Charles Luke

Background

About Charles Luke

Highly experienced Senior RF microwave engineer at Viasat and Owner of Gizmoaudio (have a guitar pedal patent), specializing in RF / Radio Frequency, Microwave, RF applications and systems design. Products include wideband modems (3.2GHz BW), tracking receivers (have a patent), IOT transceivers over satcom (using AD9361), CBRS remote extender, and various frequency converters. Also expert in GSPS converter technology, microwave synthesizers, and phase noise (Patent applied for for synthesis technique). Various Microstrip filter designs including voltage tunable. UWB design. Experience before Viasat was in antenna range and RCS instrumentation. At Scientific Atlanta worked on many RF/Microwave designs for satellite ground stations.(Patent for Fiber Optic usage for an antenna range). At Scientific Atlanta designed a phase noise analyzer for tracking phase on the VLBI (Very Long Baseline Interferometer) where a sat was used to extend the baseline and we had to do accurate measurements of phase close in as random walk. On the same program I designed fiber optic twist loops to minimize phase shift with antenna motion. Provided leadership in a variety of projects involving large scale R&D efforts. Able to balance the needs of business users and customer with the technical challenges of designing products to meet market demand. Strong record of contributions leading product teams and managing projects to successful outcomes. Experience in working with geographically dispersed teams and vendors. Considered SME for microwave design and test, and areas related to phase noise. From the time working as a consultant worked designing RCS Instrumentation (Radar-Cross Section), NMR (Nuclear Magnetic Resonance), UWB (Ultra-Wideband) for asset location. Planar and Spherical near-field system design and error analysis. Compact range system design. Worked with AMOCO Oil and designed the RF portion and sample antennas of a NMR machine for measuring porosity of core samples. ADS, Genesys, Ansoft designer, Matlab, LTSpice, PLL tools from ADI and TI. Mentor schematic/pwb, Python, Windows Office, Visio, Eagle pcb. VNA Keysight and R&S, Signal generators, PNA signal analyzers, phase noise analyzer FSWP