AN IEEE 802.15.4 COMPLIANT AND ZIGBEE-READY 2.4 GHz RF TRANSCEIVER

摘要

With numerous lucrative applications envisaged, the ZigBee Alliance is developing a standard-based wireless network platform, optimized for wireless monitoring and control applications, ensuring interoperability between products using the same application profile. The IEEE 802.15.4 standard, ratified in May 2003, specifies the physical (PHY) and medium access control (MAC) layers, while the ZigBee Alliance defines the network, security and application profile layers for an IEEE 802.15.4-based system. The 2.4 GHz PHY defined by IEEE 802.15.4 is highly attractive, as this unlicensed Industrial Scientific Medical (ISM) band is available worldwide for license exempt use. The typical applications targeted by IEEE 802.15.4/ZigBee are home and building automation, industrial monitoring and control, and wireless sensor networks. All of these applications need reliable and secure wireless communication links with low data rates, low complexity and low costs. Furthermore, low power consumption of the radio devices and the communication protocol is of the utmost importance as many systems are battery operated.