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Frequency-reconfigurable wideband bandstop filter using varactor-based dual-slotted defected ground structure.
Zhibin Zeng
Lei Bai
Published in:
IEICE Electron. Express (2021)
Keyphrases
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low cost
median filter
frequency response
image restoration
tree structure
hierarchical structure
structural information
signal to noise ratio
graph structure
hardware implementation
preprocessing step