Solid State RF Power Amplifier Modules & Microwave Amplifier Systems
KeyLink Microwave is a world-wide specialized manufacture in the design and manufacturing of high power RF amplifiers module & systems. We provide broadband solid state power amplifier (SSPA), narrowband microwave amplifiers, high power pulsed amplifiers, and RF power amplifier systems etc. KeyLink supports the most stable ready-to-ship COT's radio frequency power amplifiers and the most technologically advanced OEM solutions for radar, jamming, communication, system, test and measurement, and other commercial and industrial market.
KeyLink’s RF power amplifier products cover frequencies from 1MHz to 18GHz with a variety of power ratings from several watts to kilo-watts. 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 amplifiers application needs.
The RF wideband amplifier subsystem KB0727S52A from KeyLink Microwave is a rack-mountable unit incorporating a universal voltage power supply and a built-in forced air-cooling amplifier system. This wideband amplifier subsystem operates from 700 MHz to 2700 MHz. It can handle an input power of up to 150 W and has a 50 ohm input/output impedance.
RF solid state power amplifier, which is basically the positive feedback system in our RF system, is generally located on the transmission chain. Considering the link attenuation of wireless transmission, the transmitter needs to radiate enough power to obtain a relatively long communication distance. Therefore, the radio frequency amplifier is mainly responsible for amplifying the power to be large enough and then feeding it to the antenna for radiation. It is the core device in the communication system.
Come and join us to share the joy of success! To better payback customers' continuous support and trust, we are providing special offer for all regular-priced COTS RF amplifiers, some even up to 40% off. Awesome Anniversary deals will run from May 5th to May 31st, 2022. So, mark these dates on your calendars!
Amplifiers are an essential component in RF and RF systems which can be divided into low noise amplifiers, high gain amplifiers, medium power amplifiers and high power amplifiers. It can be classified into class A, AB, B, C according to their construction and operating characteristics.

Product Catalog Download rev. 2017
The catalog presents Keylink's capability of advanced production line and superior R&D, which guarantees 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 NOWRF amplifier (Radio frequency amplifier)
Our RF amplifier modules include: broadband solid state RF power amplifiers with frequencies from 1MHz to 18GHz and output power ranges from 5W to 1000W, narrowband radio frequency power amplifiers with frequencies from 100MHz to 14GHz offering a wide dynamic range up to 200W typical saturated power, pulsed microwave amplifiers with frequency from 1MHz to 18GHz, the maximum output power can reach 2000W. In addition, CW RF systems can achieve up to 500W of output power in the frequency range of 1MHz to 18GHz. All KeyLink solid state power amplifiers are CE, ISO9001, RoHS and REACH compliant to ensure product quality and stability.