What is it about?
Directive enlarged fundamental resonances in photonic crystal resonator eliminate wavevectors in the corresponding directions and steer energy flow in the right directions. A prototype of photonic crystal directive antenna was constructed, and directional radiations have been confirmed in the microwave.
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Why is it important?
We provided a novel strategy to realize directional radiations based on photonic lattice induced fundamental resonance. This is important in directive antennas, point-to-point terrestrial and space communication, and broadcast communication satellite. The iconic features of compact structure, simple fabrication process, and high directivity make it portable and suitable in applications of remote sensing and wireless communication.
Perspectives
It is a pleasure process to collaborate with co-authors. I hope this article make more counterparts aware of our works and have in-depth and long-term cooperation.
Guoyan Dong
University of the Chinese Academy of Sciences
Read the Original
This page is a summary of: Spatial observation of highly directional radiation from a compact 3D photonic-crystal antenna in Ku band, Applied Physics Letters, December 2022, American Institute of Physics,
DOI: 10.1063/5.0133004.
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