Experience

Component Distributors, Inc. (CDI)

• United States
• Semiconductor Manufacturing
• 1 - 100 Employee

• Vice President of Engineering

  • Nov 2014 - Present

  - Established a fully automated high-power RF lab capable of simulating, designing, and fabricating RF and microwave circuits up to 5GHz. - Managed relations between design engineers and suppliers to ensure recommended product met application requirements. - Created multiple platforms for evaluating discrete GaN amplifiers ranging in power from 2W to 400W operating at frequencies up to 5GHz. - Provided design support to aid in customer integration of GaN amplifier technology. - Conducted sales team training to educate field sales on application lab capabilities. Show less



KRS - Kwajalein Range Services, LLC

• Lead Transmitter Engineer

  • Feb 2012 - Nov 2014

  - Designed 130kV solid state modulators for 2MW L and S Band radar transmitters. - Identified vendors, specified requirements, procured, and integrated solid state intermediate power amplifiers utilized in L and S Band radar transmitters to replace a TWT based solution. - Responsible for identifying system modifications to improve radar reliability. - Scheduled work load of Hardware Engineers, Field Engineers, and Technicians to implement proposed projects and system design changes. - Mentored other hardware engineers in building high reliability systems and architectures. Show less



TriQuint Semiconductor

• RF Design Engineer

  • Jul 2008 - Feb 2012

  - Used high power load pull to design internal pre-match circuits for GaAs HVHBT technology to optimize performance for 2.14GHz and 2.655GHz amplifier designs. - Designed TRL calibration fixtures used to load pull GaAs HVHBT devices and generate load pull contours and target impedances to build fixtures with first pass success. - Transitioned a module design from prototype to high volume production. - Analyzed customer power amplifier modules to optimize reliability, performance, and overall system design when using TriQuint HVHBT technology. - Evaluated GaAs HVHBT technology within an Envelope Tracking system utilizing Digital Predistortion to linearize the amplifier. - Designed Doherty amplifiers using GaAs HVHBT and LDMOS technology demonstrating the highest published lineup power added efficiency and linearity. Show less

• Radar Transmitter Engineer

  • Jan 2007 - Jul 2008

  - Responsible for assigning Field Engineers and Technicians daily tasks and responsibilities. - Analyzed an undocumented transmitter system and created RF system documentation to determine design projects to improve transmitter performance, monitoring, and reliability. - Created budget and workload requirements for proposed design projects. - Worked with L and S band Klystron and TWT systems with an operating voltage up to 130kV. - Acted as lead transmitter engineer upon arrival and was promoted to Hardware Engineer III after 6 months of employment. Show less



Motorola

• 1 - 100 Employee

• Sr. RF Engineer

  • May 2004 - Jan 2007

  - Matched a 1.9GHz 100W LDMOS transistor biased Class AB to meet CDMA specifications for gain, efficiency, and ACP performance. - Used ADS/Momentum to simulate LDMOS transistor match impedances and utilized ADS to create an RF layout for breadboard fabrication. - Created an automated testing environment to evaluate amplifier match iteration performance for ACP, P1dB, efficiency, and IM3 using LabView. This automated station was also used to test total feed forward amplifier performance as well as evaluate device performance from a broad spectrum of vendors for potential use in future products. - Used ADS and HFSS to design an active 2.14GHz splitter/combiner. Once the initial design was complete, ADS was used to generate an RF layout. I populated the breadboard and tuned performance to optimize the circuit for insertion and return loss. - Used HFSS to model 3D structures to optimize transitions from u-strip to surface mount connectors. Show less