Abstract
We have investigated the microwave Doherty amplifier, testing for efficiency and linearity. For the experiment, a 1.4GHz Doherty amplifier has been implemented using a silicon LDMOSFET. The Doherty amplifier-I(a combination of a class B carrier amplifier and a class C peaking amplifier) and the Doherty amplifier-II(a combination of a class AB carrier amplifier and a class C peaking amplifier) have been compared with class B and AB amplifiers, respectively, using single-tone, two-tone, and forward-link CDMA signals. It demonstrated the superior performance of Doherty amplifiers. The results provide a topology selection guide of the CDMA base station power amplifier to achieve both linearity and efficiency enhancements.
| Original language | English |
|---|---|
| Pages (from-to) | 1367-1370 |
| Number of pages | 4 |
| Journal | IEEE MTT-S International Microwave Symposium Digest |
| Volume | 2 |
| DOIs | |
| State | Published - 2001 |
| Externally published | Yes |
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