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Impinj Releases Compact High-Performance EPC RFID Portal
The Speedway xPortal, designed for retail settings, offices, hospitals or other indoor environments, achieves high tag read rates, thanks in large part to its integrated Dual Linear Phased-Array antenna.
Apr 06, 2010—Impinj, a provider of passive ultrahigh-frequency (UHF) RFID technology, has unveiled a new UHF EPC Gen 2 interrogator, the Speedway xPortal, as well as a new reader antenna, the Dual-Linear Phased Array (DLPA). The xPortal, which includes an integrated DLPA antenna, is designed to be smaller and less expensive to install and operate than existing portal readers, which are used in doorways and other portals through which tagged items or individuals with ID badges pass. The company claims the xPortal will save users an average of $1,000 per doorway, requiring no AC power cabling and being less expensive to ship. What's more, Impinj reports, the device offers a high read rate.
The xPortal weighs 10 pounds, stands approximately two and a half feet tall and measures 8 inches wide by 2 inches deep. The device is designed to have a low profile while maintaining high performance, says Daniel Bowman, Impinj's senior marketing manager. The design of the antenna and reader itself allows the xPortal to consume less than 13 watts, he says, enabling it to be powered over Ethernet. This means an Ethernet cable is all that needs to be installed with the reader. Traditional portal readers draw 25 to 40 watts, Stelter notes. And while there are other interrogators that can be powered over Ethernet, he adds, the performance (read rate) is not as high as that offered by the xPortal. That read rate varies, though, he says, according to the environment and the items being tagged, it is in the very high 90th percentile. "In testing at a pilot retail customer," Stelter says, "using the xPortal improved read reliability 1 to 13 percent, depending on the product [being tagged], versus a standard Speedway Revolution reader with off-the-shelf far-field antennas in traditional steel portal stands."
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