Sivaprasad Bushennagari
RF Hardware System Engineer
Hyderabad
Summary
Senior RF Hardware Systems Engineer with 8+ years of experience at Qualcomm in RF system design and validation, hardware bring-up, characterization, and debugging of cellular and wireless communication platforms. Extensive hands-on expertise with RF test equipment, including spectrum analyzers, vector network analyzers (VNAs), signal generators, oscilloscopes, and wireless communication test stations. Experienced in RF performance evaluation, impedance matching, board-level debugging, signal integrity validation, calibration, and characterization across 5G NR, LTE, 3G, 2G, and IoT technologies. Proficient in Python-based test automation, PCB investigation, hardware interface debugging, and cross-functional collaboration with global engineering teams. Strong background in RF measurements, root-cause analysis, technical documentation, and delivering robust wireless hardware solutions.
Overview
2
2
Certifications
11
11
years of professional experience
Work History
Senior RF Hardware Systems Engineer
Qualcomm
08.2021 - Current
- Conducted board bring-up, RF characterization, hardware validation, and debugging to optimize wireless system performance and compliance.
- Executed conformance testing for Qualcomm chipsets, ensuring compliance with 5G NR, LTE-Advanced, and legacy standards (3G, 2G).
- Worked on advanced wireless technologies, including DLCA/ULCA, ULMIMO, and IoT standards (CAT-M1, NB-IoT), to validate chipset performance and functionality.
- Conducted RFFE validation, PCB debugging, and impedance matching to optimize RF performance, signal integrity, and hardware reliability.
- Hands-on experience in using RF design and simulation tools, such as ADS, Xpedition, and OrCAD, for investigating and debugging PCB board-level issues, including impedance matching, signal integrity, and RF performance optimization.
- Hands-on experience with RF test equipment, including Spectrum Analyzers, Signal Generators, Oscilloscopes, Power Meters, VNAs, R&S CMW100, and Anritsu 8821C/8000 Call Boxes.
- Developed QSPR/VBS automation scripts for RF characterization, Tx and Rx performance testing, improving validation efficiency.
- Led the setup and calibration of the RF test suite, ensuring accurate and reliable testing environments for RF validation.
RF Hardware Systems Engineer
Qualcomm
04.2018 - 08.2021
- Performed RF calibration and characterization (Power tracking, Antenna diversity, feedback Rx, temperature Etc..) for 2G/3G/4G/Sub6 Qualcomm chipsets, optimizing Tx/Rx performance to ensure compliance with 3GPP specifications and achieve sufficient performance margins.
- Troubleshot and resolved RF performance issues, including Max power, ACLR, SEM, spurious emissions, and de-sense, to meet product specifications and improve overall device performance.
RF Support engineer
Qualcomm
11.2016 - 04.2018
- Conducted 3GPP conformance testing for Qualcomm chipsets using Anritsu MT8820C/8821, ensuring GSM and WCDMA compliance while validating Tx/Rx parameters through automated QSPR scripts
- Analyzed raw test data with Qmine, identifying and debugging performance issues3GPP specifications to identify and debug performance issues.
Assistant Professor
CBIT
03.2016 - 10.2016
- Worked as an Assistant Professor in the ECE department, facilitated electronics lab sessions and taught Electronics and Communication subject.
Education
M. Tech - Advanced Communication Systems
National Institute of technology
Warangal06.2015
Bachelor of Technology (B. Tech.) - undefined
Avanti Institute of Technology
Hyderabad05.2012
Skills
RF Technologies: 5G NR, LTE/LTE-A, WCDMA, GSM, NB-IoT, Cat-M1, WLAN/WWAN Coexistence
RF Validation & Debug: RF Characterization, Calibration, Conformance Testing, RF Front-End Validation, Antenna Evaluation, Impedance Matching, Board Bring-up, Hardware Debugging, Signal Integrity, Root Cause Analysis
Test Equipment: Spectrum Analyzer, VNA, Signal Generator, Oscilloscope, Power Meter, R&S CMW100, Anritsu MT8820C/8821C/8000
Tools & Automation: ADS, OrCAD, Xpedition, Altium Designer, QXDM, PCAT, Python, QSPR, QMine, AXIOM, Visual Studio
Certification
RF Design Fundamentals & Wireless System Techniques by Besser Associates
Timeline
Senior RF Hardware Systems Engineer
Qualcomm
08.2021 - Current
RF Hardware Systems Engineer
Qualcomm
04.2018 - 08.2021
RF Support engineer
Qualcomm
11.2016 - 04.2018
Assistant Professor
CBIT
03.2016 - 10.2016
Bachelor of Technology (B. Tech.) - undefined
Avanti Institute of Technology
M. Tech - Advanced Communication Systems
National Institute of technology