Title :
Differential six-port modulator
Author :
Owais, J.O. ; Shaofang Gong
Author_Institution :
Dept. of Sci. & Technol. ITN, Linkoping Univ., Norrkoping, Sweden
Abstract :
A differential six-port modulator for the 7 - 8 GHz band is reported for the first time. It is composed of a differential six-port correlator with cold-mode field effect transistors used as impedance terminations, controlled via baseband signal on the gate to source terminal. It is fabricated using double-sided parallel-strip lines. The differential modulator has the advantage of low power consumption, compactness and high signal to noise ratio. A prototype has been fabricated and data transmission with 256-quadrature amplitude modulation at 50 Msymbol/s is demonstrated.
Keywords :
data communication; modulators; quadrature amplitude modulation; strip lines; ultra wideband technology; 256-quadrature amplitude modulation; baseband signal; cold-mode field effect transistor; data transmission; differential six-port correlator; differential six-port modulator; double-sided parallel-strip line; frequency 7 GHz to 8 GHz; gate to source terminal; impedance termination; low power consumption; Couplers; Demodulation; Microwave FET integrated circuits; Microwave circuits; Microwave oscillators; Radio frequency; Differential; carrier suppression; modulator; six-port;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096811
