Yasir Shafiullah
Doctoral Researcher
Finland, Oulu
Summary
An accomplished doctoral researcher affiliated with the University of Oulu, specializing in terahertz (THz) integrated circuits and electronics design, and demonstrating expertise in Cadence Virtuoso and innovative problem-solving capabilities. Proven success in radio frequency (RF) optimization at ZTE Corporation, resulting in enhanced network performance. Excels in collaborative projects, supported by proficient MATLAB programming skills and a proactive approach to research and development.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Doctoral Researcher
University of Oulu
Oulu
10.2020 - Current
- Designed and implemented integrated D-Band VCOs for 6G applications using 22 nm FDSOI CMOS processes.
- Developed three distinct VCO configurations in D-Band operating at intervals of 10 GHz.
- Utilized fundamental LC and push-push LC VCO architectures to achieve D-Band targets.
- Fabricated and tested VCOs in laboratory settings for performance evaluation.
- Completed design of Reflective Intelligent Surface (RIS) chip integrated with antennas; measurement ongoing (Final Year)
Research Assistant
University of Oulu
Oulu
09.2018 - 09.2020
- Conducted design and research on mm-wave analog integrated circuits.
- Prototyped RFIC designs for passive components from schematic to layout.
- Engineered low-noise amplifiers for mm-wave frequency applications.
- Applied RF measurement techniques to evaluate circuit performance.
- Completed master's thesis focusing on voltage-controlled oscillator design at sub-THz frequencies.
RF Post Processing Engineer
ZTE Corporation
Islamabad
07.2015 - 08.2018
- Executed 3G/4G RF optimization in major cities and clusters.
- Monitored OMC KPI and analyzed daily KPI dashboard for worst cell identification.
- Assessed RRC setup success rate, RAB setup success rate, and congestion metrics daily.
- Implemented adaptive load control, NBIC features, and optimized voice service for Multi-RAB.
RF Field Test Engineer
ZTE Corporation
Islamabad
07.2014 - 06.2015
- Conducted 3G/4G cluster optimization tests, enhancing overall network performance.
- Performed frequency scanning to identify and resolve issues in GSM and UMTS networks
- Executed benchmark tests to assess network efficiency and reliability.
- Optimized coverage by adjusting antenna power, tilt, and azimuth settings.
- Completed OMO Quality Test Points and Cluster Drive Benchmarking for competitive analysis.
Internee
ZTE Corporation
Islamabad
03.2014 - 06.2014
- Walk test, bench-marking, scanning, cluster drive, and reporting
- Prepare reports and presentations for the team leader at the regional and BSC levels
- Hands on Experience on map info tools like Mapper, GSM to Application, Sitesee, Append, Telemate, Optimization of hard parameters such as antenna tilts and azimuth changes
- Visited the customer complaint location, performed call testing, and resolved issues like 'network busy,' 'call blocking,' 'call quality,' and 'coverage issues.'
Internee
Pakistan telecommunication company limited - PTCL
Islamabad
07.2013 - 08.2013
- Identification and resolution of faults in regional networks
- Integration of NMSs (Network Management Systems) and their coordination in the NOC project by managing IT protocols
Education
Master's degree - Wireless Communications Engineering
University of Oulu
Oulu, Finland01.2020
Fab Academy Diploma - Digital Fabrication
MIT Fab Academy
01.2019
Bachelor of Science BS - Electronics Engineering
University of Engineering And Technology Taxila
01.2014
Skills
- Radio communication systems
- Integrated circuits
- Cadence Virtuoso
- Keysight ADS
- CST microwave studio
- KiCad EDA
- LTSpice simulation
- LabVIEW development
- MATLAB programming
- Microsoft Excel proficiency
- Python programming
- TEMS investigation
- System integration
- RF measurement
Certification
- Mm-Wave & THz CMOS IC Design, IEEE SSCS, 07/01/22
- RF Fundamentals, Basic Concepts and Components - RAHRF101, Rahsoft, 06/01/20
- RF Field Testing Basics 101, Keysight Technologies, 06/01/20
Publications
- A Low-Power Push-Push D-Band VCO with 11.6% FTR utilizing Back-gate Control in 22nm FDSOI, 01/22/23, 2023 IEEE Radio and Wireless Symposium (RWS 2023)
- 108 and 124 GHz Fundamental VCOs with 21% and 7% DC-to-RF Efficiency in 22nm CMOS FDSOI, 09/01/22, 2022 17th European Microwave Integrated Circuits Conference (EuMIC 2022)
- A Voltage Controlled Oscillator with Inductive Divider Design and Analysis at Frequencies Above 100 GHz, 10/01/20, 2020 IEEE Nordic Circuits and Systems Conference (NorCAS 2020)
- Hybrid Coupler-Based 160 GHz Reflection Amplifier with 120° Phase Control in 22 nm FDSOI for RIS Applications (NEWCAS 2025)
Projects
D Band Reflection Amplifiers for future RIS Applications. D Band (110-150 GHz) wide-band VCO design, fabrication and measurement in FDSOI CMOS. Design and simulation of low noise amplifier at 2 GHz and 28 GHz in FDSOI CMOS. Design of Operational Transductance Amplifier in 45 nm CMOS Technology. Ultrasonic Blind Vision System using PIC Microcontroller. RFID Based Automated Toll Plaza System.
Languages
- English, Fluent
- Urdu, Native or Bilingual
Personal Information
Title: Doctoral Researcher
Timeline
Doctoral Researcher
University of Oulu
10.2020 - Current
Research Assistant
University of Oulu
09.2018 - 09.2020
RF Post Processing Engineer
ZTE Corporation
07.2015 - 08.2018
RF Field Test Engineer
ZTE Corporation
07.2014 - 06.2015
Internee
ZTE Corporation
03.2014 - 06.2014
Internee
Pakistan telecommunication company limited - PTCL
07.2013 - 08.2013
Master's degree - Wireless Communications Engineering
University of Oulu
Fab Academy Diploma - Digital Fabrication
MIT Fab Academy
Bachelor of Science BS - Electronics Engineering
University of Engineering And Technology Taxila