Industrial Solid State Microwave and RF Heating
Smart technology solutions.
We use advanced solid state microwave technology to maximize efficiencies and control. Designed by—and for—industrial microwave engineers, we have extensive expertise. With accurate precision and lower total cost of ownership, our microwave solutions are a smart choice.
Scalable, modular family of solid state microwave generators covering 433 MHz, 915MHz, 2.45GHz, and 5.8 GHz ISM Bands for Industrial applications
Building blocks from 250 W to 2.5 kW of intelligent power modules; configurable up from 1 kW to 100 kW total power
For scientific applications, such as RF energy source for particle accelerators, according to specific customer requirements, in the frequency range from VHF to 5.8 GHz, for powers up to several hundred kW
Crescend proudly offers High Power Solid State Microwave Generators and Amplifiers from 250 watts to hundreds of kilowatts between 10 MHz and 5.8 GHz.
We cover all ISM bands based on a common hardware and software architecture.
Powering our Solid State Microwave Generators:
High Power LDMOS RF and GaN power transistors
Continuous Wave (CW) and high-speed pulse modes
Precise control of output power, frequency and phase
Frequency agile over the entire ISM band
Comprehensive Windows-based use software
Automatic load matching/tuning
Long Mean Time to Failure (MTTF) lifetime RF transistors
Highly reliable and fault tolerant
Special functions for gas plasma generators
Our generators combine advanced solid state technology and patented software to create a powerful turn-key product suite for system integrators to easily integrate into existing and new systems.
We offer a frequency agile, high power generator and a powerful analytical instrument in one box.
System sizes covering 2.5kW to 100 kW on L-Band and from 1 kW to 16 kW on S-Band systems. All systems are frequency agile and capable of operating at cw or pulse.
Crescend has an established track record of working with system integrators, engineering design partners, and Tier 1 partners to delivery a microwave generator hardware and software suite designed for turn-key integration.
This is supported by Crescend's approach to building High Power (HP) and Very High Power (VHP) Solid State Amplifiers and Generators based on a building block that is a fully integrated rugged, high-performance, modular RF SSPA-Blade.
This highly reliable and efficient SSPA-Blade has it's own RF circuitry, control circuitry and cooling in a scalable configuration. The use of this engineering and mechanical concept allows us to configure manufacturable, repeatable, high -power amplifiers and generators in a expeditious manner.
A highly effective use of radio wave technology
Microwaves are radio waves that operate in discrete frequency bands; they are non-ionizing and non-nuclear. Unlike all other methods of heating—which begin heating from the surface and move inward—microwaves simultaneously penetrate all parts of the material so that heating occurs uniformly. This is called volumetric heating.
Microwaves produce heat by vibrating polarized molecules (usually water molecules), at almost a billion times per second. The resulting friction converts the radio waves to heat and vaporizes the water. Molecules of other non-polar substances, such as protein, fat and fiber, do not readily absorb microwave energy, and so they don’t heat up as much. This effect, combined with the evaporation of surrounding water, keeps the microwaved product cooler than in conventional gas-fired dryers. Since nearly all the RF heating energy applied removes water, unlike conventional dryers where a lot of the energy is lost heating air and steel, microwave RF drying is also more efficient. The dryers typically have 80%+ energy efficiency compared to round 50% for gas-fired rotary drum dryers.
Crescend high power solid state microwave generators serve Industrial, Scientific and Medical (ISM) applications:
Microwave Plasma Generation
Microwave Chemical Vapor Deposition (CVD)
Semiconductor Processing Equipment
Accelerators (Linear, Particle, Storage Rings, Ion Collider)
The Power of Solid State
Industrial microwave solid state vs. magnetron
Industry microwave users traditionally rely on magnetron technology for their power source. However, today’s users are turning to solid state solutions which provide significant advantages including precision power, frequency and phase control with ultra-fast response time. Solid state power provides pure, clean RF heating with a rated lifetime of over 500,000 hours of use, versus only the few thousand hours typical of a magnetron.
Powering our solid state microwave total solutions.
The competitive advantage to our industrial microwave solutions is PrecisePower™, our patented solid state software solution which includes a suite of services including 3D EM simulations, chamber design, system and process design, installation and commissioning.
The PrecisePower software solution complements our family of solid state power generators, and covers the two major ISM bands, 902-928 MHz (L-Band) and 2400-2500 MHz (S-band). Various system sizes are available, covering 2.5 kW to 100 kWs on the L-band systems and 1 to 12 kW on the S-Band systems. All systems are frequency agile and capable of operating either at a single fixed frequency, or in a frequency sweep mode that can cover the entire ISM band.
- Utilizes next generation high-power LDMOS RF power transistors
- Continuous wave (CW) and high-speed pulse modes
- Precise control of output power, frequency and phase
- Frequency agile over entire ISM bands
- Comprehensive Windows-based user software
- Automatic load matching/tuning
- Intelligent frequency hopping for optimal spatial field distribution in applicator
- Transistor lifetime over 500,000 operating hours
- Highly reliable and fault tolerant
- Special functions for gas plasma generators