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In this paper, a new type of dumbbell-shaped defected ground structure (DGS) called spiral DGS is introduced, which adopts spiral capacitance instead of direct slot capacitance. When compared with direct slot capacitance, spiral capacitance can improve coupling of capacitance, thus lower resonant frequency is obtained for the same circuit size. Simulated results show that a 3.57 GHz lower resonance...
In this paper, a compact coplanar waveguide (CPW) resonant cell is introduced, which can exhibit dual-bandgap characteristics by only single unit. The same pattern has been adopted in the microstrip line as reported previously and here is applied to CPW. Experimental results show good agreement with numerical results. By alternating the relative position between CPW defected ground structure (DGS)...
This article presented a novel bandpass microwave filter, which is synthesized split‐ring resonators (SRR) with dual‐mode filters techniques. The structure of this filter is simple and compact size, low insertion loss, and higher capability of power handling. With the structure of SRR and the method of straightway connect triangular resonator, It has remarkable advantages, such as lower ripple level,...
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