公开(公告)号：US20210184709A1

公开(公告)日：2021-06-17

申请号：US16716782

申请日：2019-12-17

Applicant: Motorola Solutions, Inc.

Inventor： Anders Stensgaard Larsen ,  Mitchell R. Blozinski ,  Daniel Studer

IPC: H04B1/04 ,  H03K17/56 ,  H03F3/21

Abstract: Apparatus and methods for providing hot-switching immunity for radio frequency switching circuits are disclosed. A radio frequency switching circuit may include both a mechanical switch and a solid-state switch. The mechanical switch may be configurable to couple an output path of a power amplifier to a subsequent component in its transmission path when in a first mechanical switch state and to decouple the output path of the power amplifier from the subsequent component when in a second mechanical switch state. The solid-state switch may be configurable to operatively decouple the mechanical switch from a radio frequency power source when in a first solid-state switch state but not when in a second solid-state switch state. The solid-state switch may be in the first solid-state switch state during transitions of the mechanical switch between the first and second mechanical switch states.

公开(公告)号：US11165452B2

公开(公告)日：2021-11-02

申请号：US16716782

申请日：2019-12-17

Applicant: Motorola Solutions, Inc.

Inventor： Anders Stensgaard Larsen ,  Mitchell R. Blozinski ,  Daniel Studer

IPC: H04B1/04 ,  H03F3/21 ,  H03K17/56

Abstract: Apparatus and methods for providing hot-switching immunity for radio frequency switching circuits are disclosed. A radio frequency switching circuit may include both a mechanical switch and a solid-state switch. The mechanical switch may be configurable to couple an output path of a power amplifier to a subsequent component in its transmission path when in a first mechanical switch state and to decouple the output path of the power amplifier from the subsequent component when in a second mechanical switch state. The solid-state switch may be configurable to operatively decouple the mechanical switch from a radio frequency power source when in a first solid-state switch state but not when in a second solid-state switch state. The solid-state switch may be in the first solid-state switch state during transitions of the mechanical switch between the first and second mechanical switch states.

公开(公告)号：US10658982B1

公开(公告)日：2020-05-19

申请号：US16231306

申请日：2018-12-21

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Dennis M. Drees ,  Mitchell R. Blozinski ,  Rodney W. Hagen

IPC: H03F1/14 ,  H03F1/02 ,  H04B1/04 ,  H03F3/24 ,  H03F1/32

Abstract: Apparatus and method for dynamically linearizing multi-carrier power amplifiers. In one example, the method includes storing a correction set including a plurality of correction solutions and loading the correction set into an RF power amplifier linearizer. The method includes determining a first carrier configuration of an RF transmitter during a first timeslot of operation of the RF transmitter and sending a first correction solution index to the RF power amplifier linearizer. The first correction solution index corresponds to a first correction solution of the plurality of correction solutions. The method also includes determining that a carrier configuration change is initiated to operate the RF transmitter with a second carrier configuration during a second timeslot of operation of the RF transmitter and sending a second correction solution index to the RF power amplifier linearizer. The second correction solution index corresponds to a second correction solution of the plurality of correction solutions.

公开(公告)号：US11489548B2

公开(公告)日：2022-11-01

申请号：US17472064

申请日：2021-09-10

Applicant: Motorola Solutions, Inc

Inventor： Anders Stensgaard Larsen ,  Mitchell R. Blozinski ,  Daniel Studer

IPC: H04B1/04 ,  H03F3/21 ,  H03K17/56

Abstract: Apparatus and methods for providing hot-switching immunity for radio frequency switching circuits are disclosed. A radio frequency switching circuit may include both a mechanical switch and a solid-state switch. The mechanical switch may be configurable to couple an output path of a power amplifier to a subsequent component in its transmission path when in a first mechanical switch state and to decouple the output path of the power amplifier from the subsequent component when in a second mechanical switch state. The solid-state switch may be configurable to operatively decouple the mechanical switch from a radio frequency power source when in a first solid-state switch state but not when in a second solid-state switch state. The solid-state switch may be in the first solid-state switch state during transitions of the mechanical switch between the first and second mechanical switch states.

公开(公告)号：US20210409044A1

公开(公告)日：2021-12-30

申请号：US17472064

申请日：2021-09-10

Applicant: Motorola Solutions, Inc

Inventor： Anders Stensgaard Larsen ,  Mitchell R. Blozinski ,  Daniel Studer

IPC: H04B1/04 ,  H03F3/21 ,  H03K17/56

Abstract: Apparatus and methods for providing hot-switching immunity for radio frequency switching circuits are disclosed. A radio frequency switching circuit may include both a mechanical switch and a solid-state switch. The mechanical switch may be configurable to couple an output path of a power amplifier to a subsequent component in its transmission path when in a first mechanical switch state and to decouple the output path of the power amplifier from the subsequent component when in a second mechanical switch state. The solid-state switch may be configurable to operatively decouple the mechanical switch from a radio frequency power source when in a first solid-state switch state but not when in a second solid-state switch state. The solid-state switch may be in the first solid-state switch state during transitions of the mechanical switch between the first and second mechanical switch states.

公开(公告)号：US10763791B2

公开(公告)日：2020-09-01

申请号：US16231353

申请日：2018-12-21

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Rodney W. Hagen ,  Mitchell R. Blozinski ,  Dennis M. Drees

IPC: H03F1/14 ,  H03F1/02 ,  H03F1/32 ,  H04B1/04 ,  H03F3/24

Abstract: Apparatus and method for selective linearization of scalable fault tolerant frequency agile transmitters. In one embodiment, the method includes receiving timestamped carrier configurations and segmenting the timestamped carrier configurations into time segments having a pre-determined time length. The method also includes determining composite carrier configuration in a present time segment for a predetermined number of future time segments and determining a correction solution of a plurality of correction solutions associated with the composite carrier configuration in a mapping of a plurality of carrier configurations and the plurality of correction solutions. The method includes providing the correction solution to a linearizer of at least one of a plurality of multi-carrier power amplifiers. The plurality of power amplifiers are provided in one or more banks of multi-carrier power amplifiers.