Super phase array
نویسنده
چکیده
For a long time, phase arrays have been used in a variety of wave transmission applications because of their simplicity and versatility. Conventionally, there is a trade-off between the compactness of a phase array and its directivity. In this paper, we demonstrate how by embedding a normal phase array within a superlens (made of negative refractive index material) we can overcome this constraint, and create compact phase arrays with a virtual extent much larger than the physical size of the array. In this paper, we also briefly discuss the apparent unphysical field divergences in superlenses, and how to resolve this issue. 1 Author to whom any correspondence should be addressed. New Journal of Physics 12 (2010) 033047 1367-2630/10/033047+15$30.00 © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
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