TY - JOUR
T1 - Microstrip hairpin bandpass filter using modified minkowski fractal-shape for suppression of second harmonic
AU - Lalbakhsh, Ali
AU - Lotfi Neyestanak, Abbas Ali
AU - Naser-Moghaddasi, Mohammad
PY - 2012
Y1 - 2012
N2 - In this paper, a novel microstrip hairpin-line bandpass filter which employs a modified Minkowski fractal shape is proposed. Although conventional hairpin-line filters are popular for RF front ends, they suffer from undesired spurious responses located at the second harmonic, which causes asymmetry in the upper skirt band. By proper design, the second harmonic of fractal filters can be significantly suppressed through the use of fractal shape. To validate this novel geometry, the proposed filters are fabricated and measured. Simulated results are in good agreement with measured results.
AB - In this paper, a novel microstrip hairpin-line bandpass filter which employs a modified Minkowski fractal shape is proposed. Although conventional hairpin-line filters are popular for RF front ends, they suffer from undesired spurious responses located at the second harmonic, which causes asymmetry in the upper skirt band. By proper design, the second harmonic of fractal filters can be significantly suppressed through the use of fractal shape. To validate this novel geometry, the proposed filters are fabricated and measured. Simulated results are in good agreement with measured results.
KW - Fractal
KW - Microstrip filter
KW - Second harmonic suppression
UR - http://www.scopus.com/inward/record.url?scp=84857863201&partnerID=8YFLogxK
U2 - 10.1587/transele.E95.C.378
DO - 10.1587/transele.E95.C.378
M3 - Article
VL - E95-C
SP - 378
EP - 381
JO - IEICE Transactions on Electronics
JF - IEICE Transactions on Electronics
SN - 0916-8524
IS - 3
ER -