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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bathich, K. Gruner, D. Boeck, G. |
| Copyright Year | 2011 |
| Description | Author affiliation: Microwave Engineering Lab, Berlin Institute of Technology Einsteinufer 25, D-10587, Berlin, Germany (Bathich, K.; Gruner, D.; Boeck, G.) |
| Abstract | A dual-band Doherty amplifier architecture is proposed and analysed. The amplifier architecture comprises a modified output combining network which results in a compact and effective design. For verification, a dual-band Doherty power amplifier (PA) was designed and implemented. Large-signal measurements highlighted the dual-band Doherty behavior of the designed PA with 6-dB output back-off efficiencies of η=49 % and η=44 %, measured at 2.0 GHz and 2.72 GHz, respectively. The designed Doherty PA was also tested with Universal Mobile Telecommunications System (UMTS) and Long Term Evolution (LTE) signals. Adjacent-channel leakage ratio (ACLR) levels of −44 dBc and −40 dBc were achieved at 2.0 GHz and 2.72 GHz, respectively, using digital pre-distortion (DPD) linearization. The corresponding efficiencies at 2.0 GHz and 2.72 GHz were η=46 % and η=37 %, respectively, with average output power of 36 dBm. |
| Starting Page | 248 |
| Ending Page | 251 |
| File Size | 362808 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781612842363 |
| e-ISBN | 9782874870231 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-10-10 |
| Publisher Place | United Kingdom |
| Access Restriction | Subscribed |
| Rights Holder | EUROPEAN MICROWAVE ASSOC |
| Subject Keyword | multi-band base stations dual band Dual band Power amplifiers Microwave communication Microwave amplifiers Doherty amplifier Impedance Power generation GaN HEMT |
| Content Type | Text |
| Resource Type | Article |
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