based on enforcing clipped oscillation waveform by increasing the second harmonic of the fundamental oscillation voltage through an additional impedance peak. This auxiliary impedance peak is realized by a transformer with moderately coupled resonating windings. As a result, the effective impulse sensitivity function (ISF) decreases thus reducing the oscillator's effective noise factor such that a significant improvement in the oscillator phase noise and power efficiency are achieved.
摘要翻译： 一种新颖有用的振荡器拓扑，展示了改进的相位噪声性能，利用了相位噪声转换机制的深入了解的时变相位噪声模型。 振荡器基于通过增加基波振荡电压的三次谐波通过附加的阻抗峰值来强制在LC槽周围的伪平方电压波形。 或者，振荡器基于通过附加阻抗峰值增加基波振荡电压的二次谐波来强制削波振荡波形。 该辅助阻抗峰值由具有中等耦合谐振绕组的变压器实现。 结果，有效的脉冲灵敏度函数（ISF）降低，从而减小了振荡器的有效噪声因子，从而实现了振荡器相位噪声和功率效率的显着提高。
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公开(公告)号：US20150303871A1
公开(公告)日：2015-10-22
申请号：US13569815
申请日：2012-08-08
申请人： Keith A. Jenkins , Yu-ming Lin
发明人： Keith A. Jenkins , Yu-ming Lin
IPC分类号： H03B5/12 , H01L29/16 , H01L29/786
CPC分类号： H03B5/1228 , H01L29/1606 , H01L29/78684 , H03B5/1203 , H03B7/06 , H03B2200/0084
摘要： An oscillator circuit includes a field effect transistor and a resonant circuit having a first terminal connected to the field effect transistor. The resonant circuit includes an inductance and a capacitance and has a second terminal for connecting to a radiator. The field effect transistor includes a gate electrode coupled to a source of gate voltage, a source electrode, a drain electrode and a graphene channel disposed between the source electrode and the drain electrode and electrically connected thereto. The graphene channel is disposed relative to the gate electrode for being biased by the gate electrode into a negative differential resistance region of operation. The oscillator circuit is capable of generating a continuous wave THz frequency signal, and is further capable of being enabled and disabled by the bias applied to the gate electrode.
摘要翻译： 振荡器电路包括场效应晶体管和具有连接到场效应晶体管的第一端子的谐振电路。 谐振电路包括电感和电容，并且具有用于连接到散热器的第二端子。 场效应晶体管包括耦合到栅极电压源的栅电极，源电极，漏电极和设置在源电极和漏电极之间并与其电连接的石墨烯通道。 石墨烯通道相对于栅电极设置，以便被栅电极偏压成负的差分电阻区域。 振荡器电路能够产生连续波THz频率信号，并且还能够通过施加到栅电极的偏置使能和禁止。
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公开(公告)号：US20150022190A1
公开(公告)日：2015-01-22
申请号：US13946247
申请日：2013-07-19
CPC分类号： H03B7/06 , G01D5/20 , G01K7/24 , G01K13/00 , H03B5/1203 , H03B5/1231 , H03B5/1256
摘要： Circuits for inductive position sensor are described.
摘要翻译： 描述感性位置传感器的电路。
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7.发明申请公开(公告)号：US20140080436A1
公开(公告)日：2014-03-20
申请号：US14027849
申请日：2013-09-16
CPC分类号： H03L7/00 , H03B1/00 , H03B5/1215 , H03B5/1228 , H03B5/124 , H03B5/1296 , H03B7/06 , H03L7/099 , H04B1/10 , H04B1/26
摘要： A novel and useful reconfigurable superheterodyne receiver that employs a 3rd order complex IQ charge-sharing band-pass filter (BPF) for image rejection and 1st order feedback based RF BPF for channel selection filtering. The operating RF input frequency of the receiver is 500 MHz to 1.2 GHz with varying high IF range of 33 to 80 MHz. The gain stages are inverter based gm stages and the total gain of the receiver is 35 dB and in-band IIP3 at mid gain is +10 dBm. The NF of the receiver is 6.7 dB which is acceptable for the receiver without an LNA. The architecture is highly reconfigurable and follows the technology scaling.
摘要翻译： 一种新颖有用的可重新配置的超外差接收机，其采用用于图像抑制的3阶复合IQ电荷共享带通滤波器（BPF）和用于信道选择滤波的基于1阶反馈的RF BPF。 接收机的工作RF输入频率为500 MHz至1.2 GHz，变化的高IF范围为33至80 MHz。 增益级是基于逆变器的gm级，接收机的总增益为35 dB，中间增益的带内IIP3为+10 dBm。 接收机的NF为6.7 dB，对于没有LNA的接收机，这是可以接受的。 该架构是高度可重构的，并遵循技术缩放。
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公开(公告)号：US5942952A
公开(公告)日：1999-08-24
申请号：US903081
申请日：1997-07-30
CPC分类号： H03B7/06 , H01L27/0605 , H01L29/882 , H03B2200/0062 , H03B2201/02 , H03B7/143
摘要： A VCO includes a transistor having a plurality of negative differential resistance devices coupled in series to the source terminal of the transistor, with each of the devices having a negative differential resistance operating region. Biasing circuits are coupled to the drain and gate terminals along with operating voltages which set the oscillator to operating in a negative differential resistance region of at least one of the negative differential resistance devices so that oscillations of a selected frequency are produced at an output terminal. The transistor, the plurality of N devices, the DC biasing circuits, and the operating voltages are connected so that the oscillator negative differential resistance operating region is greater than N times as wide as each of the device negative differential operating regions individually.
摘要翻译： VCO包括具有与晶体管的源极端子串联耦合的多个负差分电阻器件的晶体管，其中每个器件具有负的差分电阻工作区域。 偏置电路耦合到漏极和栅极端子以及操作电压，其工作电压将振荡器设置为在负差分电阻器件中的至少一个的负差分电阻区域中工作，使得在输出端子处产生选定频率的振荡。 连接晶体管，多个N器件，DC偏置电路和工作电压，使得振荡器负差分电阻工作区域分别大于每个器件负差分工作区域的N倍。
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公开(公告)号：US5821820A
公开(公告)日：1998-10-13
申请号：US950874
申请日：1997-08-15
申请人： James R. Snider , Glen O. Reeser
发明人： James R. Snider , Glen O. Reeser
CPC分类号： H03B5/1847 , H03B5/1209 , H03B5/1231 , H03B5/1243 , H03B2200/004 , H03B2200/0048 , H03B2200/0086 , H03B2201/0208 , H03B7/06
摘要： A voltage controlled oscillator operable on two widely separated frequency bands, such as 900 MHz and 1.8 GHz for example. The voltage controlled oscillator includes two negative resistance generators (32, 34) which share a common tunable tank circuit (26) and a common impedance matched combiner circuit (28) which provides the RF output (36). The VCO uses only one varactor (30) to tune both frequency bands. Separate negative resistance generators (32, 34) are used to provide optimum frequency selectivity within each frequency band.
摘要翻译： 压控振荡器可在两个广泛分离的频带上工作，例如900MHz和1.8GHz。 压控振荡器包括两个负电阻发生器（32,34），它们共用共同的可调谐振荡电路（26）和提供RF输出（36）的公共阻抗匹配组合器电路（28）。 VCO仅使用一个变容二极管（30）来调谐两个频带。 单独的负电阻发生器（32,34）用于在每个频带内提供最佳的频率选择性。
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10.发明授权Variable frequency microwave oscillator including digital phase shifter as tuning element 失效变频微波振荡器，包括数字移相器作为调谐元件
公开(公告)号：US5235293A
公开(公告)日：1993-08-10
申请号：US906322
申请日：1992-06-30
申请人： Gregory S. Mendolia
发明人： Gregory S. Mendolia
CPC分类号： H03B5/1852 , H03B5/1203 , H03B5/1228 , H03B5/1231 , H03B5/1237 , H03B5/1243 , H03B2200/0028 , H03B2200/004 , H03B2201/0208 , H03B2201/0291 , H03B7/06
摘要： A resonator (50) is connected in circuit with a negative resistance element (Q3,Q4) for producing oscillation at a resonant frequency of the resonator (50). A digital phase shifter (58) is incorporated into the resonant frequency in accordance with an applied digital signal. The resonator (50) can be connected in series with the negative resistance element (Q3), in which case the phase shifter (58) is connected as either a short-circuit or an open-circuit transmission line. Alternatively, the resonator (50) can be connected in parallel with the negative resistance element (Q4) in a feedback loop. An analog phase shifter (84) can also be provided in the resonator (50') for continuously variably setting the resonant frequency over the tuning increments of the digital phase shifter (58).
摘要翻译： 谐振器（50）与负电阻元件（Q3，Q4）电路连接，用于在谐振器（50）的谐振频率处产生振荡。 数字移相器（58）根据所应用的数字信号并入谐振频率。 谐振器（50）可以与负电阻元件（Q3）串联连接，在这种情况下，移相器（58）作为短路或开路传输线连接。 或者，谐振器（50）可以在反馈回路中与负电阻元件（Q4）并联连接。 也可以在谐振器（50'）中设置模拟移相器（84），用于连续地可变地设置谐振频率超过数字移相器（58）的调谐增量。
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