Title :
Pseudo-elliptic function ultra wideband bandstop filter with stepped impedance stubs
Author :
Malherbe, J.A.G.
Author_Institution :
Dept. of Electr., Univ. of Pretoria, Tshwane, South Africa
Abstract :
This paper describes a new pseudo-elliptic structure that has the same number of transmission zeros as comparable Cauer filters. The filter differs from previous structures in that it has two three-section stepped stubs which contribute an additional transmission zero, ensuring even better performance and substantially increased range of realizable stopband attenuation levels.
Keywords :
band-stop filters; passive filters; poles and zeros; Cauer filters; pseudoelliptic function ultra wideband bandstop filter; stepped impedance stubs; three section stepped stubs; transmission zeros; Bandwidth; Filtering theory; Microwave filters; Passband; Power transmission lines; Prototypes; Transforms; Stepped impedance stubs; UWB bandstop filter; pseudo-elliptic filter;
Conference_Titel :
Microwave Conference (EuMC), 2014 44th European
Conference_Location :
Rome
DOI :
10.1109/EuMC.2014.6986489
