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IEEE Microwave and Guided Wave Letters
Volume 10 Number 5, May 2000

Table of Contents for this issue

Complete paper in PDF format

W-Band Cascode Amplifier Modules for Passive Imaging Applications

Axel Tessmann, William H. Haydl, Markus Neumann and Jürgen Rüdiger

Page 189.

Abstract:

W-band amplifier modules with high gain and large bandwidth have been developed for passive imaging applications. With three cascaded waveguide modules, an average small-signal gain of 60 dB and a ± 3 dB bandwidth of 15 GHz was achieved centered around 94 GHz. The assembled three-stage amplifier monolithic microwave integrated circuits are realized in coplanar technology for compact size and low cost. Cascode devices, based on a 0.15 µm AlGaAs/InGaAs/GaAs pseudomorphic high electron mobility transistor technology, allow for individual gain control of the stages by varying the second gate voltage.

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