An Integrated Wideband Power Amplifier for Cognitive Radio

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-GH...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2007-10, Vol.55 (10), p.2053-2058
Main Authors: Chen, Y.-J.E., Li-Yuan Yang, Wei-Chin Yeh
Format: Article
Language:English
Subjects:
Amplifiers
Applied sciences
Broadband amplifiers
Circuit properties
Cognitive radio
Cognitive radio (CR)
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Filters
Frequency
frequency agile
Impedance
Indium gallium arsenide
Indium gallium arsenides
load-tracking
Microwaves
Network synthesis
Noise levels
PHEMTs
power amplifier (PA)
Power amplifiers
pseudomorphic HEMT (pHEMT)
Radio
Radiocommunication specific techniques
Radiocommunications
Radiofrequency amplifiers
software-defined radio (SDR)
Telecommunications
Telecommunications and information theory
Tracking
Wideband
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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-mum InGaAs pseudomorphic HEMT technology. Operated at 3.5 V, the P 1 dB and power-added efficiency of the PA are better than 21.4 dBm and 20%, respectively.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2007.906497