Solid State RF Power Amplifiers, T/R Modules, RF Assemblies & RF Systems
KeyLink Microwave is a world-wide manufacturer specialized in the design and manufacturing of high power RF amplifier module & system. We provide broadband solid state power amplifiers (SSPA), narrowband microwave amplifiers, high power pulsed amplifiers, T/R modules, RF assemblies and RF systems etc. KeyLink supports the most stable ready-to-ship COTs radio frequency power amplifiers and the most technologically advanced OEM solutions for radar, jamming, communication, EMC, and other commercial and industrial market.
KeyLink’s RF power amplifier products cover frequencies from 1MHz to 46GHz with a variety of power ratings from several watts to kilowatts. Our high power radio frequency amplifiers and systems are engineered and produced to meet the most challenging performance requirements. KeyLink Microwave has been the preferred supplier in the worldwide radio frequency power amplifier industry and will always focus on your high performance RF microwave power amplifier application needs. In the future, we will never cease our step but seek deeper cooperation with our clients and reach higher level in technology. Join KeyLink, and work for the better.
In the field of RF high-power solid-state power amplifiers (SSPAs), exceptional performance and long-term reliability stem not only from advanced semiconductor technology but also rely on a fundamental yet critical component—the heat sink.
KeyLink is proud to announce the release of its next-generation KB4080M50B Series RF Power Amplifier Module, a high-performance solution engineered for critical applications requiring robust 100W output across the 4–8 GHz frequency band.
Last week's ExpoElectronica 2025 exhibition ended successfully. Thank you very much for your presence and support. At this exhibition, KeyLink's products were well received by customers, and we launched our new products strongly. If you want to know more, please feel free to contact us.
KeyLink will be closed for the International Workers' Day holiday from May 1st to May 5th, 2025. Normal business operations will resume on May 6th. We wish our new and returning customers to have a happy Labour Day!
Product Catalog Download rev. 2023
The catalog presents KeyLink's advanced production lines and superior R&D capability, which guarantee the excellent performance of RF amplifiers and RF systems. Also, the catalog lists all of KeyLink's CoTs and details RF power amplifiers and RF systems by bandwidth.
DOWNLOAD NOW2022 KeyLink Microwave Corporate Video
RF amplifier (Radio frequency amplifier)
Our RF amplifier modules include: broadband solid state RF power amplifiers with frequencies from 1.5MHz to 46GHz and output power ranges from 5W to 1000W; narrowband radio frequency power amplifiers with frequencies from 1MHz to 46GHz offering a wide dynamic range up to 200W typical saturated power; pulsed microwave amplifiers with frequency from 1MHz to 46GHz, the maximum output power can reach 2000W. In addition, CW RF systems can achieve up to 2000W of output power in the frequency range of 1.5MHz to 46GHz. All KeyLink solid state power amplifiers are CE, ISO9001, RoHS and REACH compliant to ensure product quality and stability.
Solid State Power Amplifier System
Solid state power amplifier system is an electronic amplifier which uses solid state devices including GaN, GaAs, LDMOS and bipolar device technologies for jamming, test and measurement, communication, radar and other RF and microwave industries. KeyLink provides broadband and narrowband, high power rf and microwave amplifier solutions to OEM systems.