ABSTRACT
Short-range communication systems known as wireless personal area network systems with ranges of up to 10 m are becoming popular for replacing cables and enabling new consumer applications. Systems such as Bluetooth and Zigbee, which operate in the 2.4 GHz industrial-scientific-medical band, have a limited data rate, typically about 1 Mbps, which is insufficient for many applications, such as fast transfer of large files and high-quality video streaming. To increase the data rate to several hundreds of Mbps, a higher bandwidth is preferred over a larger signal-to-noise ratio. Coexistence with present cellular communication devices operating under the global system for mobile communication, personal communication services, or code division multiple access mode is almost mandatory. The challenge of realizing a radio for ultra wideband systems is already apparent from the name: ultra-wide bandwidth. Distributed amplifiers naturally achieve wideband behavior.
