Title :
High data-rate millimetre-wave modulator modelling and design
Author :
Limiti, Ernesto ; Arena, Sergio ; Cavanna, Tommaso ; Testa, Filippo
Author_Institution :
Dipt. di Ing. Elettron., Univ. di Roma Tor Vergata, Rome, Italy
Abstract :
In this paper a linear and nonlinear model for microwave modulator has been realized and discussed. The model is thought to be applied to modern high data rate digital communications. The model is specialized to the widely used direct conversion quadrature modulator architecture. The EVM, Image and LO rejection performances are modelled and estimated for QAM modulation schemes. Design charts have been extracted to help the design of the building blocks of the modulator. To validate the model a 45GHz - 65GHz MMIC vector modulator, based on a doubly balanced star mixer, has been designed using 0.2 commercial PHEMT process.
Keywords :
digital communication; high electron mobility transistors; microwave devices; millimetre wave devices; modulators; quadrature amplitude modulation; MMIC vector modulator; PHEMT process; QAM modulation; direct conversion quadrature modulator architecture; frequency 45 GHz to 65 GHz; high data rate digital communications; high data-rate millimetre-wave modulator; microwave modulator; Analytical models; Bandwidth; Digital communication; Electronic mail; Frequency; MMICs; Millimeter wave technology; PHEMTs; Streaming media; Testing; MMICs; Modulation; millimeter wave communication; mixers; modeling; nonlinear circuits; wireless LAN;
Conference_Titel :
Integrated Nonlinear Microwave and Millimeter-Wave Circuits (INMMIC), 2010 Workshop on
Conference_Location :
Goteborg
Print_ISBN :
978-1-4244-7410-3
Electronic_ISBN :
978-1-4244-7412-7
DOI :
10.1109/INMMIC.2010.5480109
