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In this paper, a distributed active transformer for the operation in the millimeter-wave frequency range is presented. The transformer utilizes stacked coupled wires as opposed to slab inductors to achieve a high coupling factor of k<sub>f</sub>=0.8 at 60 GHz. Scalable and compact equivalent-circuit models are used for the transformer design without the(More)
A compact modeling approach for silicon-chip slow-wave transmission lines with slotted bottom metal ground planes is studied and its limitations are presented. The modeling approach facilitates the calculation of the slow-wave transmission line parameters based upon the corresponding coplanar and grounded coplanar transmission-line parameters. The described(More)
A 25 GHz low noise amplifier using standard 0.18 mum digital CMOS technology is presented. Matching networks were based upon slow wave transmissions lines. Peak gain of 12.8 dB at 24 GHz and in-band minimum noise figure less than 4 dB were obtained at a power consumption of 8 mW. These record results demonstrate the usefulness of the slow wave transmission(More)
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