1 January 2004 Beam steering with photonic crystal horn radiators
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Optical Engineering, 43(1), (2004). doi:10.1117/1.1627772
Abstract
A photonic crystal (PhC) horn is presented. Using the finite-difference time-domain method with the perfectly matched layer (PML) absorbing boundary condition (ABC) in inhomogeneous media, we optimize the mismatch factor between a PhC horn and waveguide to achieve high radiation efficiency. The optimized PhC horn is then used to construct an horn array of 25 elements, whose element weights and element positions are optimized using simulated annealing (SA) to acheive continuous beam steering in the range between –15 and 15 deg with the maximum side lobe of less than –10 dB.
Caihua Chen, Shouyuan Shi, Dennis W. Prather, Ahmed S. Sharkawy, "Beam steering with photonic crystal horn radiators," Optical Engineering 43(1), (1 January 2004). http://dx.doi.org/10.1117/1.1627772
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KEYWORDS
Beam steering

Waveguides

Photonic crystals

Finite-difference time-domain method

Phased array optics

Microwave radiation

Dielectrics

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