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We have developed a design method for space-saving and wide passband band-pass filter (BPF) for 60-GHz band applications. The BPF comprises multilayer-coupled stripline resonators on a multilayer low temperature co-fired ceramic (LTCC) substrate and can be highly integrated into a millimeter-wave system-on-package that is suitable for 60 GHz-band wireless communication applications. The proposed design...
Various technologies have been put to practical use for high-speed wireless communications systems. For short transmission distances, we have found that the application of spatial parallel transmission using a number of antenna arrays is particularly effective in microwave frequency bands. This report describes how we were able to raise channel capacity in short-distance communication considerably...
This paper demonstrates the low-power operation of an InP HEMT V-band low-noise amplifier (LNA) MMIC. The device used here is a commercial 0.1-mum InP HEMT developed for high-speed digital ICs. The fabricated two-stage LNA MMIC, chip size of 0.9 mm2, employs two 50-mum gate-width InP HEMTs and coplanar waveguides. Under 0.4 V supply voltage operation, the MMIC achieves a noise figure of 2.86 dB at...
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