Reconfigurable Bandpass Filter With Separately Relocatable Passband Edge
Journal
IEEE Microwave and Wireless Components Letters
Journal Volume
22
Journal Issue
11
Pages
559--561
Date Issued
2012-11
Author(s)
Abstract
A reconfigurable bandpass filter (BPF) with separately relocatable passband edges is demonstrated. The proposed design approach exploits simple stub-based structures and varactor-tuned microwave resonators for the BPF realization. The filter bandwidth reconfigurability is obtained via a separate relocation of each passband edge, and the harmonics inherited in the varactor-tuned microwave resonators are easily suppressed with the stub-based structures. The fabricated filter has a low passband insertion loss (<2.0 dB), a 21.8 % higher band edge tuning range, a 18.2 % lower band edge tuning range, as well as wideband suppression (>15 dB at the frequencies up to 5.5 GHz). © 2001-2012 IEEE.
SDGs
Type
journal article