W-band single-layer vertical transitions
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Vertical single-layer transitions operating at W-band frequencies have been developed. The designs are uniplanar, use electromagnetic coupling, and do not require via holes or air bridges. The first transition uses coplanar-waveguide-mode coupling and results in an insertion loss of better than 0.6 dB over the whole band, with a loss of 0.25 dB from 85 to 110 GHz. The return loss is better than -10 dB from 75 to 110 GHz. The second transition uses microstrip-mode coupling and results in a 0.2-dB insertion loss over the whole W-band. These transitions can prove very useful for millimeter-wave packaging and vertical interconnects.
IEEE Transactions on Microwave Theory and Techniques
author list (cited authors)
Raskin, J., Gauthier, G., Katehi, L. P., & Rebeiz, G. M.
complete list of authors
Raskin, J-P||Gauthier, G||Katehi, LP||Rebeiz, GM