Integrated complementary HBT microwave push-pull and Darlington amplifiers with p-n-p active loads. - Kevin W. Kobayashi; Donald K. Umemoto; James R. Velebir Jr.; Aaron K. Oki; Dwight C. Streit (IEEE J. Solid State Circuits, 1993)

GaAs HBT 0.75-5 GHz multifunctional microwave-analog variable gain amplifier. - Kevin W. Kobayashi; Kwan T. Ip; Aaron K. Oki; Donald K. Umemoto; Sahimwn Claxton; Matt Pope; Jerry Wiltz (IEEE J. Solid State Circuits, 1994)

A monolithically integrated HEMT-HBT low noise high linearity variable gain amplifier. - Kevin W. Kobayashi; Donald K. Umemoto; Thomas R. Block; Aaron K. Oki; Dwight C. Streit (IEEE J. Solid State Circuits, 1996)

A novel self-oscillating HEMT-HBT cascode VCO-mixer using an active tunable inductor. - Kevin W. Kobayashi; Aaron K. Oki; Donald K. Umemoto; Tomas Ray Block; Dwight C. Streit (IEEE J. Solid State Circuits, 1998)