An Efficient Compact Blazed Grating Antenna for Optical Phased Arrays
Zenodo (CERN European Organization for Nuclear Research)(2023)
摘要
Phased arrays are vital in communication systems and have received significant interest in the field of optoelectronics and photonics, enabling a wide range of applications such as LiDAR, holography, wireless communication, etc. In this work, we present a blazed grating antenna that is optimized to have upward radiation efficiency as high as 80% with a compact footprint of 3.5 {\mu}m \times 2 {\mu}m at an operational wavelength of 1.55 {\mu}m. Our numerical investigations demonstrate that this antenna in a 64 \times 64 phased array configuration is capable of producing desired far-field radiation patterns. Additionally, our antenna possesses a low side lobe level of -9.7 dB and a negligible reflection efficiency of under 1%, making it an attractive candidate for integrated optical phased arrays.
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