Title :
Reconfigurable bandstop filter with wide tuning range
Author :
Wang, Z.P. ; Kelly, Jonathan ; Hall, Peter S.
Author_Institution :
Sch. of Electron. Inf. Eng., Beihang Univ., Beijing, China
Abstract :
A reconfigurable bandstop filter consisting of a parallel coupled line and two varactor diodes is reported. The stopband of the filter can be tuned from 0.47 to 1.67 GHz by varying the capacitance of the varactor diodes. Although still present, the first harmonic is significantly attenuated.
Keywords :
band-stop filters; circuit tuning; microstrip filters; varactors; frequency 0.47 GHz to 1.67 GHz; parallel coupled line; reconfigurable bandstop filter; varactor diodes; wide tuning range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.0886
