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51.发明公开公开(公告)号：US20230253991A1
公开(公告)日：2023-08-10
申请号：US18163184
申请日：2023-02-01
CPC分类号： H04B1/006 , H04B1/1607 , H04B1/18
摘要： A device may include an input port configured to receive the RF signal, the input port being positioned on a first side of the RF switching circuit; a control port configured to receive a control signal indicating a trace through which the RF signal is routed, the control port being positioned on a second side of the RF switching circuit opposite to the first side. The device may further include a plurality of switching pins configured to be coupled to a plurality of traces, a first half of the plurality of switching pins being positioned on one adjacent side of the RF input, and a second half of the plurality of switching pins being positioned on the other adjacent side of the RF input. The device may also include a controller configured to route the RF signal according to the control signal by reference to a truth table.
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公开(公告)号：US20230038733A1
公开(公告)日：2023-02-09
申请号：US17817453
申请日：2022-08-04
摘要： Radio frequency (RF) front ends with integrated channel matching calibration are provided herein. In one aspect, a front end system includes: a plurality of front end amplification chains including transmit and receive chains for at least two radio frequency bands, each of the front end amplification chains configured to either transmit or receive radio frequency signals via one of a plurality of antennas, and each of the front end amplification chains includes an amplifier configured to receive a bias current and amplify the corresponding radio frequency signal based on the bias current, a control circuit configured to generate each of the bias currents, and a multiplexor configured to receive the bias currents and provide the bias currents to the corresponding amplifiers.
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公开(公告)号：US11539288B2
公开(公告)日：2022-12-27
申请号：US16594890
申请日：2019-10-07
发明人： Bo Zhou , Guillaume Alexandre Blin
摘要： Devices and methods for operating a charge pump. In some implementations, a charge pump module includes a clock circuit configured generate to a first clock signal and a second clock signal, the first clock signal having a lower frequency than the second clock signal. The charge pump module also includes a driving circuit configured to generate a first set of clock signals based on the first clock signal and a second set of clock signals based on the second clock signal, the driving circuit coupled to the clock circuit. The charge pump module further includes a charge pump core including a set of capacitances, the charge pump core configured to charge the set of capacitances based the first set of clock signals and the second set of clock signals.
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公开(公告)号：US20220345172A1
公开(公告)日：2022-10-27
申请号：US17659996
申请日：2022-04-20
IPC分类号： H04B1/44 , H04B1/00 , H04B7/0413
摘要： Apparatus and methods for antenna arrays for beamforming are disclosed. In certain embodiments, a mobile device includes a front-end system including a plurality of radio frequency signal conditioning circuits, an antenna array including a plurality of controllable antennas each connected to a corresponding one of the plurality of radio frequency signal conditioning circuits, and a control circuit. The plurality of controllable antennas include a first controllable antenna including a plurality of antenna elements interconnected by a plurality of variable resistors. Additionally, the control circuit is configured to control the plurality of variable resistors to control an antenna characteristic of the first controllable antenna.
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公开(公告)号：US20220344801A1
公开(公告)日：2022-10-27
申请号：US17659083
申请日：2022-04-13
摘要： Apparatus and methods for electrically adjustable antenna stencils for controlling antenna pattern for beamforming are provided. In certain embodiments, a mobile device includes a front-end system including a plurality of radio frequency signal conditioning circuits, an antenna array including a plurality of electrically-adjustable stencils each connected to a corresponding one of the plurality of radio frequency signal conditioning circuits, and a control circuit configured to control the plurality of electrically-adjustable stencils to control an antenna pattern of the antenna array.
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公开(公告)号：US20220247359A1
公开(公告)日：2022-08-04
申请号：US17659870
申请日：2022-04-20
发明人： Douglas M. Johnson , Guillaume Alexandre Blin , Michael John Mitzen , Jung Hee Lee , Weize Xu , Attila Kalamar
摘要： Examples provide methods and apparatus for controlling a DC bias current in an RF amplifier. In one example where the RF amplifier is implemented on an amplifier die, a reference voltage is produced across a reference resistor implemented on the amplifier die, the DC bias current is measured, and a current controller, which is implemented on a controller die that is separate from the amplifier die, operates a feedback loop using the reference voltage to control a level of the DC bias current.
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公开(公告)号：US11314685B2
公开(公告)日：2022-04-26
申请号：US17249108
申请日：2021-02-19
摘要： Low noise serial interfaces with gated clock are provided herein. In certain configurations herein, a slave device of a serial interface includes a shift register for serially shifting in an interface data signal based on timing of an interface clock signal, a control circuit (for instance, a finite-state machine) for controlling the slave device, and a register bank for storing data programmed to the slave device via the serial interface. The control circuit cuts off or gates the interface clock signal in response to determining that an interface command received over the serial interface is not intended for the slave device.
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公开(公告)号：US11159158B2
公开(公告)日：2021-10-26
申请号：US16746733
申请日：2020-01-17
IPC分类号： H03K17/687 , H01L27/12 , H01L27/02 , H03K17/693 , H01L29/786 , H03K17/10 , H01L23/66
摘要： A radio-frequency module includes a pole node, a throw node connected to the pole node via a radio-frequency signal path, the radio-frequency signal path including first, second, third and fourth field-effect transistors connected in series, each of the first, second, third and fourth field-effect transistors having a gate, a first coupling path coupling the gate of the first field-effect transistor to the gate of the second field-effect transistor, a second coupling path coupling the gate of the third field-effect transistor to the gate of the fourth field-effect transistor, and a third coupling path coupling the first coupling path to the second coupling path.
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公开(公告)号：US11115015B2
公开(公告)日：2021-09-07
申请号：US16694142
申请日：2019-11-25
发明人： Bo Zhou , Guillaume Alexandre Blin
IPC分类号： H03K5/24 , G06F13/00 , H03K19/0175 , H04B1/38
摘要： A circuit component has an address determined from a voltage level applied to a single electrical contact of the circuit component. The circuit component is configured to be assigned one of at least three unique addresses and to select from among the at least three unique addresses based on the voltage level.
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公开(公告)号：US20210218433A1
公开(公告)日：2021-07-15
申请号：US17247889
申请日：2020-12-29
摘要： Cascode power amplifier bias circuits suitable for operating across multiple power supply domains are provided. In certain embodiments, a power amplifier system includes a cascode power amplifier and a multi-domain bias circuit that generates at least a first cascode bias voltage for the cascode power amplifier. The multi-domain bias circuit includes a coarse regulator that generates a regulated voltage based on a power supply voltage that is operable with multiple voltage levels associated with different power supply domains, a bandgap reference circuit that is powered by the regulated voltage and outputs a bandgap reference voltage, a bias voltage generator that generates multiple selectable bias voltages based on the bandgap reference voltage, and a bias voltage selector that chooses the first cascode bias voltage from amongst the selectable bias voltages.
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