TY - GEN
T1 - Compact interdigitated microstrip bandpass filter with meandered EBGs
AU - Alphones, Arokiaswami
AU - Cheng, Jin
PY - 2009
Y1 - 2009
N2 - A compact microstrip bandpass filter using interdigital coupled line and meandered electromagnetic bandgap (EBG) slots is proposed in this paper. It is a microstrip structure with meander EBG slots etched in the ground plane, and interdigital capacitors in the signal strip which contribute to the series capacitance. In addition, the finger of the interdigital is shorted to ground through via holes, which results in the shunt inductance. The combination of series capacitor and shunt inductor is useful to realize the left-handed metamaterial, and improve the frequency selectivity. The filter, consisting of three cells, has a resonant frequency of 5.2GHz and a fractional 3dB bandwidth of 5.7%. A return loss of 18 dB and a maximum of 1.02 dB insertion loss in the pass-band are achieved. The resonator size is 5.4mmx3.8mm, which is 0.15 λg x0.11 λg, where λg is the guided wavelength at centre frequency.
AB - A compact microstrip bandpass filter using interdigital coupled line and meandered electromagnetic bandgap (EBG) slots is proposed in this paper. It is a microstrip structure with meander EBG slots etched in the ground plane, and interdigital capacitors in the signal strip which contribute to the series capacitance. In addition, the finger of the interdigital is shorted to ground through via holes, which results in the shunt inductance. The combination of series capacitor and shunt inductor is useful to realize the left-handed metamaterial, and improve the frequency selectivity. The filter, consisting of three cells, has a resonant frequency of 5.2GHz and a fractional 3dB bandwidth of 5.7%. A return loss of 18 dB and a maximum of 1.02 dB insertion loss in the pass-band are achieved. The resonator size is 5.4mmx3.8mm, which is 0.15 λg x0.11 λg, where λg is the guided wavelength at centre frequency.
UR - http://www.scopus.com/inward/record.url?scp=72949089075&partnerID=8YFLogxK
U2 - 10.1109/EUMC.2009.5296392
DO - 10.1109/EUMC.2009.5296392
M3 - Conference contribution
AN - SCOPUS:72949089075
SN - 9782874870118
T3 - European Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009
SP - 439
EP - 443
BT - European Microwave Week 2009, EuMW 2009
T2 - European Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies - 39th European Microwave Conference, EuMC 2009
Y2 - 28 September 2009 through 2 October 2009
ER -