The RF Power Amplifier (RFPA) is an essential component of all commercial and military radio systems, but is also typically the largest in size and the greatest consumer of electrical energy. A large percentage of the electrical power supplied to an RF amplifier is wasted in the form of heat, with only ten to forty percent of the DC input power converted into useful RF power. Furthermore, RF power amplifiers operate most efficiently in saturation; however, in this operation mode the output signal is distorted by the amplifier’s non-linearities, and no longer accurately represents the input signal.
A clear, undistorted signal from the amplifier output is of the utmost importance in modern radio systems, as this distortion quickly and significantly reduces the data rate and performance of the system’s radio link. Therefore, all modern radio systems have to operate their amplifiers at a certain level of “back-off” from saturation, which sacrifices efficiency considerably but ensures that the output signal distortion is kept to tolerable levels.
Triad RF Systems’ core competency is the ability to design and manufacture RFPAs utilizing its vast knowledge to optimize both the efficiency and linearity for the requirement at hand. We have decades of experience in designing with all types of semi-conductors including GaN, GaAs and LDMOS, while at the same time, we can implement complex analog and digital pre-distortion circuitry to make the amplifier more linear while maximizing the efficiency. In addition, over the past 20 years, the owners have been involved in the sales, design, manufacture and support of tens of thousands of units operating in the field today. We know how to produce user-friendly, reliable RFPA products that are suited for both low and high volume manufacture.