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A single-fed low-profile millimeter-wave substrate-integrated waveguide (SIW) cavity-backed slot antenna for dual-band circular polarization (CP) applications is proposed. First, by employing two annular exponential slots carved on the surface of a circular SIW cavity, dual-band CP radiation is achieved. Two different modes, that is, the cavity mode and the surface mode, separately modulated by the...
In this paper, an indoor channel measurement campaign in conference room and corridor is introduced, using multi-dimension wideband channel sounder to obtain spatial channel characteristics at 25.5, 28, 37.5 and 39.5 GHz in various elevation angles. Due to proper separation of frequency, two multi-frequency path loss models considering cross polarization discrimination (XPD) factor are proposed to...
The channel measurement and modeling of large-scale fading effect of 45 GHz band in a typical living room are investigated in this paper. After conducting extensive automatic measurements, large-scale channel characteristics including path loss (PL) exponent, cross-polarization discrimination ratio (XPD) and standard deviation of shadow fading are obtained.
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