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A dual band band-pass filter using ring resonator and defected ground structure is presented in this paper. In design, a ring resonator is used to generate two pass bands, and two defected ground structures help to realize high impedance microstrip lines, which make the control process of the two pass band frequencies convenient. To verify the design, a dual band band-pass filter is simulated and...
In this paper, an ultra-wideband (UWB) bandpass filter with a frequency notch is designed and implemented. The proposed filter is based on coupled microstrip line with U-shaped defected ground structure (DGS). By introducing embedded open stubs (EOS) into input and output feed lines, the UWB bandpass filter can get a band-notched characteristic at the appointed frequency band. Several compensatory...
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