Antennas Enable Simultaneous Wi-Fi and Bluetooth Operation in Netbooks
Mon, 12/14/2009 - 11:48am
SkyCross has expanded personal connectivity and improved end-user satisfaction by enabling Wi-Fi and Bluetooth to operate simultaneously in netbooks. Because 802.11 b/g/n and Bluetooth operate at 2.4 GHz, interference between the two RF signals previously made using both functions at the same time nearly impossible, particularly when the two antennas were in close proximity inside a device.
Today's chipsets and Wi-Fi/Bluetooth combo Mini-Cards are capable of supporting both operations simultaneously, so the antenna has been the industry's roadblock. Now, iMAT® from SkyCross is the industry's first single-antenna solution that offers greater than 35 dB of isolation between Wi-Fi and Bluetooth to enable coexistence even in compact devices such as netbooks.
SkyCross solves the Wi-Fi and Bluetooth coexistence challenge with its advanced iMAT technology. iMAT is a design technique enabling a single antenna element with multiple feed points to behave like multiple antennas, each with very high isolation. iMAT has multiple benefits: it can consolidate the number of antennas required in a device, reduce the specific absorption rate (SAR), eliminate RF components, and more.
In this instance, iMAT enables a single antenna to have one feed dedicated to Wi-Fi and another feed shared with Bluetooth, which uses the chipset providers' time-sharing and adaptive frequency hopping algorithms. The very high, built-in isolation between the two feeds enables both to operate at the same time in a very small space. In addition, the iMAT single-antenna solution reduces the number of conventional antennas by a factor of three, which reduces antenna space and system cost in netbooks to facilitate supporting 3G features.