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1. 发明授权

US09774303B1 Low-noise amplifier for intra-band non contiguous carrier agregation 有权
公开(公告)号：US09774303B1
公开(公告)日：2017-09-26
申请号：US15246977
申请日：2016-08-25
申请人： Marvell International Ltd.
发明人： Emre Ayranci , Marco Garampazzi , Shahrzad Tadjpour
IPC分类号： H03F1/56 , H03F3/193 , H04B1/10
CPC分类号： H03F1/56 , H03F1/223 , H03F1/565 , H03F3/193 , H03F3/245 , H03F3/265 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/222 , H03F2200/294 , H03F2200/378 , H03F2200/451 , H03F2200/492 , H03F2203/7209 , H04B1/10
摘要： A low noise amplifier (LNA) system for amplifying a plurality of carriers includes a first amplifier circuit that generates a first radio-frequency (RF) output signal by amplifying a first input RF signal corresponding to a first frequency band, the first amplifier circuit having a first input impedance, and a second amplifier circuit that generates a second RF output signal by amplifying the first input RF signal when the system is in a first multi-output mode, a second input impedance of the second amplifier having a first impedance value when the system is in the first multi-output mode. The LNA system further includes a first impedance controller that maintains the second input impedance of the second amplifier circuit at a second impedance value when the apparatus is in a mode other than the first multi-output mode. The second impedance value is substantially the same as the first impedance value.

2. 发明授权

US09490745B1 Voltage-controlled oscillator 有权
标题翻译：压控振荡器
公开(公告)号：US09490745B1
公开(公告)日：2016-11-08
申请号：US14602081
申请日：2015-01-21
申请人： Marvell International Ltd.
发明人： Stefano Dal Toso , Rinaldo Castello , Marco Garampazzi , Paulo Mateus Mendes , Nicola Codega , Danilo Manstretta
IPC分类号： H03B5/12
CPC分类号： H03B5/1296 , H03B5/1212 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B2200/0054
摘要： A voltage-controlled oscillator comprises a tank circuit and first and second pairs of transistors. Each transistor comprises a gate, a drain, and a source. The drains of the first pair are coupled to the tank circuit and the gates of the first pair are cross-coupled with the drains of the first pair. The drains of the second pair are coupled to the tank circuit and the gates of the second pair are cross-coupled with the drains of the second pair. The oscillator includes a first resonant filter comprising a first terminal coupled to the sources of the first pair and a second resonant filter comprising a first terminal coupled to the sources of the second pair. A method includes adjusting capacitance in a resonant filter to cause the resonant filter to resonate based on a selected frequency.
摘要翻译：压控振荡器包括储能电路和第一和第二对晶体管。每个晶体管包括栅极，漏极和源极。第一对的排水管连接到油箱回路，第一对的排水口与第一对的排水管交叉耦合。第二对的排水管连接到油箱回路，第二对的排水口与第二对的排水管交叉耦合。振荡器包括第一谐振滤波器，其包括耦合到第一对的源极的第一端子和包括耦合到第二对的源极的第一端子的第二谐振滤波器。一种方法包括调整谐振滤波器中的电容，以使得谐振滤波器基于所选择的频率而谐振。

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