Addison, Texas - Yageo Corp. has expanded its line of miniature ceramic antennas with 433- and 870-MHz versions for low-data-transfer, unidirectional wireless communications systems such as wireless remote controls. The 870-MHz version measures 16.5 x 14 x 0.9 mm.
The surface-mount antennas are based on the low-temperature co-fired ceramic (LTCC) technology already used in Yageo's wideband full-performance antennas for Blue-tooth and wireless LAN applications. The ceramic is manufactured using a proprietary non-toxic, water-based production process with lead-free terminations, the company said.
The 433-MHz version, which measures 37.5 x 6.8 x 0.9 mm, may be used in applications such as TV and car-ignition key remote controls, remote fire detectors with a wireless link to computer-controlled alarm systems and wireless-based identification tags for routing luggage in airports. This antenna is also available in 460- and 490-MHz versions with the same dimensions.
Yageo says that its Phycomp-branded miniature LT-CC antennas offer several advantages over competitive technologies, such as etched and wire antennas. Since the ceramic antennas connect to the RF module on the board via a 50-ohm transmission line, they can be easily replaced without having to scrap the entire board if subsequent testing reveals a fault, the company said.
Pricing for the 433-MHz and 870-MHz antennas is approximately 72 to 88 cents per piece, depending on quantity. Delivery is four to six weeks.
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