Coplanar waveguide InP-based HEMT MMICs for microwave and millimeter wave applications

Chia-Shing Chou; K. Litvin; Larry E. Larson; Steven E. Rosenbaum; Loi D. Nguyen; Umesh K. Mishra; Mark Lui; M. Thompson; Catherine M. H. Ngo; M. Melendes

doi:10.1117/12.44490

1 July 1991 Coplanar waveguide InP-based HEMT MMICs for microwave and millimeter wave applications

Chia-Shing Chou, K. Litvin, Larry E. Larson, Steven E. Rosenbaum, Loi D. Nguyen, Umesh K. Mishra, Mark Lui, M. Thompson, Catherine M. H. Ngo, M. Melendes

Author Affiliations +

Proceedings Volume 1475, Monolithic Microwave Integrated Circuits for Sensors, Radar, and Communications Systems; (1991) https://doi.org/10.1117/12.44490
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

We have developed and fabricated a variety of single-stage coplanar waveguide MMIC amplifiers based on our InP-based AlInAs/GaInAs HEMT device technology. The measured f(t) of 0.15-micron devices was 120 GHz and fmax was 200 GHz. The dc transconductance was greater than 720 mS/mm. The 12-GHz single-stage MMIC amplifier had a noise figure of 1.3 dB with an associated gain of 16.0 dB. A 35 GHz single-stage amplifier had a measured gain of 10.9 dB and a measured input return loss of -14.4 dB. A 60 GHz single-stage amplifier had a measured gain of 8.4 dB and a measured input return loss of -18.4 dB.

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Chia-Shing Chou, K. Litvin, Larry E. Larson, Steven E. Rosenbaum, Loi D. Nguyen, Umesh K. Mishra, Mark Lui, M. Thompson, Catherine M. H. Ngo, and M. Melendes "Coplanar waveguide InP-based HEMT MMICs for microwave and millimeter wave applications", Proc. SPIE 1475, Monolithic Microwave Integrated Circuits for Sensors, Radar, and Communications Systems, (1 July 1991); https://doi.org/10.1117/12.44490

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