Ray Ponce Email & Phone Number

Florida, United States

Plantation, Florida, Us

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Plantation, Florida, Us

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Led the development, optimization, and verification of proprietary OFDM cognitive radio communication systems operating in adverse RF environments through interference mitigation and dynamic spectrum access (DSA) techniques.• Led the creation of custom OFDM waveforms using the Keysight SystemVue software environment for optimization and verification. • Designed and built a software defined radio (SDR) environment for proper modulation and demodulation of custom OFDM signals using VSA and Logic Analyzers. • Improved efficiency and signal integrity by identifying and integrating an improved RFPA module into an existing operating design. Successfully tested new module in the field with no issues.

Chicago, Illinois, Us

- Demonstrated successful ‘one pass to production’ design process for complex multi-band antenna matching networks from simulation, to design and procurement, to measurement verification.- Developed and published ADS simulation ‘trace primitives’ library to aid in PCB parasitic extraction during first pass simulation with ‘one pass to production’ goal.- Developed and refined Hi-Q measurement techniques for measuring next generation tuning devices.- Derived equations for parameter extraction of equivalent circuit parameters from measured data into the ADS simulation tool.- Led the design, optimization, and testing of an LTE transceiver line-up for a shipping product. Recommended and instituted design changes as required to meet all necessary internal and regulatory specifications.- Evaluated Active Diversity circuit line-up to improve receiver noise performance. Published a detailed report with recommendations.- Prepared RFI documentation to vendors for proposals on next generation devices for use in our next generation antenna tuner designs.- Managed overall schematic for all RF subsystems for a shipping product.- Led the team responsible for a new WiFi, GPS, BT, and FM module integration effort. Drove weekly vendor discussions to resolve issues and ensured milestones were met on time.- Implemented the 1st iDEN RF TX module with dual band outputs. Drove all testing as well as qualification, integration, and system verification for full specification compliance. Wrote the detailed specification for the module.Design for Six Sigma Green Belt CertificationUS Patent Disclosure CS41985 – System and Method for Integrating Miniaturized Antennas with Tuning DevicesUS Patent Disclosure CS38484 – Architecture that Allows for Dual Camp, Single Mode, and Knife Switch Operation of a Cell Phone using a Common PCB

Chicago, Illinois, Us

- Delivered the 1st working prototype of a transceiver module containing an integrated modem for a complete RF line-up solution.- Delivered the 1st iDEN integrated transceiver hybrid module with an on board GPS receiver in the industry. Responsible for overall schematic and layout activities including all TX design, testing, and system integration.- Designed and simulated embedded passive components for a hybrid module including embedded inductors and High-Q capacitors. Designed the complete TX sub-system of the module from baseband output to antenna input including input and output RFPA matching networks.- Developed an iDEN TX Automated Test Environment using NI Labview software in order to quickly tune and test radios. Implemented development test procedures into production test facilities after verification.- Developed the 1st WiMax front end design for a portable radio. - Wrote the detailed technical specification for the WiMax RFIC module.- Developed qualification plans for all major WiMax front end components. Worked with vendors and performed qualification testing, as necessary, to ensure internal and WiMax specifications.- Created a unique TX cutback algorithm in order to ensure stringent WiMax TX accuracy and cutback specifications. Implemented algorithm in ATE test system to verify performance.US Patent Disclosure CS38484 – Low Loss Multiplexing Transceiver Antenna System

Chicago, Illinois, Us

- Implemented the 1st Doherty RFPA design into a portable radio. Designed and tested linear RFPA, components, and associated transmission lines to improve RFPA efficiency by 30%.- Successfully implemented the 1st Supply Modulation (or Envelope Tracking) design into a portable radio. Coordinated vendor and team efforts to design, test, and verify system performance to improve battery life by 35%. - Pioneered the use of configurable front end switching arrangements, using PIN diodes, for multi-band radios. Adapted designs for an integrated antenna module using LTCC technology.US Patent Disclosure CE13384JLO – GPS Self Test in a Cell PhoneUS Patent 6,351,628 – Antenna Switching Circuit

Chicago, Illinois, Us

- Responsible for researching solutions for instituting a portable linear transmitter required for APCO compliance.- Submitted alternative designs and technologies for use in receiver front ends. Began development of integrating RF and IF transformers using multilayer ceramic technology to improve performance, size, and cost of current designs.- Involved in the development of the 1st digital radio for public service employees in mission critical environments such as the FBI, US Secret Service, fire, and police organizations.- Responsible for smooth transition efforts between development and production engineering teams. Identified, tracked, and solved ongoing issues such as software and hardware incompatibilities and implemented new tuning algorithms.- Prepared and released the Factory Tune and Test Procedures Document following development test and verification.- Presented an offset mixer and digital divider approach to avoid harmonic interference in frequency multiplier circuits.- Successfully completed FCC Type Acceptance document and submission for a portable radio. This was the 1st submission in electronic form.US Patent 5,973,570 - Band Centering Frequency MultiplierUS Patent 5,903,196 - Self Centering Frequency Multiplier

- Involved in the design and development of the 1st 2 way Voice Pager.- Assisted in the design of the PLL synthesizer, VCOs, and modulation circuits.- Developed ADS simulation passive models to correlate simulated to measured results. Performed optimization and Monte Carlo analyses to ensure six sigma designs.

- Determined the type and content of messages needed, using CCITT standard protocols, for an ISDN PRI interface that would allow AT&T’s customers to deliver information over the interface to AT&T’s ‘Test-to-Speech” application.- Published technical paper “ISDN PRI Test Delivery Capability for Text to Speech Application” outlining solutions to implement the service.

Coral Gables, Fl, Us

- As a graduate teacher’s assistant, taught undergraduate engineering courses covering fundamental engineering principles. Instructed students on the operation of test equipment as part of curriculum.- Assisted in editing and reviewing published textbook “Microwave Transistor Amplifier Design” under Prof. Guillermo Gonzalez.

- As an FAA licensed Airframe & Powerplant Mechanic, worked on all facets of maintaining commercial jet aircraft systems. - Responsible for evaluating aircraft electrical and electronic system malfunctions and quickly repairing them to minimize downtime.

Msece, Rf And Microwave Engineering

Bachelor’S Degree, Electrical And Electronics Engineering

Associate’S Degree, Associate Of Arts In Engineering

Associate’S Degree, Aviation Maintenance Technology