Bandwidth consumption continues unabated for communications, security, transportation, and other applications at frequencies below about 30 GHz, which is approximately where microwave frequencies end and millimeter-wave (mmWave) frequencies begin. As a result, developers for emerging applications such as automotive radar systems, vehicle-to-vehicle (V2V) communications, and vehicle-to-everything (V2X) communications are looking to 24 GHz and beyond to find usable bandwidth with reasonable propagation distances.
Frequency spectrum is being gobbled up as fast as each new wireless application. The masses have growing appetites for wireless connectivity, including via Internet of Things (IoT) technology and in autonomous cars on smart highways in smart cities. And with bandwidth going quickly at frequencies to about 30 GHz, design engineers are turning to higher frequencies in the mmWave range.