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Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32176
Abstract: A conical beam antenna array with fixed‐frequency scanning capability is proposed. Twelve open waveguide radiating elements filled with microwave ferrite on a metal ground plane are evenly distributed around a circle to realize small gain…
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Keywords:
conical beam;
antenna array;
beam;
fixed frequency ... See more keywords
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Published in 2020 at "Optics express"
DOI: 10.1364/oe.391623
Abstract: We present a Raman spectroscopy setup containing a conical beam shaper in combination with a freeform segmented reflector for surface enhanced Raman scattering (SERS) analysis. The freeform segmented reflector and the conical beam shaper are…
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Keywords:
conical beam;
segmented reflector;
beam shaper;
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Published in 2022 at "Optics express"
DOI: 10.1364/oe.454069
Abstract: We investigate the dynamic evolution and self-healing properties of the bored helico-conical beams with different filter parameter S in this paper. The relative error coefficient, D, is utilized to judge the self-healing effect of the…
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Keywords:
conical beam;
helico conical;
self healing;
bored helico ... See more keywords
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Published in 2023 at "Photonics"
DOI: 10.3390/photonics10050577
Abstract: A controllable helico-conical beam is proposed in this paper. The intensity patterns and the local spatial frequency of the controllable helico-conical beams in the focal region are analyzed in detail. The results show that the…
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Keywords:
controllable helico;
beam generated;
conical beam;
helico conical ... See more keywords