Abstract
In this paper, we design and fabricate a coplanar waveguide (CPW) bandpass filter operating at 60 GHz. A new DGS pattern is proposed and serves as the unit cell. We cascade two unit cells to construct a second-order bandpass filter. The equivalent lumped element circuit model was extracted form the full-wave electromagnetic simulation. Moreover, we obtain good agreement between circuit model analysis and simulation. The measurement results for the proposed bandpass filter reveals a 3 dB pass band with a bandwidth of 6.8 GHz. Furthermore, the insertion loss at 60 GHz is less than 2 dB.
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