Title :
Demonstration of a G-Band Transceiver for Future Space Crosslinks
Author :
Sarkozy, Stephen ; Vukovic, Maja ; Padilla, J.G. ; Chang, Joana ; Tseng, G. ; Tran, P. ; Yocom, P. ; Yamasaki, W. ; Leong, Kevin M. K. H. ; Lee, Wei-Jen
Author_Institution :
Northrop Grumman Corp., Redondo Beach, CA, USA
Abstract :
This letter reports on the demonstration of a transceiver operating from 190 to 200 GHz. The system is assembled using splitblock waveguide integrated microwave assemblies, with MMICs realized using advanced InP HEMTs with sub-50 nm gate lengths. Across the band a receiver noise figure 6 dB and transmitter output power >20 dBm have been demonstrated. A table top link demonstrated successful QPSK and QAM modulation and demodulation using a 196 GHz carrier wave. Filtering was built into the system to ensure low in-band spurious response.
Keywords :
III-V semiconductors; MMIC; demodulation; high electron mobility transistors; indium compounds; microwave filters; quadrature amplitude modulation; quadrature phase shift keying; radio transceivers; telecommunication links; G-band transceiver; HEMT; InP; MMIC; QAM demodulation; QPSK; carrier wave; frequency 190 GHz to 200 GHz; future space crosslinks; gate lengths; low in-band spurious response; receiver noise figure; size 50 nm; splitblock waveguide integrated microwave assemblies; table top link; transmitter output power; HEMTs; MMICs; MODFETs; Mixers; Noise; Power generation; Receivers; $G$-band; HEMT; InP; MILSATCOM; PA; low noise amplifier (LNA); mixer; transceiver;
Journal_Title :
Terahertz Science and Technology, IEEE Transactions on
DOI :
10.1109/TTHZ.2013.2276118
