Expert Microwave Engineering Consulting Services

SiberSci, LLC provides microwave engineering consulting for two kinds of work: troubleshooting and optimizing existing microwave hardware, and the research, design, development and optimization of new hardware. Services include theoretical analysis, design, fabrication, testing, validation and optimization of microwave devices, circuits, assemblies, subsystems and complete systems.

SiberSci's microwave engineering services cover hardware operating from 300 MHz to 30 GHz. Work above 30 GHz is handled through SiberSci's millimeter-wave engineering services, and lower-frequency work through its RF engineering services, so projects that span several bands can stay with one consultant.

SiberSci designs and optimizes microwave transmission lines (coaxial; rectangular, cylindrical, elliptic and ridged waveguide; microstrip, stripline, coplanar waveguide, and finline), filters (lowpass, highpass, bandpass, and band-reject), cavities and resonators, power combiners, and splitters, couplers, phase shifters, delay lines, impedance-matching networks, dielectric lenses, software-defined radio RF front ends, and beamforming networks. Signal integrity (SI) analysis and systems analysis are also offered.

Yes. SiberSci designs LDMOS, GaN, SiC, and GaAs power amplifiers, low-noise amplifiers (LNAs), and application-specific amplifiers, including load-pull optimization of active device performance. SiberSci also develops temperature-stabilized Gunn diode oscillators.

Yes. Optimizing the performance of existing microwave circuits is one of SiberSci's core services. SiberSci analyzes the existing hardware analytically and numerically to find why it is underperforming, then recommends and validates the design changes needed to meet the specification.

Yes. SiberSci reviews a client's performance specifications and size constraints and recommends one or more hardware configurations that can meet them, or evaluates a design concept the client has already proposed. The review documents the performance and physical limits of each concept and the modifications it needs. If part of a specification is physically impossible to achieve, SiberSci identifies it and recommends ways around the barrier.

SiberSci uses Ansys HFSS (Ansys Electronics Workbench), CST Microwave Studio (CST Studio Suite), FEKO, COMSOL, Sonnet, Keysight ADS, and Genesys. Clients can specify a particular tool if they provide a valid license or pay for contract access to it. Clients who are unsure which tool fits their project can have SiberSci recommend one.

A numerical simulation is only as accurate as its model parameters and boundary conditions, and errors are easy to miss. SiberSci checks every numerical simulation against analytical techniques before hardware is fabricated, which prevents clients from spending time and money building prototypes based on faulty simulation results.

Simulation accuracy depends on the frequency- and temperature-dependent properties of the metals and dielectrics used, such as complex permittivity, loss tangent, electrical conductivity, thermal conductivity, density and specific heat. SiberSci has laboratory and contract resources to measure these properties, and provides RF, microwave, millimeter-wave and THz dielectric characterization of the temperature-dependent complex permittivity and permeability of plasmas, powders, liquids and solids.

Yes. When you submit an inquiry, state that an NDA is required. SiberSci will provide an NDA for your review, negotiation, and amendment to protect your business-sensitive information, intellectual property (IP), and proprietary data before project details are shared.

Email Dr. Scott Best at scott_best@sibersci.com or call 270-228-4901 with your performance and size requirements. After reviewing them, SiberSci provides a budgetary quotation and schedule for the defined scope of work. Pricing is project-specific, and work begins once a contract has been negotiated and executed by both parties.

SiberSci, LLC is built on the professional experience of Dr. Scott Best, who has worked in both industry and government on electromagnetic engineering problems and laboratory measurements. SiberSci is listed in the IEEE-USA Consultants Database, is a BBB Accredited Business, and is based in Owensboro, Kentucky.