Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Vectorially Combined Distributed Power Amplifiers for Software-Defined Radio Applications
AU - Narendra, K.
AU - Limiti, E.
AU - Paoloni, C.
AU - Collantes, J.-M.
AU - Jansen, R.
AU - Yarman, S.
PY - 2012/10
Y1 - 2012/10
N2 - A new technique for distributed power amplifier (DPA) design maximizing dc-RF conversion is presented. The topology is featured by the vectorial combination of the output current sources when the transistors are loaded by their distributed output networks. To verify the design concept, two prototype DPAs (a 600-mW pseudomorphic HEMT (pHEMT) DPA and a ~ 23-W pHEMT/GaN DPA) are designed, realized, built, and tested. To the authors' knowledge, the second DPA achieved state-of-the-art power performance (i.e., the combination of output power, gain, and efficiency) for DPAs within the frequency range up to 2 GHz, well suited for software-defined radio applications.
AB - A new technique for distributed power amplifier (DPA) design maximizing dc-RF conversion is presented. The topology is featured by the vectorial combination of the output current sources when the transistors are loaded by their distributed output networks. To verify the design concept, two prototype DPAs (a 600-mW pseudomorphic HEMT (pHEMT) DPA and a ~ 23-W pHEMT/GaN DPA) are designed, realized, built, and tested. To the authors' knowledge, the second DPA achieved state-of-the-art power performance (i.e., the combination of output power, gain, and efficiency) for DPAs within the frequency range up to 2 GHz, well suited for software-defined radio applications.
KW - Broadband performance
KW - GaN
KW - current combining technique
KW - distributed power amplifier (DPA)
KW - efficiency
KW - gain
KW - output power
KW - pseudomorphic HEMT (pHEMT)
U2 - 10.1109/TMTT.2012.2207914
DO - 10.1109/TMTT.2012.2207914
M3 - Journal article
VL - 60
SP - 3189
EP - 3200
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
SN - 0018-9480
IS - 10
ER -