专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2012154840A2 SYSTEM PROVIDING SWITCHABLE IMPEDANCE TRANSFORMER MATCHING FOR POWER AMPLIFIERS 审中-公开
标题翻译：系统为功率放大器提供可切换的阻抗变压器匹配
公开(公告)号：WO2012154840A2
公开(公告)日：2012-11-15
申请号：PCT/US2012/037102
申请日：2012-05-09
申请人： QUALCOMM INCORPORATED , CHAN, Ngar Loong Alan
发明人： CHAN, Ngar Loong Alan
IPC分类号： H03F1/02
CPC分类号： H03F1/0277 , H03F3/189
摘要： System providing switchable impedance transformer matching for power amplifiers. In an exemplary implementation, an amplifier providing switchable impedance matching includes an output inductor (L1) that is part of an output path of the amplifier and a first amplifier stage comprising a first inductor (L4) coupled to the output inductor, the first inductor configured to couple a signal amplified by the first amplifier stage at a first power level to the output inductor in response to a first enable signal. The amplifier also includes a second amplifier stage comprising a second inductor (L5) coupled to the output inductor, the second inductor configured to couple the signal amplified by the second amplifier stage at a second power level to the output inductor in response to a second enable signal.
摘要翻译：为功率放大器提供可切换阻抗变压器匹配系统。在示例性实现中，提供可切换阻抗匹配的放大器包括作为放大器的输出路径的一部分的输出电感器（L1）和包括耦合到输出电感器的第一电感器（L4）的第一放大器级，第一电感器被配置以响应于第一使能信号将由第一放大器级放大的信号以第一功率电平耦合到输出电感器。放大器还包括第二放大器级，其包括耦合到输出电感器的第二电感器（L5），第二电感器被配置为响应于第二功能将处于第二功率电平的由第二放大器级放大的信号耦合到输出电感器信号。

2. 发明申请

WO2011143504A1 AREA EFFICIENT CONCURRENT MATCHING TRANSCEIVER 审中-公开
标题翻译：区域有效的相互匹配收发器
公开(公告)号：WO2011143504A1
公开(公告)日：2011-11-17
申请号：PCT/US2011/036353
申请日：2011-05-12
申请人： QUALCOMM Incorporated , CHAN, Ngar Loong Alan , CHOI, Jonghoon , GUPTA, Bindu
发明人： CHAN, Ngar Loong Alan , CHOI, Jonghoon , GUPTA, Bindu
IPC分类号： H03F1/22 , H03F1/56 , H03F3/195 , H03F3/24 , H03F3/72 , H04B1/44 , H04B1/48 , H03H7/38
CPC分类号： H03F3/195 , H03F1/223 , H03F1/347 , H03F1/565 , H03F3/245 , H03F3/72 , H03F2200/294 , H03F2200/492 , H03F2200/537 , H03F2200/541 , H03F2203/7221 , H03H11/30 , H04B1/0458 , H04B1/18
摘要： An integrated circuit (202) for transmit and receive matching is described. The integrated circuit (202) includes a transmit amplifier (DA). The transmit amplifier (DA) includes a first transistor (250), a second transistor (248) and a first inductor (LI). The first inductor (LI) couples the first transistor (250) to the second transistor (248). The integrated circuit (202) also includes a low noise amplifier. The low noise amplifier includes a third transistor (254), a fourth transistor (252), the first inductor (LI), a second inductor (L2), a third inductor (L3) and a transformer (279). The second inductor (L2) couples the first inductor (LI) to the third transistor (254). The third inductor (L3) couples the third transistor (254) to ground.
摘要翻译：描述了用于发送和接收匹配的集成电路（202）。集成电路（202）包括发射放大器（DA）。发射放大器（DA）包括第一晶体管（250），第二晶体管（248）和第一电感器（LI）。第一电感器（LI）将第一晶体管（250）耦合到第二晶体管（248）。集成电路（202）还包括低噪声放大器。低噪声放大器包括第三晶体管（254），第四晶体管（252），第一电感器（LI），第二电感器（L2），第三电感器（L3）和变压器（279）。第二电感器（L2）将第一电感器（LI）耦合到第三晶体管（254）。第三电感器（L3）将第三晶体管（254）耦合到地。

3. 发明申请

WO2011003101A1 HIGH SPEED DIVIDE-BY-TWO CIRCUIT 审中-公开
标题翻译：高速双向电路
公开(公告)号：WO2011003101A1
公开(公告)日：2011-01-06
申请号：PCT/US2010/040979
申请日：2010-07-02
申请人： QUALCOMM INCORPORATED , CHAN, Ngar, Loong, Alan , WANG, Shen
发明人： CHAN, Ngar, Loong, Alan , WANG, Shen
IPC分类号： H03K3/356
CPC分类号： H03K3/35613
摘要： A high frequency divider (124) involves a plurality of differential latches (142,143). Each latch includes a pair of cross-coupled P-channel transistors (158,159 and 161,162) and a variable resistance element (163,164). The latch is controlled to have a lower output resistance at high operating frequencies by setting a multi-bit digital control value (CONTROLA) supplied to the variable resistance element. Controlling the latch to have a reduced output resistance at high frequencies allows the 3 dB bandwidth of the latch to be maintained over a wide operating frequency range. The variable resistance element is disposed between the two differential output nodes (146,147 or 152,153) of the latch such that appreciable DC bias current does not flow across the variable resistance element. As a consequence, good output signal voltage swing is maintained at high frequencies, and divider current consumption does not increase appreciably at high frequencies as compared to output signal swing degradation and current consumption increases in a conventional differential latch divider.
摘要翻译：高分频器（124）涉及多个差分锁存器（142,143）。每个锁存器包括一对交叉耦合的P沟道晶体管（158,159和161,162）和可变电阻元件（163,164）。通过设置提供给可变电阻元件的多位数字控制值（CONTROLA），锁存器被控制为在高工作频率下具有较低的输出电阻。控制锁存器在高频下具有降低的输出电阻允许在宽的工作频率范围内保持锁存器的3 dB带宽。可变电阻元件设置在闩锁的两个差分输出节点（146,147或152,153）之间，使得明显的直流偏置电流不流过可变电阻元件。因此，与传统的差分锁存器分频器中的输出信号摆幅下降和电流消耗增加相比，良好的输出信号电压摆幅保持在高频，并且分频器电流消耗在高频下不会明显增加。

4. 发明申请

WO2012154840A3 SYSTEM PROVIDING SWITCHABLE IMPEDANCE TRANSFORMER MATCHING FOR POWER AMPLIFIERS 审中-公开
标题翻译：系统为功率放大器提供可切换的阻抗变压器匹配
公开(公告)号：WO2012154840A3
公开(公告)日：2013-04-11
申请号：PCT/US2012037102
申请日：2012-05-09
申请人： QUALCOMM INC , CHAN NGAR LOONG ALAN
发明人： CHAN NGAR LOONG ALAN
IPC分类号： H03F1/02 , H03F3/189
CPC分类号： H03F1/0277 , H03F3/189
摘要： System providing switchable impedance transformer matching for power amplifiers. In an exemplary implementation, an amplifier providing switchable impedance matching includes an output inductor (L1) that is part of an output path of the amplifier and a first amplifier stage comprising a first inductor (L4) coupled to the output inductor, the first inductor configured to couple a signal amplified by the first amplifier stage at a first power level to the output inductor in response to a first enable signal. The amplifier also includes a second amplifier stage comprising a second inductor (L5) coupled to the output inductor, the second inductor configured to couple the signal amplified by the second amplifier stage at a second power level to the output inductor in response to a second enable signal.
摘要翻译：为功率放大器提供可切换阻抗变压器匹配系统。在示例性实现中，提供可切换阻抗匹配的放大器包括作为放大器的输出路径的一部分的输出电感器（L1）和包括耦合到输出电感器的第一电感器（L4）的第一放大器级，第一电感器被配置以响应于第一使能信号将由第一放大器级放大的信号以第一功率电平耦合到输出电感器。放大器还包括第二放大器级，其包括耦合到输出电感器的第二电感器（L5），第二电感器被配置为响应于第二使能而将第二功率电平放大的信号以第二功率电平耦合到输出电感器信号。

5. 发明申请

WO2010120938A2 LOW NOISE AMPLIFIER WITH COMBINED INPUT MATCHING, BALUN, AND TRANSMIT/RECEIVE SWITCH 审中-公开
标题翻译：具有组合输入匹配，BALUN和发射/接收开关的低噪声放大器
公开(公告)号：WO2010120938A2
公开(公告)日：2010-10-21
申请号：PCT/US2010031107
申请日：2010-04-14
申请人： QUALCOMM INC , CHAN NGAR LOONG ALAN , MIN BYUNG WOOK
发明人： CHAN NGAR LOONG ALAN , MIN BYUNG WOOK
IPC分类号： H03F3/45 , H03F1/56 , H03F3/00 , H03F3/195
CPC分类号： H03F1/565 , H03F3/195 , H03F3/245 , H03F3/45179 , H03F2203/45551 , H03H7/38 , H03H7/42
摘要： A low noise amplifier (LNA) with combined input matching, balun, and/or transmit/receive (T /K) switch is described. In one exemplary design, an apparatus includes a coupled inductor and an LNA. The coupled inductor receives a single-ended input signal, performs single-ended to differential conversion, and provides a differential input signal. The LNA receives and amplifies the differential input signal and provides a differential output signal. The coupled inductor includes magnetically coupled first and second coils. The first coil provides input impedance matching when the LNA is enabled. A resonator circuit formed with the first coil provides high input impedance when the LNA is disabled. A tuning capacitor coupled to the second coil provides amplitude imbalance tuning for the differential input signal. A transmit switch is coupled between the first coil and a transmitter.
摘要翻译：描述了具有组合输入匹配，平衡 - 不平衡变压器和/或发送/接收（T / K）开关的低噪声放大器（LNA）。在一个示例性设计中，装置包括耦合电感器和LNA。耦合电感接收单端输入信号，执行单端到差分转换，并提供差分输入信号。 LNA接收和放大差分输入信号并提供差分输出信号。耦合电感器包括磁耦合的第一和第二线圈。当LNA使能时，第一个线圈提供输入阻抗匹配。当LNA被禁用时，形成有第一线圈的谐振电路提供高输入阻抗。耦合到第二线圈的调谐电容为差分输入信号提供振幅不平衡调谐。发射开关耦合在第一线圈和发射器之间。

6. 发明申请

WO2011143504A8 AREA EFFICIENT CONCURRENT MATCHING TRANSCEIVER 审中-公开
标题翻译：区域有效的相互匹配收发器
公开(公告)号：WO2011143504A8
公开(公告)日：2012-06-21
申请号：PCT/US2011036353
申请日：2011-05-12
申请人： QUALCOMM INC , CHAN NGAR LOONG ALAN , CHOI JONGHOON , GUPTA BINDU
发明人： CHAN NGAR LOONG ALAN , CHOI JONGHOON , GUPTA BINDU
IPC分类号： H03F1/22 , H03F1/56 , H03F3/195 , H03F3/24 , H03F3/72 , H03H7/38 , H04B1/44 , H04B1/48
CPC分类号： H03F3/195 , H03F1/223 , H03F1/347 , H03F1/565 , H03F3/245 , H03F3/72 , H03F2200/294 , H03F2200/492 , H03F2200/537 , H03F2200/541 , H03F2203/7221 , H03H11/30 , H04B1/0458 , H04B1/18
摘要： An integrated circuit (202) for transmit and receive matching is described. The integrated circuit (202) includes a transmit amplifier (DA). The transmit amplifier (DA) includes a first transistor (250), a second transistor (248) and a first inductor (L1). The first inductor (L1) couples the first transistor (250) to the second transistor (248). The integrated circuit (202) also includes a low noise amplifier. The low noise amplifier includes a third transistor (254), a fourth transistor (252), the first inductor (L1), a second inductor (L2), a third inductor (L3) and a transformer (279). The second inductor (L2) couples the first inductor (L1) to the third transistor (254). The third inductor (L3) couples the third transistor (254) to ground.
摘要翻译：描述了用于发送和接收匹配的集成电路（202）。集成电路（202）包括发射放大器（DA）。发射放大器（DA）包括第一晶体管（250），第二晶体管（248）和第一电感器（L1）。第一电感器（L1）将第一晶体管（250）耦合到第二晶体管（248）。集成电路（202）还包括低噪声放大器。低噪声放大器包括第三晶体管（254），第四晶体管（252），第一电感器（L1），第二电感器（L2），第三电感器（L3）和变压器（279）。第二电感器（L2）将第一电感器（L1）耦合到第三晶体管（254）。第三电感器（L3）将第三晶体管（254）耦合到地。

7. 发明申请

WO2010120938A3 LOW NOISE AMPLIFIER WITH COMBINED INPUT MATCHING, BALUN, AND TRANSMIT/RECEIVE SWITCH 审中-公开
公开(公告)号：WO2010120938A3
公开(公告)日：2010-10-21
申请号：PCT/US2010/031107
申请日：2010-04-14
申请人： QUALCOMM INCORPORATED , CHAN, Ngar Loong Alan , MIN, Byung, Wook
发明人： CHAN, Ngar Loong Alan , MIN, Byung, Wook
IPC分类号： H03F3/45 , H03F1/56 , H03F3/00 , H03F3/195 , H03H7/42
摘要： The inventions relates basically a transmission line transformer (310), receiving a single-ended input signal (Vin) and providing a differential output signal (Vinp, Vinn), and a low noise amplifier (230b) that receives and amplifies the differential signal provided by the transmission line transformer. In a first aspect of the invention, the transformer (310) and the low noise amplifier (230b) are built on an integrated circuit. In a further aspect of the invention, two switchable capacitors (322, 332) are coupled in parallel to the coils (320, 330) forming part of the transformer (310), in order to obtain a switchable high input impedance. During a receive mode, the switches (324, 334) are open, thus the transformer (310) operates in the conventional manner. During a transmit mode, the switches (324, 334) are closed, thus the transformer (310) in conjunction with the capacitors (322, 332) operate like a resonant circuit that provides a high input impedance at the input node (X). As a result, the low noise amplifier (230b) is isolated from the signal input (X). In a further aspect of the invention, two switches (326, 336) are coupled between ground and the inputs of the low noise amplifier which switches may be additionally used for improving the signal isolation and to switch-off the amplifying transistors (350, 354, 360, 364) of the low noise amplifier. The arrangement may further comprise a switch (340) located between the input node (X) and a transmitter, wherein the switch is closed during a transmit mode and opened during a receive mode. In a further aspect of the invention, a tuning capacitor (338) is used to compensate for any amplitude mismatch between the output signals (Vinp, Vinn) of the transformer (310). In a further aspect of the invention, the low noise amplifier comprises two cascode stages (350, 354; 360, 364), each cascode stage comprising a source inductor (352, 362) and a load inductor (356, 366). In a further aspect of the invention, the coils (320, 330) of the transformer (310) are implemented in a spiral pattern.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式