应用文章
Mainstream Millimeter Wave
Just a decade ago it might have been hard to believe, but millimeter-frequency applications above 50 GHz are going mainstream. Wireless HD, 802.11ad wireless networking, 5G cellular, early 6G and automotive radar are high-profile examples of an important trend, supported by remarkable advances in semiconductor technology.
What industry trends are driving the move to millimeter wave frequencies? One of the key technology drivers is the high cost of lower-frequency spectrum. The more modest cost of wide chunks of contiguous spectrum at higher frequencies has economic appeal. Also, there is a public benefit to shifting existing traffic to higher frequencies to free up lower-frequency spectrum whenever possible.
Millimeter-wave products are becoming economically viable. Affordable retail prices are available for Wireless HD. Radar options are available on an increasing number of cars. Bringing this technology to the mass market at the price points required for largescale adoption poses tremendous challenges in design and manufacturing.
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