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Dual-Band Spiral Printed Quadrifilar Helical Antenna Miniaturized by Surface and Inner Dielectric Loading.
Yunan Han
Haoliang Wang
Ziwei Wang
Yuchen Yao
Yingjie Feng
Kunkun Hu
Yuan Gao
Zhipeng Fan
Siyu Yuan
Published in:
IEEE Access (2019)
Keyphrases
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dual band
narrow band
microstrip
three dimensional
d objects
silicon dioxide
level set
transmission line
computer vision
dielectric constant
image quality
power system
waveguide