منابع مشابه
Super phase array
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 constrai...
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This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...
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The angular resolution of many commercial imaging systems is limited, not by diffraction or optical aberrations, but by pixilation effects. Multiaperture imaging has previously demonstrated the potential for super-resolution (SR) imaging using a lenslet array and single detector array. We describe the practical demonstration of SR imaging using an array of 25 independent commercial-off-the-shel...
متن کاملReprogrammable optical phase array.
A novel reprogrammable optical phase array (ROPA) device is presented as a reconfigurable electro-optic element. One specific application of the ROPA, a 1 x 6 electro-optic space switch, is fully described. Switching angles are within 2 degrees , and switching is achieved through a complementary metal-oxide semiconductor (CMOS) controlled, diffraction based, optical phase array in a bulk BaTiO3...
متن کاملDeterministic phase measurements exhibiting super-sensitivity and super-resolution
Clemens Schäfermeier,1, 2 Miroslav Ježek,1, 3 Lars S. Madsen,1, ∗ Tobias Gehring,1 and Ulrik L. Andersen1, † 1Technical University of Denmark, Department of Physics, Fysikvej 309, 2800 Kongens Lyngby, Denmark 2Kavli Institute of Nanoscience, Delft University of Technology, 2628 CJ Delft, The Netherlands 3Department of Optics, Faculty of Science, Palacky University, 17. listopadu 1192/12, 77146 ...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2010
ISSN: 1367-2630
DOI: 10.1088/1367-2630/12/3/033047