Invention Grant
- Patent Title: Multiband transmitter efficiently implementing pre-distortion
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Application No.: US17895034Application Date: 2022-08-24
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Publication No.: US12323176B2Publication Date: 2025-06-03
- Inventor: Min Seon Yun , Joon Hyong Shim , Young Chan Moon
- Applicant: KMW INC.
- Applicant Address: KR Hwaseong-si
- Assignee: KMW INC.
- Current Assignee: KMW INC.
- Current Assignee Address: KR Hwaseong-si
- Agency: Insight Law Group, PLLC
- Agent Seung Lee
- Priority: KR10-2020-0023103 20200225
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H04B1/62

Abstract:
Disclosed is a multi-band transmitter for transmitting a multi-band signal. The multi-band transmitter comprises: a pre-distortion unit including a first digital pre-distorter (DPD) which pre-distorts a first band signal and a second DPD which pre-distorts a second band signal discontinuous from the first band signal; a conversion unit which analog-converts the pre-distorted first band signal and the pre-distorted second band signal; an amplification unit including a first power amplifier (PA), which amplifies the analog-converted first band signal, and a second PA, which amplifies the analog-converted second band signal; and a feedback unit which digital-converts the amplified first band signal to feed the digital-converted first band signal back to the first DPD and digital-converts the amplified second band signal to feed the digital-converted second band signal back to the second DPD. The pre-distortion unit performs pre-distortion by using the fed-back first band signal and the fed-back second band signal.
Public/Granted literature
- US20220416826A1 MULTI-BAND TRANSMITTER Public/Granted day:2022-12-29
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