BofA Global Research analyst Vivek Arya advises savvy investors that with 5G wireless mobile phones on the way, the time has come to buy shares of the key radio component vendors.

Arya recently issued a “double upgrade” of both Skyworks Solutions (SWKS) and Qorvo (QRVO) to buy from underperform, Barron's reported.

He also lifted his price target for Skyworks to $122 from $92, and for Qorvo to $130 from $90.

He also repeated a buy rating on Broadcom (AVGO), which he also expects to benefit from the growth in 5G handsets.

5G is short for fifth-generation wireless network. This new technology will let phones and computers communicate 1,000 times faster than 4G — enabling everything from remote surgery to self-driving cars.

In order to get 5G fully up and running, the U.S. needs 300,000 new cell towers. These towers form the physical foundation of the 5G network. So they’re absolutely essential.

“In our view, 5G could prove to be one of the more compelling and investible themes in semis, driven by the exponential growth in components required to upgrade ~1.4 billion 4G smartphones and several hundred million IoT [Internet of Things] devices,” Arya writes in a research note.

“Radio Frequency chips will be a critical enabling technology to help monetize expensive spectrum and enhance battery life.”

U.S. carriers are vying to become leaders in 5G, hoping to capture early adopters and the first wave of new revenue. But the arrival of full-fledged 5G service -- with as much as 100 times faster speeds and nearly zero lag time -- is still a few years away.

The initial 5G service with low-band spectrum can deliver performance that’s comparable to the current T-Mobile network. But like all the other wireless operators, T-Mobile will follow up in the coming months and years with higher-frequency signals to move data faster and provide greater network capacity.