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Design of compact dual-band switchable bandpass filter

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2 Author(s)
G. L. Dai ; Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing ; M. Y. Xia

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.

Published in:

Electronics Letters  (Volume:45 ,  Issue: 10 )