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Design of a polarization independent bandpass filter based on cross and two dimensional wire lattice metamaterial is presented. Introducing wires among the dipoles transforms its bandstop characteristics to bandpass characteristics. By applying above principle to cross shaped metamaterials a polarization independent bandpass characteristic is demonstrated.
A novel selectable low- and bandpass filter for 2.4 GHz wireless communication systems is proposed and realised by low temperature co-fired ceramic (LTCC) technology. The proposed filter consists of a lowpass filter (LPF), a bandpass filter (BPF), and a common matching network, which are fully embedded in the LTCC substrate. The suggested idea is that the filter can be selectively chosen and operated...
A four-channel switched microwave filter was demonstrated incorporating a switched optical resonator, which is constructed by integrating a 1 x 4 space switch with arrayed ring filters featuring different free spectral ranges. The four channels centred at 10, 16, 18 and 20 GHz were individually selected to provide a bandpass filtering via the control voltage applied to the switched resonator.
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