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1. 发明授权

US08503963B2 Amplifier with on-chip filter 有权
标题翻译：具有片上滤波器的放大器
公开(公告)号：US08503963B2
公开(公告)日：2013-08-06
申请号：US13173973
申请日：2011-06-30
申请人： Pete Sivonen , Jonne Riekki , Jouni Kaukovuori , Sami Vilhonen , Jarkko Jussila
发明人： Pete Sivonen , Jonne Riekki , Jouni Kaukovuori , Sami Vilhonen , Jarkko Jussila
IPC分类号： H04B1/10
CPC分类号： H03H19/008
摘要： An integrated circuit for a radio receiver comprising a radio-frequency amplifier and a radio-frequency filter is described. The amplifier receives radio-frequency signals from an antenna, the filter is connected to the amplifier output, and the output of the filter is provided to a processing stage of the receiver. The amplifier comprises an amplifying stage controlled by a radio-frequency input signal and a signal fed back from the filter. The amplifier input impedance is substantially matched to the antenna impedance at a frequency band of interest. The signal fed back from the filter providing attenuation of signals outside the frequency band of interest at the amplifier input. The filter comprises one or more filter components. A filter component comprises a first input and a second input for receiving the amplifier output, a first switch arranged to selectively connect the first input to a first impedance, a second switch arranged to selectively connect the first input to a second impedance, a third switch arranged to selectively connect the second input to the first impedance, and a fourth switch arranged to selectively connect the second input to the second impedance. The first and fourth switches are controlled by a first oscillator signal and the second and third switches are controlled by a second oscillator signal that is 180° out of phase with the first oscillator signal.
摘要翻译：描述了一种用于包括射频放大器和射频滤波器的无线电接收机的集成电路。放大器从天线接收射频信号，滤波器连接到放大器输出，滤波器的输出提供给接收器的处理级。放大器包括由射频输入信号控制的放大级和从滤波器反馈的信号。放大器输入阻抗基本上与感兴趣的频带处的天线阻抗匹配。从滤波器反馈的信号在放大器输入端提供感兴趣频带之外的信号衰减。过滤器包括一个或多个过滤器部件。滤波器部件包括用于接收放大器输出的第一输入端和第二输入端，布置成选择性地将第一输入端连接到第一阻抗的第一开关，布置成有选择地将第一输入端连接到第二阻抗的第二开关，第三开关布置成选择性地将第二输入端连接到第一阻抗，以及第四开关，被布置为选择性地将第二输入端连接到第二阻抗。第一和第四开关由第一振荡器信号控制，第二和第三开关由与第一振荡器信号相差180°的第二振荡器信号控制。

2. 发明申请

US20080299929A1 Increasing sensitivity of radio receiver 失效
标题翻译：增加无线电接收机的灵敏度
公开(公告)号：US20080299929A1
公开(公告)日：2008-12-04
申请号：US11826788
申请日：2007-07-18
申请人： Jarmo Juhani Heinonen , Sami Vilhonen
发明人： Jarmo Juhani Heinonen , Sami Vilhonen
IPC分类号： H04B7/005
CPC分类号： H03G3/3068 , H03G3/3078
摘要： A direct-conversion radio receiver is provided. The receiver includes a first measurement unit configured to measure a signal level of a received signal at an input of the receiver. The receiver also includes a gain controller configured to stepwise adjust at least a front-end gain and a baseband gain of the receiver when the signal level of the received signal at the input of the receiver exceeds a given sensitivity level, and adjust the front-end gain with at least one further gain step when the input signal level is below the given sensitivity level.
摘要翻译：提供直接转换无线电接收机。接收机包括第一测量单元，其被配置为在接收机的输入处测量接收信号的信号电平。接收机还包括增益控制器，配置成当接收机输入端的接收信号的信号电平超过给定灵敏度时，逐步调整接收机的前端增益和基带增益，当输入信号电平低于给定灵敏度电平时，具有至少一个进一步增益步长的最终增益。

3. 发明申请

US20080224763A1 Transferred-Impedance Filtering in Rf Receivers 有权
标题翻译： Rf接收机中的传输阻抗滤波
公开(公告)号：US20080224763A1
公开(公告)日：2008-09-18
申请号：US11795926
申请日：2006-03-17
申请人： Sami Vilhonen
发明人： Sami Vilhonen
IPC分类号： H03K5/00
CPC分类号： H03H19/008 , H04B1/0017 , H04B1/18
摘要： The specification and drawings present a new method and apparatus for using transferred-impedance filtering in RF (radio frequency) receivers (e.g., inside of a mobile communication device), wherein said filtering can be done with MOS-switches transferring impedance of a regular RC or RCL circuit to RF frequency filtering inside an RFIC (radio frequency integrated circuit).
摘要翻译：本说明书和附图提出了一种在RF（射频）接收机（例如，移动通信设备内部）中使用传输阻抗滤波的新方法和装置，其中所述滤波可以通过传输常规RC的阻抗的MOS开关来完成或RCL电路到RFIC（射频集成电路）内的RF频率滤波。

4. 发明申请

US20070218844A1 Transmitter, power amplifier and filtering method 有权
标题翻译：发射机，功率放大器和滤波方法
公开(公告)号：US20070218844A1
公开(公告)日：2007-09-20
申请号：US11378135
申请日：2006-03-17
申请人： Marko Alanen , Sami Vilhonen , Ari Vilander
发明人： Marko Alanen , Sami Vilhonen , Ari Vilander
IPC分类号： H04B1/38
CPC分类号： H04B1/0475 , H03H19/008
摘要： A filtering method, a transceiver and a transmitter are provided. The transmitter comprises a power amplifier amplifying an RF signal and having multiple stages, and a local oscillator, the power amplifier comprising between at least two stages of the power amplifier an impedance circuitry for forming an impedance at a frequency related to the frequency of the local oscillator, and a switch for switching the impedance of the impedance circuitry means to RF frequency.
摘要翻译：提供了一种滤波方法，收发器和发射机。所述发射机包括放大RF信号并具有多级的功率放大器，以及本地振荡器，所述功率放大器包括所述功率放大器的至少两级之间的阻抗电路，用于在与所述局部的频率相关的频率处形成阻抗振荡器和用于将阻抗电路装置的阻抗切换到RF频率的开关。

5. 发明授权

US08451157B2 Double balanced digital transmitter 有权
标题翻译：双平衡数字发射机
公开(公告)号：US08451157B2
公开(公告)日：2013-05-28
申请号：US13076717
申请日：2011-03-31
申请人： Sami Vilhonen , Rami Tapani Eskola
发明人： Sami Vilhonen , Rami Tapani Eskola
IPC分类号： H03M1/66
CPC分类号： H03M1/802
摘要： A digital-to-analog upconverter directly converts a baseband digital value comprising a plurality of bits to an RF analog signal to combine digital-to-analog operations with frequency upconversion operations. One exemplary digital-to-analog upconverter comprises a plurality of conversion units, one for each of the plurality of bits in the baseband digital value, and an output node coupled to each of the conversion units. Each conversion unit generates a weighted analog signal at a low frequency or at a radio frequency responsive to the corresponding input bit and an oscillator signal at RF. The weighting factor of each conversion unit corresponds to a relative weighting of the corresponding bit. The output node combines the weighted analog signals to generate a combined RF analog signal representative of the baseband digital value.
摘要翻译：数模转换上变频器将包含多个位的基带数字值直接转换为RF模拟信号，以将数模转换操作与上变频操作组合。一个示例性的数/模上变频器包括多个转换单元，一个用于基带数字值中的多个比特中的每一个，以及耦合到每个转换单元的输出节点。每个转换单元响应于相应的输入位和RF处的振荡器信号以低频率或射频产生加权模拟信号。每个转换单元的加权因子对应于相应位的相对加权。输出节点组合加权模拟信号以产生表示基带数字值的组合RF模拟信号。

6. 发明申请

US20060214736A1 Operating a phase locked loop 有权
标题翻译：操作锁相环
公开(公告)号：US20060214736A1
公开(公告)日：2006-09-28
申请号：US11102936
申请日：2005-03-23
申请人： Vesa Salonen , Sami Vilhonen
发明人： Vesa Salonen , Sami Vilhonen
IPC分类号： H03L7/00
CPC分类号： H03L7/189 , H03L7/113
摘要： A PLL comprises a VCO and a loop filter, wherein the VCO generates an AC output signal having a frequency which depends on an applied control voltage, and wherein the loop filter provides a control voltage to the VCO. The control voltage reflects determined phase differences between a potentially frequency divided output signal of the VCO and a reference signal. When operating the PLL, frequency deviations between a potentially frequency divided output signal of the VCO and a reference signal are detected and in addition, a resolution employed for detecting the frequency deviations is lower than a resolution employed for determining the phase differences. In case a frequency deviation is detected, a direct-current voltage shift is added to the control voltage provided by the loop filter.
摘要翻译： PLL包括VCO和环路滤波器，其中VCO产生具有取决于施加的控制电压的频率的AC输出信号，并且其中环路滤波器向VCO提供控制电压。控制电压反映了VCO的潜在分频输出信号与参考信号之间确定的相位差。当操作PLL时，检测VCO的潜在分频输出信号与参考信号之间的频率偏差，此外，用于检测频率偏差的分辨率低于用于确定相位差的分辨率。在检测到频率偏差的情况下，将直流电压偏移加到由环路滤波器提供的控制电压。

7. 发明授权

US07027783B2 Method and apparatus providing reduction in transmitter current consumption using signal derived from rectified input signal 有权
标题翻译：使用从整流输入信号得到的信号提供发射机电流消耗降低的方法和装置
公开(公告)号：US07027783B2
公开(公告)日：2006-04-11
申请号：US10372685
申请日：2003-02-24
申请人： Sami Vilhonen , Sami Vaara
发明人： Sami Vilhonen , Sami Vaara
IPC分类号： H04B1/04 , H01Q11/12
CPC分类号： H04B1/04
摘要： A method is disclosed for operating a radio frequency transmitter chain component, as is a radio frequency transmitter chain component that operates in accordance with the method. The method includes receiving an input signal to be mixed with a signal output from an oscillator, where the input signal is received through an operational amplifier. The method further includes applying an output of the operational amplifier to an input of a mixing circuit, rectifying the input signal to produce a rectified input signal and controlling a common-mode output voltage of the operational amplifier with the rectified input signal. This process varies the power consumption of the component in a manner that is proportional to a value of the input signal. A further step couples a mixer output signal to an input of a VGA. The component may include both the mixer and the VGA. In the preferred embodiment the input signal and the mixer output signal are differential signals.
摘要翻译：公开了一种用于操作射频发射机链组件的方法，以及根据该方法操作的射频发射机链组件。该方法包括接收与从振荡器输出的信号混合的输入信号，其中通过运算放大器接收输入信号。该方法还包括将运算放大器的输出应用于混合电路的输入，整流输入信号以产生整流的输入信号，并用经整流的输入信号控制运算放大器的共模输出电压。该过程以与输入信号的值成比例的方式改变部件的功耗。另一步骤将混频器输出信号耦合到VGA的输入。该组件可以包括混频器和VGA。在优选实施例中，输入信号和混频器输出信号是差分信号。

8. 发明授权

US06972633B2 Calibrating a loop-filter of a phase locked loop 有权
标题翻译：校准一个锁相环的环路滤波器
公开(公告)号：US06972633B2
公开(公告)日：2005-12-06
申请号：US10650367
申请日：2003-08-27
申请人： Sami Vilhonen , Jari Melava
发明人： Sami Vilhonen , Jari Melava
IPC分类号： H03H7/01 , H03H7/06 , H03H7/12 , H03H7/54 , H03L7/089 , H03L7/093 , H03L7/107
CPC分类号： H03H7/54 , H03H7/0153 , H03H7/06 , H03H7/12 , H03H2210/043 , H03L7/0891 , H03L7/093
摘要： The invention relates to a method of automatically calibrating a loop-filter of a phase locked loop, which loop-filter comprises at least one RC-filter component and is integrated on a single chip together with at least one RC-filter component of another entity than the phase locked loop. In order to simplify a calibration of the loop-filter, the method comprises tuning the at least one RC-filter component of the loop-filter based on measurements performed on the at least one RC-filter component of the other entity. The invention relates equally to an integrated circuit chip comprising means for realizing this method and to a unit including such a chip.
摘要翻译：本发明涉及一种自动校准锁相环的环路滤波器的方法，该环路滤波器包括至少一个RC滤波器组件，并且与另一实体的至少一个RC滤波器组件一起集成在单个芯片上比锁相环。为了简化环路滤波器的校准，该方法包括基于对另一实体的至少一个RC滤波器组件执行的测量来调谐环路滤波器的至少一个RC滤波器组件。本发明同样涉及一种集成电路芯片，其包括用于实现该方法的装置和包括这种芯片的单元。

9. 发明授权

US06958653B2 Temperature compensated amplifier 失效
标题翻译：温度补偿放大器
公开(公告)号：US06958653B2
公开(公告)日：2005-10-25
申请号：US10836677
申请日：2004-04-30
申请人： Sami Vaara , Sami Vilhonen
发明人： Sami Vaara , Sami Vilhonen
IPC分类号： H03F1/30 , H03F3/45
CPC分类号： H03F3/45479 , H03F1/30 , H03F3/45085 , H03F2203/45286 , H03F2203/45732
摘要： A temperature compensated amplifier with variable gain and to a radio device having an amplifier according to it. The gain control and temperature compensation of a differential amplifier (210) are implemented by a control circuit (220), which has a balanced and differential output (V1, V2). The output voltage of the control circuit, or the control voltage, is arranged to be proportional to difference between two source currents (IGT1, IGT2), which difference can be varied on both sides of zero. The output of the control circuit is connected to the bases of the differential pair (Q1, Q2) of the variable gain amplifier, whereupon the ratio of the output current (iout) to the input current (iin) of the pair becomes dependent on the control voltage. This is arranged to be proportional to the absolute temperature, too. A temperature change then changes the control voltage the more the higher the control voltage is. The temperature coefficient is adjusted so that the effect of the temperature on the current difference of the differential pair of the variable gain amplifier is compensated. Owing to differential type control circuit the current gain with temperature compensation can be varied in the whole range 0 . . . 1.
摘要翻译：具有可变增益的温度补偿放大器和具有根据其的放大器的无线电设备。差分放大器（210）的增益控制和温度补偿由控制电路（220）实现，控制电路（220）具有平衡和差分输出（V SUB1，V SUB2 / ）。控制电路的输出电压或控制电压被布置成与两个源电流（I GT1，I GT2）之间的差成比例，该差可以是变化在零的两边。控制电路的输出端连接到可变增益放大器的差分对（Q 1，Q 2）的基极，于是输出电流（i OUT）与输入电流的比值（中）取决于控制电压。这也被设置成与绝对温度成正比。温度变化然后改变控制电压越高控制电压。调节温度系数，使得温度对可变增益放大器的差分对的电流差的影响得到补偿。由于差分型控制电路，温度补偿的电流增益可以在整个范围0内变化。。。 1。

10. 发明申请

US20050046485A1 Tuning a loop-filter of a PLL 有权
标题翻译：调整PLL的环路滤波器
公开(公告)号：US20050046485A1
公开(公告)日：2005-03-03
申请号：US10641726
申请日：2003-08-15
申请人： Sami Vilhonen , Jari Melava
发明人： Sami Vilhonen , Jari Melava
IPC分类号： H03L7/089 , H03L7/093 , H03L7/00
CPC分类号： H03L7/0895 , H03L7/093
摘要： The invention relates to a method of automatically tuning a loop-filter of a phase locked loop. The loop-filter includes a capacitance at an output of a charge pump of the phase locked loop, and the charge pump provides current impulses to the loop-filter. In order to enable a simple tuning of the loop-filter, the method comprises adjusting the amplitude of the current impulses output by the charge pump essentially proportionally to the capacitance at the output of the charge pump. The invention relates equally to a phase locked loop comprising means for realizing this method and to a unit comprising such a phase locked loop.
摘要翻译：本发明涉及一种自动调谐锁相环的环路滤波器的方法。环路滤波器包括在锁相环的电荷泵的输出处的电容，并且电荷泵向环路滤波器提供电流脉冲。为了实现环路滤波器的简单调谐，该方法包括基本成比例地调整由电荷泵输出的电流脉冲的幅度与电荷泵输出端的电容成正比。本发明同样涉及一种锁相环，包括用于实现该方法的装置和包括这种锁相环的单元。

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