Abstract
A W-band two-stage amplifier MMIC has been developed using a InP-based high electron mobility transistor (HEMT) technology. The two-stage amplifier has been realized in combination with coplanar waveguide topology and cascode transistors, thus leading to a compact chip-size of 1.85 mm×0.932 mm and an excellent small-signal gain of 25.7 dB at 106 GHz. The successful design of the two-stage amplifier MMIC indicates the InP HEMT technology has a great potential for W-band applications.
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