In this letter, a novel ultra-wideband (UWB) conplanar waveguide (CPW) bandpass filter was propsed on the Al2O3 ceramic substrate. In addition, the main operated bandwidth can be extended to 3.01~10.82GHz, which could be usable for the UWB applications. And fourth stubs are added into this structure to control the characteristics of the UWB filter (frequency and bandwidth). Moreover, the gap between the input/output ends and central resonator (denoted A) could be used to control the bandwidth effectively. Because of the high dielectric constant and quality of the Al2O3 ceramic substrate are used, the size of this UWB filter is only 25x20mm and the performance could be also modified.
Relation:
2008 Internaonal Symposium on Nano Science and Technoogy Internaonal Symposium on Nano Science and Technoogy
