TY - JOUR
T1 - Superconducting Spiral Wide Band-Pass Filters with Wide Upper Stop-Band
AU - Huang, Frederick
PY - 2005/7/1
Y1 - 2005/7/1
N2 - Wide-band superconducting spiral bandpass filters have been successfully designed and tested. This extends the range of parameters that can be implemented using spirals. The shape of the spiral resonators was significantly modified to achieve the higher coupling coefficients required. A wide upper stopband was produced by using quarter-wave resonators for some of the spirals, and by shifting the second harmonic upwards for the others. One of the filters is eighth order with 1560-MHz center frequency and 27% bandwidth, and has an active area of only 9 mm x 6 mm.
AB - Wide-band superconducting spiral bandpass filters have been successfully designed and tested. This extends the range of parameters that can be implemented using spirals. The shape of the spiral resonators was significantly modified to achieve the higher coupling coefficients required. A wide upper stopband was produced by using quarter-wave resonators for some of the spirals, and by shifting the second harmonic upwards for the others. One of the filters is eighth order with 1560-MHz center frequency and 27% bandwidth, and has an active area of only 9 mm x 6 mm.
UR - http://www.scopus.com/inward/record.url?scp=23144462690&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2005.850434
DO - 10.1109/TMTT.2005.850434
M3 - Article
SN - 1557-9670
VL - 53
SP - 2335
EP - 2339
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 7
ER -