Title :
Design of compact dual-band switchable bandpass filter
Author :
Dai, G.L. ; Xia, M.Y.
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing
Abstract :
A compact dual-band switchable bandpass filter is designed using two centrally-loaded open-loop resonators and six pin blocks. The pin diodes are loaded at the zero-voltage points of odd and even modes along the microstrip resonators, such that the two passbands operating at odd and even modes can be individually switched on or off. The isolations for the two passbands are greater than 20 dB.
Keywords :
band-pass filters; circuit switching; microstrip resonators; p-i-n diodes; centrally-loaded open-loop resonators; dual-band switchable bandpass filter design; microstrip resonators; pin diodes; zero-voltage points;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.0601
