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Millimeter wave frequency bands have been explored to enhance the radio resource. Developments of low loss millimeter wave filters are also expected. In this paper, a low loss Ka-band 2-pole narrowband bandpass filter for a planar type circuit is proposed. The filter is constituted with a coplanar type circular slot resonator with a dual resonance mode and high Q value. The simulated and measured...
We need two band-pass filters (BPF) to realize a filtering system having two discrete passbands. In this report, we propose a BPF with dual-pass bands using EH<11δ> mode and HE<11δ> mode dielectric rod resonators. The BPF has probes that excite only EH<11δ> mode or HE<11δ> mode. Therefore, two discrete passbands can be obtained with one dielectric ring resonator. Furthermore,...
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