A 94-ghz Radar For Space Object Identification

High-resolution instrumentation radar

“…The large time-bandwidth product, 4 x 106, of the waveform used in this system demands excellent waveform linearity over the full bandwidth to achieve the full potential range resolution. In the development of the system, the microwave components beyond the electronics should be measured to assure that they are well matched, with minimal phase The phase linearization circuitry is similar to that developed earlier for a 94-GHz radar 4 that had a I-GHz bandwidth and a time-bandwidth product of 106. Such circuitry is necessary for broad-bandwidth waveforms, as the 13 p -P " " "" --' "-" " """ ' " """ """" """" """" ' ',liii ."…”

Millimeter-Wave Communications: Physical Channel Models, Design Considerations, Antenna Constructions, and Link-Budget

“…Furthermore, we explicitly detail in Figure 2 the "Channel Modeling" roundabout, its entrances and exits, which is the main contribution of this survey, where each of the roundabout's entrance constitutes a notable aspect of the modeling efforts, such as the "Channel Measurements", "Frequency Selection", "Modeling Method", "Scenario Selection", "Characteristics" and "Environment" roundabouts associated with the "Channel Modeling" roundabout. The mmWave spectrum has already been employed for many applications, such as for example radio astronomy [18], radars [19], military [20], [21], satellite communications [22], [23] and point-topoint (PTP) communication applications [6], [24]- [26], but not for commercial wireless networks. Recently, however it has been used for short range communications [9], [11], [14], [27], mobile broadband networks [6], [15] and PTP networks [28]- [30].…”