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Previewing Intel's Cognitive Radio Chip |
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Written by Kory Mohr
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Monday, 20 June 2005 |
Amended from Wi-Fi Planet:
While all-in-one chipsets supporting both 802.11b/g in the 2.4GHz radio
frequency band and 802.11a (in 5GHz) — sometimes called dual-band or
even tri-mode for the a/b/g support — have been around a long time, Intel this
week presented a paper and a test chip that includes all of the above
plus the future 802.11n standard. The single chip can also integrate
formerly extraneous components such as power amplifiers.
The technical paper was presented at the annual semi-conductor research Symposia on VLSI Technology and Circuits in Kyoto, Japan. It outlines how the chip giant will make the system-in-a-package using the low power CMOS (complementary metal oxide semiconductor) method with a 5GHz power amplifier meeting all requirements by the Federal Communications Commission (FCC).
"The key thing is that it's made using the CMOS process," says Manny
Vara, a technology strategist with Intel's R&D Labs. "It’s the same
process we use in our fabs [fabrication facility] to make Pentium 4 and
other microprocessors and chipsets." He says other materials, such as
Silicon Germanium (SiGe) are "lower volume and more expensive due to
the process and materials." He says, once you build something like this
in CMOS, you can integrate the features into other chips; he cites the
Level 2 cache built in to today's Pentiums as an example. |