Title :
Optically controlled generation and true-time-delay phase-shifts of broad-band 60-GHz signals
Author :
Huang, Sheng-Lung L. ; Lee, Chi H. ; Hung, Hing-Loi A.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
Abstract :
A new technique of generating true-time-delay phase shifts of broadband microwave and millimeter-wave signals through optical control has been demonstrated. Continuous and precise phase shift with a range of 360 degrees has been achieved without millimeter-wave signal loss. The microwave/millimeter-wave circuit and the optic-electronic intermixing structure can be monolithically integrated. Optical fiber distribution of the picosecond triggering pulses could be applied. The potential applications of this optical control technique are in phased-array radar and satellite-borne communication systems.<>
Keywords :
delays; microwave circuits; microwave generation; phase control; phase shifters; synchronisation; EHF; MM-wave circuit; broadband signals; microwave signals; millimeter-wave circuit; millimeter-wave signals; optical fibre distribution; optically controlled generation; phased-array radar; photoconductive switches; picosecond triggering pulses; satellite-borne communication systems; true-time-delay phase-shifts; Microwave generation; Microwave theory and techniques; Millimeter wave circuits; Millimeter wave communication; Millimeter wave integrated circuits; Millimeter wave radar; Millimeter wave technology; Optical control; Optical losses; Signal generators;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
