A K-band, varactor-tuned dynamic metasurface aperture for microwave computational imaging
2023 IEEE Conference on Antenna Measurements and Applications (CAMA)(2023)
摘要
We present a substrate-integrated waveguide-fed metasurface design for K-band microwave computational imaging. Integration of varactors into each metamaterial element enables grayscale control of the element’s resonant response, allowing for increased flexibility in the attainable radiation patterns over those of a binary metasurface using PIN diodes. We describe the element design and performance, and give preliminary experimental results.
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关键词
metasurface,microwave imaging,computational imaging
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