Robert Duke, Inc

RF Test Instruments & RF Components Support for the Southeast US

Coaxial Components


 Microwave Connectorized  components for OEM and Test applications including:  Adapters,  Amplifiers Power and Low Noise, Attenuators, Couplers, Dividers,  Filters, Phase Shifters, Oscillators, and Terminations, Isolators and  Circulators.

Surface Mounts & MMIC Devices


Ceramic  Thick Film Substrates. State of the art MMIC's, GaAs FET's, and  Discrete Devices. Surface Mount Custom and Standard RF Resistors,  Attenuators, Thermal Management Devices, couplers, dividers, and low  pass filters. Spiral Inductors, Microstrip Transmission Lines for microwave components

Custom Cables


Custom Cable Assemblies for OEM and test instruments All standard types of RF connectors, and between series adapters.

Waveguide Components


microwave Waveguide (WG) components: Bends, Straight, Flexible, Accessories, 

WG to Coax, WG to WG adapters, WG Terminations, WG Couplers, WG Filters,
WG  Power Combiners, WG Circulators & Isolators, High Power Pressure  Windows, Variable Power Combiners w/ Specs & App notes

Frequency Control & Generation


Quartz crystals, Clock oscillators, Automotive AEC-Q200/TS16949  crystals and oscillators, VCXOs, TCXOs, VCTCXOs, OCXOs, GPS disciplined  OCXOs and Rubidium oscillators, MEM’s TCXO, Ultra Miniature Oscillators.

State of the art VCO’s, Synthesizers, and up & down Converters, & test instruments



RF & microwave components Power Amplifiers and Test Systems 1 MHz to 18 GHz .01 watts to 1000 Watts

Instrument RF Power Amplifiers.