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A dual-mode T-shape stub loaded bandpass filter (BPF) with wide stopband is proposed. To design a narrow BPF for suitable use in 5.8 GHz radio frequency identification (RFID) and worldwide interoperability for microwave access (WiMax) applications, a dual-mode T-shape stub-loaded resonator (TSSLR) is introduced and studied. Due to the symmetrical plane, odd-even mode theory can be adopted to characterize...
In this article, a compact dual‐mode dual‐band bandpass filter is proposed by using two modified stepped‐impedance open‐loop resonators and center‐loaded bars. The dual‐mode resonators are created by loading two center‐loaded bars, and this process is investigated through dual‐mode filter analysis. The external quality factor and the coupling coefficient is introduced and analyzed to optimize the...
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