Title :
High-speed millimeter-wave modulator/demodulator
Author :
Schneider, M.V. ; Trambarulo, R. ; Gnauck, A. ; Gans, M.J.
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
Abstract :
A report is presented on the performance of a millimeter-wave quaternary phase shift keyed (QPSK) modulator/demodulator at information rates up to 8 Gb/s. The circuits operate in the 40-GHz range and are subharmonically pumped by local oscillators at half the carrier frequencies. The demodulated output data streams showed clean eye diagrams with corresponding bit error rates of less than 10/sup -11/ up to the highest rate measured (8-Gb/s total information rate).<>
Keywords :
modems; phase shift keying; solid-state microwave circuits; 40 GHz; 8 Gbit/s; QPSK; bit error rates; clean eye diagrams; demodulated output data streams; information rates; millimeter-wave modulator/demodulator; subharmonically pumped; Bit error rate; Current-voltage characteristics; Demodulation; Frequency conversion; Information rates; Local oscillators; Millimeter wave circuits; Mixers; Phase modulation; Quadrature phase shift keying;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99654
