RF Micro Devices, Inc. (Nasdaq:RFMD), a global leader in the design and manufacture of high-performance radio frequency components and compound semiconductor technologies, reported that it has teamed with Silicon Laboratories, Inc. (Nasdaq:SLAB) to deliver Sub-GHz solutions for a broad range of smart grid applications.

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Air Methods Corporation (Nasdaq:AIRM) previously reported results for the quarter ended September 30, 2011. Revenue increased 20% to $185.2 million from $153.9 million in the year-ago quarter. For the nine-month period, revenue increased 14% to $467.2 million, up from $411.6 million in the prior-year nine-month period.