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1. 发明申请

US20120161844A1 FLEXIBLE LOW NOISE, HIGH LINEARITY, HIGH FREQUENCY, LOW POWER, FULLY DIFFERENTIAL MIXER AND CLASS AB POST-MIXER AMPLIFIER SYSTEM FOR SDR APPLICATIONS 有权
标题翻译：灵活的低噪声，高线性，高频，低功耗，全差分混频器和AB类后置放大器系统，用于SDR应用
公开(公告)号：US20120161844A1
公开(公告)日：2012-06-28
申请号：US12980147
申请日：2010-12-28
申请人： CHONG HIN CHEE , PAUL H. GAILUS , SHAFIULLAH SYED
发明人： CHONG HIN CHEE , PAUL H. GAILUS , SHAFIULLAH SYED
IPC分类号： G06G7/12 , H03F3/45
CPC分类号： H03F3/195 , H03F1/0277 , H03F3/45197 , H03F3/45636 , H03F3/45654 , H03F3/72 , H03F2200/294 , H03F2203/45374 , H03F2203/45528 , H03F2203/45618 , H03F2203/45702 , H03F2203/7215
摘要： A post-mixer amplifier device which receives and processes signals for use in a software-defined radio integrated circuit is provided. The post-mixer amplifier device includes but is not limited to a voltage amplifier having first and second inputs and a first output, a positive signal output connected with the first output of the voltage amplifier, and a positive signal input connected with a first bipolar junction transistor along a first pathway. The first bipolar junction transistor includes but is not limited to a first collector connected with a the first input of the voltage amplifier and a first emitter connected with an second output of the push-pull unity gain follower and forming a first current feedback pathway. The first bipolar junction transistor is driven with a passive resistive load.
摘要翻译：提供一种接收和处理用于软件定义的无线电集成电路中的信号的后混频器放大器装置。后混频放大器装置包括但不限于具有第一和第二输入和第一输出的电压放大器，与电压放大器的第一输出连接的正信号输出和与第一双极结相连的正信号输入晶体管沿着第一路径。第一双极结型晶体管包括但不限于与电压放大器的第一输入端连接的第一集电极和与推挽式单位增益跟随器的第二输出端连接并形成第一电流反馈通路的第一发射极。第一个双极结型晶体管由无源电阻负载驱动。

2. 发明申请

US20080164956A1 METHOD AND APPARATUS TO FACILITATE THE PROVISION AND USE OF A PLURALITY OF VARACTORS WITH A PLURALITY OF SWITCHES 有权
标题翻译：方法和装置，以便提供多种多样的开关量的多样化装置的使用和使用
公开(公告)号：US20080164956A1
公开(公告)日：2008-07-10
申请号：US11621769
申请日：2007-01-10
申请人： PAUL H. GAILUS , JOSEPH A. CHARASKA
发明人： PAUL H. GAILUS , JOSEPH A. CHARASKA
IPC分类号： H03B5/12
CPC分类号： H03J3/20 , H03B2201/0208 , H03J2200/10
摘要： A plurality of varactors are coupled via a first electrode to a shared terminal that in turn can operably couple to a source of control voltage. A second electrode for each varactor couples to a corresponding switch, where each switch couples to at least two different voltage levels. So configured, the second electrode of each varactor can be individually connected to either of two voltage levels. This can be leveraged to control, in coarse steps, the overall aggregate effective capacitance presented by these components. At least some of these varactors can have differing corresponding capacitances, the specific values of which can be selected in order to facilitate relatively equal spacing and substantially equal rates of reactance change versus the control voltage value between aggregate-capacitive reactance ranges as correspond to differing settings for the switches at various levels for the control voltage source.
摘要翻译：多个变容二极管经由第一电极耦合到共享端子，共享端子又可操作地耦合到控制电压源。每个变容二极管的第二电极耦合到相应的开关，其中每个开关耦合到至少两个不同的电压电平。如此配置，每个变容二极管的第二电极可以单独连接到两个电压电平中的任一个。这可以用来粗略地控制由这些组件提供的总体有效电容。这些变容二极管中的至少一些可以具有不同的对应电容，其特定值可以被选择以便于相对于不同的设置来促进相对等间隔和基本相等的电抗变化率与聚集电容电抗范围之间的控制电压值用于控制电压源的各种开关。

3. 发明申请

US20080171522A1 WIRELESS COMMUNICATION UNIT, LINEARISED TRANSMITTER CIRCUIT AND METHOD OF LINEARISING THEREIN 有权
标题翻译：无线通信单元，线性发射机电路及其线性化方法
公开(公告)号：US20080171522A1
公开(公告)日：2008-07-17
申请号：US11623848
申请日：2007-01-17
申请人： MOSHE BEN-AYUN , PAUL H. GAILUS , OVADIA GROSSMAN , MARK ROZENTAL
发明人： MOSHE BEN-AYUN , PAUL H. GAILUS , OVADIA GROSSMAN , MARK ROZENTAL
IPC分类号： H04B1/02
CPC分类号： H04B1/0475
摘要： A wireless communication unit includes a linearised transmitter having a forward path and a feedback path, respectively comprising at least one up-mixer and down-mixer, and forming two loops in quadrature. A phase training signal is applied to the at least one down-mixer in the feedback path in an open loop mode of operation to identify a loop phase adjustment to be applied. At least one of the two loops is switched to a closed loop mode of operation and the loop phase adjustment is applied to at least one up-mixer located in the forward path.
摘要翻译：无线通信单元包括具有前向路径和反馈路径的线性化发射机，分别包括至少一个上混频器和下混频器，并且形成正交的两个回路。相位训练信号以开环操作模式施加到反馈路径中的至少一个下混频器，以识别要施加的环路相位调整。两个循环中的至少一个被切换到闭环操作模式，并且循环相位调整被施加到位于前向路径中的至少一个上混频器。

4. 发明申请

US20090081984A1 METHOD AND APPARATUS FOR SPUR REDUCTION IN A FREQUENCY SYNTHESIZER 有权
标题翻译：用于频率合成器中减少的方法和装置
公开(公告)号：US20090081984A1
公开(公告)日：2009-03-26
申请号：US11860636
申请日：2007-09-25
申请人： PAUL H. GAILUS , JOHN J. BOZEKI , JOSEPH A. CHARASKA , VADIM DUBOV , MANUEL P. GABATO, JR. , ARMANDO J. GONZALEZ
发明人： PAUL H. GAILUS , JOHN J. BOZEKI , JOSEPH A. CHARASKA , VADIM DUBOV , MANUEL P. GABATO, JR. , ARMANDO J. GONZALEZ
IPC分类号： H04B1/26 , H03B21/00 , H03L1/00
CPC分类号： H03L7/1974
摘要： A frequency synthesizer includes: a frequency source generating a reference signal that includes a plurality of pulses having periodicity based on a reference frequency; a feedback loop that includes, a phase detector circuit, a loop filter, a controlled oscillator that generates an output signal at an output, and a loop divide circuit; a non-linear circuit element at an input of the phase detector circuit, which generates intermodulation distortion that causes at least one spurious signal at the output; and a controller controlling the loop divide circuit and the non-linear circuit element. The frequency synthesizer further includes a dither circuit that adjusts the timing of some of the pulses of the reference signal based on a parameter provided by the controller to the non-linear circuit element, thereby, providing a jittered reference signal to the non-linear circuit element for attenuating the at least one spurious signal at the output.
摘要翻译：频率合成器包括：频率源，产生包括基于参考频率具有周期性的多个脉冲的参考信号; 反馈回路，包括相位检测器电路，环路滤波器，在输出端产生输出信号的受控振荡器和环路除法电路; 在相位检测器电路的输入处的非线性电路元件，其产生在输出端引起至少一个杂散信号的互调失真; 以及控制环路分割电路和非线性电路元件的控制器。频率合成器还包括抖动电路，其基于由控制器向非线性电路元件提供的参数来调整参考信号的一些脉冲的定时，从而向非线性电路提供抖动参考信号元件，用于衰减输出端的至少一个杂散信号。

5. 发明申请

US20080273626A1 SYSTEM AND METHOD FOR PERFORMING BASEBAND PHASE SHIFTING IN A CARTESIAN FEEDBACK SYSTEM 有权
标题翻译：用于在卡特彼勒反馈系统中执行基带相移的系统和方法
公开(公告)号：US20080273626A1
公开(公告)日：2008-11-06
申请号：US11743746
申请日：2007-05-03
申请人： JOSHUA E. DOREVITCH , JOHN J. BOZEKI , PAUL H. GAILUS , MARK ROZENTAL
发明人： JOSHUA E. DOREVITCH , JOHN J. BOZEKI , PAUL H. GAILUS , MARK ROZENTAL
IPC分类号： H04L25/49
CPC分类号： H04L27/364 , H04L2027/0018
摘要： A system and method for performing baseband phase shifting in a Cartesian feedback system includes a forward path for receiving an input baseband signal having two components, and performing up-conversion to output a RF signal; a power amplifier for amplifying the RF signal output from the forward path; and a feedback path for down-converting at least a sample of the output from the power amplifier to a feedback baseband signal comprising two components, and providing the feedback baseband signal to the forward path in order to be summed with the input baseband signal at a summing junction and before the loop filter. The forward path includes a baseband phase shifter for adjusting the baseband signal output from the summing junction in order to compensate for any phase shifts induced in the system.
摘要翻译：用于在笛卡尔反馈系统中执行基带相移的系统和方法包括用于接收具有两个分量的输入基带信号的前向路径，并执行上变频以输出RF信号; 用于放大从前向路径输出的RF信号的功率放大器; 以及反馈路径，用于将来自功率放大器的输出的至少一个采样的样本下变频为包括两个分量的反馈基带信号，并将反馈基带信号提供给前向路径，以便将其与输入基带信号相加求和结点和环路滤波器之前。正向路径包括基带移相器，用于调整从求和结点输出的基带信号，以便补偿系统中引起的任何相移。

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