Ka - Band Linearization
نویسندگان
چکیده
The new Ka-band communications services require highly linear, high power amplifiers (HPAs). Traveling wave tube amplifiers (TWTAs) offer the best millimeter wave HPA performance in terms of power and efficiency, but are inferior to solid state power amplifiers (SSPAs) in linearity. This paper discusses techniques for improving millimeter wave HPA linearity. The significance and methods for evaluation of linearity are reviewed. The merits of various linearization methods are compared, typical performance presented, and trades between TWTA and SSPA linearization discussed.
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