Broadband Amplifier Gain Slope Equalization with a Single Passive Component

Abstract

With the new and This article describes the increasing performance of a newly-demand of the developed component Internet and multimedia intended for amplifier gain on the commercial side, slope equalization over fre- and the broadband high quency and temperature data rate communications links on the aerospace and military side, RF and microwave amplifiers are being used in many broadband applications in the 2 to 20 GHz range. Gallium Arsenide (GaAs) monolithic microwave integrated circuit (MMIC) amplifiers lose gain with increasing temperature and increase in gain with decreasing temperature. The ratio of gain change/ºC tends to increase with frequency, making it difficult to compensate the amplifiers in a chain and causing unwanted equalization effects. There are three variables which must be considered when designing GaAs amplifier lineups: gain, gain slope versus frequency, and gain variation versus temperature.