Transmit (tx) receive (rx) phased array system
US-2024322795-A1 · Sep 26, 2024 · US
System and method for digital memorized predistortion for wireless communication
US2021314210A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021314210-A1 |
| Application number | US-202117234482-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 19, 2021 |
| Priority date | May 1, 2002 |
| Publication date | Oct 7, 2021 |
| Grant date | — |
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- Title
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Abstract
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A power amplifier system includes an input operable to receive an original value that reflects information to be communicated and an address data former operable to generate a digital lookup table key. The power amplifier system also includes a predistortion lookup table coupled to the address data former and a power amplifier having an output and coupled to the predistortion lookup table. The power amplifier system further includes a feedback loop providing a signal associated with the output of the power amplifier to the predistortion lookup table and a switch disposed in the feedback loop and operable to disconnect the predistortion lookup table from the output of the power amplifier.
First claim
Opening claim text (preview).
What is claimed is: 1 . A power amplifier system comprising: an input operable to receive a signal that reflects information to be communicated; an address data former operable to generate a digital lookup table key; a predistortion lookup table coupled to the address data former; a power amplifier having an output and an input, wherein the input to the power amplifier is coupled to the predistortion lookup table; a feedback signal representing the output of the power amplifier; and a switch coupled to the feedback signal and the predistortion lookup table, wherein the switch is configured to disconnect the feedback signal from the predistortion lookup table.
Assignees
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Classifications
- H03F3/24Primary
of transmitter output stages · CPC title
Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion · CPC title
A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit · CPC title
Adaptive predistortion based on amplitude, envelope or power level feedback from the output of the main amplifier · CPC title
using AGC [Automatic Gain Control] circuits or amplifiers · CPC title
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- What does patent US2021314210A1 cover?
- A power amplifier system includes an input operable to receive an original value that reflects information to be communicated and an address data former operable to generate a digital lookup table key. The power amplifier system also includes a predistortion lookup table coupled to the address data former and a power amplifier having an output and coupled to the predistortion lookup table. The …
- Who is the assignee on this patent?
- Dali Wireless Inc
- What technology area does this patent fall under?
- Primary CPC classification H03F3/24. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Oct 07 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).