Highly linear and compact MMW phased array transmitters [MMIC power amplifiers]

In this paper, we describe more extensive linearity measurements (OIP3, NPR, ACPR) of multistage compact MMIC power amplifiers for future phased array transmitters at MMW frequencies. As an example, extremely high 500 mW/mm P1dB with 24% PAE at P1dB (peak PAE of 30% at Psat) and greater than 4 W/mm...

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Bibliographic Details
Published in25th Annual Technical Digest 2003. IEEE Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003 pp. 101 - 104
Main Authors Lai, R., Siddiqui, M., Pitman, B., Nishimoto, M., Johnson, K., Din, S., Fordham, D., Schreyer, G., Grundbacher, R., Callejo, L., Streit, D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Frequency measurement
HEMTs
High power amplifiers
Linearity
MMICs
Phase measurement
Phased arrays
Power amplifiers
Power measurement
Transmitters
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Summary:In this paper, we describe more extensive linearity measurements (OIP3, NPR, ACPR) of multistage compact MMIC power amplifiers for future phased array transmitters at MMW frequencies. As an example, extremely high 500 mW/mm P1dB with 24% PAE at P1dB (peak PAE of 30% at Psat) and greater than 4 W/mm OIP3 were achieved on a 24-27 GHz HEMT MMIC with a compact size of 5.88 mm/sup 2/. ACPR (-37 to -40 dB) and NPR tests (>18 dB at OBO of 4.5 dB) confirm the linearity and power capability of the technology. These MMICs provide leveraging performance for highly linear single beam and multibeam phased arrays for satellite, airborne and ground communication links.
ISBN:0780378334
9780780378339
ISSN:1064-7775
2379-5638
DOI:10.1109/GAAS.2003.1252373