Christopher Lonergan

- Led over 20 undergraduate members to devote over 200 service hours to the ECE department, including tutoring, corporate outreach, information sessions, and resume reviews open to all undergraduate ECE majors. - Founded a tutoring program for Electrical Engineering classes, working with professors and department members to manage outreach through flyers and announcements within classes. Tutors devoted over 100 hours to over 30 students within the first semester.

- Designed custom frequency divider in GF22FDX with speed above 20GHz and power below 50uW. Led architecture trade, schematic, layout and post extraction efforts. - Implemented fully custom low power FIFO queue from schematic to layout and post extraction in GF22FDX using Cadence

- Worked with team of 5 undergraduates in design of a low power ISM-band OOK transceiver IC with wakeup receiver architecture from spec development to architecture trade, schematic, layout, and tapeout for PA, LNA, Enveloped Detector, Correlator, and Comparator. - Designed 915MHz Differential Class-F Power Amplifier with 40% PAE in Cadence using TSM180 including schematic, layout, extraction, and tape-out. Estimated delivery date in Fall 2025. - Designed 915MHz Class-A Power Amplifier containing a current-reuse modulator with 35% power-added efficiency at 2dBm output power, 16dB small signal gain, and 15uW leakage power in Cadence using Skywater’s open source 130nm PDK, including schematic, layout, and extraction. - Designed models of QFN package including wirebonds with HFSS to inform physical design and padring implementation. - Designed transmitter PCB to develop networking code with microcontroller, PLL, gain blocks, and RF front end components.

- Lead of the Electrical subteam of Cornell Rocketry. The project team designs, assembles, and launches high-powered rockets that compete in the annual Spaceport America Cup. - Awarded 1st Place in 10K SRAD category and 2 nd place overall out of 158 teams at Spaceport America Cup competition. ▪ Led the electrical subteam with 8 members, ensuring project deadlines were met while providing support to team members. - Architected electronics system for hybrid motor test stand using LabJack to interface with 5 solenoid valves, 2 servos, and 13 sensors, with 2 custom PCBs created in Altium, a wiring harness, and a custom control panel created in SolidWorks

- Owned development of a high frequency Power Amplifier board to analyze the performance of various power amplifiers end to end from spec development to market research, schematic capture, simulation, layout, build, and test. Designed input and output matching networks in HFSS, ultimately leading to multiple power amplifiers that met desired electrical and thermal performance. - Owned high frequency Low Noise Amplifier development to analyze the performance of various low noise amplifiers from spec development to market research, simulation, and test. Designed input and output matching networks using HFSS to meet desired specifications in band. Automated tests to determine small signal parameters and large signal parameters such as linearity and Noise Figure degradation in the receive chain due to transmit blocker power over bias and temperature.

- Owned IC test program from definition to final ATE integration: defined test coverage and limits using inputs from vendor and IC specifications, implemented bench level test program execution by writing Python APIs and scripts to execute SPMI register read/writes, integrated into ATE setup by working with external vendors to debug issues and translate bench level patterns to test program, and reduced test time by 96% per test item compared to initial estimation with above 95% multi site efficiency. - Reduced yield analysis report generation from 1 week after build completion to 40 minutes after receiving partial build data by working with module vendors to standardize a csv format and designing a Tableau workbook including standard report template, enabling daily executive level updates and improving failure analysis reaction time during proof of concept build for a wireless module. - Developed ATE implementation for wireless tests such as crystal frequency drift calibration and transmit power offset calibration. Optimized test time using binary search algorithms to meet targets. - Characterized and automated measurements including harmonic distortion and band edge power for WiFi and Bluetooth transceivers using a Spectrum Analyzer, Python, and diplexers.

- Assessed feasibility of using Frequency Domain Reflectometry for RF signal paths on military grade system. Used a Vector Network Analyzer (VNA) measuring up to 67GHz to take measurements and MATLAB for data processing and analysis - Presented analysis and findings to senior engineers and new hires to facilitate smooth continuation of projects - Designed test fixture electronics and testing procedure for space-grade payload to fulfill power, RF, and digital system requirements - Communicated with engineers to write Interface Control Document (ICD) for space-grade payload - Classified high performance Integrated Microwave Assemblies (IMAs) based on measurements of characteristics such as insertion loss, isolation, and switching time - Member of team of interns working to automate test equipment for RF tests using GPIB, SCPI and MATLAB