Title :
Pseudo-elliptic bandpass filter with subharmonic stubs
Author :
Malherbe, J.A.G.
Author_Institution :
Dept. of Electr., Electron. & Comput. Eng., Univ. of Pretoria, Pretoria, South Africa
Abstract :
A simple bandpass filter that approximates equal ripples in both the pass band and the stopband is described. The filter comprises two stubs, resonant at one-half and one-quarter of the centre frequency, respectively, and a series overlay capacitor. The filter has a performance comparable to that of a third-order elliptic function filter and has a practical bandwidth of 16-34%.
Keywords :
band-pass filters; elliptic filters; equivalent circuits; pseudo-elliptic bandpass filter; series overlay capacitor; subharmonic stubs; third-order elliptic function filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2586
