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Extremely high data rate communication can potentially be achieved by combining high-order modulations and wide bandwidths at millimeter-wave (mm-wave) frequencies. However, it has been challenging to practically implement this combination, even if the SNR of the system appears to be sufficiently high. An explanation from a recent theoretical study is that the practical data rates in mm-wave systems...
An on-off keying (OOK) modulator and demodulator operating at carrier frequency from 100 GHz to 150 GHz are designed and manufactured in a 0.25 μm InP DHBT Technology. The modulator is based on a switch controlled frequency quadrupler, which is driven by input data and a sinusoid signal source. A power detector consisting of a 4-way power divider and four identical active power detector units is proposed...
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