公开(公告)号：US20130039438A1

公开(公告)日：2013-02-14

申请号：US13207786

申请日：2011-08-11

申请人： Omid Oliaei ,  David Newman ,  Benjamin Gilsdorf ,  Patrick L. Rakers

发明人： Omid Oliaei ,  David Newman ,  Benjamin Gilsdorf ,  Patrick L. Rakers

IPC分类号： H04L27/00

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D2200/0023 ,  H04B1/0057 ,  H04B1/0483

摘要： In accordance with some embodiments of the present disclosure, a multi-band transmitter comprises a plurality of band paths with each band path configured for a different frequency range. Each band path comprises a modulator configured to modulate a data signal onto a carrier signal associated with the frequency range of the band path to generate a radio frequency (RF) signal associated with the band path and frequency range of the band path. Each band path also comprises a step-down balun that includes an input coil configured to receive the RF signal from the modulator. Each band path further comprises a tuner configured to tune the input coil to the frequency range of the band path. The tuner is also configured to compensate for off-state conduction of switches of the tuner to reduce non-linear tuning effects of the balun associated with the off-state conduction.

摘要翻译： 根据本公开的一些实施例，多频带发射机包括多个频带路径，每个频带路径被配置用于不同的频率范围。 每个频带路径包括被配置为将数据信号调制到与频带路径的频率范围相关联的载波信号上以产生与频带路径的频带路径和频带范围相关联的射频（RF）信号的调制器。 每个频带路径还包括降压平衡 - 不平衡变压器，其包括被配置为从调制器接收RF信号的输入线圈。 每个频带路径还包括被配置为将输入线圈调谐到频带路径的频率范围的调谐器。 调谐器还被配置为补偿调谐器的开关的截止状态传导，以减少与断开状态传导相关联的平衡 - 不平衡变换器的非线性调谐效应。

公开(公告)号：US20130015901A1

公开(公告)日：2013-01-17

申请号：US13508513

申请日：2010-10-22

申请人： Masaki Kitsunezuka

发明人： Masaki Kitsunezuka

IPC分类号： G06G7/16 ,  H03K5/00

CPC分类号： H03D7/165 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483

摘要： In a mixer circuit that solves the problem of the extreme increase in circuit complexity that accompanies compensating for amplitude errors and phase errors, a voltage current conversion unit (11) converts an RF signal, which is a voltage signal, to a current signal and supplies the current signal. An RF path selection unit (12) connects its input terminal to any of its output terminals in accordance with the state of a four-phase clock signal and separately supplies, from its output terminals, a plurality of IF signals obtained by multiplying the RF signal by clock signals in the four-phase clock signal. An IF path selection unit (13) switches the connection relationship between its input terminals and its output terminals in accordance with a selection signal (S) and supplies the IF signal input to each of its input terminals from its output terminals that are connected to the input terminals.

摘要翻译： 在解决伴随补偿振幅误差和相位误差的电路复杂度极度增加的问题的混频器电路中，电压电流转换单元（11）将作为电压信号的RF信号转换为电流信号并提供 当前信号。 RF路径选择单元（12）根据四相时钟信号的状态将其输入端子连接到其输出端子，并从其输出端分别提供通过将RF信号 通过四相时钟信号中的时钟信号。 IF路径选择单元（13）根据选择信号（S）切换其输入端子与其输出端子之间的连接关系，并将其输入的每个输入端子的IF信号从连接到其的输出端子 输入端子。

公开(公告)号：US20130009688A1

公开(公告)日：2013-01-10

申请号：US13514070

申请日：2010-12-07

申请人： Imad ud Din ,  Roland Strandberg ,  Lars Sundstrom

发明人： Imad ud Din ,  Roland Strandberg ,  Lars Sundstrom

IPC分类号： G06G7/16

CPC分类号： H03D7/165 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1483 ,  H03D2200/006

摘要： A mixer arrangement for generating an analog output signal mixing an analog input signal with a discrete-time mixing signal. The mixer arrangement comprises a plurality of unit elements. Each unit element is adapted to be in an enabled mode in a first state of an enable signal supplied to the unit element, and in a disabled mode in a second state of the enable signal. Each unit element is adapted to generate the output signal of the unit element based on the analog input signal of the mixer arrangement in the enabled mode but not in the disabled mode. The unit elements are connected for generating a common output signal as the sum of the output signals from the unit elements. The arrangement is adapted to generate the analog output signal of the mixer arrangement based on the common output signal. A corresponding method is also disclosed.

摘要翻译： 一种用于产生将模拟输入信号与离散时间混合信号混合的模拟输出信号的混频器装置。 混合器装置包括多个单元元件。 每个单元元件适于在提供给单元元件的使能信号的第一状态中处于使能模式，并且在使能信号的第二状态中处于禁用模式。 每个单元元件适于基于混合器装置的模拟输入信号在使能模式中而不是在禁用模式下产生单元元件的输出信号。 连接单位元件以产生公共输出信号作为来自单元元件的输出信号的总和。 该装置适于基于公共输出信号产生混频器装置的模拟输出信号。 还公开了相应的方法。

公开(公告)号：US08344818B1

公开(公告)日：2013-01-01

申请号：US11818813

申请日：2007-06-15

申请人： Doron Gamliel

发明人： Doron Gamliel

IPC分类号： H03C1/60 ,  H04B1/68

CPC分类号： H03L7/185 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03L2207/10

摘要： A single sideband mixer is constructed with digital logic elements such as T-type flip-flops and inverters and with FETs, and the resulting mixer circuit simultaneously improves control over the frequency resolution, noise floor and operating frequency range. The use of this group of elements also allows the mixer circuit to be easily realized in an integrated circuit.

摘要翻译： 单个边带混频器由诸如T型触发器和反相器以及FET之类的数字逻辑元件构成，所产生的混频器电路同时改善了对频率分辨率，本底噪声和工作频率范围的控制。 使用这一组元件也允许在集成电路中容易地实现混频器电路。

公开(公告)号：US20120314810A1

公开(公告)日：2012-12-13

申请号：US13482990

申请日：2012-05-29

申请人： Ka-Un Chan ,  Chin-Lung Li

发明人： Ka-Un Chan ,  Chin-Lung Li

IPC分类号： H03C3/00 ,  H03D3/00

CPC分类号： H03C1/547 ,  H03D7/1458 ,  H03D7/166 ,  H03D2200/0019 ,  H03D2200/0082

摘要： A receiver/transmitter and related receiving/method capable of simultaneously receiving/transmitting discontinuous frequency band signal components of an input/output signal are provided. Phase swapping on in-phase/quadrature-phase local oscillation differential signals is applied to frequency down-conversion of the input signal or frequency up-conversion of a baseband signal to be outputted to radio domain, and thereby achieve simultaneously receiving discontinuous frequency bands of the input signal and simultaneously sending different baseband signal components on discontinuous frequency bands of the output signal.

摘要翻译： 提供能够同时接收/发送输入/输出信号的不连续的频带信号分量的接收机/发射机和相关的接收/方法。 将同相/正交相位本地振荡差分信号的相位交换施加到输出信号的下变频或基带信号的上变频以输出到无线电域，从而实现同时接收不连续的频带 输入信号，同时在输出信号的不连续频带上发送不同的基带信号分量。

公开(公告)号：US08306498B2

公开(公告)日：2012-11-06

申请号：US12970874

申请日：2010-12-16

申请人： Hyun Kyu Yu ,  Joon Hee Lee ,  Seong Hwan Cho

发明人： Hyun Kyu Yu ,  Joon Hee Lee ,  Seong Hwan Cho

IPC分类号： H04B1/18 ,  H04K3/00

CPC分类号： H04B1/28 ,  H03D7/1441 ,  H03D7/1458

摘要： Provided is a wideband receiver that has a smaller area and consumes less power and can prevent harmonic mixing occurring due to an increase in the number of communications systems using wideband. A wideband receiver according to an aspect of the invention may include: an front-end unit receiving and performing low-pass filtering on a wideband input signal in a continuous-time domain; and a down-conversion unit sampling and holding an output signal of the front-end unit according to a local oscillator signal and performing low-pass filtering on the output signal in a discrete tie domain.

摘要翻译： 提供了一种宽带接收机，其具有较小的面积并且消耗更少的功率，并且可以防止由于使用宽带的通信系统的数量的增加而发生谐波混合。 根据本发明的一个方面的宽带接收机可以包括：前端单元在连续时域中接收并对宽带输入信号执行低通滤波; 下变频单元根据本地振荡器信号对前端单元的输出信号进行采样和保持，并对离散的连接域中的输出信号进行低通滤波。

公开(公告)号：US20120256676A1

公开(公告)日：2012-10-11

申请号：US13083188

申请日：2011-04-08

申请人： Abdellatif Bellaouar ,  See Taur Lee

发明人： Abdellatif Bellaouar ,  See Taur Lee

IPC分类号： G06G7/12 ,  H03K3/00

CPC分类号： H03F3/505 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/165 ,  H03D2200/0074

摘要： A driver circuit for supplying a drive signal to a mixer circuit comprising a first and second circuit branch and an operational amplifier. The first circuit branch receives an input signal and a bias signal. The second circuit branch receives the input signal. The operational amplifier has a first input connected to a junction node of the first circuit branch and a second input connected to a junction node of the second circuit branch. The operational amplifier is arranged to provide an operational amplifier output signal a second component of the second circuit branch so that a voltage at the junction node of the second circuit branch is equal to a voltage at the junction node of the first circuit branch. The voltage is dependent on the input signal and providing the drive signal.

摘要翻译： 一种驱动电路，用于将驱动信号提供给包括第一和第二电路支路和运算放大器的混频器电路。 第一电路支路接收输入信号和偏置信号。 第二电路支路接收输入信号。 运算放大器具有连接到第一电路支路的结节点的第一输入端和连接到第二电路支路的结节点的第二输入端。 运算放大器被布置成提供运算放大器输出信号第二电路分支的第二分量，使得第二电路分支的结节点处的电压等于第一电路分支的结节点处的电压。 电压取决于输入信号并提供驱动信号。

公开(公告)号：US08275342B2

公开(公告)日：2012-09-25

申请号：US12871626

申请日：2010-08-30

申请人： Brian P. Ginsburg ,  Vijay B. Rentala ,  Srinath M. Ramaswamy ,  Baher S. Haroun ,  Eunyoung Seok

发明人： Brian P. Ginsburg ,  Vijay B. Rentala ,  Srinath M. Ramaswamy ,  Baher S. Haroun ,  Eunyoung Seok

IPC分类号： H04B1/26 ,  H04K3/00

CPC分类号： H01P5/184 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/165 ,  H03D2200/0023

摘要： At very high frequencies, generally above 100 GHz, the performance of traditional radio frequency (RF) circuitry begins to significantly limit performance. An example is the hybrid coupler, which can have a relatively narrow 90° bandwidth in these frequency ranges. Here, however, a branch-line hybrid coupler (which has been integrated into a quadrature downconversion mixer) has been modified. Namely, an adjustable impedance network has been coupled to isolation port (which has traditionally been terminated) to substantially increase the tuning range and expand the bandwidth of the quadrature mixer within these very high frequency ranges.

摘要翻译： 在非常高的频率（通常在100GHz以上），传统射频（RF）电路的性能开始显着地限制性能。 一个例子是混合耦合器，其在这些频率范围内可以具有相对窄的90°带宽。 然而，这里已经修改了分支线路混合耦合器（其已被集成到正交下变频混频器中）。 也就是说，可调阻抗网络已经耦合到隔离端口（传统上已被终止），以显着增加调谐范围并且在这些非常高的频率范围内扩大正交混频器的带宽。

公开(公告)号：US20120200334A1

公开(公告)日：2012-08-09

申请号：US13360926

申请日：2012-01-30

申请人： Lawrence E. Connell ,  Daniel P. McCarthy

发明人： Lawrence E. Connell ,  Daniel P. McCarthy

IPC分类号： G06G7/16

CPC分类号： H03D7/1466 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D7/165 ,  H03D2200/0084 ,  H03D2200/0088

摘要： An apparatus comprising a low noise mixer comprising a transconductance amplifier configured to receive a differential voltage and to generate a differential current signal, a passive mixer directly connected to an output of the transconductance amplifier, and a transimpedance amplifier coupled to the passive mixer, wherein the transimpedance amplifier is configured to receive a current signal and convert the current signal to a voltage signal.

摘要翻译： 一种包括低噪声混合器的装置，包括被配置为接收差分电压并产生差分电流信号的跨导放大器，直接连接到跨导放大器的输出的无源混频器以及耦合到无源混频器的跨阻抗放大器，其中， 跨阻放大器被配置为接收电流信号并将电流信号转换为电压信号。

公开(公告)号：US08204469B2

公开(公告)日：2012-06-19

申请号：US11814562

申请日：2006-01-19

申请人： Petrus Gerardus Maria Baltus ,  Timothy John Ridgers ,  Maja Vidojkovic

发明人： Petrus Gerardus Maria Baltus ,  Timothy John Ridgers ,  Maja Vidojkovic

IPC分类号： H04B1/26

CPC分类号： H03D7/1425 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0043

摘要： The system and method of the present invention provide a single mixer (200-400) with significantly reduced noise performance at a low cost by adding a current control circuit (109) that reduces the current in at least the switching stage (103, 303, 403) during polarity changes of the local oscillator (LO) signal (104). Alternative embodiments (300-400) are provided for a single mixer having significantly reduced noise wherein the low-noise characteristic is enhanced by a further modification to the switching stage (303-403).

摘要翻译： 本发明的系统和方法通过增加一个电流控制电路（109）来提供一种以低成本显着降低噪声性能的单一混频器（200-400），该电流控制电路减少了至少在开关级（103,303， 403），在本地振荡器（LO）信号（104）的极性改变期间。 为具有显着降低的噪声的单个混频器提供替代实施例（300-400），其中通过对开关级（303-403）的进一步修改来增强低噪声特性。