Frank Li
Principle Staff And Senior Engineer
Los Angeles,California
Summary
- Over twenty years of expertise managing engineering team of RF/MW/MMW hardware design, development, and testing.
- Dynamic CTO at Enicom/Shengxin with a proven track record, specializing in RF/MW and SAW device innovation.
- Global VP at Spreadtrum, growing a company from a small startup to a NASDAQ-listed giant.
- Extensive hands-on experience in designing RF front-end modules, SAW/BAW filters, duplexers, multiplexers, power amplifiers, RF switches, LNAs.
- Hands-on experience in building up a multi-physics design platform for SAW/BAW filters which has been used to launch hundreds of SAW filter products successfully.
- Key inventor of over a dozen of patents, primary author of professional journal articles and IEEE conference papers in the RF/MW field.
Overview
33
33
years of professional experience
Work History
Senior Consultant
MZY Electronic Tech Ltd.
Los Angeles / Shanghai, China
04.2024 - Current
- Company Overview: MZY Electronic Tech Ltd. is a RF/MW Technology Consulting Firm.
- Providing RF/MW circuit design services to various clients, including an RF/MW giant company in California.
- Developing training materials and conducting training programs for staff members of client companies on new technologies or processes.
CTO
Enicom/Shengxin
Suzhou
10.2020 - 03.2024
- Company Overview: IDM company in the RF/MW front-end module and RF surface acoustic wave filter industry.
- Managed engineering team of more than thirty engineers to design power amplifiers, RF switches, SAW/BAW filters, duplexers, multiplexers, provide technical leadership throughout all phases of filter product development, including product definition, technology selection, LNA/PA filter co-design schemes, MCM co-design, tapeout coordination and tracking, and probing/EVB result assessment.
- Exploring RF/MW front-end module and SAW technology innovation, and playing a key role in the formulation of a new product road map.
- Ensuring seamless coordination among departments and teams, such as R&D engineers, equipment, process experts, project management, and operations.
- Being fully responsible for device modeling improvement, optimization, and innovative product design of RF/MW front-end modules and SAW devices.
- Had over eight patents authorized as the first inventor.
Senior Consultant
NRH Electronic Tech Ltd.
San Jose / Nanjing, California / China
11.2008 - 10.2020
- Company Overview: NRH Electronic Tech Ltd. is a RF/MW technology consulting firm.
- Provided EM simulation and design services to clients for customized, high-power EM shielding cavity projects (patents authorized as the first inventor).
- Provided RF front-end module design support to various clients.
- Worked with the client on various antenna projects, including authorized patents as the second inventor.
Global VP, Product Design
Spreadtrum Communications Inc.
Sunnyvale
09.2002 - 11.2008
- Company Overview: Spreadtrum Communications, Inc. is a fabless IC design house, NASDAQ-listed in 2007.
- Experienced the whole process from a tiny startup to a NASDAQ-listed giant.
- Supervised international projects of product development from start to finish, ensuring that deadlines were met.
- Managed the Product Design BU with over 150 engineers.
- Established the Hardware and RF Technology Department by recruiting and training new hires.
- Designed the PCB and assembly parts of the company's first cell phone product in person.
Director Level Senior Scientist
Maxim Integrated Products
Sunnyvale
07.1998 - 09.2002
- Company Overview: Maxim Integrated Products is an analog IC provider.
- Worked on RFIC SOC projects and focused on transceiver architecture design.
- Worked on the RFIC PA project and made it the best seller of the year in 2001.
- Worked on microwave/millimeter wave component product design.
- Promoted twice, the first inventor of three key authorized patents.
- Worked on Tower-Top Amplifier products and released them to AT&T on time.
- Maxim Integrated Products is an analog IC provider.
- Determined design criteria or specifications.
- Performed testing to determine functionality or optimization.
- Had one patent authorized as the first inventor.
Senior Scientist
Hewlett-Packard Company
San Jose
07.1996 - 07.1998
- Company Overview: Hewlett-Packard is a component and equipment product provider in the fields of semiconductors, fiber-optic devices, RF components, RF/Microwave test equipment, etc.
- Was in charge of a project for a low-cost 38 GHz PCB-based up/down converter assembly design.
- Participated in the fiber-optic modem project and designed a multi-channel, multi-path simulator box.
Staff Scientist / Member of Technical Staff
Watkins-Johnson Company
Palo Alto
07.1991 - 07.1996
- Company Overview: Watkins-Johnson is a RF/MW/MMW component product provider in the fields of wireless communication, military application, etc.
- Was responsible for the design project of a low-cost microwave mixer series and successfully delivered it to the market with self-invented embedded technologies.
- Involved in tower-top amplifier and microwave relay transceiver projects, and played a key role in the frequency converter design.
- Designed a 6-channel microwave phase-matched converter module, and delivered it to the customer on time.
- Had two patents authorized as the first inventor.
Education
Master Degree - Microwave Engineering
Tufts University
Medford, MA05-1991
Skills
- RF/MW Multi-Layer PCB Design
- RF/MW Circuit Design
- EM Simulation and Design
- Multi-Physics Simulation and Design
- SAW/BAW Device Modeling and Parameter Extraction
- SAW/BAW Filter/Multiplexer Design
- Orcad/Allegro
- ADS
- HFSS
- COMSOL
- Technology Integration
- Training and Mentoring
Personal Information
Citizenship: US Citizen
Affiliations
- Music
- Tourism
- Brisk walking
Languages
Chinese (Mandarin)
Native language
English
Proficient (C2)
C2
Accomplishments
Papers:
1. A Precise COM Model Parameter Extraction Method with Automated Curve-fitting and Accuracy Verification. Corresponding author: Xiaohui (Frank) Li. May 2024 IEEE IC-MAM
2. Multi-order Cancellation Technology, Frank Xiaohui Li & Greg Corsetto, Microwave Journal, Oct. 1997
3. Linear Amplifier Powers 2.4GHz WLAN Applications, Frank Li & Walter Law, Microwave & RF, March 2001
4. A 60 GHz Automated Open Resonator System for Material measurement， Xiaohui (frank）Li and M. Afsar, IEEE MTT Symposium, Dec. 1990.
Patents:
1. Printed circuit board including a notch filter for attenuating radio frequency interference, US patent No. 7327208 B2
2. An ultra-broadband zero temperature drift filter, patent No. ZL 2023 1 1167820.5
3. Multi-layer printed wiring board having integrated broadside microwave coupled balun, US patent No. 6263198 B1
4. Unbalanced FET mixers, US patent No. 5678226
5. Alignment method and apparatus for I/Q phase and amplitude error correction and image rejection improvement, US patent No. 6760577 B2
6. Compensated ring mixers, US patent No. 5854974
7. An antenna with high phase center accuracy, patent No. ZL 2020 1 0790251.X
8. Circuit packaging structure and packaging method for improving temperature drift of surface acoustic wave filter device，patent No. CN 202211704873.1
9. An ultra-wideband surface acoustic wave filter, patent No. CN 202211694075.5
10. A SAW filter with improved out-of-band suppression, patent No. ZL 2023 1 1356509.5
11. A surface acoustic wave device and its forming method for suppressing transverse mode, patent No. ZL 2023 1 1269429.6
12. A SAW filter design method, patent No. ZL 2020 1 1597117.4
13. A SAW filter design, patent No. ZL 2020 1 1583771.X
Timeline
Senior Consultant
MZY Electronic Tech Ltd.
04.2024 - Current
CTO
Enicom/Shengxin
10.2020 - 03.2024
Senior Consultant
NRH Electronic Tech Ltd.
11.2008 - 10.2020
Global VP, Product Design
Spreadtrum Communications Inc.
09.2002 - 11.2008
Director Level Senior Scientist
Maxim Integrated Products
07.1998 - 09.2002
Senior Scientist
Hewlett-Packard Company
07.1996 - 07.1998
Staff Scientist / Member of Technical Staff
Watkins-Johnson Company
07.1991 - 07.1996
Master Degree - Microwave Engineering
Tufts University
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