ABSTRACT

The short millimeter wave has the frequency range of 100 to 300 GHz. One of the motivations for studying this range is to realize ultrahigh-speed communication. Data rates in both wireless and wireline communications are increasing every year, as shown in Figure 8.1.1 In particular, the progress in wireless communication has been much faster than that in wireline communication until recently. Currently, 60 GHz wireless communication,2-14 which is the most focused communication band in the millimeter-wave range, has been adopted as the high-speed wireless communication standard such as IEEE 802.11ad, which enables data rates of 6-7 Gbps. Since the increase in speed in wireless communication has been almost 10-fold every 4 years until now, 100 Gbps wireless will appear in around 2020, assuming the development is extrapolated into the future. To realize wireless communication at a higher speed than that of the 60 GHz one, we have to study wireless communication with higher carrier frequency than that with 60 GHz. This is one of the motivations of studying wireless communication with D-band, which is allocated in the lowest frequency band in short millimeter wave.