公开(公告)号：US11831063B2

公开(公告)日：2023-11-28

申请号：US17674572

申请日：2022-02-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasushi Koyama ,  Yoshinori Tateishi

IPC: H01Q9/04 ,  H03B7/08 ,  H03B7/14 ,  H01Q9/16 ,  H01Q21/06 ,  H03B7/12 ,  G01R31/311 ,  H01Q1/38 ,  G01R31/28 ,  H03B5/12 ,  H03L7/099 ,  H03L7/10 ,  H03L7/193

CPC classification number: H01Q9/0414 ,  G01R31/2831 ,  G01R31/311 ,  H01Q1/38 ,  H01Q9/16 ,  H01Q21/065 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03B7/08 ,  H03B7/12 ,  H03B7/146 ,  H03L7/099 ,  H03L7/101 ,  H03L7/103 ,  H03L7/193 ,  H03B2200/0084

Abstract: An element includes a coupling line in which a first conductor layer, a dielectric layer, and a second conductor layer are stacked in this order, and which is connected to the second conductor layer in order to mutually synchronize a plurality of antennas at a frequency of a terahertz wave; and a bias line connecting a power supply for supplying a bias signal to a semiconductor layer and the second conductor layer. A wiring layer in which the coupling line is formed and a wiring layer in which the bias line is formed are different layers. The bias line is disposed in a layer between the first conductor layer and the second conductor layer.

公开(公告)号：US20230353092A1

公开(公告)日：2023-11-02

申请号：US17663215

申请日：2022-05-13

Applicant: Shaoxing Yuanfang Semiconductor Co., Ltd. ,  Spirit Semiconductor Limited

Inventor： Georgios Bilionis ,  Sebastian Diebold

IPC: H03B5/12

CPC classification number: H03B5/1293 ,  H03B5/1265 ,  H03B5/1243 ,  H03B2201/0208

Abstract: An aspect of the present disclosure improves the linearity of a semiconductor switch. In an embodiment, a capacitor providing variable capacitance is provided between an input terminal and an output terminal of the switch, which results in such a benefit. According to another aspect, the capacitor is realized by multiple varactors connected in series between the input terminal and the output terminal. A biasing network is designed to cause a respective desired voltage to be applied across each varactor for obtaining the variable capacitance.

公开(公告)号：US11677354B2

公开(公告)日：2023-06-13

申请号：US17095117

申请日：2020-11-11

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Jan Plojhar ,  Lucas Emiel Elie Vander Voorde ,  Pavel Mares

IPC: H03B5/12 ,  H03F3/45 ,  H03K5/00 ,  H03L7/00

CPC classification number: H03B5/1237 ,  H03B5/129 ,  H03B5/1271 ,  H03B5/1293 ,  H03F3/45475 ,  H03K5/00006 ,  H03L7/00

Abstract: Circuits and processes for locking a voltage-controlled oscillator (VCO) at a high frequency signal are described. A circuit may include an adjustable current converter (ACC), coupled at an input terminal to a power source, operable to output a control signal (VC) at an output terminal. A first switch may be coupled to the ACC and to the VCO. The VCO, when in an “ON” state, receives the control signal and outputs a high frequency signal (VHF). A digital filter may be coupled to the VCO and operable to receive the VHF. Based on the VHF, the digital filter generates a data signal having a data value. The circuit may also include a digital-to-analog converter (DAC) operable to receive the data signal and, based on the data value, output an adjustment signal to the ACC. The ACC may adjust the control signal based on the adjustment signal received from the DAC.

公开(公告)号：US09742352B2

公开(公告)日：2017-08-22

申请号：US15340558

申请日：2016-11-01

Applicant: National Chi Nan University

Inventor： Yo-Sheng Lin ,  Wei-Cheng Wen

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/124 ,  H03B5/1243 ,  H03B5/1293 ,  H03B2200/0034

Abstract: A voltage-controlled oscillator includes two first inductors having a common node, two varactors respectively coupled to the first inductors, a cross-connected pair coupled to the first inductors, and a reversely tunable source degeneration module coupled to the cross-connected pair. The reversely tunable source degeneration module cooperates with the cross-connected pair to form a negative equivalent capacitance seen into the cross-connected pair from the common node of cross-connected pair and each first inductor. An oscillatory signal pair is provided at the first terminals of the first and second transistors.

公开(公告)号：US09660578B2

公开(公告)日：2017-05-23

申请号：US14991043

申请日：2016-01-08

Applicant: FREESCALE SEMICONDUCTOR, INC.

Inventor： Cristian Pavao-Moreira ,  Olivier Vincent Doare ,  Birama Goumballa ,  Didier Salle

IPC: H03B5/08 ,  H03B5/12 ,  H03L7/099 ,  H01G15/00

CPC classification number: H03B5/1265 ,  H01G15/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1293 ,  H03L7/099

Abstract: An electronic device comprises a controllable capacitor bank and a capacitive divider arranged in parallel with the capacitor bank and configured to linearize the capacitor bank in a linearization frequency range of a frequency characteristic of the electronic device. The capacitive divider comprises a series arrangement of a first series capacitance, and a main capacitor bank. A control circuit coupled to one or more control inputs of the capacitive divider and controllable capacitor bank is configured to modify the equivalent capacitance of the capacitive divider and the controllable capacitor bank for providing capacitance steps, each capacitance step being variable over frequency such that for each step a frequency change Δf of the frequency characteristic is maintained constant in the linearization frequency range.

公开(公告)号：US20170093409A1

公开(公告)日：2017-03-30

申请号：US15234743

申请日：2016-08-11

Applicant: MAXLINEAR ASIA SINGAPORE PTE LTD.

Inventor： Hormoz DJAHANSHAHI ,  Masoud GHOREISHI MADISEH

IPC: H03L7/099 ,  H03L7/091 ,  H03L3/00 ,  H03L7/089 ,  H03L7/093

CPC classification number: H03L7/099 ,  H03B1/00 ,  H03B5/04 ,  H03B5/08 ,  H03B5/1212 ,  H03B5/124 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03L1/026 ,  H03L7/087 ,  H03L7/113 ,  H03L7/18

Abstract: A system and method for calibrating a Voltage-Controlled Oscillator (VCO) having both fine-tuning control and coarse-tuning control. The VCO frequency can vary monotonically with changes in each of one or more operational conditions. The calibration method determines the coarse-tuning control setting for the VCO at system start-up. The method comprises generating frequency characterization data, generating a polynomial function from the characterization data, calculating the fine-tuning control voltage based on the polynomial function and a measurement of the operational conditions, and sweeping through all the coarse-tuning control settings to determine the coarse-tuning control setting that generates the closest VCO frequency to a target frequency when using the calculated fine-tuning control voltage.

公开(公告)号：US09608647B1

公开(公告)日：2017-03-28

申请号：US15234743

申请日：2016-08-11

Applicant: MAXLINEAR ASIA SINGAPORE PTE LTD.

Inventor： Hormoz Djahanshahi ,  Masoud Ghoreishi Madiseh

IPC: H03L1/00 ,  H03L7/099 ,  H03L7/089 ,  H03L7/093 ,  H03L3/00 ,  H03L7/091 ,  H03B1/00 ,  H03L1/02 ,  H03B5/12 ,  H03B5/08

CPC classification number: H03L7/099 ,  H03B1/00 ,  H03B5/04 ,  H03B5/08 ,  H03B5/1212 ,  H03B5/124 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03L1/026 ,  H03L7/087 ,  H03L7/113 ,  H03L7/18

Abstract: A system and method for calibrating a Voltage-Controlled Oscillator (VCO) having both fine-tuning control and coarse-tuning control. The VCO frequency can vary monotonically with changes in each of one or more operational conditions. The calibration method determines the coarse-tuning control setting for the VCO at system start-up. The method comprises generating frequency characterization data, generating a polynomial function from the characterization data, calculating the fine-tuning control voltage based on the polynomial function and a measurement of the operational conditions, and sweeping through all the coarse-tuning control settings to determine the coarse-tuning control setting that generates the closest VCO frequency to a target frequency when using the calculated fine-tuning control voltage.

公开(公告)号：US20160099679A1

公开(公告)日：2016-04-07

申请号：US14874401

申请日：2015-10-03

Applicant: Masoud Babaie ,  Robert Bogdan Staszewski

Inventor： Masoud Babaie ,  Robert Bogdan Staszewski

IPC: H03B5/12

CPC classification number: H03B5/1212 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1281 ,  H03B5/1293 ,  H03B5/1296 ,  H03J2200/10 ,  H03L7/081 ,  H03L7/0991 ,  H03L7/1976

Abstract: A novel and useful RF oscillator suitable for use in applications requiring ultra-low voltage and power. The oscillator structure, employing alternating current source transistors, combines the benefits of low supply voltage operation of conventional NMOS cross-coupled oscillators together with high current efficiency of the complementary push-pull oscillators. In addition, the 1/f noise upconversion is also reduced. The oscillator can be incorporated within a wide range of circuit applications, including for example a conventional phase locked loop (PLL), all-digital phase-locked loop (ADPLL), wireline transceiver circuits and mobile devices.

Abstract translation: 一种新颖有用的RF振荡器，适用于需要超低电压和功率的应用。 采用交流电源晶体管的振荡器结构将常规NMOS交叉耦合振荡器的低电源电压工作的优点与互补推挽式振荡器的高电流效率相结合。 此外，1 / f噪声上变频也降低。 振荡器可以并入广泛的电路应用中，包括例如常规的锁相环（PLL），全数字锁相环（ADPLL），有线收发器电路和移动设备。

公开(公告)号：US08169270B2

公开(公告)日：2012-05-01

申请号：US12437462

申请日：2009-05-07

Applicant: Yi Zeng ,  Tzu-wang Pan ,  I-Hsiang Lin

Inventor： Yi Zeng ,  Tzu-wang Pan ,  I-Hsiang Lin

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1293

Abstract: A VCO (for example, in an FM receiver) includes an LC resonant tank. The LC resonant tank includes a coarse tuning capacitor bank and a fine tuning capacitor bank. The coarse tuning capacitor bank contains a plurality of digitally controlled coarse tuning capacitor elements, each providing a first capacitance value when active. The fine tuning capacitor bank contains a plurality of digitally controlled fine tuning capacitor elements, each providing a second capacitance value when active. To address the practical problem of capacitor mismatch, capacitance overlap throughout the VCO tuning range is created by selecting the first and second capacitance values such that the capacitance value of the fine capacitor bank is greater than the first capacitance value when all of the digitally controlled fine tuning capacitor elements of the fine capacitor bank are active.

Abstract translation: VCO（例如，在FM接收机中）包括LC谐振回路。 LC谐振槽包括一个粗调谐电容器组和一个微调电容器组。 粗调谐电容器组包含多个数字控制的粗调电容器元件，每个主调制电容器元件在有源时提供第一电容值。 微调电容器组包含多个数字控制的微调电容器元件，每个微调电容器元件在有源时提供第二电容值。 为了解决电容器失配的实际问题，通过选择第一和第二电容值来创建整个VCO调谐范围内的电容重叠，使得当全部数字控制的精细时，精细电容器组的电容值大于第一电容值 精细电容器组的调谐电容器元件是有效的。

公开(公告)号：US20110128080A1

公开(公告)日：2011-06-02

申请号：US12997102

申请日：2008-06-26

Applicant: Peter Wennekers ,  Hao Li ,  Yi Yin

Inventor： Peter Wennekers ,  Hao Li ,  Yi Yin

IPC: H03L7/00

CPC classification number: H03B5/04 ,  H03B5/1218 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1293 ,  H03L1/023 ,  H03L7/099 ,  H03L7/18

Abstract: A voltage controlled oscillator circuit comprises a VCO resonator circuit having a first plurality of varactors for varying a frequency of the VCO resonator circuit the VCO resonator circuit being symmetrical with respect to VCO circuit ground and providing a signal having a frequency, the frequency depending on a tuning voltage applied to the first plurality of varactors, and a second plurality of varactors for compensating a drift of the frequency depending on a compensation voltage, a temperature sensor circuit sensing an ambient temperature of the VCO resonator circuit and providing a temperature dependent signal, and a temperature compensation circuit providing the compensation voltage depending on the temperature dependent signal. Furthermore, a phase locked loop (PLL) circuit, an automotive radar device and a method for compensating a frequency drift of a VCO resonator circuit are presented.

Abstract translation: 压控振荡器电路包括具有第一多个变容二极管的VCO谐振电路，所述变容二极管用于改变所述VCO谐振器电路的频率，所述VCO谐振器电路相对于VCO电路接地是对称的，并提供具有频率的信号，所述频率取决于 施加到第一组多个变容二极管的调谐电压，以及第二组多个变容二极管，用于根据补偿电压补偿频率的漂移;感测VCO谐振电路的环境温度并提供与温度相关的信号的温度传感器电路;以及 温度补偿电路，其根据温度依赖信号提供补偿电压。 此外，提出了锁相环（PLL）电路，汽车雷达装置和用于补偿VCO谐振电路的频率漂移的方法。