Six-finger Lange coupler on 3 mil GaAs substrate using multilayer MMIC technology

This paper presents the design and test data for six-finger Lange couplers on a 3 mil GaAs substrate using the multilayer MMIC process. We achieved coupling of 3.3±0.5 dB, isolation greater than 20 dB, and return loss better than 15 dB over most of the 8–16 GHz frequency range. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 322–327, 2001.

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