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公开(公告)号：US20230370029A1
公开(公告)日：2023-11-16
申请号：US18359718
申请日：2023-07-26
发明人： William Roeckner , Terrie McCain , Matthew Miller
CPC分类号： H03F3/245 , H03F1/56 , H03G3/3036 , H03F2200/294 , H03F2200/451 , H03F2200/255 , H03G2201/103 , H03G2201/307
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a programmable input impedance circuit for a radio frequency (RF) low noise amplifier (LNA) including a high impedance mode circuit and a low impedance mode circuit. The high impedance mode circuit includes an inductor-degenerated transconductor transistor, an inductor selectively coupled between a source of the inductor-degenerated transconductor transistor and a ground, and a capacitor coupled between a gate of the inductor-degenerated transconductor transistor and the source of the inductor-degenerated transconductor transistor. The low impedance mode circuit includes a shunt resistor selectively coupled between an RF input source and an alternating current (AC) ground.
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公开(公告)号：US11606069B2
公开(公告)日：2023-03-14
申请号：US17100502
申请日：2020-11-20
发明人： Wenrong Ying , Terrie McCain , William Roeckner
摘要： The present disclosure relates to single-ended-to-differential amplifiers and radio frequency receivers. One example single-ended-to-differential amplifier includes a first inverting amplifier, a second inverting amplifier, and a third inverting amplifier. Both an input end of the first inverting amplifier and an input end of the second inverting amplifier are coupled to an input end of the single-ended-to-differential amplifier, an output end of the first inverting amplifier is coupled to an input end of the third inverting amplifier, an output end of the second inverting amplifier is coupled to a first output end of the single-ended-to-differential amplifier, and an output end of the third inverting amplifier is coupled to a second output end of the single-ended-to-differential amplifier. An impedance element is coupled between the input end of the first inverting amplifier and the output end of the first inverting amplifier.
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公开(公告)号：US20230361797A1
公开(公告)日：2023-11-09
申请号：US18352426
申请日：2023-07-14
IPC分类号： H04B1/16
CPC分类号： H04B1/1638
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a radio frequency (RF) receiver including a dual-mode low noise amplifier (LNA). One of the methods includes configuring the RF receiver to a wideband mode including operation over a multiple receive frequency (RX) bands including multiple frequencies, receiving, by the RF receiver, an input RF signal, scanning the multiple frequencies to detect a transmitted frequency of the input RF signal, configuring the RF receiver to narrowband mode including operation over a proper subset of the RX bands including a proper subset of the multiple frequencies, and tuning the RF receiver to the transmitted frequency.
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公开(公告)号：US20240154585A1
公开(公告)日：2024-05-09
申请号：US18412135
申请日：2024-01-12
发明人： William Roeckner , Terrie McCain , Matthew Miller
IPC分类号： H03F3/193
CPC分类号： H03F3/193 , H03F2200/09 , H03F2200/294 , H03F2200/451
摘要： An active balun amplifier includes a first plurality of metal oxide semiconductor (MOS) transistors arranged in series, the first plurality of MOS transistors comprising a first input transistor of a first conductivity type, a second input transistor of a second conductivity type, and at least two common-gate transistors arranged in series between the first input transistor and the second input transistor, wherein a gate of the first input transistor and a gate of the second input transistor are tied to a common input, a second plurality of MOS transistors arranged in series, the second plurality of MOS transistors comprising a first common-source transistor of the first conductivity type, a second common-source transistor of the second conductivity type, and at least two cascode transistors arranged in series between the first common-source transistor and the second common-source transistor.
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公开(公告)号：US20230370025A1
公开(公告)日：2023-11-16
申请号：US18359752
申请日：2023-07-26
发明人： Terrie McCain , William Roeckner , Matthew Miller
CPC分类号： H03F3/195 , H03F1/223 , H03F2200/294 , H03F2200/451
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a tunable radio frequency (RF) low noise amplifier (LNA) circuit including an amplifier circuit, where the amplifier circuit is configured to receive an input RF signal from an RF input source and provide an amplified output RF signal, a bias resistor, where a first end of the bias resistor is operatively coupled to an input of the amplifier circuit, a digitally programmable bias circuit operatively coupled to a second end of the bias resistor, where the bias circuit outputs a reference voltage, and a programmable input impedance circuit operatively coupled between the first end of the bias resistor and a ground. The programmable input impedance circuit includes an input transconductor transistor and a programmable inductance network.
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公开(公告)号：US20230370030A1
公开(公告)日：2023-11-16
申请号：US18359738
申请日：2023-07-26
发明人： William Roeckner , Terrie McCain , Matthew Miller
CPC分类号： H03F3/245 , H03F1/56 , H03F2200/294 , H03F2200/451 , H03F2200/255 , H03F2200/213
摘要： Methods, systems, and apparatus, including computer programs encoded on computer storage media, for radio frequency (RF) low noise amplifier (LNA) circuit configured to receive an input RF signal from an RF input source and provide an amplified output RF signal, where the RF LNA circuit includes an amplifier circuit, where the amplifier circuit is configured to receive the input RF signal and provide the amplified output RF signal, and an inductor-degenerated transconductor input impedance circuit that is separate from the amplifier circuit and that is operatively coupled to the input of the amplifier circuit.
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