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The predistortion system for an ultrawideband transmitter


The UWB standard became increasingly popular platform for implementing short range high data rate communication in various types of consumer electronic products. The UWB standard offers an economically viable solution for the personal area multimedia communication networks providing ultra low power consumption and minimal interference with the existing wireless networks (such as WiFi, Blue Tooth, Cellular). The need to maintain low power consumption while providing a reliable link justifies the development of a RF Transmitter Predistortion Linearization System, especially at the upper part of the useful frequency band of 6-10GHz, where larger propagation path loss and antenna interconnect losses are anticipated. The proposed Tx Predistortion System allows an increase in the maximum usable linear power of the UWB transmitter on the order of 2-3dB. The digitally assisted analog baseband predistortion approach was chosen as cost and power efficient method suitable for the commercial UWB chipset. In this thesis named " The Predistortion System for an Ultrawideband Transmitter " Victor Korol reports design and performance of the transmitter linearization system using a baseband analog predistortion approach. The system is implemented as part of the commercial UWB transceiver chip in a 0.13um CMOS process

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