AUG, 2010 ·
Close proximity wireless communication technology is nothing new; it is currently being incorporated into contact less smartcards; however further adoption of this technology for small equipment has been a issue, due to requirement of a large antenna area of credit card size, in order to achieve a sufficiently small noise level as well as high tolerance for misalignment between the transmitter chip and receiver chip. In response to this technical challenge, Renesas Electronics has successfully, developed a close proximity wireless communication technology requiring an antenna of only 1mm in diameter, making it ideal for on-chip integration, where a short-range data transmission of within 1cm distance can be achieved. The new technology will eliminated any needs for metal connectors in small terminal devices such as memory cards as well as wires in hinges of mobile terminal devices, where previously contactless communication has been difficult to achieve. Renesas has developed a prototype transceiver chip based on this technology, with an integrated antenna capable of transmission speed of 15 megabits per second, at par with data rate that is required for high definition terrestrial TV transmission. Furthermore, the new technology can also eliminate any needs for large size power consuming phase locked loop (PLL) within the receiver part, since the receiver does not need to generate any synchronization signals, resulting in reduced power consumption on the receiver side by approximately 50% in comparison to conventional design.
