TY - JOUR 
A1 - Ruiz Martínez, Juan de Dios
AU - Martínez Viviente, Félix Lorenzo
AU - Hinojosa Jiménez, Juan
T1 - 1D Koch fractal electromagnetic bandgap microstrip structures with r/a ratios higher than 0.5
Y1 - 2011
SN - 1098-2760
UR - http://hdl.handle.net/10317/1903
AB - A 1-D Koch fractal electromagnetic bandgap (KFEBG) microstrip structure is
proposed. It is conceived by replacing the conventional holes etched in the ground plane of a
microstrip line by level-1 Koch fractal cell geometries, which have been obtained from a
hexagonal shape. In the case of the conventional 1-D EBG microstrip structure with periodic
hole pattern, the design is limited to r / a ratios lower than 0.45, while the proposed pattern
allows achieving r / a ratios higher than 0.5. It is shown the conventional EBG and KFEBG
microstrip structures behave as a stopband filter as r / a ≤ 0.45 . However, for r/ a = 0.55,
the measurements have confirmed that the 1-D KFEBG microstrip structure presents a ultrawide
stopband and, therefore, the proposed structure with r / a > 0.5 can be useful for the
design of low-pass filters.
KW - Electrónica
KW - Electromagnetic bandgap structures
KW - Filter
KW - Fractal structures
KW - Microstrip
LA - spa
PB - John Wiley & Sons
ER -