Title :
A direct digital 1 Gb/S modulator/demodulator experiment in free space using GaAS HBT at 30 GHZ
Author :
Freundorfer, A.P. ; Hamed, K. ; Sun, Y. ; Antar, Y. ; Frank, P. ; Sawatzky, D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queens Univ., Kingston, ON
Abstract :
A QPSK modulator (MOD) and demodulator (DEMOD) in InGaP/GaAs HBT process and its measured performance are reported. When connected in a wireless configuration using two ultra wideband antenna, it was demonstrated to have throughput of greater than 1 Gb/s at 30 GHz. This is the first time these results have been reported.
Keywords :
III-V semiconductors; demodulators; gallium arsenide; heterojunction bipolar transistors; indium compounds; microwave devices; modulators; quadrature phase shift keying; ultra wideband antennas; GaAs; HBT process; InGaP; QPSK demodulator; QPSK modulator; direct digital modulator-demodulator; free space; frequency 30 GHz; ultra wideband antenna; Binary phase shift keying; Couplers; Demodulation; Digital modulation; Gallium arsenide; Heterojunction bipolar transistors; Phase modulation; Quadrature phase shift keying; Ultra wideband antennas; Ultra wideband technology; Demodulation; Microwave Modulation; Microwave receivers; Mixer; Multiplier;
Conference_Titel :
Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-1642-4
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2008.4564694
