公开(公告)号：WO2014206271A1

公开(公告)日：2014-12-31

申请号：PCT/CN2014/080589

申请日：2014-06-24

Applicant: 华为终端有限公司

Inventor： 王永超 ,  张辉 ,  董峰 ,  王亚军 ,  程岳云

IPC: H03J5/24

CPC classification number: H04B15/00 ,  H01R13/73 ,  H03J5/24

Abstract: 本发明提供一种谐波抑制系统，包括：接口连接头、基带芯片、天线、天线开关、至少两个LC陷波网络、第一差分SPMT开关和第二差分SPMT开关；接口连接头与第一差分SPMT开关的公共端连接；第一差分SPMT开关的控制端口与第二差分SPMT开关的控制端口连接，第一差分SPMT开关的选通掷位端分别与每个LC陷波网络的一端一一对应连接；第二差分SPMT开关的控制端口与基带芯片连接，第二差分SPMT开关的每个选通掷位端分别与每个LC陷波网络的另一端一一对应连接，第二差分SPMT开关的公共端与基带芯片连接；基带芯片与天线开关连接；天线开关与天线连接。

公开(公告)号：WO2014202137A1

公开(公告)日：2014-12-24

申请号：PCT/EP2013/062803

申请日：2013-06-19

Applicant: QUALCOMM TECHNOLOGIES, INC.

Inventor： DE JONGH, Maurice

IPC: H03J1/00 ,  H03J5/24

CPC classification number: H03J5/244 ,  H03H11/04 ,  H03H11/28 ,  H03J1/0008 ,  H03J5/246 ,  H03J2200/10

Abstract: An improved switchable capacitor array comprises a plurality of n ≥ 2 capacitor units, each comprising a capacitor with a capacitance and a switch unit. The capacitor units are electrically connected in series. Equidistantly spaced impedance values can be obtained if the values of the capacitances are chosen properly.

Abstract translation: 一种改进的可切换电容器阵列包括多个n≥2个电容器单元，每个电容器单元包括具有电容的电容器和开关单元。 电容器单元串联电连接。 如果正确选择电容值，则可以获得等距离的阻抗值。

公开(公告)号：WO2005046055A1

公开(公告)日：2005-05-19

申请号：PCT/US2004/032853

申请日：2004-10-05

Applicant: MICROTUNE (TEXAS), L.P. ,  BELK, Nathan, R.

Inventor： BELK, Nathan, R.

IPC: H03J5/24

CPC classification number: H03J5/244 ,  H03J1/0008

Abstract: A system includes a filter and a tuner formed on an integrated circuit. The filter receives an input signal comprising a first number of channels and communicates an intermediate output signal comprising a second number of channels less than the first number of channels. The tuner is coupled to the filter and receives the intermediate output signal and communicates an output signal comprising a third number of channels less than the second number of channels.

Abstract translation: 一种系统包括形成在集成电路上的滤波器和调谐器。 滤波器接收包括第一数量信道的输入信号，并传送包括小于第一数量信道的第二数量信道的中间输出信号。 调谐器耦合到滤波器并接收中间输出信号并传送包括小于第二数量通道的第三数量通道的输出信号。

公开(公告)号：WO2004107574A1

公开(公告)日：2004-12-09

申请号：PCT/IB2004/050758

申请日：2004-05-24

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V. ,  KWONG, Kam, Choon

Inventor： KWONG, Kam, Choon

IPC: H03J5/24

CPC classification number: H03G3/3068 ,  H03G1/0088

Abstract: In a channel selector with and RF preamplifier and a mixer for converting the RF input signals to intermediate frequency output signals, an automatic gain control (AGC) voltage is derived from the IF output signals for reducing the gain of the RF preamplifier after a predetermined “take over point” (delayed AGC). In the IF output path of the mixer a switched attenuator is provided that is switched “on” and “off” under the control of the automatic gain voltage. The attenuator is “on” at levels above the “take over point”.

Abstract translation: 在具有RF前置放大器的通道选择器和用于将RF输入信号转换成中频输出信号的混频器中，从IF输出信号导出自动增益控制（AGC）电压，以在预定的“ 接管点“（延迟AGC）。 在混频器的IF输出路径中，提供了在自动增益电压控制下被切换为“开”和“关”的开关衰减器。 衰减器在“接管点”以上的“开”位置。

公开(公告)号：WO2002089327A1

公开(公告)日：2002-11-07

申请号：PCT/IB2002/001487

申请日：2002-04-24

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  KWONG, Kam, C. ,  TOH, Yeow, T. ,  TEO, Siow, L.

Inventor： KWONG, Kam, C. ,  TOH, Yeow, T. ,  TEO, Siow, L.

IPC: H03J5/24

CPC classification number: H03J5/244

Abstract: By using ICs with combined inputs for the VHF-high bandpass circuit and the UHF bandpass circuit, undesirable resonances occur which are caused by one of the tuned circuits. The problem is solved by providing a switching means for decoupling the UHF bandpass circuit from the combined inputs when a VHF-high band signal is received by the VHF-high bandpass circuit. The switching means comprises a switch coupled between the UHF bandpass circuit and the common inputs.

Abstract translation: 通过使用具有用于VHF高带通电路和UHF带通电路的组合输入的IC，发生由调谐电路之一引起的不期望的共振。 通过提供一种切换装置来解决该问题，当VHF-高带通电路接收VHF-高频带信号时，该开关装置用于将UHF带通电路与组合输入端相耦合。 开关装置包括耦合在UHF带通电路和公共输入之间的开关。

公开(公告)号：WO01084709A1

公开(公告)日：2001-11-08

申请号：PCT/GB2001/001897

申请日：2001-05-01

IPC: H03J5/24

CPC classification number: H03J3/26 ,  H03J5/244

Abstract: A band switching double-tuned circuit for receiving analogue or digital television broadcasts is discribed. It is adapted to receive VHF low band and high band signals and comprises inductive coupling means for each band switching diode (D3, D4) connected at the input and output side and in series with a high band inductor connected to ground. The junction of each switching diode (D3, D4) and high band tuning inductor (L1, L4) are connected to a high band coupling inductor (L6) in order to inductively couple the input to the output. For low band RF response (L2, L5) are aligned, whereas for high band (L1) and (L4) are aligned. (L1) and (L4) can be physically aligned for high band, (by operator manipulation) without having to consider the image frequency. To set the correct image frequency for high band reception, inductor (L6) must be correctly aligned for optimum image rejection.

Abstract translation: 描述了用于接收模拟或数字电视广播的频带切换双重调谐电路。 它适用于接收VHF低频带和高频带信号，并且包括连接在输入和输出侧并与连接到地的高频带电感串联的每个频带开关二极管（D3，D4）的电感耦合装置。 每个开关二极管（D3，D4）和高频带调谐电感（L1，L4）的结点连接到高频带耦合电感（L6），以便将输入电感耦合到输出。 对于低频带RF响应（L2，L5）对齐，而对于高频带（L1）和（L4）被对准。 （L1）和（L4）可以物理上对准高频带，（通过操作员操纵），而不必考虑图像频率。 要设置高频段接收的正确图像频率，电感（L6）必须正确对齐，以获得最佳的图像抑制。

公开(公告)号：WO01076067A1

公开(公告)日：2001-10-11

申请号：PCT/EP2001/003365

申请日：2001-03-22

IPC: H03J5/24

CPC classification number: H03J5/24 ,  H03J2200/10

Abstract: Receivers for receiving AM signals normally use many elements which are not integrable. This results in high costs and bulky circuits. Proposed is to use switched capacitors in the RF stage of such a receiver, which results in reducing the external elements to a great extend.

Abstract translation: 用于接收AM信号的接收机通常使用许多不可集成的元件。 这导致高成本和庞大的电路。 建议在这种接收器的RF级中使用开关电容器，从而大大减少外部元件。

公开(公告)号：WO01001573A1

公开(公告)日：2001-01-04

申请号：PCT/DE2000/002066

申请日：2000-06-26

IPC: H03L7/093 ,  H03J5/02 ,  H03J5/24 ,  H03L7/089 ,  H03L7/183 ,  H04L27/00 ,  H04L27/26 ,  H04N5/44 ,  H04N5/455 ,  H03L7/18

CPC classification number: H03L7/0898 ,  H03J5/0281 ,  H03J5/244 ,  H03L7/183 ,  H04L27/2657 ,  H04L2027/0016 ,  H04L2027/0028 ,  H04L2027/0059 ,  H04L2027/0067 ,  H04N5/4401 ,  H04N5/455

Abstract: The invention relates to a phase-locked loop system for tuning the receive frequency of a receiver for digitally and analogly modulated receive signals, comprising at least one voltage-controlled oscillator (29, 45) for generating an oscillator signal for tuning the receive frequency, a first frequency divider (71) for dividing the frequency of the oscillator signal to a desired standard frequency in accordance with a receive channel selection signal, a reference oscillator (84) for releasing a reference oscillator signal with a certain reference frequency, a second frequency divider (81) for dividing the reference frequency according to a certain receive type-switch signal, and a phase comparing circuit (83, 88) for comparing the signals released by the frequency dividers (71, 81) in order to generate a tuning voltage for the voltage controlled oscillator (29, 45). The amplification KD of the phase comparing circuit (83, 88) can be adjusted in order to optimise the phase noise.

Abstract translation: 锁相环系统用于调谐接收机的接收频率为用于划分所述振荡器信号的频率的标称比较频率的一个函数产生用于接收频率调谐，第一分频器（71）的振荡器信号进行数字和模拟调制的所接收的信号具有至少一个压控振荡器（29，45） 接收信道选择信号，参考振荡器（84），用于在特定的参考频率用于将参考频率作为接收模式切换信号的用于比较的函数，一个相位比较电路（83，88）发射的参考振荡器信号，第二分频器（81） 该分频器（71,81）的输出信号，以产生一个调谐电压的电压控制振荡器（29，45），其中，所述相位比较电路（83，88）的扩增KD是可调节的，以优化相位噪声。

公开(公告)号：WO00067376A1

公开(公告)日：2000-11-09

申请号：PCT/US2000/011800

申请日：2000-05-02

IPC: H03B5/12 ,  H03B7/06 ,  H03J5/24

CPC classification number: H03J5/246 ,  H03B5/1215 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1246 ,  H03B7/06 ,  H03J2200/10

Abstract: A method and apparatus for fully integrating a Voltage Controlled Oscillator (VCO) on an integrated circuit. The VCO is implemented using a differential-mode circuit design. The differential-mode implementation of the VCO preferably comprises a differential mode LC-resonator circuit, a digital capacitor, a differential pair amplifier, and a current source. The LC-resonator circuit includes at least one tuning varactor and two high Q inductors. The tuning varactor preferably has a wide tuning capacitance range. The tuning varactor is only used to "fine-tune" the center output frequency fo of the VCO. The center output frequency fo is coarsely tuned by the digital capacitor. The VCO high Q inductors comprise high gain, high self-resonance, and low loss IC inductors. The IC VCO is fabricated on a high resistivity substrate material using a trench isolated guard ring. The guard ring isolates the fully integrated VCO, and each of its component parts, from RF signals that may be introduced into the IC substrate by other devices. By virtue of the improved performance characteristics provided by the digital capacitor, the analog tuning varactor, the high Q inductor, and the trench isolated guard ring techniques, the inventive VCO is fully integrated despite process variations in IC fabrication.

Abstract translation: 一种用于在集成电路上完全集成压控振荡器（VCO）的方法和装置。 VCO使用差分电路设计实现。 VCO的差分模式实现优选地包括差分模式LC谐振器电路，数字电容器，差分对放大器和电流源。 LC谐振器电路包括至少一个调谐变容二极管和两个高Q电感器。 调谐变容二极管优选具有宽的调谐电容范围。 调谐变容二极管仅用于“微调”VCO的中心输出频率fo。 中心输出频率fo被数字电容器粗调。 VCO高Q电感包括高增益，高自谐振和低损耗IC电感。 IC VCO使用沟槽隔离保护环在高电阻率衬底材料上制造。 保护环将完全集成的VCO及其每个组成部分与RF信号隔离，RF信号可能被其他器件引入到IC基板中。 凭借由数字电容器，模拟调谐变容二极管，高Q电感器和沟槽隔离保护环技术提供的改进的性能特征，尽管IC制造中的过程变化，本发明的VCO是完全集成的。

公开(公告)号：WO00019626A1

公开(公告)日：2000-04-06

申请号：PCT/DE1999/003079

申请日：1999-09-24

IPC: H03H7/46 ,  H03J5/14 ,  H03J5/24 ,  H04B1/18 ,  H04B1/40

CPC classification number: H03J5/14 ,  H03H7/46 ,  H03J5/248 ,  H04B1/18 ,  H04B1/406

Abstract: The inventive mobile radiotelephone terminal has a transmitting step, a receiving step and an antenna switching and adapting step, each of which have an arrangement of passive components to which a plurality of electrostatic-mechanical microswitches or microrelays are allocated, and which can be programmed in at least one function parameter, especially the frequency characteristic, by controlling a predetermined configuration of the microswitches or microrelays. The inventive terminal also has a programmable control unit.

Abstract translation: 移动通信终端，包括一个发送台，接收台，一个Antennenumschalt-和-anpassstufe各自具有无源元件的阵列，其被分配给静电微机械或微继电器多个，并且所述或通过激活微动开关的预定构型 。微型继电器可以在每种情况下被编程的至少一个功能参数，尤其是频率特性，和一个可编程控制单元。