Title :
An active transversal filter MMIC for very high speed lightwave systems
Author :
Jamani, Y. ; Freundorfer, A.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, Ont., Canada
Abstract :
An equalizer using cascode MESFETs in a distributed structure has been designed for pulse shaping data in high speed lightwave systems. Pulse shaping is accomplished by controlling the gain of each individual cascode stage separately in the distributed circuit. The circuit was fabricated in a microwave monolithic integrated circuit (MMIC) implementation using Nortel´s 0.8 /spl mu/m GaAs MESFET technology. Frequency response measurements demonstrate that the bandwidth can be controlled up to 8 GHz. Eye pattern measurements demonstrate the ability to control the pulse shape at 5 Gb/s.
Keywords :
field effect MMIC; 0.8 micron; 5 Gbit/s; GaAs; III V semiconductor; MESFET technology; Nortel; active transversal filter MMIC; bandwidth control; cascode MESFET; distributed structure; equalizer; eye pattern measurements; fractionally spaced equalization; frequency response measurements; high speed lightwave systems; microwave monolithic integrated circuit; pulse shape control; pulse shaping data; very high speed lightwave systems; Equalizers; Integrated circuit measurements; MESFETs; MMICs; Monolithic integrated circuits; Pulse measurements; Pulse shaping methods; Shape control; Shape measurement; Transversal filters;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.631786
