Browsing by Author "Hsu, Fu-Chieh"

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Design of loop resonator filters with a dual-passband response
(2005)
Hsu, Ching-Luh
;
Kuo, Jen-Tsai
;
Hsu, Fu-Chieh
;
電信工程研究所
;
Institute of Communications Engineering
Design method is presented for loop resonator fliters with a dual-passband response. The loop resonator is equipped with stepped-impedance junctions, so that its second passband can be tuned, relative to the fundamental frequency f(1), by its geometric parameters. Analysis of the resonant characteristics of a loop resonator is formulated by the transmission line theory. Through proper tapped input/output couplings, bandpass filters with a dual-passband response can be achieved. Measured results of two fabricated circuits show good agreement with the simulation.