Abstract
This paper describes a novel, low cost active bias control configuration for a multi-carrier UMTS power amplifier. It consists simply of a detector and a gain-controlled op-amp, which tracks the envelope of an RF input signal to modulate the bias supply current to a standard monolithic amplifier. Simulation results indicate that power efficiency is improved and IMD level is reduced.
| Original language | English |
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| Pages | 76-78 |
| Number of pages | 3 |
| Publication status | Published (in print/issue) - 1 Dec 2000 |
| Event | 5th IEEE High Frequency Postgraduate Colloquium - Dublin, Ireland Duration: 7 Sept 2000 → 8 Sept 2000 |
Conference
| Conference | 5th IEEE High Frequency Postgraduate Colloquium |
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| City | Dublin, Ireland |
| Period | 7/09/00 → 8/09/00 |