A compact ultra-wideband (UWB) bandpass filter with improved upper stopband using open/shorted stubs is proposed in this letter. Seven transmission zeros in the upper stopband can be realized by different open/shorted stubs. The bandwidth of the UWB bandpass filter can be adjusted easily by changing the characteristic impedance of the open/shorted stubs. A UWB bandpass filter with 3-dB fractional bandwidth of 123% (0.5-1.9 GHz) is fabricated and measured. Good agreement can be observed between simulated and measured performances.
No takes yet. Share an insight, caveat, or question.
Gao et al. (2017) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: