TWTA Linearization
نویسنده
چکیده
New communications services have created a demand for highly linear high power amplifiers (HPA's). TWTA's continue to offer the best microwave HPA performance in terms of power, efficiency, size and cost, but lag behing solid state power amplifiers (SSAPs) in linearity. This paper discusses techniques for improving TWTA linearity. The significance and methods for evaluation of linearity are reviewed, and the merits of various linearization methods compared. The use of predistortion linearization is shown to provide TWTA performance comparable or superior to conventional SSPA's.
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