Optically Controlled Phased Array Radar Receiver Using SLM Switched Real Time Delays
نویسنده
چکیده
We report the results of a demonstration of a real time delay, optically controlled phased array radar receiver. This implementation employed a free space configuration based upon an optical switching network using liquid crystal spatial light modulators (SLM’s). A three-delay unit, two-antenna array receiver was implemented at an optical wavelength of 1.3 pm and demonstrated “squint-free” operation over the entire X-band (8-12 GHz) with an angular accuracy of 1.4”. Finally, a novel configuration for the two-antenna element SLM architecture was proposed and demonstrated equivalent system performance with a reduction in the number of components.
منابع مشابه
Multiwavelength Optically Controlled Phased-array Antennas - Microwave Theory and Techniques, IEEE Transactions on
A novel multiwavelength scheme is proposed and demonstrated for one-dimensional (1-D) and two-dimensional (2-D) optically controlled phased-array antenna (OCPAA) systems with true time delay (TTD). This hardware-compressive architecture employs a multiwavelength laser source in conjunction with a programmable dispersion matrix (PDM) and switched optical delay lines (SODL’s) to generate all the ...
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تاریخ انتشار 2004