Microwave Solid State Generator

Frequency choice depends primarily on penetration depth and product size. The 915 MHz band penetrates deeper into thicker or denser materials, making it suitable for larger batch volumes or products where uniform heating through a thick cross-section matters. The 2450 MHz band, the same frequency used in domestic microwave ovens, penetrates less deeply but offers more precise, localised heating control, useful for smaller items or surface-focused processes like sterilisation. Kerone evaluates the dielectric properties, density, and geometry of the specific material during the engineering review to recommend the correct frequency rather than defaulting to one option. Choosing incorrectly can result in uneven heating, hot spots, or inefficient energy use, so this decision should be made jointly with the equipment supplier, not assumed in advance.

It is used for efficient processing, heating, drying or material transformation.

High efficiency, process reliability and complete customization.

Yes, Kerone offers fully customized engineering solutions.

Food, chemical, pharma, biomass, rubber, textile and more.

Kerone ensures high product quality through strict engineering standards, advanced testing procedures, and precision-controlled manufacturing systems.

Unlike magnetrons, solid state generators offer continuous frequency tuning, amplitude modulation, much longer operational life, instant-on capability, and real-time impedance matching.

Kerone offers solid state generators at 915 MHz and 2450 MHz, which are the standard ISM band frequencies used in industrial microwave applications.

Power outputs range from 100 W to over 100 kW through parallel power combining architectures, making them suitable for a wide range of industrial applications.

Magnetron tubes degrade with use, lose output power gradually, and typically need replacement every few thousand hours, making them a recurring maintenance cost. Solid-state generators use semiconductor transistors or diodes instead of vacuum tube technology, which gives them a substantially longer operational life with minimal performance drift over time. They also start instantly with no warm-up delay, allow continuous frequency tuning and real-time impedance matching, and produce more stable, lower-noise output. For industrial manufacturing operations running multiple shifts, the reduction in unplanned downtime and replacement parts often offsets the higher initial investment within a few years. Buyers should weigh total lifecycle cost, not just sticker price, when comparing solid-state against legacy magnetron-based heating systems.

As a product's moisture content, density, or temperature changes during processing, the load it presents to the microwave generator also changes, which can cause reflected power and energy losses if the generator doesn't adapt. Solid-state generators continuously monitor this changing load and adjust output in real time to maintain efficient power transfer into the material, rather than wasting energy as reflected power that magnetron systems often cannot correct for dynamically. This translates into more consistent heating from the start to the end of a batch, fewer cold spots or scorched areas, and better repeatability between production runs. For quality-sensitive industries like pharmaceuticals, this real-time adaptability is often the deciding factor over older fixed-output generator technology.

Yes, through parallel power combining, where multiple solid-state modules work together to reach the required output, rather than relying on one large single-source tube. This architecture allows power levels to scale from around 100 watts for laboratory and pilot trials up to over 100 kilowatts for full industrial production lines. Because each module operates somewhat independently, a single module failure typically results in graceful power reduction rather than complete system shutdown, improving uptime compared to a single large magnetron failing outright. This modular scalability also means a plant can start with a smaller system and add capacity later as production volumes grow, without needing to replace the entire generator architecture from scratch.

Amplitude modulation allows the generator to vary microwave power smoothly within a single processing cycle rather than switching power on and off at fixed levels, which is how many magnetron-based systems regulate output. This smoother control reduces thermal shock to delicate materials, helps prevent localized overheating as moisture content drops during a drying or heating cycle, and supports more sophisticated process recipes where power needs to ramp up or down gradually. For pharmaceutical powders, food ingredients, or other materials sensitive to thermal stress, this finer control over energy delivery directly improves product consistency and reduces rejection rates compared to coarser on-off power control common in older generator technology.