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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Raab, F.H. Poppe, M.C. |
| Copyright Year | 2010 |
| Description | Author affiliation: Green Mountain Radio Research Colchester VT, USA (Raab, F.H.) || Martin Poppe Associates, Burlington, VT, USA (Poppe, M.C.) |
| Abstract | This Kahn-technique (Envelope Elimination and Restoration) transmitter operates at 1.2 GHz and produces a PEP output of 50 W. It employs a GaN-HEMT class-F RF-power amplifier, class-S modulators, and a digital signal processor. An overall (driver + final) efficiency of 50 percent or more is maintained over the top 6 dB of the output range. The driver and final are operated to maximize overall efficiency and the predistortion corrects for amplitude and phase errors. While originally intended for pulsed radar applications, the transmitter is capable of producing a wide variety of signals with good linearity and average efficiency. |
| Starting Page | 100 |
| Ending Page | 103 |
| File Size | 167938 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424447251 |
| DOI | 10.1109/RWS.2010.5434114 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-01-10 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transmitters L-band Driver circuits Signal restoration Digital modulation Digital signal processors Predistortion Error correction Radar applications Linearity L band Microwave power amplifiers. class F Kahn technique transmitters predistortion GaN |
| Content Type | Text |
| Resource Type | Article |
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