The Research on Microwave Gain Equalizer

As the rapid development scientific and technological, the power transmitters which are in modern communications and radar systems are put forward increasing challenge. Higher output power and emission efficiency, better gain flatness, more economical cost have become the development trends of microwave power amplifiers in the radar systems. In other words, power amplifier module should have the characteristics of low cost, superior performance and high reliability in order to meet the needs of a variety of environments. Microwave gain equalizer is a good solution to high-power traveling wave tube which gain is not flat. It is playing an increasingly important role in radar systems. In this paper, we carried out more detailed research and feasibility studies about microwave gain equalizer. Then we had designed and tested two microwave gain equalizer.Based on microstrip transmission line theory and microwave gain equalizer theory, we had designed a microwave gain equalizer in 2⁶ GHz which used in Microwave Power Module（MPM） make use of ADS and HFSS（High Frequency System Simulator） in this paper.