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1.发明公开HYBRID TRANSFORMER BASED INTEGRATED DUPLEXER FOR MULTI-BAND/MULTI-MODE RADIO FREQUENCY (RF) FRONT END 审中-公开- 基于集成双面打印多频段/多模射频前端混合变压器
公开(公告)号：EP2831997A1
公开(公告)日：2015-02-04
申请号：EP13719640.8
申请日：2013-03-30
发明人： CHOKSI, Ojas M.
摘要： An integrated duplexer based on electrical balance is described. The duplexer module includes a hybrid transformer. The hybrid transformer includes a primary coil and a secondary coil. The primary coil is coupled between an output of a power amplifier and an antenna. The secondary coil is coupled between an input of a low noise amplifier and ground. The duplexer also includes a balancing impedance that is coupled between the primary coil and the secondary coil.
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公开(公告)号：EP2936678A1
公开(公告)日：2015-10-28
申请号：EP13818934.5
申请日：2013-12-19
发明人： KHATRI, Himanshu , CHOKSI, Ojas M. , ZHUO, Wei
摘要： Exemplary embodiments are directed to providing electrostatic discharge (ESD) protection of a cascode device of an amplifier. In an exemplary embodiment, a transistor is configured to receive a bias voltage and at least one circuit element coupled to the transistor and configured to receive an input voltage via an input pad. Additionally at least one diode can be coupled to a drain of the first transistor and configured to limit a voltage potential at an internal node of the amplifier caused by the input pad.
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公开(公告)号：EP2823569A1
公开(公告)日：2015-01-14
申请号：EP13711795.8
申请日：2013-03-07
IPC分类号： H04B1/18
CPC分类号： H04B1/18
摘要： A receiver is described. The receiver includes a first amplifier on an integrated circuit. The receiver also includes a second amplifier on the integrated circuit. The receiver further includes a first inductor coupled to the first amplifier. The receiver also includes a second inductor coupled to the second amplifier. The receiver further includes a first capacitor coupled to the first inductor, the second inductor, and to ground. The first capacitor is shared between a first matching network for the first amplifier and a second matching network for the second amplifier.
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公开(公告)号：EP2823569B1
公开(公告)日：2018-09-19
申请号：EP13711795.8
申请日：2013-03-07
IPC分类号： H04B1/18
CPC分类号： H04B1/18
摘要： A receiver is described. The receiver includes a first amplifier on an integrated circuit. The receiver also includes a second amplifier on the integrated circuit. The receiver further includes a first inductor coupled to the first amplifier. The receiver also includes a second inductor coupled to the second amplifier. The receiver further includes a first capacitor coupled to the first inductor, the second inductor, and to ground. The first capacitor is shared between a first matching network for the first amplifier and a second matching network for the second amplifier.
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公开(公告)号：EP2912770A1
公开(公告)日：2015-09-02
申请号：EP13788823.6
申请日：2013-10-22
发明人： KHATRI, Himanshu , CHOKSI, Ojas M. , ZHUO, Wei
CPC分类号： H03F3/72 , H03F1/0277 , H03F1/223 , H03F3/195 , H03F3/211 , H03F2200/111 , H03F2200/294 , H03F2200/429 , H03F2203/21109 , H03F2203/7209 , H03F2203/7215 , H03F2203/7236 , H03F2203/7239 , H03G3/3052
摘要： Amplifiers with shunt switches to mitigate interference are disclosed. In an exemplary design, an apparatus includes an amplifier and a shunt switch. The amplifier has an input operatively coupled to an input/output (I/O) pad of an integrated circuit (IC) chip. The shunt switch grounds the amplifier when the shunt switch is closed. The shunt switch is isolated from the I/O pad and the amplifier input. The amplifier may be a low noise amplifier (LNA) or some other type of amplifier. In an exemplary design, the shunt switch is isolated from the I/O pad by a series switch. The series switch and the shunt switch may be closed when the amplifier is disabled and may be opened when the amplifier is enabled.
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