Performance improvement and size reduction of microstrip dual-mode bandpass filter |
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Authors: | Kang W Hong W Zhou JY |
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Affiliation: | Southeast Univ., Nanjing; |
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Abstract: | A novel miniaturised dual-mode bandpass filter with multi-arc resonators is proposed. The size of the dual-mode filter can be reduced significantly by using the microstrip dual-mode resonator consisting of multi-arcs; meanwhile insertion loss and spurious response suppression are improved A prototype filter is designed and implemented at 3.6 GHz with 2.8% fractional bandwidth, which shows a low passband insertion loss of 1.02 dB and a wide stopband with rejection better than 20 dB up to about 8.5 GHz. |
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