Miniaturized microstrip lowpass filter with wide stopband using double equilateral U-shaped defected ground structure

@article{Ting2006MiniaturizedML,
  title={Miniaturized microstrip lowpass filter with wide stopband using double equilateral U-shaped defected ground structure},
  author={Sio-Weng Ting and Kam-Weng Tam and R. P. Martins},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2006},
  volume={16},
  pages={240-242}
}
A compact double equilateral U-shaped defected ground structure (DGS) unit is proposed. In contrast to a single finite attenuation pole characteristic offered by the conventional dumbbell DGS, the proposed DGS unit provides dual finite attenuation poles that can be independently controlled by the DGS lengths. A 2.4-GHz microstrip lowpass filter using five cascaded double U-shaped DGS units is designed and compared with conventional DGS lowpass filters. This low pass filter achieves a wide… CONTINUE READING
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