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    • 1. 发明申请
    • ANTENNA DEVICE
    • 天线设备
    • WO2009156805A1
    • 2009-12-30
    • PCT/IB2009/005430
    • 2009-04-30
    • TOYOTA JIDOSHA KABUSHIKI KAISHAOKADA, Hiroki
    • OKADA, Hiroki
    • H01Q9/04H01Q9/30H01Q23/00H03J3/18H04B1/18
    • H01Q9/0407H01Q9/0442H01Q9/30H01Q23/00H03J3/185H03K17/60H04B1/0458
    • An antenna device (1) includes an antenna unit (2), a power supply terminal (3) and a time constant circuit (4). The antenna unit (2) includes an antenna element (25) and a variable capacitance element (26) that is variable in capacitance in accordance with a voltage applied to the variable capacitance element (26), and resonates in such a manner that the antenna element (25) and the variable capacitance element (26) cooperate with each other. The power supply terminal (3) supplies the voltage applied to the variable capacitance element (26). The time constant circuit (4) gradually increases the voltage applied to the variable capacitance element (26) when a voltage applied to the power supply terminal (3) is changed from an off state to an on state.
    • 天线装置(1)包括天线单元(2),电源端子(3)和时间常数电路(4)。 天线单元(2)包括根据施加到可变电容元件(26)的电压可变电容的天线元件(25)和可变电容元件(26),并且以这样的方式共振,使得天线 元件(25)和可变电容元件(26)彼此配合。 电源端子(3)提供施加到可变电容元件(26)的电压。 当施加到电源端子(3)的电压从断开状态变为导通状态时,时间常数电路(4)逐渐增加施加到可变电容元件(26)的电压。
    • 2. 发明申请
    • MICRO-ELECTROMECHANICAL VARACTOR WITH ENHANCED TUNING RANGE
    • 具有增强调谐范围的微电子变压器
    • WO2004038916A3
    • 2004-08-12
    • PCT/EP0312399
    • 2003-09-18
    • IBMIBM FRANCE
    • CHINTHAKINDI ANIL KGROVES ROBERT ASTEIN KENNETH JSUBBANNA SESHADRIVOLANT RICHARD P
    • B81B7/00B81C1/00H01G5/011H01G5/18H03J3/18B81B3/00H01G5/16
    • H01G5/18B81B2201/01H01G5/011Y10S257/924
    • A three-dimensional micro-electromechanical (MEM) varactor is described wherein a movable beam (50) and fixed electrodes (51) are respectively fabricated on separate substrates coupled to each other. The movable beam with comb-drive electrodes are fabricated on the "chip side" while the fixed bottom electrode is fabricated on a separated substrate "carrier side". Upon fabrication of the device on both surfaces of the substrate, the chip side device is diced and "flipped over", aligned and joined to the "carrier" substrate to form the final device. Comb-drive (fins) electrodes are used for actuation while the motion of the electrode provides changes in capacitance. Due to the constant driving forces involved, a large capacitance tuning range can be obtained. The three dimensional aspect of the device avails large surface area. When large aspect ratio features are provided, a lower actuation voltage can be used. Upon fabrication, the MEMS device is completely encapsulated, requiring no additional packaging of the device. Further, since alignment and bonding can be done on a wafer scale (wafer scale MEMS packaging), an improved device yield can be obtained at a lower cost.
    • 描述了三维微机电(MEM)变容二极管,其中可移动光束(50)和固定电极(51)分别制造在彼此耦合的分离的基板上。 具有梳状驱动电极的可移动光束在“芯片侧”上制造,而固定底部电极制造在分离的基板“载体侧”上。 在衬底的两个表面上制造器件时,芯片侧器件被切割并“翻转”,对准并接合到“载体”衬底以形成最终器件。 梳状驱动(鳍)电极用于致动,同时电极的运动提供电容的变化。 由于所涉及的驱动力恒定,可以获得大的电容调谐范围。 该装置的三维方面具有较大的表面积。 当提供大的纵横比特征时,可以使用较低的致动电压。 在制造时,MEMS器件被完全封装,不需要额外的器件封装。 此外,由于可以在晶片规模(晶片级MEMS封装)上进行取向和接合,所以可以以更低的成本获得改进的器件产量。
    • 3. 发明申请
    • VARACTOR TUNING FOR A NARROW BAND FILTER
    • 用于窄带滤波器的变量调谐器
    • WO02013382A2
    • 2002-02-14
    • PCT/US2001/024792
    • 2001-08-07
    • H03J1/00H03J5/02H03J3/18
    • H03J1/0008H03J5/0245Y10S505/70Y10S505/866
    • A method and apparatus for providing dynamic and remote tuning of a cryo-cooled bandpass filter is disclosed. The device includes resonator element and a voltage sensitive element as part of the capacitance in a narrow band filter circuit. A varactor such as a GaAs varactor may be used. Alternatively, a capacitor having a voltage-sensitive dielectric such as SrTiO3 may be used. A computer may be connected to the varactor to provide for automated tuning. The voltage-sensitive capacitor may be integral with the resonator element. The invention provides for remote and dynamic tuning of a narrow bandpass filter while located within its sealed cryo-cooled environment.
    • 公开了一种用于提供低温冷却带通滤波器的动态和远程调谐的方法和装置。 该器件包括谐振元件和电压敏感元件作为窄带滤波器电路中电容的一部分。 可以使用诸如GaAs变容二极管的变容二极管。 或者,可以使用具有诸如SrTiO 3的电压敏感电介质的电容器。 计算机可以连接到变容二极管以提供自动调谐。 电压敏感电容器可以与谐振器元件成一体。 本发明提供了窄带通滤波器的远程和动态调谐,同时位于其密封的低温冷却环境中。
    • 4. 发明申请
    • RADIO FREQUENCY FEEDBACK AMPLIFIER CIRCUITS
    • 无线电频率反馈放大器电路
    • WO01089081A2
    • 2001-11-22
    • PCT/GB2001/002081
    • 2001-05-14
    • H03F1/08H03J3/18H03J3/20H03F
    • H03F1/083H03J3/185H03J3/20
    • A radio frequency feedback amplifier circuit of high linearity within the range of frequencies with which the circuit is to be used comprises a high gain amplifier incorporating a bandpass filter in the form of a single resonator which may be tunable, connected in the forward path of the amplifier stage and tuned so that its resonant frequency is at substantially the signal frequency, and a linear passive feedback circuit. A tuning arrangement (64, 65, 66, 67) comprises phase detection means (66), such as a Gilbert cell, for determining the phase shift across the resonator (62) and for adjusting a variable capacitance (64, 65) within the resonator (62) to tune the resonant circuit, in dependence on the frequency of the input to the circuit. Such an amplifier circuit may be used to achieve high linearity and stability at reasonable manufacturing cost, with much greater simplicity than can be achieved using other feedback techniques.
    • 在使用电路的频率范围内具有高线性度的射频反馈放大器电路包括高增益放大器,其包括单个谐振器形式的带通滤波器,该谐振器可调谐,连接在 放大器级并调谐使得其谐振频率基本上处于信号频率,以及线性无源反馈电路。 调谐装置(64,65,66,67)包括诸如吉尔伯特单元的相位检测装置(66),用于确定横跨谐振器(62)的相移并且用于调整在该谐振器(62)内的可变电容(64,65) 谐振器(62),以根据对电路的输入的频率来调谐谐振电路。 这种放大器电路可以用于在合理的制造成本下实现高线性度和稳定性,其比使用其它反馈技术可以实现的更简单。
    • 5. 发明申请
    • IMPEDANCE CIRCUIT AND METHOD FOR SIGNAL TRANSFORMATION
    • 阻抗电路和信号转换方法
    • WO2011054403A1
    • 2011-05-12
    • PCT/EP2009/064855
    • 2009-11-09
    • EPCOS AGBALM, Bart
    • BALM, Bart
    • H03H7/38H03H7/01H03F1/56H03J3/18H03J5/24
    • H03H7/38H03F1/56H03F3/24H03F2200/387H03H7/0153
    • An impedance circuit (10) comprises an input terminal (11), a first and a second capacitive arrangement (12, 13) as well as an output terminal (14) which is coupled to the input terminal (11) by a network (17, 21) which comprises the first and the second capacitive arrangement (12, 13). The first capacitive arrangement (12) comprises a varactor circuit (40) having a varactor (41) and at least one series circuit (47, 48, 49). The at least one series circuit (47, 48, 49) comprises a capacitor (50, 52, 54) and a switch (51, 53, 55) in series connection and is coupled parallel to the varactor circuit (40). The second capacitive arrangement (13) comprises an additional capacitor (15).
    • 阻抗电路(10)包括输入端(11),第一和第二电容性布置(12,13)以及通过网络(17)耦合到输入端(11)的输出端(14) ,21),其包括第一和第二电容布置(12,13)。 第一电容布置(12)包括具有变容二极管(41)和至少一个串联电路(47,48,49)的变容二极管电路(40)。 所述至少一个串联电路(47,48,49)包括电容器(50,52,54)和串联的开关(51,53,55),并且与所述变容二极管电路(40)并联耦合。 第二电容布置(13)包括附加电容器(15)。
    • 7. 发明申请
    • ELECTRONIC COMPONENT COMPRISING VARIABLE CAPACITANCE DIODES, USE OF SAID COMPONENT IN A RECEIVING UNIT AND A CIRCUIT ARRANGEMENT COMPRISING SAID COMPONENT
    • 与容二极管电子元件,使用该元件在接收器单元和电路与组件
    • WO01069687A1
    • 2001-09-20
    • PCT/DE2001/000871
    • 2001-03-07
    • H04N5/44H01L27/08H03J3/18H03J5/24H04B1/18H01L29/93H01L25/07
    • H03J3/185H01L27/0811
    • The invention relates to a component comprising at least one first diode (D1) and a second diode (D2) which are variable capacitance diodes. The characteristic curve of the second diode is provided with a fixed, known ratio in relation to the characteristic curve of the first diode. The first diode (D1) and the second diode (D2) can be provided with the same variation ratio for instance which is the quotient of the greatest and the smallest adjustable capacity. The inventive components are suitable for being used in television tuners, in three-band tuners for instance. Diodes (D1, D2, D3) having the same characteristic curve of different components (IC1, IC2, IC3, IC4) are arranged and switched in a partial receiving unit (VHF1, VHF2, UHF). The integration of several diodes (D1, D2, D3) results in the number of the required components being reduced and in diodes having good synchronous operation characteristics being composed in a more simple and cost-effective manner.
    • 有设置有至少一个第一二极管(D1)和第二二极管(D2),其是变容二极管的器件。 第二二极管的特性具有固定的,已知与第一二极管的关系。 例如,第一二极管(D1)和第二二极管(D2)可以具有相等的变化率,这是最大和最小可调容量的商。 这些器件适用于电视调谐器中,例如在三波段调谐器,其中每个二极管(D1,D2,D3),其具有从各种部件相同的特性(IC1,IC2,IC3,IC4)(在接收单元VHF1的一部分, VHF2,UHF)被布置并相互连接。 多个二极管的集成(D1,D2,D3)降低了具有良好的同步属性二极管的汇编花费所需的组件的数量,和金钱。
    • 8. 发明申请
    • LARGE GAIN RANGE, HIGH LINEARITY, LOW NOISE MOS VGA
    • 高增益范围,高线性,低噪声MOS VGA
    • WO00062419A2
    • 2000-10-19
    • PCT/US2000/009842
    • 2000-04-12
    • H01F17/00H01L23/522H01L27/08H03B5/12H03B5/36H03D7/16H03D7/18H03G1/00H03H11/12H03J3/08H03J3/18H03L7/10H03L7/23
    • H03L7/23H01F17/0013H01F2017/0053H01F2021/125H01L23/5227H01L27/08H01L2924/0002H01L2924/3011H03B5/1215H03B5/1228H03B5/364H03D7/161H03D7/18H03G1/0029H03H11/1291H03J3/08H03J3/185H03J2200/10H03L7/10H01L2924/00
    • An integrated receiver with channel selection and image rejection is substantially implemented on a single CMOS integrated circuit. A receiver front end provides programable attenuation and a programable gain low noise amplifier. LC filters integrated onto the substrate in conjunction with image reject mixers provide image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. Active filters utilize multitrack spiral inductors with shields to increase circuit Q. Frequency planning provides additional image rejection. Local oscillator signal generation methods on chip reduce distortion. A PLL generates needed out of band LO signals. Direct synthesis generates in band LO signals. PLL VCOs are centered automatically. A differential crystal oscillator provides a frequency reference. Differential signal transmission throughout the receiver is used. ESD protection is provided by a pad ring and ESD clamping structure. Shunts utilize a gate boosting at each pin to discharge ESD build up. An IF VGA utilizes distortion cancellation achieved with cross coupled differential pair amplifiers having their Vds dynamically modified in conjunction with current steering of the differential pairs sources.
    • 具有通道选择和图像抑制的集成接收器基本上在单个CMOS集成电路上实现。 接收机前端提供可编程衰减和可编程增益低噪声放大器。 与图像抑制混合器一起集成到衬底上的LC滤波器提供图像频率抑制。 滤波器调谐和电感Q补偿温度在芯片上执行。 有源滤波器利用具有屏蔽的多轨螺旋电感器来增加电路Q.频率规划提供额外的图像抑制。 本地振荡器信号产生方法在芯片上减少失真。 PLL产生所需的带外LO信号。 直接合成产生带内LO信号。 PLL VCO自动居中。 差分晶体振荡器提供频率参考。 使用整个接收机的差分信号传输。 ESD保护由衬垫环和ESD夹紧结构提供。 分流器利用每个引脚上的栅极升压来放电ESD积聚。 IF VGA利用交叉耦合差分对放大器实现的失真消除,其具有与差分对源的电流转向结合动态修改的Vds。
    • 9. 发明申请
    • RESONATOR WITH VARIABLE RESONANCE FREQUENCY
    • 具有可变谐振频率的谐振器
    • WO00054405A1
    • 2000-09-14
    • PCT/SE2000/000468
    • 2000-03-08
    • H03B1/00H03J3/18H03J3/20H03J7/08H03J7/12
    • H03J3/20H03B2201/0208H03J3/185
    • The invention relates to a resonator (200, 300) with variable resonance frequency, intended for connection to an amplifier, thus forming an oscillator, said resonator comprising a resonator circuit (205, 305) for deciding the resonance frequency of the resonator and the oscillator, said resonator circuit comprising an inductance (L), a variable capacitance (Cj), and means (Vtune) for varying the capacitance. The resonator also comprises connection means (C1, Ck; C1, Ck, C2) for connecting the resonator to an amplifier. The resonator is provided with means (Vtune) for varying the capacitance of the connection means in proportion to the variation of the capacitance (Cj) of the resonator circuit. Preferably, the means (Vtune) for varying the capacitance (Ck) of the connection means are arranged such that an essentially constant relationship (Ck/Cj) is maintained between the capacitance (Ck) of the connection means and the first capacitance (Cj) of the resonator across all resonance frequencies.
    • 本发明涉及一种具有可变谐振频率的谐振器(200,300),其用于连接到放大器,从而形成振荡器,所述谐振器包括谐振器电路(205,305),用于确定谐振器的谐振频率和振荡器 所述谐振器电路包括电感(L),可变电容(Cj)和用于改变电容的装置(Vtune)。 谐振器还包括用于将谐振器连接到放大器的连接装置(C1,Ck; C1,Ck,C2)。 谐振器设置有用于根据谐振器电路的电容(Cj)的变化成比例地改变连接装置的电容的装置(Vtune)。 优选地,用于改变连接装置的电容(Ck)的装置(Vtune)被布置成使得在连接装置的电容(Ck)和第一电容(Cj)之间保持基本上恒定的关系(Ck / Cj) 的共振频率。