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An integrated wideband power amplifier for cognitive radio
- Source :
- IEEE Transactions on Microwave Theory and Techniques. Oct, 2007, Vol. 55 Issue 10, p2053, 6 p.
- Publication Year :
- 2007
-
Abstract
- This paper presents the development of the wideband power amplifier (PA) for application to intelligent cognitive radios. The load-tracking based on the frequency-varied load-pull technique is proposed for the PA design. The load impedance tracking is realized by filter network synthesis. A 3-7.5-GHz broadband PA is demonstrated in 0.15-[micro]m InGaAs pseudomorphic HEMT technology. Operated at 3.5 V, the [P.sub.1 dB] and power-added efficiency of the PA are better than 21.4 dBm and 20%, respectively. Index Terms--Cognitive radio (CR), frequency agile, load-tracking, power amplifier (PA), pseudomorphic HEMT (pHEMT), software-defined radio (SDR), wideband.
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 55
- Issue :
- 10
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Microwave Theory and Techniques
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.172168318