Title :
Influence of crosstalk in switchable optical time-delay networks for microwave array antennas
Author :
Schäffer, Christian
Author_Institution :
Fachhochschule Lubeck, Germany
fDate :
8/1/1997 12:00:00 AM
Abstract :
Switchable optical time-delay (TD) networks are used for the phase control of array antennas and for microwave signal processing because of their wide instantaneous bandwidth. In each optical switch, crosstalk signals are generated and its influence on the microwave phase accuracy is investigated. Due to the crosstalk of the switches, each stage forms an interferometer which converts the phase noise of the optical source into amplitude noise whose influence on the microwave phase is analyzed
Keywords :
array signal processing; integrated optics; microwave antenna arrays; optical crosstalk; optical delay lines; optical information processing; optical switches; phase control; phase noise; amplitude noise; crosstalk signals; interferometer; microwave array antennas; microwave phase accuracy; microwave signal processing; optical switch; phase control; phase error; phase noise; switchable optical time-delay networks; Microwave antenna arrays; Optical arrays; Optical crosstalk; Optical fiber networks; Optical interferometry; Optical signal processing; Optical switches; Optical variables control; Phase noise; Phased arrays;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
