Brian Wiseman Email & Phone Number

Gilbert, Arizona, United States

Remote Reliability Analysis Engineer Contractor for JPL in Pasadena CA• Electrical Parts Stress Analysis (EPSA): Analyzed the component stress for various space flight boards including DC, Digital, Synthesizer, Receive, TX, TRSW, and Power Amplifier.• Worst Case Analysis (WCA): Analyzed the adherence to requirements under worst case conditions using JPL component de-ratings for the Receive, TX, TRSW, and Power Amplifier boards.• Single Events Effects Analysis(SEEA): Analyzed the component and system effects under transient radiation, which is defined by the JPL parts group, for the Synthesizer, Power Amplifier Unit, and TX boards. • Failure Modes, Effects, and Criticality Analysis(FMECA): Performed a review of board and system assemblies to evaluate tolerance functionality during test. Identified critical issues and proposed solutions that were implemented. Documented each analysis into the Reliability Inter Office Memo database per guidelines. Compiled and resolved Design Analysis Discrepancies (DAD) based on issues raised in the various analysis. Worked with JPL Reliability, Parts Group, Design, and Component Vendor engineers to facilitate the closure of each analysis.

Chandler, Az

Mobile RF Systems Engineer• TX system lineup analysis which led to RF front-end component requirements, including Power- out, ACLR, SEM, Spectral Emissions, Noise, Current, and EVM in an Excel based VB tool. • Designed and optimized envelope tracking and digital pre-distortion for Intel reference design to be used by external customers in evaluating performance of Intel’s ICs with RF front-end devices.• Managed a team of engineers to help drive EMI-related customer issues down to zero for carrier compliance which resulted in a successful customer launch in Aug, 2018.• Solved multiple transceiver emission violations and presented successful solutions to the customer to meet 3GPP EMI compliance.

Tempe, Az

Mobile Application Engineer• Researched and presented to the technical staff the current PA and envelope tracking vendor offerings on a monthly basis.• Authored multiple front-end spec requirements for use in Fujitsu’s reference design. • Worked with multiple customers (RIM, Motorola, Sequans) analyzing their RF front-end selections in Excel-based lineup tool to illustrate the success in working with Fujitsu’s chip set. • Designed a structured method to test vendor envelope tracking ICs. Constructed Matlab scripts to automate testing and optimized parameters of envelope tracking ICs. This enabled Fujitsu to determine which ICs were compatible and helped propel Fujitsu to become one of the first mobile platforms to implement envelope tracking. • Designed, simulated with spice, and executed a PCB layout of an analog (100MHz BW) envelop tracking amplifier lineup using state-of-the-art high frequency op amps/discrete FETs.

Wireless Base Station Design• TX, Feed-forward, and DPD Lineup analysis and simulation for CDMA, Wimax, and LTE communication systems using ADS, Matlab, Crystal Ball, and Excel• Developed requirements, certification test plans, for both board and system level CDMA, WIMAX, and LTE products• Championed RF design teams to pass Six Sigma adherence for both laboratory and factory data results using Minitab• Technical lead for system integration on Wimax and LTE remote radio head projects• Designed, simulated and developed the hardware/software requirements for TX AGC systems for CDMA, Wimax and LTE products• Developed highly efficient test methodology procedures in Motorola’s factory for board and system level conformance testing on CDMA, WIMAX, and LTE products• Designed and simulated Motorola Networks first low cost TX Zero-IF architecture for Wimax and LTE Remote Radio Heads• Lead technical support for all TX issues at Accelerated Life Testing, Factory, system integration testing, EMC testing, and customer returns on CDMA, Wimax, and LTE products• Designed, simulated, and performed board level layouts for TX (700-3700MHz) small signal circuits including DAC, QMOD, RF AMP, DSA, RF Switches, ADC, Mixer, and Filter•Designed, simulated, matched, and certified RF Doherty power amplifier (20 Watt) (880 MHz) using ADS• Designed and certified Motorola’s first single board Feed-Forward PA using Rogers PBC material resulting in significant cost and size reductions• Designed, matched and certified discrete TX class A, Class AB, and Class C amplifiers (up to 1watt) for the 800/1500 MHz CDMA/Analog bands• Built prototype boards, evaluated, and qualified new devices• Involved with the design of Motorola’s and TI DPD solutions• Investigated and simulated Envelope Tracking modulator for improved PA efficiency using Spice

Communication Satellite Design• Designed, simulated, and tested a 14GHz Peltier Cooled RX Low Noise Amplifier using a crystal substrate with less than 1dB Noise Figure• Designed, simulated, and tested a 300MHz PLL with a discrete VCO• Performed worst case analysis for several circuit level designs