Year: 2025
Type: article
Abstract: A multi-parameter tunable filter based on different U-type resonators was proposed in this letter. Through the introducing of back-to-back U-type resonator between two typical U-type resonators, the source/load cross coupling can be introduced between the input/output ports to improve the out of band suppression performance of the filter. Adopting of the structure, the center frequency and the cutoff frequency at the high-frequency end of the bandpass filter can be tuned and the one at low-frequency remains unchanged at the same time. A tunable filter with three resonators was designed, fabricated and measured. The simulated results were agreement well with the measured ones.
Source: IEICE Electronics Express
Authors: Xiaoxiao Xiao, Zhonghai Zhang, Pengquan Zhang
Institution: Hangzhou Dianzi University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4415634960