In this paper, a novel diode linearizer to keep the base voltage of SiGe HBT power amplifier (PA) constant in the large-signal region is introduced. The results show that the output P 1dB , and poweradded efficiency (PAE) are improved by 4.9 dBm and 22.8%, respectively. At an input power of 20 dBm,
A novel CPW power amplifier linearized by CCRC
✍ Scribed by T. T. Mo; Q. Xue; C. H. Chan
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 74 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A novel power amplifier incorporating a compact coplanar waveguide resonant cell (CCRC) is proposed. With the adjustment of the transmission line between the CCRC and the transistor, the second harmonic generated by the transistor can be partly canceled by the CCRC reflection at a suitable phase. Thus, the intermodulation level of the power amplifier can be improved. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 323–324, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11368
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