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1. 发明申请

WO2012099768A1 SELF-BIASING RADIO FREQUENCY CIRCUITRY 审中-公开
标题翻译：自偏式无线电频率电路
公开(公告)号：WO2012099768A1
公开(公告)日：2012-07-26
申请号：PCT/US2012/021032
申请日：2012-01-12
申请人： MARVELL WORLD TRADE LTD. , PARK, Jinho , LU, Yuan , LIN, Li
发明人： PARK, Jinho , LU, Yuan , LIN, Li
IPC分类号： H03F3/30 , H03F1/08 , H03F1/02 , H03F3/195
CPC分类号： H03F3/3016 , H03F1/0272 , H03F1/083 , H03F3/195 , H03F3/3028 , H03F2200/294 , H03F2203/30021 , H03F2203/30027 , H03F2203/30031 , H03F2203/30033 , H03F2203/30036 , H03F2203/30084 , H03F2203/30117
摘要： The present disclosure describes self -biasing radio frequency circuitry. In some aspects a radio frequency (RF) signal is amplified via a circuit having a first transistor (314) configured to source current to an output (304) of the circuit and a second transistor (320) configured to sink current from the output (304) of the circuit, and another signal is provided, without active circuitry, from the output (304) of the circuit to a gate of the first transistor (314) effective to bias a voltage at the output of the circuit. By so doing, the output (304) of the circuit can be biased without active circuitry which can reduce design complexity of and substrate area consumed by the circuit.
摘要翻译：本公开描述了自偏式射频电路。在一些方面，射频（RF）信号经由具有被配置为将电流源电流馈送到电路的输出（304）的电路放大，以及第二晶体管（320），其被配置为从输出（ 304），并且没有有源电路的另一信号从电路的输出（304）提供到第一晶体管（314）的栅极，其有效地偏置电路输出处的电压。通过这样做，电路的输出（304）可以没有有源电路被偏置，这可以降低电路消耗的设计复杂度和衬底面积。

2. 发明申请

WO2011146346A1 RF FRONT-END WITH INTEGRATED T/R SWITCH 审中-公开
标题翻译：具有集成T / R开关的RF前端
公开(公告)号：WO2011146346A1
公开(公告)日：2011-11-24
申请号：PCT/US2011/036520
申请日：2011-05-13
申请人： MARVELL WORLD TRADE LTD , LU, Yuan , WINOTO, Renaldi , PARK, Jinho , LIN, Li , CHEN, Xinhua , HE, Ming , SIGNOFF, David , LOEB, Wayne
发明人： LU, Yuan , WINOTO, Renaldi , PARK, Jinho , LIN, Li , CHEN, Xinhua , HE, Ming , SIGNOFF, David , LOEB, Wayne
IPC分类号： H04B1/44
CPC分类号： H04B1/48 , H04B1/18
摘要： Disclosed is a transmit/receive circuit arrangement wherein a transceiver circuit including a transmit/receive switch is fabricated on an integrated circuit chip. A matching network is wholly disposed off-chip relative to the integrated circuit chip. In embodiments, at least a portion of the matching network is formed off-chip and a portion of the matching network is formed on-chip.
摘要翻译：公开了一种发射/接收电路装置，其中在集成电路芯片上制造包括发射/接收开关的收发器电路。匹配网络相对于集成电路芯片完全设置在片外。在实施例中，匹配网络的至少一部分形成在片外，匹配网络的一部分形成在芯片上。

3. 发明申请

WO2012078432A1 RF PEAK DETECTION SCHEME USING BASEBAND CIRCUITS 审中-公开
标题翻译：使用基带电路的RF峰值检测方案
公开(公告)号：WO2012078432A1
公开(公告)日：2012-06-14
申请号：PCT/US2011/062703
申请日：2011-11-30
申请人： MARVELL WORLD TRADE LTD , WINOTO, Renaldi , PARK, Jinho
发明人： WINOTO, Renaldi , PARK, Jinho
IPC分类号： H04B1/06
CPC分类号： H04B17/0062 , H03G3/3068 , H04B1/10 , H04B17/21
摘要： A receiver includes an antenna configured to receive a set of RF signals, and a low-noise amplifier (LNA) coupled to the antenna and amplify the set of RF signals to generate a set of amplified signals. The receiver further includes a down-conversion mixer configured to down convert the set of amplified signals to baseband frequencies. The receiver further includes a low-pass filter configured to filter from the set of amplified signals to baseband frequencies an out-of-band signal. The receiver further includes a high-pass filter configured to reverse the filtering of the low-pass filter. The receiver further includes a peak detector configured to determine whether the LNA is operating at saturation; and an automatic-gain controller configured to decrease a gain of the LNA based on the determination of the peak detector.
摘要翻译：接收机包括被配置为接收一组RF信号的天线以及耦合到天线的低噪声放大器（LNA），并放大该RF信号集合以产生一组放大信号。接收机还包括一个下变频混频器，配置成将放大信号的集合下变频为基带频率。所述接收器还包括低通滤波器，其被配置为从所述放大信号集合过滤到基带频率的带外信号。接收机还包括被配置为反转低通滤波器的滤波的高通滤波器。接收器还包括配置成确定LNA是否工作在饱和状态的峰值检测器; 以及自动增益控制器，被配置为基于峰值检测器的确定来降低LNA的增益。

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