Title :
Optically controlled oscillators for millimeter-wave phased-array antennas
Author :
Sturzebecher, Dana J. ; Zhou, Xiangdong ; Zhang, Xue-Song ; Daryoush, Afshin S.
Author_Institution :
LABCOM, Ft. Monmouth, NJ, USA
Abstract :
An approach for the design of optically synchronized millimeter-wave local oscillators based on a subharmonically injection-locked phase-lock-loop technique is introduced. The experimental results support the desired goal of frequency and phase coherency, phase shift control of millimeter-wave oscillators, and self-oscillating mixing to downconvert a millimeter-wave RF signal. Experimental results and theoretical analysis show the advantages of the proposed approach: large locking range of two subharmonically locked oscillators, lower FM noise degradation, and smaller phase error caused by frequency detuning
Keywords :
antenna phased arrays; microwave antenna arrays; microwave oscillators; phase-locked loops; solid-state microwave circuits; synchronisation; FM noise; MM-wave LO; RF signal downconversion; frequency coherency; frequency detuning; millimeter-wave; millimeter-wave local oscillators; optical synchronisation; phase coherency; phase error; phase shift control; phase-lock-loop; phased-array antennas; self-oscillating mixing; subharmonically injection-locked; Degradation; Frequency synchronization; Injection-locked oscillators; Local oscillators; Millimeter wave technology; Optical control; Optical design; Optical design techniques; Optical mixing; Phase noise;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
