Title :
Zolotarev bandpass filters
Author_Institution :
HF Plus, Chatsworth, CA, USA
fDate :
12/1/2001 12:00:00 AM
Abstract :
Zolotarev rational functions may be used in certain bandpass filter applications for which two narrower passbands are required. Coupled-resonator low-pass prototypes for narrow bandpass filters based on even- and odd-degree Zolotarev functions are synthesized using a transformed variable. Compared to other filters, those with Zolotarev responses have sharper skirt selectivity, resulting in lower passband distortion
Keywords :
Chebyshev approximation; Chebyshev filters; band-pass filters; elliptic filters; low-pass filters; microwave filters; passive filters; rational functions; resonator filters; Chebyshev filters; Zolotarev bandpass filter; Zolotarev rational functions; circuit synthesis; coupled-resonator low-pass prototypes; delay performance; elliptic filters; even-degree Zolotarev functions; lower passband distortion; narrower passbands; odd-degree Zolotarev functions; optimum equiripple; passive filters; resonator filters; skirt selectivity; transformed variable; Band pass filters; Chebyshev approximation; Filtering theory; Frequency; Function approximation; Low pass filters; Microwave filters; Passband; Passive filters; Resonator filters;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
