Raditek SSPA amplifiers use field-effect transistors to supply amplification at frequencies 1MHz to 96GHz. Solid State Power Amplifier (SSPA) were developed for use in the most sensitive applications, including Satellite Communications (satcom) Airborne, Radars and Terrestrial Communications including HF, VHF, Wi-Fi, microwave and milliwave point to point links
Advantages of SSPA
• High performance
• Cost-effective modes replacement in applications which are currently using Traveling Wave Tube Amplifiers.
RF of the Amplifiers
• A tuned amplifier that amplifies high-frequency signals used in radio communications is called a radio frequency amplifier, or RF amplifier.
• Pre-amplified and several parallel symmetric branches make up the RF input to the solid state power amplifier.
• SSPA combining many parallel amplifier sections results in built-in redundancy because of this distributed design.
• A current sense alarm indication can be monitored and fed to the RF SSPA controller.
• The amplified results of all the symmetric branches are added up in a combing network which routes the resultant high power to the output of the RF SSPA.
SSPA Amplifier GaAs and GaN
• Gallium Arsenide (GaAs) and Gallium Nitrate (GaN) are the basic SSPA amplifiers currently used.
• These are the devices that do the actual amplification.
• GaAs has the best linearity whereas GaN has the best efficiency.
• Solid-State devices such as GaAs FETs, IMPATT diodes, Gallium Nitrate GaN IMFETS and many more devices are for Microwave Amplification.
Different models of SSPA Solid State Power Amplifiers• Modules Family – 1 MHz to 96GHz
• 19″ Rack Mount Family – 1.5 MHz to 18 GHz
• SSPA HF and ISM Bands up to 5 Kilowatts
• Low Noise Amplifier (LNA)