Yunfang Bai

Person

Tianjin, CN

People

Patents Grantslast 30 patents

Information Patent Grant
3 DB orthogonal hybrid coupler, radio-frequency front-end module an...
- Patent number 12,362,452
- Issue date Jul 15, 2025
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Gang Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Radio frequency power amplifier, chip, and communication terminal
- Patent number 12,255,590
- Issue date Mar 18, 2025
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin Zhao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Serial communication apparatus for unidirectional communication bet...
- Patent number 11,442,888
- Issue date Sep 13, 2022
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Qihua Zhang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Radio frequency power amplifier based on power detection feedback,...
- Patent number 11,323,074
- Issue date May 3, 2022
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin Zhao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radio frequency transistor for improving radio frequency switch per...
- Patent number 11,302,625
- Issue date Apr 12, 2022
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Guanjian Xu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Radio frequency front-end transmission module, chip, and communicat...
- Patent number 11,277,165
- Issue date Mar 15, 2022
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Anti-electromagnetic interference radio frequency module and implem...
- Patent number 11,264,335
- Issue date Mar 1, 2022
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Fujuan Jin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Radio frequency power amplifier based on current detection feedback...
- Patent number 11,177,781
- Issue date Nov 16, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin Zhao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage equalization method for use in radiofrequency switch having...
- Patent number 11,146,259
- Issue date Oct 12, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Radio frequency power amplifier module having high linearity and po...
- Patent number 11,133,786
- Issue date Sep 28, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Gang Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multimode and multi-frequency radio frequency front end module, chi...
- Patent number 11,115,071
- Issue date Sep 7, 2021
- SHANGHAI VANCHIP TECHNOLOGIES CO., LTD.
- Hao Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio frequency power amplifier for inhibiting harmonic wave and st...
- Patent number 10,879,850
- Issue date Dec 29, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin Zhao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multimode power amplifier module, chip and communication terminal
- Patent number 10,637,407
- Issue date Apr 28, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multimode power amplifier and method of switching among multiple mo...
- Patent number 9,667,205
- Issue date May 30, 2017
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
BALANCED RADIO FREQUENCY POWER AMPLIFIER, RADIO FREQUENCY FRONT-END...
- Publication number 20250167744
- Publication date May 22, 2025
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Gang CHEN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
HIGH-BANDWIDTH LOAD-MODULATION POWER AMPLIFIER AND CORRESPONDING RA...
- Publication number 20240243710
- Publication date Jul 18, 2024
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD.
- Gang CHEN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ELECTROMAGNETIC SHIELDING STRUCTURE, MANUFACTURING METHOD, AND COMM...
- Publication number 20240234337
- Publication date Jul 11, 2024
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Ying YU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWER DETECTION CIRCUIT HAVING TEMPERATURE COMPENSATION FUNCTION, A...
- Publication number 20240230734
- Publication date Jul 11, 2024
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Hao LI
- G01 - MEASURING TESTING
Information Patent Application
RADIO FREQUENCY FRONT-END MODULE HAVING CURRENT PROTECTION FUNCTION...
- Publication number 20240235496
- Publication date Jul 11, 2024
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Hao LI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY FRONT-END MODULE AND CORRESPONDING RADIO FREQUENCY...
- Publication number 20240146260
- Publication date May 2, 2024
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD.
- Hao LI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER THAT REDUCES LOAD CHANGE SENSITIVIT...
- Publication number 20230336134
- Publication date Oct 19, 2023
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Haihui LI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER, RADIO FREQUENCY FRONT-END MODULE,...
- Publication number 20230105134
- Publication date Apr 6, 2023
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Hao LI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
3 DB ORTHOGONAL HYBRID COUPLER, RADIO-FREQUENCY FRONT-END MODULE AN...
- Publication number 20230100717
- Publication date Mar 30, 2023
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Gang CHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RADIO-FREQUENCY POWER AMPLIFIER, RADIO-FREQUENCY FRONT-END MODULE A...
- Publication number 20230098158
- Publication date Mar 30, 2023
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Hao LI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER, CHIP, AND COMMUNICATION TERMINAL
- Publication number 20220278659
- Publication date Sep 1, 2022
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin ZHAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VOLTAGE EQUALIZATION METHOD FOR USE IN RADIOFREQUENCY SWITCH HAVING...
- Publication number 20210135665
- Publication date May 6, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD.
- Yunfang BAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SERIAL COMMUNICATION APPARATUS AND SERIAL COMMUNICATION METHOD
- Publication number 20210117366
- Publication date Apr 22, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Qihua ZHANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RADIO FREQUENCY FRONT-END TRANSMISSION MODULE, CHIP, AND COMMUNICAT...
- Publication number 20210083714
- Publication date Mar 18, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ANTI-ELECTROMAGNETIC INTERFERENCE RADIO FREQUENCY MODULE AND IMPLEM...
- Publication number 20210082833
- Publication date Mar 18, 2021
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Fujuan JIN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MULTIMODE AND MULTI-FREQUENCY RADIO FREQUENCY FRONT END MODULE, CHI...
- Publication number 20210006276
- Publication date Jan 7, 2021
- SHANGHAI VANCHIP TECHNOLOGIES CO., LTD.
- Hao LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER BASED ON POWER DETECTION FEEDBACK,...
- Publication number 20200220504
- Publication date Jul 9, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin ZHAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY TRANSISTOR FOR IMPROVING RADIO FREQUENCY SWITCH PER...
- Publication number 20200194366
- Publication date Jun 18, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Guanjian XU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER MODULE HAVING HIGH LINEARITY AND PO...
- Publication number 20200195209
- Publication date Jun 18, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Gang CHEN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER FOR INHIBITING HARMONIC WAVE AND ST...
- Publication number 20200186099
- Publication date Jun 11, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO.,LTD.
- Jinxin ZHAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY POWER AMPLIFIER BASED ON CURRENT DETECTION FEEDBACK...
- Publication number 20200177142
- Publication date Jun 4, 2020
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Jinxin ZHAO
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RADIO FREQUENCY FRONT-END TRANSMISSION METHOD AND TRANSMISSION MODU...
- Publication number 20190222238
- Publication date Jul 18, 2019
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MULTIMODE POWER AMPLIFIER MODULE, CHIP AND COMMUNICATION TERMINAL
- Publication number 20180375479
- Publication date Dec 27, 2018
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MULTIMODE POWER AMPLIFIER AND METHOD OF SWITCHING AMONG MULTIPLE MO...
- Publication number 20150236659
- Publication date Aug 20, 2015
- VANCHIP (TIANJIN) TECHNOLOGY CO., LTD
- Yunfang Bai
- H03 - BASIC ELECTRONIC CIRCUITRY

Yunfang Bai

Person

Patents Grantslast 30 patents

3 DB orthogonal hybrid coupler, radio-frequency front-end module an...

Radio frequency power amplifier, chip, and communication terminal

Serial communication apparatus for unidirectional communication bet...

Radio frequency power amplifier based on power detection feedback,...

Radio frequency transistor for improving radio frequency switch per...

Radio frequency front-end transmission module, chip, and communicat...

Anti-electromagnetic interference radio frequency module and implem...

Radio frequency power amplifier based on current detection feedback...

Voltage equalization method for use in radiofrequency switch having...

Radio frequency power amplifier module having high linearity and po...

Multimode and multi-frequency radio frequency front end module, chi...

Radio frequency power amplifier for inhibiting harmonic wave and st...

Multimode power amplifier module, chip and communication terminal

Multimode power amplifier and method of switching among multiple mo...

Patents Applicationslast 30 patents

BALANCED RADIO FREQUENCY POWER AMPLIFIER, RADIO FREQUENCY FRONT-END...

HIGH-BANDWIDTH LOAD-MODULATION POWER AMPLIFIER AND CORRESPONDING RA...

ELECTROMAGNETIC SHIELDING STRUCTURE, MANUFACTURING METHOD, AND COMM...

POWER DETECTION CIRCUIT HAVING TEMPERATURE COMPENSATION FUNCTION, A...

RADIO FREQUENCY FRONT-END MODULE HAVING CURRENT PROTECTION FUNCTION...

RADIO FREQUENCY FRONT-END MODULE AND CORRESPONDING RADIO FREQUENCY...

RADIO FREQUENCY POWER AMPLIFIER THAT REDUCES LOAD CHANGE SENSITIVIT...

RADIO FREQUENCY POWER AMPLIFIER, RADIO FREQUENCY FRONT-END MODULE,...

3 DB ORTHOGONAL HYBRID COUPLER, RADIO-FREQUENCY FRONT-END MODULE AN...

RADIO-FREQUENCY POWER AMPLIFIER, RADIO-FREQUENCY FRONT-END MODULE A...

RADIO FREQUENCY POWER AMPLIFIER, CHIP, AND COMMUNICATION TERMINAL

VOLTAGE EQUALIZATION METHOD FOR USE IN RADIOFREQUENCY SWITCH HAVING...

SERIAL COMMUNICATION APPARATUS AND SERIAL COMMUNICATION METHOD

RADIO FREQUENCY FRONT-END TRANSMISSION MODULE, CHIP, AND COMMUNICAT...

ANTI-ELECTROMAGNETIC INTERFERENCE RADIO FREQUENCY MODULE AND IMPLEM...

MULTIMODE AND MULTI-FREQUENCY RADIO FREQUENCY FRONT END MODULE, CHI...

RADIO FREQUENCY POWER AMPLIFIER BASED ON POWER DETECTION FEEDBACK,...

RADIO FREQUENCY TRANSISTOR FOR IMPROVING RADIO FREQUENCY SWITCH PER...

RADIO FREQUENCY POWER AMPLIFIER MODULE HAVING HIGH LINEARITY AND PO...

RADIO FREQUENCY POWER AMPLIFIER FOR INHIBITING HARMONIC WAVE AND ST...

RADIO FREQUENCY POWER AMPLIFIER BASED ON CURRENT DETECTION FEEDBACK...

RADIO FREQUENCY FRONT-END TRANSMISSION METHOD AND TRANSMISSION MODU...

MULTIMODE POWER AMPLIFIER MODULE, CHIP AND COMMUNICATION TERMINAL

MULTIMODE POWER AMPLIFIER AND METHOD OF SWITCHING AMONG MULTIPLE MO...